Gearmax difflock problem-Should've known-please help?

Having problems with your vehicle? Or need advice on repairing or servicing your Hilux? This is the place to ask for help
BenHur
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Thu Mar 27, 2008 8:54 am

Vacuum is die teenoorgestelde van kompressie. In 'n kompressor sit jy meer lug in as wat die tenk se grote is so dan druk jy die lug inmekaar.

Met 'n vacuum doen jy die omgekeerde. Jy suig die lug uit die tank, so die lug wat oorbly word dan "gestretch" om die volume te vul so daar is dan potensiële energie in die vacuum reservoir om lug te suig.

As jy 'n inspuiting se punt toedruk en jy trek die inspuiting se armpie terug "stretch" jy die bietjie lug wat reeds daarin is so dan word jou inspuiting 'n vacuum reservoir.

Daai groot swart tank op jou brake booster is 'n vacuum resevoir, jy het daar wel 'n reservoir nodig want as jy rem trap vloei daar wel lug soos wat jy die rem intrap. Die doel van die vacuum is dat tou rem effektiewelik ingesuig word deur die engine vacuum en so trap die pedaal makliker. So as jou engine full throttle is en nie vacuum kan create nie en jy hou aan rem trap sodat die reservoir leeg loop gaan jou remme al hoe swaarder trap net soos wanneer die engine afgeskakel is. Toets dit bietjie. Sluit jou engine af en trap dadelik die rem. As jy hom die 2de keer trap sal jy voel hy raak swaarder om te trap soos wat die vacuum resevoir leeg (of eintlik is dit vol) word.


Gaan loer bietjie hierso:

http://auto.howstuffworks.com/power-brake2.htm

Kliek op die pyltjie in die prentjie dan wys 'n animasie jou hoe die vacuum die rem insuig as jy begin remtrap.

BenHur
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Thu Mar 27, 2008 9:01 am

Jis julle oenens is vinnig, voor ek my reply post het julle reeds twee gepost.

Naas download daai PDF wat ek by 3RZ gekry het en vroer gelaai het. Kyk na Fig2b op bladsy 3-10 (bladsy 10 van die document) dis hoe jy die ekstra one way valve moet koppel.

Sterkte. Ek en Cassie gaan die naweek syne ook koppel en met 'n vacuum gauge in die stelsel bietjie ry en toets.

Ek wonner nou net of ons die vacuum gauge op die difflock se pyp of tussen Cassie se ore moet koppel

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Thu Mar 27, 2008 9:07 am

Dankie Bennie, dit maak nou meer sin... :shock: 8) :wink:
CasKru wrote:Wat dink jy stoor ons Cheetah supporters tussen ons ore?
Cassie, as ek vir Bennie reg verstaan, en ek luister na wat jy se, dan is daar omgekeerde kompressie(vacuum) tussen die ore en omgekeerde vacuum (kompressie) waar nou weer? Want as ek vir Newton reg verstaan is daar vir elke aksie 'n gelyke en teenoorgestelde reaksie? Dis alles net te veel vir my brein, ek is net 'n dom programmer wat nog nie koffie gehad het vanmore nie... Miskien het ek ook 'n vacuum daar tussen my ore :roll: :twisted: :shock: :twisted:
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BenHur
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Thu Mar 27, 2008 9:10 am

O ja Naas suig daai vacuum valve op jou tiog vas en kyk of hy bly vassit en of hy na 'n rukkie loskom. Dan weet jy of hy nog goed werk en of hy lek. Onthou die vacuum wat jy in die sisteem gaan hê sal nooit eers naby -1bar kom nie. By die kus kan 'n engine wat se ringe nog baie goed is so ongeveer -1bar maak maar hier by ons is dit aansienlik minder.

Volgens die MAP sensor in Bulldog se Dicktator unit idle sy teen -0.6 bar en die maksimum wat sy kon behaal as jy haar so teen 2000 RPM of meer geloop het en jou voet van die petrol afgehaal het is -0.8 todat die spoed weer terugkom na idle toe, so die vacuum is darem nie te groot nie en jou tong kan dit maklik simuleer.


