Engine Oil Leaking from New Turbo
Replacing a Turbo on this jag due to the impeler shaft seizing. After getting the New turbo installed there is engine oil leaking from an open hole on top of the Turbo bearing housing with the engine running. the hole has threads and appears to be missing a plug of some sort. The turbo is customer supplied so technical support is difficult. now i remember why we don't install customer supplied parts. I thought maybe just finding a bolt and using a copper washer to seal it up. what do you guys think?
There is some sort of plug in original turbo. I removed it thinking I could swap it over to the new turbo but it doesn't look the same. It fell apart trying to remove it and appears to be some sort of pressure sealed plug. Its very strange. Kinda looks like the oil pressure pushes it up and holds it up to seal the hole. It broke getting it out so im not quite sure what it was supposed to look…
I'm not a Turbo expert, but when I worked at TRD, we used a centrifugal style supercharger on some applications. Those required normal oil pressure, tapped from the engine, to lubricate/cool the turbo shaft bearings in the Turbo housing. The Turbo body had an inlet for the pressure side, and an outlet for the drain side, which was normally drained/plumbed back to the engine oil pan. You'll need…
This turbo has 2 coolant banjo bolt fittings and 2 banjo bolt holes for engine oil with 1 drain tube on the bottom feeding back into the oil pan. 1 of the engine oil holes had a plug and a washer on both the original and the new turbo. The hole that oil is coming out of is very small, maybe 5-6mm. Where the other coolant and oil holes are 10-12mm that the banjo bolts fit in.
I don't see any plugs in this diagram. Just oil or coolant lines.
I am working on 2016 evoque 2.0 liter , think the same engine . No plug in this area . I would put a bolt not deeper than the threads and lock it.
Ebay.com/itm…heres an ebay add for the same turbo but it has a lot of pictures that show all the other holes and partially the hole that is open on the new. the circled part is where the hole is on the new turbo
… I bet you will think twice the next time a consumer wants to furnish their own parts… It is always better to not deviate from established policy (just say NO)… customer pays for second go round…right ? … Dan H. … Hobbs … South Texas …
Ask the customer how to proceed! It is still his part. Anything you do will pass ownership to you! The old (Not my monkey) comes to mind.
Some of the other cheap new turbos for the 2.0 EcoBoost engine applications show the same open thread hole, others show an allen head plug installed. There are so many manufacturers using this engine that I don't know if some applications use this hole and others don't. I'm with others let the customer provide the solution.
Pretty much all I know about turbos is what I learned in the online class taught by DN member during the lockdowns. He stated, than on some applications, if there is ANY restrictions in the RETURN line to the engine, oil will overflow from the turbo and there is really nothing wrong with the turbo. So if you didn't check that return line, that is my idea.
If the old one is plugged then I personally would get a brass pipe plug ang put it in. It looks like the old one is a steel plug with an allen key head maybe? I like to use brass - they are more forgiving.
After a stale mate with the company this turbo was purchased through we decided to go ahead and give a small bolt and a copper washer a try. after the first bolt being too long it appears this is supposed to have some sort of tapered plug in it. after letting engine run for about 10 minutes and then 10 minutes at 2000 rpm there is no more leak. very small bolt 5mm x .8 x ~5mm in case anyone was…