Wading through water - bow wave?
- Jaco Versfeld
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Wading through water - bow wave?
Hi there,
How do you wade through water?
At a recent 4x4 course, the instructor emphasized that you have to walk through the water first and determine the depth and any obstacles in the water. If the water level is low enough, at what speed do you drive through the water? Should the bow wave be a certain height? What gears should one use (low range, second)?
What other precautions should one take - except for the extended diff breathers?
Your suggestions are greatly appreciated,
Jaco
How do you wade through water?
At a recent 4x4 course, the instructor emphasized that you have to walk through the water first and determine the depth and any obstacles in the water. If the water level is low enough, at what speed do you drive through the water? Should the bow wave be a certain height? What gears should one use (low range, second)?
What other precautions should one take - except for the extended diff breathers?
Your suggestions are greatly appreciated,
Jaco
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Re: Wading through water - bow wave?
Hi Jaco,
EK dink dit is maar 'n geval van "practise makes perfect", dit kom met ervaring. Nog 'n paar goed om te onthou: mens kan die waaierband afhaal as jy rerig diep gaan, die waaier kan soos 'n bootskroef werk en die plastiese lemme kan dan vorentoe in die water trek en die verkoeler stukkend skaaf. Die waaier gooi ook water op die vonkproppe ens. Vir 'n kort rukkie hoef die waterpomp nie te loop nie. En natuurlik is 'n snorkel baie meer gerustellend sodat jy nie water in die engine insuig nie.
Ek's nie te seker van die spoed nie, so 30 km/h?
Cheers,
Chris
EK dink dit is maar 'n geval van "practise makes perfect", dit kom met ervaring. Nog 'n paar goed om te onthou: mens kan die waaierband afhaal as jy rerig diep gaan, die waaier kan soos 'n bootskroef werk en die plastiese lemme kan dan vorentoe in die water trek en die verkoeler stukkend skaaf. Die waaier gooi ook water op die vonkproppe ens. Vir 'n kort rukkie hoef die waterpomp nie te loop nie. En natuurlik is 'n snorkel baie meer gerustellend sodat jy nie water in die engine insuig nie.
Ek's nie te seker van die spoed nie, so 30 km/h?
Cheers,
Chris
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Re: Wading through water - bow wave?
Jaco. Moeilik om 'n spoed te gee. Dit hang maar van verskeie goed af. Al wat ek wel kan sê is dit moet 'n konstante spoed wees. Ek dink nie die bow wave moet 'n seker size wees nie maar jy wil hom die heeltyd op dieselfde plek hou, dan het jy die minste weerstand (my opinie)
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Re: Wading through water - bow wave?
Soos die manne se, practise make perfect maar ek wil ook se, hind sight is a perfect science. Moeni jou engine verloor en jou bakkie skade doen, net deur water te wil ry nie. Die slim ou soek gewoonlik 'n weg OM die water en spaar dus sodoende sy voertuig. Ek heg vir jou 'n foto aan van my bakkie - SWAMBO het bestuur - waar jy kan die hoogte (en voordeel) van 'n bow wave sien. Vergelyk dit met die hoogte agter die fender en jy sal sien, die bow wave skep 'n "vakuum "of laagte punt agter die neus, wat jou inlaat beskerm. Belangrik, is om nie die spoed te verander nie - nie vinniger of stadiger nie. Nou nie 'n boffin nie, maar eki het darem ook al 'n pel deur die Kglagadi soutpanne gehelp, deur net seker te maak hy kry nie sy bow-wave oor die bonnet nie.
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Re: Wading through water - bow wave?
Jy moet maar oefen. Ek dink nie iemand kan maklik vir jou se wat is die regte spoed en diepte nie, maar moenie worry nie, as jy te vinnig en te diep was gaan jy dit dadelik weet.
'n Mens kry maar die gevoel en dis dalk wys om die ander ouens eerste te laat gaan, dan kyk jy wat gebeur, hoe diep en hoe vinnig hulle dit doen.
