D5 (D5244T to 2005) turbo sucks oil out of engine???????

[jason wright]

had to replace the intercooler as had oil everywhere sadly when this was replaced the car smoked even at tickover, on walking to car this morning hoping it would have been fixed by the volvo faries (sadly not) I noticed lots of oil on floor by exhaust, checked oil level and found it very low less than 15 minutes running from when it was ok, what causes this urgent help PLEASE, upon investigating found rubber hose/pipe from turbo heading to intercooler was full of said oil, got a replacement turbo and was about to swap it out but figure if it can pressurise engine must be ok just not controling

[Bernard333]

Oil seals on turbo shaft failed ? To suck all your engine oil out the shaft and main bearing would have to be well knackered , have one that failed this way on a diesel Galaxy , the shaft was rattling about hitting the blades on the casing , it was blowing large clouds of white smoke and car not driveable , bits of turbo blade can get into the cylinders and wreck the engine . Once it gets so bad that engine oil is being blown through the air system the engine can run on its own oil and may not be possible to stop it revving out of control and eventually failing but seems not so common on a Volvo .

[v8 rick]

if its so bad jason do not run the engine mate or as mentioned above you could get a runaway were the engine will run to self destruction of its own engine oil .
its virtually impossible to stop the engine if this happens especially if its an auto , have it recovered to the garage if you arn`t doing the job yourself .

rick.

[jason wright]

Thanks for heads up, removed turbo today and yes shaft is slopping about like a chav up an alley, blades have been damaged, fitted 2nd hand one this evening and in process of cleaning as much oil out of pipework etc as possible, gutting thing is just fitted a new intercooler so got to remove it again grrrrrrr any suggestions on best way to flush or clean the intercooler or should I just leave it draining out, also although turbo sold as same year for same engine it has an extra diaphragm on it which seems to open a bypass flap is that right and is it ok to replace previous turbo which only had the one diaphragm operating on vacuum from engine etc

[Bernard333]

Sounds like your original turbo is a variable nozzle type and your replacement has a wastegate , take it back and get the correct turbo .

When the turbo was replaced on the Galaxy the intercooler was not cleaned out even though the turbo rotor blades were badly chewed up with chunks missing which may still be stuck in the intercooler pipes , this was chancing it and very bad practice but the engine and replacement turbo are still ok 18 months later.

[jason wright]

Thanks once again for advice sadly due to urgency and locality that was only turbo available to me, so will have to wait till pay day and source another, downside its only vehicle in household and no other means of transport for work at 5 in morning. Is it worth trying this turbo it looks identical but with the addition of the wastegate?

Jason (entusiastic but frustrated volvo driver/diy servicer)

[Bernard333]

I think the boost control range of your D5 engine system would probably be different to that of your wastegate type turbo so the ecu may not be able to control the vacuum through the boost solenoid , the vnt characteristic is different from the wastegate . I think you would find the wastegate trying to open at completely the wrong point thats if it would open at all which could be a problem , the ecu would probably switch straight into limp mode and give fault codes . Some turbos mainly on petrol cars use a pressure type diaphragm instead of vacuum to control the wastegate , are you sure which type is on your new turbo ? The other problem would be the bypass would need plumbing in as well . If you do go ahead and fit the new turbo it would be interesting to hear what happens , I like experimenting on things like this but its probably beyond what I would be prepared to risk myself .

[jason wright]

I would say its pressure controlled from output side of turbo, it is of the same year and model of D5 diesel. Have fitted it tonight when returning from 12 hour shift at work, refitted cleaned out pipes and removed the intercooler ready to clean during lunch break at work. hopefully will refit tomorow ready to try it on Mon as family plans on Sunday, all progress will be reported here and hopefully might help someone or maybe even a few, even if it does not work it saves someone else trying it, the ally section of pipework between intercooler and engine was very very clogged so guess when time allows need to check where else is badly clogged and rectify.

[jason wright]

Engine has started and runs, fairly smokey but think there is still alot of the oil in exhaust, been monitoring engine oil level which does not appear to be dropping, not taken of axle stands yet and tried to drive but it does rev without going into limp mode so might have a small ammount of luck coming my way, will update once it has been on the road

[Bernard333]

I take my hat off to you for even trying this and hope despite all the reasons it shouldnt work that it does . Just go easy on the acceleration , you want to make sure the wastegate will operate , I dont understand how it can work correctly but good luck with it anyway and look forward to reading more .

[jason wright]

well drove it of my front lawn (now a oily mess rather than grass) round to parking space it smoked heavy white smoke so on my reckoning it isnt providing any turbo boost maybe the wastegate opens to early ??? it did not go into limp mode anyway which is a small bonus as will probably have to use it to get to work thurs - sun nights hoping smoke dies of?? still getting lots of oil from exhaust, the intercooler and all induction pipes were cleaned out so guess this is still what remained in cat and exhaust and possibly inlet manifold, on tick over it seems fairly smoke free (maybe I am too optimistic) will try more options in morning, could egr be causing issues to complicate whats going on ??

[SonyVaio]

waiting with anticipation.

:star-wars-smiley-01

[jason wright]

Engine runs fine, still getting oil out of exhaust but then it did get 4+litres thrown down it so guess still some to get rid of, engine revs well into red not sure if it did before and rubber hose to inlet gets plenty of pressure on it, sadly when taken for several trial runs it seems to have no boost or not that I can feel anyway which seems strange when the inlet hose gets firm to touch, so this afternoon I have overdrawn the bank (charges to follow) and pushed card limit further still, to get like for like replacement which I pray will get here thursday in time to fit ready for start of my night shifts. Once again can people please cross fingers and everything else in the hope that this time its a complete sucess as at the moment it could still be other components playing up oh to know what I am doing

[SonyVaio]

I'm guessing the wastegate was not being operated thus not allowing the boost into the engine and the reason the pipe was keeping lots of pressure?

A like for like replacement should do the job though. I would where possible try and get any of the old excess oil out the system too.

:star-wars-smiley-01

[jason wright]

I cleared all pipes and the intercooler was taken of and flushed too, I am confident that it is still the old oil as current engine oil level is not dropping, the cat was left draining but left exhaust alone not sure of exact make up of cat and if it could/can store it in crevices etc, could this be causing problems?? all will be revealled soon and published here