Thys lyk my jy moet maar daai vacuum tussen jou ore van jou vol koffie maak.

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CasKru
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Thu Mar 27, 2008 9:38 am

As jy 'n inspuiting se punt toedruk en jy trek die inspuiting se armpie terug "stretch" jy die bietjie lug wat reeds daarin is so dan word jou inspuiting 'n vacuum reservoir.
Bennie, dit hang af hoe hard jy daai inspuiting toe druk. Want as jy te hard druk kom die naald aan die ander kant uit :shock:
Want as ek vir Newton reg verstaan is daar vir elke aksie 'n gelyke en teenoorgestelde reaksie?
Jy is 100% reg. Vir elke post wat ek oor die BB doen word dit ge-edit deur Bennie na Cheetah toe :
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Thu Mar 27, 2008 9:41 am

Dis alles net te veel vir my brein, ek is net 'n dom programmer wat nog nie koffie gehad het vanmore nie
Thys :shock: :shock: :shock: So jy het nog nie gewerk vandag nie. Het probably al 5 moerkoffies in so ek idle nou lekker
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Thu Mar 27, 2008 11:19 am

Ek het daai valve gesuig voor ek hom gekoop het, maar toe gee hulle hom sommer vir my verniet. Hys 100%. Ek sien ons Isuzu het n groot swart tenk, reken dis sy vacuum reservoir, gaan bietjie uitvind.

Julle sien as ons n Vacuum reservoir het, wat vacuum hou op die difflock systeem sal jy die locker gelock kan hou as die Hilux dalk stall op n obstacle, wat nogal baie met my gebeur, en ook die vacuum konstant hou maak nie saak wat die engine doen nie.

Dan as ons by Newton kan kom, daar is n reaksie vir elke aksie. As daar vacuum in die reservoir is, dan is daar pressure van buite wat wil in, totdat altwee, reservoir en atmosfeer dieselfde druk het.

Kyk bietjie die Hilux te koop in die Autotrader vir R50,000. Ek dink sy pens sal vang op n obstacle. :lol: :lol:
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1996 Hilux DC 4x4 2.4 Petrol standard, Ironman Suspension with extended shacles, Modified colt nudge-M bumper front with Warn Winch. Self-made bumper rear, Long range tank, 32" BF Muds, 15" x 8J Steel rims.

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Thu Mar 27, 2008 11:41 am

naasburger wrote:Ek het daai valve gesuig voor ek hom gekoop het, maar toe gee hulle hom sommer vir my verniet. Hys 100%. Ek sien ons Isuzu het n groot swart tenk, reken dis sy vacuum reservoir, gaan bietjie uitvind.

Julle sien as ons n Vacuum reservoir het, wat vacuum hou op die difflock systeem sal jy die locker gelock kan hou as die Hilux dalk stall op n obstacle, wat nogal baie met my gebeur, en ook die vacuum konstant hou maak nie saak wat die engine doen nie.

Dan as ons by Newton kan kom, daar is n reaksie vir elke aksie. As daar vacuum in die reservoir is, dan is daar pressure van buite wat wil in, totdat altwee, reservoir en atmosfeer dieselfde druk het.

Kyk bietjie die Hilux te koop in die Autotrader vir R50,000. Ek dink sy pens sal vang op n obstacle. :lol: :lol:
Naas as jou sisteem nie lek nie sal jy nie 'n resevoir nodig hê nie.

Nee wat ek dink daai lux sal okay wees hy moet miskien net 'n sel langer shackles by my koop ) so 1 meter lank) om sy gat so 400-500 mm te lig :shock: :shock:

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Thu Mar 27, 2008 12:15 pm

Ek dink ok so Bennie, miskien si 1.5m shacles

So wat dink jy is dan die probleem, miskien die diaphrame? Maar ek het aan hom ook gesuig en dit voel asof hy vacuum hou. Ek is amper lus en spend maar R1500 op n hele nuwe gearmax diff cover en kry klaar, ek het klaar n nuwe solenoid en vacuum pypie ingesit. Sal maar die valve try en dan kyk.
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Thu Mar 27, 2008 12:16 pm

Bennie. Ek dink jy is reg. As die sisteem nie 'n lek het nie gaan jy prbably nooit die reservoir nodig kry nie. Maaaar.... as die reservoir nou daar is nê, en daar is nie 'n lek in die sisteem nie... great... dan werk alles maar reservoir dien dan geen doel nie. As die reservoir daar is nê, en daar is 'n lek in die sisteem.... great.... dan werk alles want die reservoir hou die negatiewe druk nodig.

