Thread: White smoke

howdy again folks lol. seriously i love this disco to bits but am getting tired of these issues i am unsure why stuff keeps happening and then im always having to defend my car. when really only major thing has been the head gasket. the rest are wear and tear and old hoses etc. and the trans was just a trans thing, pipes break. but anyways, picked it up from mechanic late yesterday after having it in for a check since the head gasket was done. turned out the timing was out still which is what the noise was related to. wish there was a proper proceedure for measurements on doing correct timing as even doing what RAVE says, it was still out!
the concern i have however is that returning home, heading up the expressway hill, it started billowing out as much white smoke as it did when the trans line let go. there was no noticable loss of power. and i had been accelerating hard here and there before the hill testing how it ran with no white smoke pouring out. it stopped a short time after reaching top of hill. and then testing it under hard acceleration again there was no white smoke. all trans oil was cleaned off my car after the trans hose was repaired. and there is a fuel leak (was wondering why i was suddenly leaking ?il' without any oil loss but the side of the motor was drenched LOL.) the fuel block valve is leaking badly and is high on list to fix. im not sure if it was just fuel that got somewhere and caused the white smoke. or if possibly even turbo related. as it started making yet another noise since the trans hose incident. only when turbo is spooling. it sounds sort of like air being sucked in. kind of like its mimicking a blow of valve just not so loud LOL. i am going to check the turbo area today. i did ask the mechanic to check this noise but im not sure if he did or not. i will be ringing him today to ask about the white smoke and ask if he did infact look into that noise as it maybe connected. I am not even sure if it is belt related as it got covered in trans fluid, and then cleaned thoroughly.
oh and i also now know why my car wont engage centre diff lock!! YAY!

lastly, has anyone just rebuild their fuel pressure regulator? if so how did it go?

thanks in advance

G'day Epic

This may help from just a quick google:

White smoke
MOST COMMON CAUSE:
INCORRECT IGNITION TIMING

As a general rule, the first cause of a diesel that's blowing white smoke will be related to the injector pump timing. Diesels rely heavily on high compression and correct injector pump timing to fire the combustion cycle. Any reduction in the cylinder pressures or fuel delivery will result in an incomplete combustion process. That white smoke you see from the exhaust is raw or completely unburnt fuel.

Or

White smoke occurs when raw diesel comes through the exhaust completely intact and unburned. Some causes of this include

• Faulty or damaged injectors
• Incorrect injection timing (could be a worn timing gear or damaged crankshaft keyway).
• Low cylinder compression (eg caused by leaking or broken valves, piston ring sticking, cylinder and/or ring wear, or cylinder glaze)

When white smoke occurs at cold start, and then disappears as the engine warms up, the most common causes are fouling deposits around piston rings and/or cylinder glazing. Use of our Flushing Oil Concentrate and FTC Decarbonizer address these respective problems.

Water entering combustion spaces will also create white smoke. Faulty head gaskets and cracked cylinder heads or blocks are a common cause of water entry, and are often to blame. Unfortunately, expensive mechanical repair is the only proper solution here.