'n Mens kry maar die gevoel en dis dalk wys om die ander ouens eerste te laat gaan, dan kyk jy wat gebeur, hoe diep en hoe vinnig hulle dit doen.
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Re: Wading through water - bow wave?
Alles wat gesê is... Onthou maar die skadu-netjie oor die grill (neus), dit help verder keer dat daar nie te veel water in die enjinruim inkom nie, en help ook met die vorm van die bow-wave. Speel maar en vat elke water-obstacle op sy eie meriete aan.
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Re: Wading through water - bow wave?
Ek sou dalk nie die een aanbeveel as jy 'n diesel ry met 'n air intake op die bonnet nie. Het met my eie oë gesien hoe 'n seednet veroorsaak dat die bowwave groter is en die water oor die bonnet stoot en in 'n diesel Surf se airintake in gaan en ... ek dink R20K later weer ry.Kaspaas wrote:Alles wat gesê is... Onthou maar die skadu-netjie oor die grill (neus), dit help verder keer dat daar nie te veel water in die enjinruim inkom nie, en help ook met die vorm van die bow-wave. Speel maar en vat elke water-obstacle op sy eie meriete aan.
So... seednet... ek dink nie so nie. As jy nie jou enginekap aan die agterkant lig nie dan sal daar 'n tipe van 'n lug bubble binne die engine kap wees vir 'n rukkie.
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Re: Wading through water - bow wave?
Okay granted, seednet = BAD idea.. Maar, ek hou vol, dit kan sonder 'n seednet ook gebeur, ons kom terug na "hanteer elke obstacle op sy eie meriete" , en met minimum geweld..CasKru wrote:Ek sou dalk nie die een aanbeveel as jy 'n diesel ry met 'n air intake op die bonnet nie. Het met my eie oë gesien hoe 'n seednet veroorsaak dat die bowwave groter is en die water oor die bonnet stoot en in 'n diesel Surf se airintake in gaan en ... ek dink R20K later weer ry.Kaspaas wrote:Alles wat gesê is... Onthou maar die skadu-netjie oor die grill (neus), dit help verder keer dat daar nie te veel water in die enjinruim inkom nie, en help ook met die vorm van die bow-wave. Speel maar en vat elke water-obstacle op sy eie meriete aan.
So... seednet... ek dink nie so nie. As jy nie jou enginekap aan die agterkant lig nie dan sal daar 'n tipe van 'n lug bubble binne die engine kap wees vir 'n rukkie.
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Re: Wading through water - bow wave?
Jaco.. in die foto kan jy min of meer die idee sien van 'n goeie bow wave. Die watervlak by die kajuit is onder die deure
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Re: Wading through water - bow wave?
Ek kan ongelukkig nie die credit vir daai een vat nie. Daai was my oom aan die stuur by wie ek die bakkie gekoop het :)
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Re: Wading through water - bow wave?
Goeie spoed is om so vinnig te ry soos jy sal loop teen 'n vinnige pas. As mens dit in spoed kan sit sal dit so+/-9-12km/h wees. Deur jaag deur vlak water kan baie suprises bring.
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Re: Wading through water - bow wave?
As jy die bo wave te vinnig stoot raak hy te groot en loop hy weg van jou vir 'n rukkie maar dan draai hy om en kom terug en dit wil jy nie he nie :o :o
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Re: Wading through water - bow wave?