So m.a.w. 'n Fail-Safe Device :lol: :lol:
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Thu Mar 27, 2008 12:17 pm

Naas.... dit suig nê :twisted: :twisted:
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Thu Mar 27, 2008 12:27 pm

Ja ek raak nou moeg gesukkel. Koop ek nuwe cover, 5 jaar van nou af maak hy dieselfde. As die rerservoir kan help, great, dan hoef ons nie te worry nie.
1996 Hilux DC 4x4 2.4 Petrol standard, Ironman Suspension with extended shacles, Modified colt nudge-M bumper front with Warn Winch. Self-made bumper rear, Long range tank, 32" BF Muds, 15" x 8J Steel rims.

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Thu Mar 27, 2008 12:35 pm

Ek voel ook so half so. As ek nou R1000 kan betaal en weet my locker probleme is iets van die verlede en ek kan met vertroue 'n obsticle aanpak met die diffloc aan, sal ek dit met 'n plesier betaal :)
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Thu Mar 27, 2008 1:58 pm

Ek strip weer my cover af vandag en dan gaan ek hom skoonmaak, die diaphrame check en die kontak vir die liggie asook die locking mehanism self, om seker te maak hy engage in elke slot wat hy het. Ek het dalk n idee hys dalk bietjie gewear op sy tande dan wil hy nie altyd lekker ingaan nie, en die diaphrame kan hom nie vorseer nie.

Die ding gee my grys hare. Ek moet hom dalk net weer gearmax toe vat.

Ek het op my ou carb n klein non return valve gekry, hys oranje en swart, het hom ingesit met nuwe pypies van die manifold deur die valve na die solenoid, en dan na die plastic pypie wat agtertoe gaan. Hy lyk my is nog dieselfde.
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Thu Mar 27, 2008 2:03 pm

Onthou 'n reservoir gaan ook net die vacuum so lank kan hou. Try eers daai valve, dis dalk al wat jy nodig het. Ek is seker as jy bietjie rondsoek by plekke van vacuum goed verkoop kom jy dalk reg met net 'n diaphragm. Ek dink die kompleet dop is 'n geldmaak storie want daar word in Willem se manual die volledige vervanging prosedure bespreek so die ding kan gediens word as hy lek.

Al wat jy moet doen is om sy tong af te sny :wink:

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Thu Mar 27, 2008 2:17 pm

Ek se ook so

Ek het gearmax gevra maar hulle se die diaphrame word nie appart verkoop nie, gaan try die fabriek in PE/Durban in die hande kry.
1996 Hilux DC 4x4 2.4 Petrol standard, Ironman Suspension with extended shacles, Modified colt nudge-M bumper front with Warn Winch. Self-made bumper rear, Long range tank, 32" BF Muds, 15" x 8J Steel rims.

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Thu Mar 27, 2008 2:30 pm

Bennie. Mens kan daai diapram uithaal (6 boudtjie en 'n moertjie) en dan dit na enige'rubber' handelaar vat en kan jy vir jou diesefde tipe rubber koop die ou een se patroon aftrek op die stukkie rubber, uitknip, die gaatjies boor vir die boutjies en terug sit. baie maklik :)
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Thu Mar 27, 2008 4:10 pm

OK boys ek dink ek het die oorsaak van my probleem gevind.

