dubbleRR
Well-Known Member
- Posts
- 1,018
- Location
- highlands of Scotland
Might be a turbo pipe .burst or popped off ......
Lots and lots of white smoke
- Thread starter Louis1134
- Start date
This site contains affiliate links for which LandyZone may be compensated if you make a purchase.
It's very possible the oil that was dumped into the exhaust system clogged it up, allowing idle, but when the pressure was on it could simply have blown the back box apart. Seen that once after a similar episode. The oil prevented the exhaust escaping and the pressure built until the box split at the seams.
But as suggested, it could be an intercooler pipe or the cooler itself. Should be easy to spot and hole in the exhaust or the cooler looking like a balloon...
But as suggested, it could be an intercooler pipe or the cooler itself. Should be easy to spot and hole in the exhaust or the cooler looking like a balloon...
zzr1200
Well-Known Member
- Posts
- 1,862
- Location
- Chesterfield, Derbyshire
Many years ago when I was an apprentice we had a lorry that would produce clouds of white smoke under acceleration.
Traced the problem to an air hose before the turbo, that had de-laminated allowing it to internally collapse when the engine was loaded up, the internal surface collapsed and acted as a valve causing lack of air supply, but the external surface didn't show any signs of a problem.
Check the suction side hoses (before the turbo), run the engine (with smoke) then remove them one by one and see if the smoke clears...
Traced the problem to an air hose before the turbo, that had de-laminated allowing it to internally collapse when the engine was loaded up, the internal surface collapsed and acted as a valve causing lack of air supply, but the external surface didn't show any signs of a problem.
Check the suction side hoses (before the turbo), run the engine (with smoke) then remove them one by one and see if the smoke clears...
- Posts
- 19,297
- Location
- Buckinghamshire, UK. ('95 DT)
If he puts it under load with no turbo pipes attached it'll be black smoke coming out!
zzr1200
Well-Known Member
- Posts
- 1,862
- Location
- Chesterfield, Derbyshire
If a hose (before the turbo) is being sucked closed by the turbo causing the white smoke when it is removed the restriction will be removed. If a hose after the turbo is damaged it will be a pressure loss, hose has come off or split.
Start the engine and induce white smoke (if required) then remove hoses between the air filter and the turbo to see if the smoke clears...
Last edited:
dubbleRR
Well-Known Member
- Posts
- 1,018
- Location
- highlands of Scotland
What color is the new smoke.black or white .....
Louis1134
Member
- Posts
- 12
- Location
- Oxfordshire
I checked through the system and no splits and pipe work all togeather and the colour of the smoke is still white, I'm going to take The intercooler off next a check that over.
I removed the turbo again and every thing looked okay no damages anywhere.
Also I think I have knocked a connection out some where I have found a wire dangling about behind the drivers head light, any one have any ideas?
I removed the turbo again and every thing looked okay no damages anywhere.
Also I think I have knocked a connection out some where I have found a wire dangling about behind the drivers head light, any one have any ideas?
tomcat59alan
Well-Known Member
- Posts
- 18,611
- Location
- wirral and triquivijate
Did you prime the turbo oil feed before starting?
Louis1134
Member
- Posts
- 12
- Location
- Oxfordshire
Yeah primed up the turbo befor fitting, had a bit of success last night found a split in a pipe How I didn't see it I don't know.
I swapped the pipe work over and fired it up and we were rocking only issue I have it's got a really high pitch whistle at about 2.5k revs to about 3.5k revs
How much pressure should the turbo produce I feel like mine is like over boosting?
I swapped the pipe work over and fired it up and we were rocking only issue I have it's got a really high pitch whistle at about 2.5k revs to about 3.5k revs
How much pressure should the turbo produce I feel like mine is like over boosting?
ifloochies
Well-Known Member
- Posts
- 866
May be wrong, but whistling usually indicates a leak of boost
Louis1134
Member
- Posts
- 12
- Location
- Oxfordshire
Yeah going to check all the joints later
Do the Range Rovers have a dump valve ? There seems a huge amount or pressure through the turbo pipes ?
Do the Range Rovers have a dump valve ? There seems a huge amount or pressure through the turbo pipes ?
brianp38dse
Well-Known Member
- Posts
- 20,065
- Location
- heathrow
No dump valve needed on diesels .
dubbleRR
Well-Known Member
- Posts
- 1,018
- Location
- highlands of Scotland
Wast gate on turbos can stick .if its second hand turbo ...
Louis1134
Member
- Posts
- 12
- Location
- Oxfordshire
It's the original turbo just reconditioned but the waste gate is new, any way to test it ?
dubbleRR
Well-Known Member
- Posts
- 1,018
- Location
- highlands of Scotland
On older turbos the waste gate was moved by manifold pressure .On modern ones its electrical and the motor gearbox fails and throws a fault ,ie limp mode ...If your over boosting it might throw a fault ,but not if its leaking boost pressure ,which might have been the prob at the beginning .
Louis1134
Member
- Posts
- 12
- Location
- Oxfordshire
A little update on my progress so far,
I'm sure I have a leak on the boost side, if I squeeze the pipe just before the egr valve it starts to whistle, I'm unsure if it's the pipe leaking or the egr mounting to the manifold leaking yet going to look tomorrow.
I have also noticed that the crank case breather is not sealing properly as well I bought the updated version but I'm guessing the new seals aren't holding quite right.
I went for a small drive earlier to test it out And driving nice and easy staying around the 2k rev it's was all going smooth but as soon as I put my foot down I started chucking out white blue'ish smoke, would my leaks in the system cause that??
I'm sure I have a leak on the boost side, if I squeeze the pipe just before the egr valve it starts to whistle, I'm unsure if it's the pipe leaking or the egr mounting to the manifold leaking yet going to look tomorrow.
I have also noticed that the crank case breather is not sealing properly as well I bought the updated version but I'm guessing the new seals aren't holding quite right.
I went for a small drive earlier to test it out And driving nice and easy staying around the 2k rev it's was all going smooth but as soon as I put my foot down I started chucking out white blue'ish smoke, would my leaks in the system cause that??