Water kruising moets en moenies
1. Snorkel - want dit werk en lyk vrek cool op n lux
2. Diff en gearbox breathers wat tot in jou snorkel in verleng is
3. As jy baie dit gaan ry sny jou drombrieke agter se backplates oop sodat die goed kan effe skoner bly maar weet maar dan gaan jy allewig klippe en crap daarin kry , daarom convert na disks en geen pyne nie ( net duur )
4. Oefen dit so gereeld as wat jy kan om jou spoed en selfvertroue reg te kry ( te veel ouens gesien skrik as iets gebeur en die motor stol )
5. Seel sover jy kan alles op jou enjin wat elektries is met allerhande truuks wat jy kan dink , trust my ek tot ouens gesien wat n coke bottel oopsny en oor sy dissy sit en bleddie hel dit werk
en dan ouens di eheel belangrikste as jy sien daar klim ouens uit daai water gat uit met n duikbril en bottel DRAAI OM
1. Snorkel - want dit werk en lyk vrek cool op n lux
2. Diff en gearbox breathers wat tot in jou snorkel in verleng is
3. As jy baie dit gaan ry sny jou drombrieke agter se backplates oop sodat die goed kan effe skoner bly maar weet maar dan gaan jy allewig klippe en crap daarin kry , daarom convert na disks en geen pyne nie ( net duur )
4. Oefen dit so gereeld as wat jy kan om jou spoed en selfvertroue reg te kry ( te veel ouens gesien skrik as iets gebeur en die motor stol )
5. Seel sover jy kan alles op jou enjin wat elektries is met allerhande truuks wat jy kan dink , trust my ek tot ouens gesien wat n coke bottel oopsny en oor sy dissy sit en bleddie hel dit werk
en dan ouens di eheel belangrikste as jy sien daar klim ouens uit daai water gat uit met n duikbril en bottel DRAAI OM
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Re: Wading through water - bow wave?
Driko, dankie vir die goeie raad!!! Ek glo dit sal handig te pas kom vir die swemmers tussen ons!!...
Johan Marais
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Re: Wading through water - bow wave?
Ja nee jy wil nie van manslag aangekla word as jy hulle vrek ry nie né :!:Driko wrote: en dan ouens die heel belangrikste as jy sien daar klim ouens uit daai water gat uit met n duikbril en bottel DRAAI OM
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Re: Wading through water - bow wave?
Die manslag kan nog oor gedebateer word maar daai laaste hel was so impressed hy het my hilux gekoop en bo in afrika gaan verkoop aan n regerings instansie - dis nou glo hulle nuwe duikboot
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Re: Wading through water - bow wave?
Veral nie as jy met `n snorkel gaan swem soos sekere mense tussen ons nie..... :roll:BenHur wrote:Ja nee jy wil nie van manslag aangekla word as jy hulle vrek ry nie né :!:
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Re: Wading through water - bow wave?
Wat van HIERDIE snorkel swemmer??
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Re: Wading through water - bow wave?
Dit lyk maar baie ongemaklik en vrek koud!!! Dan swem ek eerder met my hilux in die modder.....
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Re: Wading through water - bow wave?
Gelukkig het hy niks oor wat in die sneeu kan vashaak nie
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Re: Wading through water - bow wave?
Chris mentioned something which I consider to be one of the important points, and that is the temporary removal of the fan belt, for exactly the reasons given. Radiators are not only expensive, but if damaged, you're a dead duck in the veld.
Also mentioned was the wise preference of avoiding the water wherever possible (metal is not water friendly, also, servicing the front knuckles aint funny), but if you have to wade regularly, it may be wise to fit an electric fan with a dash switch. Get a switch with a bright red LED in the toggle and wire it so that it illuminates when in the off position (you don't want to forget to switch it on again!). (An electric fan can also help a little with fuel economy.)
Also mentioned was the wise preference of avoiding the water wherever possible (metal is not water friendly, also, servicing the front knuckles aint funny), but if you have to wade regularly, it may be wise to fit an electric fan with a dash switch. Get a switch with a bright red LED in the toggle and wire it so that it illuminates when in the off position (you don't want to forget to switch it on again!). (An electric fan can also help a little with fuel economy.)
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Re: Wading through water - bow wave?
It is exactly for this reason why you should enter the water slowly... but surely the viscous fan will start slipping when it tries to turn in the water due to the increased resistance
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Re: Wading through water - bow wave?