Ek het die diff cover afgehaal en gecheck, my diaphrame is 100% en die vurk wat die locker lock beweeg 100% en so ver as wat hy kan. Toe check ek die sliding ring wat links en regs slide om die locker te engage en disengage. Hy is smooth en gaan in al die tande in 100%, toe wonder ek wat kan vout wees. Toe doen ek die volgende:

Ek connect die vacuum pypie op die cover terwyl hy af is, en start die bakkie. Sit toe die locker switch aan en hy suig hom toe mooi vas tot op maksimum. Toe druk ek met my duim die vurk sodat hy resistance het, en ek voel hy beweeg nie maklik nie. Toe vra ek ons werker, Eric, om terwyl ek met my duim druk die bakkie net vinnig 1 keer te ref. Daar is die probleem toe glo ek, sodra hy die petrol trap beweeg daai vurk sommer vanself omtrent halfpad terug en dan suig hy weer as jy die petrol los. Die probleem ek glo is deffinitief te min vacuum a.g.v. die trap van die petrol pedaal. Dit maak sin want my locker werk as ek idle by obstacles, maar as hy gly en trap daai petrol dan spring hy uit.

Ek het n none-return valve in maar weet nie of al my plekkies waar pypies geconnect is 100% seel nie. Ek glo n reservoir, maar n lekke vris een, sal die job doen.

Ek het ook gekyk, daai diaphrame materiaal lyk nie soos enige rubber nie, hy lyk redelik sterk maar glo ook mens sal 1 kan maak as jy die regte materiaal kry.

Raai hoeveel keer het ek 100% gebruik?? :lol:
Nou moet ek n reservoir opspoor voor die naweek, en more is al Vrydag.
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Thu Mar 27, 2008 4:22 pm

Ek het al so by myself gedink... myself.... VW's se water reservoir (ronde plastic container) lyk asof hy kan dubbelup as 'n reservoir vir ons doeleindes. Ek meen ons gaan nie so baie negatiewe druk create nie en hy behoort sit te kan weerstaan. :) En ek dink mens kan een van daai vir redelik goedkoop optel :)
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Thu Mar 27, 2008 5:36 pm

Ek het gebel mos, by daai Golf Worx in Germistone het hulle maar dis R650 stuk, dis bietjie rof. Ek soek nog op n ander plek. Het nou weer die diff toe geplak.

Die ander probleem wat ek het is dat as die diff lock ge-engage het, as ek ry dan flikker my liggie bietjie, het nou die kontak skoon gemaak en gestel soos daai specs gese het, voor die tyd getoets maar nogsteeds dieselfde ding.

Dit pla my bietjie, al doe goedtjies. Maar, solank die locker net werk is ek happy!!
1996 Hilux DC 4x4 2.4 Petrol standard, Ironman Suspension with extended shacles, Modified colt nudge-M bumper front with Warn Winch. Self-made bumper rear, Long range tank, 32" BF Muds, 15" x 8J Steel rims.

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Thu Mar 27, 2008 6:23 pm

Myne het eers so begin maak nadat ek hom oop gehad het. Ek dink daai draaitjie aan die binnekant van die cover earth net die LED en die Earth word voorsien deur die 'engaging ring' van die loc. En for some reason maak hy nie mooi kontak nie :(

Wel dit is my teorie.
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Thu Mar 27, 2008 7:43 pm

Naas

Dink net hoe satisfying dit gaan wees as jy daai difflock klaar ore aangesit het (en sy tong afgesny het) :mrgreen: :mrgreen: :mrgreen:

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Fri Mar 28, 2008 4:46 pm

Manne het ek nou gespook met daai diff om die liggie te kry dat hy bly brand en nie flikker nie. Hier is toe mos wat gebeur.

Ek strip toe weer die diff cover af nadat ek hom gister weer mooi vas gesilicone het en sy 9 boude vasgedraai het, gelukkig het ek nog nie olie ingehaad nie. Nadat ek hom gister terug gesit het, het my groen liggie sommer heeltemal afgegaan sodra die wiele begin draai, al is die locker nog ge-engage. Hyt erger geraak, toe dink ek ek kan hom nie so los nie ek moet die fout kry. Strip toe weer daai swart cover ook af. Toets toe met die meter, die swart cover maak moii kontak maar die cover maak nie kontak op die diff nie, so hy grond nie, maar snaaks genoeg net as die diff draai. Maar toe dink ek mos daai manne by gearmax het die diff gespry, so hy maak nie mooi kontak dat hy deurgaan chassis toe nie.

