Turbo oil leak

[panic-mechanic]

What make is it. If it is forged you just need to check and measur bore to piston clearance and check with the manufacturer what their recommended clearance is.

[marius1968]

Panic manage to find a good second oem piston from the engineer that did my cylinder head so i'll be fitting oem again. Thanks someone else might have a need for the forged ones

[marius1968]

Hi guys engine completely rebuild start the bus this morning still dripping oil out of exhaust looks like I have to take turbo back to Turbo Clinic to check seals

[vwpro]

Is it a after market turbo? If so put a 1.5mm oil restrictor on the oil feed line,
Make sure oil drain is open and big enough say not less
than 12mm ID.
Sump compression can cause the oil pushing pass the seal as it kind of block oil draining via drain pipe, get this on many cars with faulty pcv's specially the tdi's

[panic-mechanic]

after the events you had give it a day or two before starting to strip more stuff. There is most likely oil left from all that.

[marius1968]

Vw pro it's oem turbo. Panic can take the exhaust off and idle to see if any oil still comes out of turbo

[marius1968]

How can I check sump compression?

[panic-mechanic]

Vw pro it's oem turbo. Panic can take the exhaust off and idle to see if any oil still comes out of turbo

Yes can remove the downpipe on the turbo.
just about all diesels will have some sump compresion and just rebuilt a bit more a the rings are not quite that much sealing yet.

[Ashveer03]

Remove the downpipe and check if the turbo is "wet", im sure u must have cleaned up whatever oil was in there from the turbo/engine rebuild. If theres no oil in there then ur exhaust silencer most likely has oil in it (if it does, remove exhaust and try draining out the oil)

Does the van give off alot of blue smoke?

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[marius1968]

Looks for light grey white Ashveer

[Ashveer03]

Are u sure that its oil and not diesel?
Oil smoke is generally a bluish-grey (more blue though)
On the other hand, improperly "burnt" diesel is black, and "unburnt"/raw diesel is white.

Did u replace ur injector seals when u reconditioned the cylinder head? Im sure they have removed the injectors to get the cylinder head overhauled in the first place..

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[marius1968]

Had the Van idle with downpipe off tonight definitely oil from turbo.

[marius1968]

Van idle oil slow seeping when I press acceleration oil blast allover

[Ashveer03]

Very poor workmanship from that turbo repair shop..

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[marius1968]

Will take it back today

[marius1968]

Took the Turbo back to the repairer today holding thumbs

[GremlinCCS]

My previous motors turbo were at turbo clinic 3 times. Well they had the complete car as the previous owner swopped turbo with them just before I bought it,so under warranty it returned the first time as turbo lasted 10k km, second time after 20k km, and third time again after 20k km. The 4th time I decided screw them I'll do it myself, didn't trust them anymore.

Yes they repaired it everytime but it cost me a few thousands to get the car to them everytime, once broke just outside Harrysmith. Towing back so they can fix it once again cost me almost as much as a new turbo.

In the end that motors problem were found, oil pump were gone... As turbo specialist should they have picked it up?

But anyways, good luck. Hope you get it sorted.

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[marius1968]

Got turbo back today will put it in tonight

[marius1968]

I don't know what more got the turbo back today fit it straight away moerse noise. A's it reach operating temperature oil start to drip again. Turbo guy said I must bring the Van to him so that he can check might have to do that

[panic-mechanic]

I think change your turbo guy.

[GremlinCCS]

With all my struggle with my turbo, all the research I done I only got to one reason why a good turbo will leak oil.

When your oil pressure are to high for the oil draining system. Couldn't find any indication of what's to high tho but need to check the oil drainage pipe and make sure it's not blocked.

If that's all fine it's the turbo.

What's concerning are you said a noise when you started. With that I'm sure it's the turbo.

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[marius1968]

Hi did a oil pressure test tonight start up cold 3.3 bars warm 1.2 bars. Does that sounds within spec? Gremlin yes new drain pipe fitted. Took the feed pipe of put a cut of 1/4 2 litre bottle under pipe to catch oil start the Van by the time I get to the front to check oil was already running out underneath the Van fast
I'm not sure if that's normal

[marius1968]

Will do a compression test tomorrow.

[Ashveer03]

Im not sure about the spec oil pressure, those numbers seem ok though will let some1 more experienced comment on that..

But thats the correct way the turbo/drain is working.

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[panic-mechanic]

Sorry what? You took the turbo oil feed off and started the engine? Uhm turbo screwed right there.