Like Cassie is saying, slowly is the key word when entering water.CasKru wrote:It is exactly for this reason why you should enter the water slowly... but surely the viscous fan will start slipping when it tries to turn in the water due to the increased resistance
I have waded once my Hilux in a Muddy pool up to windscreen depth, although for only approx 1.5 vehicle lengths.....We did not take the belt off, and entered the water at crawling speed, approx 500 rpm Low 1st gear. The engine was not even really wet inside from the bit of water that it sprayed around.......
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Re: Wading through water - bow wave?
Water that is deeper than the high of my wheels, I always enter in 1L.
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Re: Wading through water - bow wave?
P.S.
Maybe out of my depth!
Maybe out of my depth!
When your road comes to an end ...... you need a HILUX!.
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!
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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Re: Wading through water - bow wave?
En mens kan diep in die moeilikheid inry as mens nie verigtig is nie ook
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Re: Wading through water - bow wave?
CasKru wrote:It is exactly for this reason why you should enter the water slowly... but surely the viscous fan will start slipping when it tries to turn in the water due to the increased resistance
I have seen a guy or two who was caught out by that. If the viscose is not working as it should it might start slipping too late.
If you just started the vehicle (after walking the water) the viscose does not always slip immediately, once at Berakah the one guy's Ford had a fan through the radiator due to a broken engine mount. The the angle the engine leaned over due to the drop of going into the water slowly in 1L had the blade run too close to the radiator and with zero tolerance the water sucked/bend the blades right through the radiator.
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Re: Wading through water - bow wave?
Ive seen it happen once. Not pretty.
That's why I'd prefer not to take a chance once the water height can invade the engine bay. The thing is, by my reasoning, as Cas said, one usually enters in low 1st, this tends to bring the revs up a little, even at a crawl. Idle is about 800 / 900 RPM so at 500 RPM there is a very real possibily of stalling the motor, especially with a rocky, uneven river bed. Then at what RPM will the visco overcome the water drag. I feel that I'd rather have an adequate throttle range. Also if one stalls and has to re-start, there may be a little rev spurt, enough to drive the fan blades forward.
And here I must admit that I am not an experienced wader, purely by choice, but I have had to cross a few serious streams.
That's why I'd prefer not to take a chance once the water height can invade the engine bay. The thing is, by my reasoning, as Cas said, one usually enters in low 1st, this tends to bring the revs up a little, even at a crawl. Idle is about 800 / 900 RPM so at 500 RPM there is a very real possibily of stalling the motor, especially with a rocky, uneven river bed. Then at what RPM will the visco overcome the water drag. I feel that I'd rather have an adequate throttle range. Also if one stalls and has to re-start, there may be a little rev spurt, enough to drive the fan blades forward.
And here I must admit that I am not an experienced wader, purely by choice, but I have had to cross a few serious streams.
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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!
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!
- CasKru
- Moderator
- Posts: 23956
- Joined: Tue Dec 04, 2007 11:52 am
- Town: Benoni
- Vehicle: '94 Hilux Raider 2.4i (22RE) DC 4x4
- Real Name: Cassie
- Club VHF Licence: B15
- Location: Rynfield
Re: Wading through water - bow wave?
Deepest water I went through.... actually came up to halve way up my windscreen (bow wave enoll).. and the reason... I did not walk it before I went in
To God be the glory
- Mud Dog
- Moderator
- Posts: 29857
- Joined: Tue Apr 29, 2008 2:18 am
- Town: East London
- 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
- Club VHF Licence: HC103
Re: Wading through water - bow wave?
Eish! What a nice clean up job of the cab interior after that! :)
When your road comes to an end ...... you need a HILUX!.
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!
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!
- CasKru
- Moderator
- Posts: 23956
- Joined: Tue Dec 04, 2007 11:52 am
- Town: Benoni
- Vehicle: '94 Hilux Raider 2.4i (22RE) DC 4x4
- Real Name: Cassie
- Club VHF Licence: B15
- Location: Rynfield
Re: Wading through water - bow wave?