Oplossing:

Ek sit toe n draad, wat ek vasdraai met n ogie op een van die alli diff cover se 9 boude, tot direk op die chassis, so dit grond die diff cover direk. Nou bly daai groen liggie mooi aan as die locker ge-engage is. Moet nou net kyk of die locker werk. Het meeste van my pypies sommer geplak met super glue waar daar n las is, en seker gemaak daai one-way valve werk. Eks positief maar sal maar sien. Anders moet daai reservoir kom.


Tot later!! :lol: :lol:
1996 Hilux DC 4x4 2.4 Petrol standard, Ironman Suspension with extended shacles, Modified colt nudge-M bumper front with Warn Winch. Self-made bumper rear, Long range tank, 32" BF Muds, 15" x 8J Steel rims.

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Fri Mar 28, 2008 6:24 pm

Ek het toe vanmiddag die non-return valves gaan haal wat ek bestel het ens. Ek sal môre oggend gou aan die werk spring en die valve insit en kyk wat gaan vir wat. Sal jou op hoogte hou.
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Sat Mar 29, 2008 7:47 am

Cassie ek dink wat myne se probleem was, was hyt vacuum verloor by die pypies, nadat ek hulle almal geplak het, die by die solenoid ook, is hy nou reg. Het hom net vinnig gaan toets gister, maar hyt nie 1 keer uitgespring nie en ook nie geflikker nie. Ek dink hys reg.

Laat weet my maar.
1996 Hilux DC 4x4 2.4 Petrol standard, Ironman Suspension with extended shacles, Modified colt nudge-M bumper front with Warn Winch. Self-made bumper rear, Long range tank, 32" BF Muds, 15" x 8J Steel rims.

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Sat Mar 29, 2008 8:04 am

Bly om te hoor Naas

Is jou carb nou al gesort?

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Sat Mar 29, 2008 2:22 pm

Thanks Naas. Waarmee het jy geplak?
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Sat Mar 29, 2008 5:15 pm

Ek het sommer met gewone superglue.

Ek het mos daai ander 2nd hand carb gekoop, hy loop mooi, die bakkie vrek nie regtig meer op obstacles nie, maar die float loop nogsteeds leeg oornag, ek pomp hom maar as ek hom wil start.

Daii locker is nou 100%, het hom weer getoets en hys 100!! Eks verlig. :D :D
1996 Hilux DC 4x4 2.4 Petrol standard, Ironman Suspension with extended shacles, Modified colt nudge-M bumper front with Warn Winch. Self-made bumper rear, Long range tank, 32" BF Muds, 15" x 8J Steel rims.

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Sun Mar 30, 2008 8:13 pm

Ek is bietjie bang om myne te plak want as mens die ding moet service, wat dan? :shock:

Maar met daai non-return valve lyk hy ook nou 100% te wees. Kom ek stel dit so. Ek sluit die bakkie af en klim uit en kyk hoe 'n paar ouens die obsticles ry. As ek dan weer terug klim in die bakkie, dan is die diffloc nog gelock :)

Ek het darem geen probleme met my bakkie se karb nie. Het agter Bennie aangery vandag terwyl hy met Bulldog gery het en hy kon my nie weg ry nie :twisted: :twisted:
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Family_Dog
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Sun Mar 30, 2008 8:21 pm

Het agter Bennie aangery vandag terwyl hy met Bulldog gery het en hy kon my nie weg ry nie :twisted: :twisted:
Once again, Bulldog ventures into unknown territory, leading the way so that others may safely follow.... :mrgreen: :twisted:


Cas, what about some photos? You know I am dying to see them!!!


