2,5 D4D vraag.

[jacques kotze]

Dag maats, Ek het n vraag wat moeilik is om te verduidelik. My bakkie het nou 291 000km op en het eergister in die ry so tussen 2400 en 3200 RPM met n ding begin asof jy die pedaal trap en los, trap en los. Asof dit n vuil filter kan wees en die enjin nie diesel kry nie en dan weer kry. Dit is nie n ruk gevoel soos of hy wil vrek nie, hy idle mooi en ref maklik tot op 4000 RPM.
Ek het die filter vervang en injector cleaner ingegooi maar hy doen steeds dieselfde.
Enige idee wat dit moontlik kan wees?

[JEEPIE]

kykl of jy
1. vuil filters het (air en oilie)
2. water in jou diesel
3. vuil injectors

[jacques kotze]

kykl of jy
1. vuil filters het (air en oilie)
2. water in jou diesel
3. vuil injectors

1. ek het hom n maand terug gediens en nou weer die diesel filter vervang.
2. Ek het nie water gesien nie, as dit water was sou hy nie oor die hele rev range so gemaak het nie?
3. Ek het injector cleaner ingegooi met geen verbetering nie

[boerbakkie]

kykl of jy
1. vuil filters het (air en oilie)
2. water in jou diesel
3. vuil injectors

1. ek het hom n maand terug gediens en nou weer die diesel filter vervang.
2. Ek het nie water gesien nie, as dit water was sou hy nie oor die hele rev range so gemaak het nie?
3. Ek het injector cleaner ingegooi met geen verbetering nie

Hi Jaques! Jy kry 'n injetor cleaner van Wurth wat water soort van oplos in jou hele sisteem en dan verbrand. Kyk of dit werk. Kyk by jou diesel pmp moet daar ook 'n siffie wees by een van die pype wat in gaan. kyk of dit nie vuil is nie.

[Thabogrobler]

Wat van 'n vuil MAF sensor?

[truckin]

Is jou Wa gechip? as jy haar start op n koue oggend "hunt" sy vir revs? (menede spring ha revs op en af vir n tydjie voordat sy reg idle?)

my 2.7 was gechip en het die selfde begin doen na n paar jaar... het toe die chip laat bypass en probleem is weg
andersins kan dit ook jou TPS (Trottle posision sensor) wees want dit was een van die goed wat die slimmes op my wa gecheck het, voordat ons agergekom het dis die chip..

hoop dit help
groete

[jacques kotze]

Ek het die fout gekry, ek sal n foto moet laai dat julle kan sien wat die fout was. Elkgeval, daar is n klien dun pypie wat op die turbo is, weet nie wat hy doen nie maar hy spring af in die ry, het hom terug gesit en als is reg. Dankie vir almal se insette.

[Mars]

Bly jy't hom uitgesorteer. Dit sal baie goed wees as jy 'n foto of twee kan opsit.

[jacques kotze]

Hierdie klein pypie gemerk met rooi het afgespring, weet nie waarvan nie, het hom terug gesit en so ent gery toe doen hy dit weer. Ek het toe cable ties op elke punt vasgemaak en nou is hy reg.

Weet enige iemand dalk wat is die pypie se doel?

[Darcor]

Hi Jacques, that pipe looks like it's connected to the turbo actuator, which controls the boost.
It works on "suction" through the exhaust side. At a certain turbo rpm there will be a predictable suction action through that pipe which will operate the actuator and in turn open a flap in the turbo housing acting like a "blow by" valve and thereby controlling the boost pressure.

Well spotted!!!

[jacques kotze]

Hi Jacques, that pipe looks like it's connected to the turbo actuator, which controls the boost.
It works on "suction" through the exhaust side. At a certain turbo rpm there will be a predictable suction action through that pipe which will operate the actuator and in turn open a flap in the turbo housing acting like a "blow by" valve and thereby controlling the boost pressure.

Well spotted!!!

Thanks Darren, what could be the reason for that pipe to pop out?

[louis fourie]

Isn't that the pipe that opens and closes your waste gate?

Sent from my GT-I9300 using Tapatalk 4 Beta

[Darcor]

Louis, waste gate is the term that eluded me...you quite correct.
Jacques, those pipes don't usually come off, but may have got some oil or lube on it making it slippery...your cable tie mod is perfect.
Maybe just check it from time to time to confirm there's no oil seepage from the turbo going up there. It should remain dry...ie free from oil!!
Regards.

[Traveler]

Darren is right, it might be jumping of because of oil in the turbo which will be a pre-warning of oil blow-by.

[jacques kotze]

Wat betekin n oil blow-by ?

[Darcor]

Hi Jacques, Oil blow-by is engine oil pumped through your turbo for bearing lube and cooling that's leaking past the turbo seal. Having said this it may also be a result of your Diesel fueling running too rich and now un-burnt diesel is fouling up the tube where the suction action occurs for actuator control. Maybe take your machine on a dyno and have the guys optimize it for you if it's chipped. Hope your turbo seal are ok. Not too expensive to re-new though. Just down time!!!

[jacques kotze]

Hi Jacques, Oil blow-by is engine oil pumped through your turbo for bearing lube and cooling that's leaking past the turbo seal. Having said this it may also be a result of your Diesel fueling running too rich and now un-burnt diesel is fouling up the tube where the suction action occurs for actuator control. Maybe take your machine on a dyno and have the guys optimize it for you if it's chipped. Hope your turbo seal are ok. Not too expensive to re-new though. Just down time!!!

There is some oil leaking out from the turbo then running down a little pipe. Attached is a link to a pic of the oil leaking from the turbo.
http://i1108.photobucket.com/albums/h41 ... e5aa8a.jpg" onclick="window.open(this.href);return false;

[Darcor]

Hi Jacques, my earlier post was inaccurate. the "pipe" that came loose that you are now securing with cable ties is connected to your "boost" side only...ie. the "cool" end or aluminium end...not exhaust...apologies for the error.
The only way oil can get to that pipe is via the turbo seal and not from the "turbine/exhaust" side.
The oil leak as depicted in the pic you uploaded is either the feed from the engine into the turbo or the drain back to the sump. This is minor!!! you can remove when cold and just reseal with a gasket or high heat silicone sealant.
If your turbo seal is leaking, it wont cause damage unless it completely blows. There are many turbos running around that leak. Those seals take a hammering!!! Many guys pull into a parking lot just coming off the highway and cut the engine. That tremendous heat from the Turbo transfers to the oil residue now stationery on the bearing and it cokes up becoming hard. the next swing of the motor and subsequent turbo spool grates the seal a bit...and so on. Oil in the actuator pipe will only cause harm if it completely blocks it. This will prevent your suction and hence no actuator action, no blow by and eventual over boosting. Is your bakkie still STD or does it have an intercooler and chip?

[jacques kotze]

Thanks for the info Darren, I always let the engine idle before switching of, sometimes I let it idle for 20 minutes. The bakkie is chipped at SAC on 140 000km's, it has done 297 000km's to date.

[Traveler]

Jacques, if I recall you have an intercooler on that Hilux?

Should consider having the intercooler cleaned. With blow by you'll end up with oil in the intercooler.

It is anyway not bad practice to have an intercooler sonic cleaned every 12 months.

[jacques kotze]

Jacques, if I recall you have an intercooler on that Hilux?

Should consider having the intercooler cleaned. With blow by you'll end up with oil in the intercooler.

It is anyway not bad practice to have an intercooler sonic cleaned every 12 months.

Thanks, where do I get it sonic cleaned?