Luckily there was a way out to the side and I made the turn... and lucky for the Bow wave :)
To God be the glory
- HiluxJunkie
- LR 4WD Rear Locker
- Posts: 378
- Joined: Tue Sep 25, 2007 9:06 am
- Town: Middelburg MP
- Vehicle: 2001 Hilux DC 4x4 2.7i Raider
- Real Name: Simon
- Club VHF Licence: N15
Re: Wading through water - bow wave?
What I do before a trip where I know there will be water crossings is to take some Q20 and spray the inside of the distrubutor as well as all the plug leads inside the rubber plugs fitting over the sparkplugs.
I then take a yellow rubber glove ( the ones housewifes use , you buy them from Pick and Pay or any supermarket ) and cut off the tips of the fingers. Then mark all plug leads so you know where it goes. Take the 5 leads through the fingers and the hand part over the distributor housing and put all back together again. I then use cable ties to tie around each lead where it comes out of the clove.
This works like a bom. Never had any water problem with water entering the distibutor even whith engine bay completely full of water.
I don't seal other electrics at all, because 12 VDC on the like of your fuse box and other wiring dont mind water and can not short out. I do seal spotlights and head lighs, because water going in there can cause bulbs to blow and leave the inside of the lense dirty as well.
Very importand to check rear drums when back at home. The amound of sand and mud I found in there easily knocks off hundreds of km of your brake discs.
I also take a grease gun and pump some grease into propshafts and stearing linkages to get water out.
Also checks diffs for water in oil when back at home.
I then take a yellow rubber glove ( the ones housewifes use , you buy them from Pick and Pay or any supermarket ) and cut off the tips of the fingers. Then mark all plug leads so you know where it goes. Take the 5 leads through the fingers and the hand part over the distributor housing and put all back together again. I then use cable ties to tie around each lead where it comes out of the clove.
This works like a bom. Never had any water problem with water entering the distibutor even whith engine bay completely full of water.
I don't seal other electrics at all, because 12 VDC on the like of your fuse box and other wiring dont mind water and can not short out. I do seal spotlights and head lighs, because water going in there can cause bulbs to blow and leave the inside of the lense dirty as well.
Very importand to check rear drums when back at home. The amound of sand and mud I found in there easily knocks off hundreds of km of your brake discs.
I also take a grease gun and pump some grease into propshafts and stearing linkages to get water out.
Also checks diffs for water in oil when back at home.
2001 2.7i DC 4x4 Raider. REAL MEN FOLLOW JESUS AND STILL HAVE FUN!
- frik
- Low Range 4WD
- Posts: 248
- Joined: Tue Jan 15, 2008 3:10 pm
- Town: Boksburg
- Vehicle: KZTE 3.0 4x4
- Real Name: Frik van Dyk
Re: Wading through water - bow wave?
http://www.youtube.com/watch?v=jf7oN-h6YnY
See if you guys can open this one it was taken 2 months back when I was in Nigeria.
Sorry guys it says this video is not yet processed but keep on trying. This is a standard 4x4 without any modifications except the horrible colours that the brewery painted it.
http://www.youtube.com/watch?v=Lrk6vsb7 ... re=related
Another link I found
See if you guys can open this one it was taken 2 months back when I was in Nigeria.
Sorry guys it says this video is not yet processed but keep on trying. This is a standard 4x4 without any modifications except the horrible colours that the brewery painted it.
http://www.youtube.com/watch?v=Lrk6vsb7 ... re=related
Another link I found
Everything keeps going right Toyota
- Mud Dog
- Moderator
- Posts: 29857
- Joined: Tue Apr 29, 2008 2:18 am
- Town: East London
- 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
- Club VHF Licence: HC103
Re: Wading through water - bow wave?
:wth: Most impressive!
When your road comes to an end ...... you need a HILUX!.
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!
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!