-F_D
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White Fang: 1999 2.7i DC Raider 4x4
Bull Dog: 1987 4Y-EFI 2.2 DC 4x4
Pra Dog: 1998 Prado VX 3.4
Hound Dog: 2000 2.7i SC 4x4


One Staffie, One Jack Russell, One Ring Neck Screecher, 17 Fish of questionable heritage


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CasKru
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Sun Mar 30, 2008 8:25 pm

Hey Eric. I must say Louis's guys did a beautlful job with that locker and compressor :) (i'll post some photos just now)

There is only one problem with the photo's I've got.... :shock: But you'll have to wait and see. :shock: :)
To God be the glory

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Family_Dog
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Sun Mar 30, 2008 8:33 pm

Image!!

Glad you got your Locker problem sorted out :)


-F_D
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White Fang: 1999 2.7i DC Raider 4x4
Bull Dog: 1987 4Y-EFI 2.2 DC 4x4
Pra Dog: 1998 Prado VX 3.4
Hound Dog: 2000 2.7i SC 4x4


One Staffie, One Jack Russell, One Ring Neck Screecher, 17 Fish of questionable heritage


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CasKru
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Sun Mar 30, 2008 9:08 pm

Okay. So we had an outing to Mahem to test my locker and Eric's locker and gas reading (die bakkies :))

Here is the timeline in pics :)
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While I was filling up I saw this Jeep and just had to share it with you

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Image
Eric, Louis's guys did an awesome job and they with the compressor as well
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Check this awesome van waiting for action :)
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The test equipment setup:
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And some action photos:
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I had a meeting with the panelbeater:
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And then there is a trator among us:
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Image :shock: :shock: :shock: :shock:
:shock: :shock: :shock:
To God be the glory

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Family_Dog
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Sun Mar 30, 2008 9:16 pm

Cas,

Great photos! That Jeep looks lekker too.

Regarding the "Traitor", I was as shocked as you were when I first saw them :mrgreen: The motor in the windscreen washer bottle is also a "Traitor" from the same stable, but I paid R75.00 for it from a Scrapyard, instead of R750.00 that the Dealers wanted! Exactly the same thing as the original, just a different badge on it.

Where did you smack your bakkie, going through the narrow walls on that climb?


-F_D
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White Fang: 1999 2.7i DC Raider 4x4
Bull Dog: 1987 4Y-EFI 2.2 DC 4x4
Pra Dog: 1998 Prado VX 3.4
Hound Dog: 2000 2.7i SC 4x4


One Staffie, One Jack Russell, One Ring Neck Screecher, 17 Fish of questionable heritage


Image

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CasKru
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Sun Mar 30, 2008 9:24 pm

Yip. Bennie was taking his time coming up the one side of the panelbeater and didn't want to wait for him :oops: So I took another route down wich is a little narrower but all would have been fine. What I didn't see is that there is a hugh step just as you start going down. My bakkie bottomed and slid a bit to the right
:evil: :evil: But nou ja. That stuff is going to happen eventually becauswe we play hard :twisted: :twisted:

At least it is now balanced out as the other side also has a dent :( (previous owner).
To God be the glory

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naasburger
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Sun Mar 30, 2008 9:54 pm

Waa het julle manne gaan ry? Lyk lekker!
Cassie daai superglue kom los met n bietjie force, so as ek moet sal ek hulle weer los kry. Was dit vir jou wat ek saterdag gesien het daar in CR Swart straat in Kempton, of het ek vir iemand anders gewaai?
1996 Hilux DC 4x4 2.4 Petrol standard, Ironman Suspension with extended shacles, Modified colt nudge-M bumper front with Warn Winch. Self-made bumper rear, Long range tank, 32" BF Muds, 15" x 8J Steel rims.

For Truck Tyres or Generators contact me at: 082 214 9699

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CasKru
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Mon Mar 31, 2008 5:26 am

Ons het so bietjie daar by Mahem gaan toets :)

Naas, ek dink daar is nou 'n ander Hilux bestuurder wat dink jy is baie vriendelik :) Ek was nie saterdag in daai omgewing nie so ek dink nie dit is vir my gewees vir wie jy gewaai het nie Image
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519franco
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Sat Jun 18, 2011 10:28 pm

naasburger wrote: So here is my question: The locker ingages fine, but as soon as allot of torque is applied (like spinning or pulling away quickly, or losing traction on an abstacle), the locker disengages and then re-engages as soon as I slow down. I checked the vacuum and its fine, even replaced the pipe from front to back (another R55). The guy at gearmax said it can be the daiphrame in the diff casing that locks the diff, if it losses vacuum there through a tiny leak, it may not pull the lever as well as it should to keep it locked under torque.:
iam still new to this but i think the cheapest easiest way to fix you problem is to install a non return valve before you tri connection and your brack booster.
because the brake booster is like a resivor and dosent loos vaccume once there is tourqe
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Sun Jun 19, 2011 11:23 am

519franco wrote:
naasburger wrote: So here is my question: The locker ingages fine, but as soon as allot of torque is applied (like spinning or pulling away quickly, or losing traction on an abstacle), the locker disengages and then re-engages as soon as I slow down. I checked the vacuum and its fine, even replaced the pipe from front to back (another R55). The guy at gearmax said it can be the daiphrame in the diff casing that locks the diff, if it losses vacuum there through a tiny leak, it may not pull the lever as well as it should to keep it locked under torque.:
iam still new to this but i think the cheapest easiest way to fix you problem is to install a non return valve before you tri connection and your brack booster.
because the brake booster is like a resivor and dosent loos vaccume once there is tourqe
Franco, I disagree .... reason, brakes are far more important than lockers and if there is a vacuum leak in the locker system it will drain the vacuum for the brakes. This can be especially hairy if you stall the motor on an incline, since you have to be able to momentarily lock the wheels to engage reverse gear for the stall start manoeuvre. Rather install a separate non return valve on the locker line before the solenoid servo, and if needs be you can install a small separate reservoir for the locker. ;-)
When your road comes to an end ...... you need a HILUX!.

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Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
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Tim86
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Thu Mar 29, 2018 9:47 am

Would anyone mind providing the specs/details/brand of the required non return valve for this discussion? Will be searching in the Cape Town area. Thanks!

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Mud Dog
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Thu Mar 29, 2018 12:08 pm

Are you having a similar problem Tim? Installing a valve is far from ideal, so don't do it if you don't have to. If there is a problem I would rather trace it and have it seen to. If it's the diaphragm at the diff, they are not expensive to replace and lines can easily be repaired / replaced as well. The solenoid valve might be a bit more pricey, but if that's the problem it would have to be replaced in any event. :winkx:
When your road comes to an end ...... you need a HILUX!.

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Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
It's not about waiting for storms to pass. It's about learning to dance in the rain.
And be yourself ..... everyone else is taken!

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Tim86
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Thu Mar 29, 2018 12:37 pm

Andy no problem as of yet - I have rebuilt the diff with the locker in (vehicle's running smooooth) but still need to connect it up. I have all the required parts for the connection except for the non return valve which I view as an added guarantee to make the locker work 100%. Will connect it all up and test before purchasing the valve if needed - just like to get my ducks in a row:), so my question remains.

I see you say installing the valve is far from ideal - are you referring to a case where the original vacuum/booster system is not working 100% or is there another reason why a non return valve is not a great idea? If placed correctly it should not affect the original system and the diff solenoid will release diff vacuum when switched off..

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Real Name: Andy

Thu Mar 29, 2018 3:33 pm

Just thinking about it, it's not the same as a pressure line. The valve is not going to achieve anything unless you have an extra vacuum reservoir for the locker. The locker line is small diameter and won't hold much vacuum. As long as the solenoid valve is good and there are no leaks you should be OK.
When your road comes to an end ...... you need a HILUX!.

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Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
It's not about waiting for storms to pass. It's about learning to dance in the rain.
And be yourself ..... everyone else is taken!

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Tim86
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Thu Mar 29, 2018 6:59 pm

Hard to think in reverse pressure haha;) I was trying to guard against the possible hiccup of reduced diff lock vacuum at high revs occurring such as other members on this forum have experienced. Although Andy, out of interest I see that Gearmax does implement a diff vacuum tube non return in one of their two setup diagrams (pdf somewhere on here) and call off the diff vacuum tube as the 'reservoir' which as you rightly say has minimal volume.

After checking my engine bay I see that my brake booster vacuum hose has no inline non return valve as I have seen on other vehicles nor is one mentioned in the manual, which got me thinking - does the motor, and possibly other types of motors, produce a maximum vacuum at certain revs which tapers off as the revs change? It would be understandable that this wouldn't affect normal operation as any braking takes place at idle (where vacuum appears strongest) as your foot has been removed from the juice and hence the booster may not have been 'calibrated' to accommodate changes in vacuum due to varying revs as the carburetor/advance may have, and our locker requires a bit more - or am I thinking too much..

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Tim86
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Thu Mar 29, 2018 7:03 pm

Overlooked the fact that you may be braking with the motor spinning faster due to vehicle momentum when in gear:/

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Mud Dog
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Real Name: Andy

Thu Mar 29, 2018 11:50 pm

It's possible that you're over thinking it. Also remember that, even at low revs, with the throttle closed the vacuum in the manifold increases because of the restriction of intake air past the throttle butterfly. I've never had a vacuum problem where the locker kicks out - I don't think it needs much to engage the fork.

I'll have a look on mine to see if there's a valve on the line ...... seem to recall that there might be, but not sure at this point. Will let you know once I've looked.
When your road comes to an end ...... you need a HILUX!.

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Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
It's not about waiting for storms to pass. It's about learning to dance in the rain.
And be yourself ..... everyone else is taken!

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Tim86
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Thu Apr 05, 2018 2:14 pm

I spy a little white something in the bottom left corner..
Screenshot_2018-03-31-12-33-00-360x640.png

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Mud Dog
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Thu Apr 05, 2018 4:54 pm

Indeed there is. What you're seeing there though is the "T" piece for the locker vacuum solenoid. However there is a non-return valve further back along the main vacuum from the manifold. That means that if the motor stalls or vacuum in the manifold is lost, then the brake booster doesn't loose it's vacuum immediately - if you have lockers activated, it should hold them in the locked position as well for a while (unless of course there is a leak on that line).

I have no idea what the part number is but as long as the nipple diameters are correct, then any non-return valve will do the trick.
When your road comes to an end ...... you need a HILUX!.

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Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
It's not about waiting for storms to pass. It's about learning to dance in the rain.
And be yourself ..... everyone else is taken!

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Mud Dog
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Vehicle: '90 SFA Hilux DC 4X4, Full OME, 110mm lift. Brospeed branch, 50mm ss freeflow exhaust. 30 x 9.5 Discoverer S/T's on Viper mags. L/R tank. (AWOL) '98 LTD 2.4 SFA, dual battery system. Dobinson suspension, LR tanks, 31" BF mud's.
Real Name: Andy

Thu Apr 05, 2018 5:10 pm

If you look at the last 3 engine pics in this thread .......
viewtopic.php?f=8&t=15977&p=487178&hili ... il#p487178
..... you will see the valve sitting above the rear end of the EFI plenum. :winkx:
When your road comes to an end ...... you need a HILUX!.

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Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
It's not about waiting for storms to pass. It's about learning to dance in the rain.
And be yourself ..... everyone else is taken!

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Tim86
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Thu Apr 05, 2018 7:04 pm

Ah I see. Mine doesn't appear to have that valve anywhere along the line which routes to underneath the carb. Did yours come with the valve or did you pop it in during the conversion?

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Mud Dog
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Real Name: Andy

Fri Apr 06, 2018 12:47 am

No, it was there from when I bought the vehicle (2nd hand) .... could be that it was fitted by a previous owner. :think:
When your road comes to an end ...... you need a HILUX!.

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Life is like a jar of Jalapeño peppers ... what you do today, might burn your ass tomorrow.
Don't take life too seriously ..... no-one gets out alive.
It's not about waiting for storms to pass. It's about learning to dance in the rain.
And be yourself ..... everyone else is taken!

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