Quote:
Originally Posted by blueh88
Okay so...got it checked it over last week and the dude was very helpful near me. He narrowed it down to and confirmed there are two main leaks:
1. Turbo is passing quite a bit of oil - he took the clean air intake pipe off and ran it you can see the oil seeping past the turbine. There was some thrust movement in the shaft. I checked this a while ago and there wasn't any so it definitely has got worse.
2. Vacuum pump seal against the engine - MrSweet, you did mention this I know but I dismissed this as I had already changed all the seals. But once the mechanic pointed it out, it was obvious I hadn't sealed it properly. ALSO, at the time I changed the seals, I stupidly undid the head cover bolt just above the vac pump. I then couldn't tighten again which meant it must have sheared and I just left it. There is a possibility that this bolt also acts as a clamping force around the vac pump...hence again, not sealing properly. I did bring this up a while ago ( https://www.e90post.com/forums/showthread.php?t=1508997) but never got round to sorting it as I didn't think it was an issue.
It's booked in with this same guy to fix the head cover bolt by removing the complete cover, replacing broken bolt and re-assembling and to properly fix the vac pump again. Once this is done, I'll replace turbo or have some company get mine rebuilt/refurbished etc.
I'm happy there is progress! |
Ahh well if I replaced the seals mate I would have assumed the same, but Damn, if the bolt your talking about is the one I'm thinking about it's a Damn nightmare! I've came across a thread and the chap said he removed the two bolts above vacuum pump and it was a nightmare. I also have a some bookmarked M57n2 rebuild videos and again they take a blow torch to those same bolts as they must be prone to snapping but at least the chaps willing to do it for you.
I'm not sure where your from, but I take my BMW to BestTurbos based in Oldbury, they're specialists in BMW turbos and the guys there (Lucas and Martin) are awesome people. They'll take pictures and talk you through it all if your sceptical, they offer free diagnoses and 2 years warranty on parts and labour and of course as Rasa said this could be the perfect excuse for some Hybrids!
Glad your getting it sorted though mate, you don't have AA parts and garage cover do you? they put £500 towards any repairs and you can tell them where to drop it off as long as they're VAT registered, I got mine dropped to best turbo and cost me £220 after AA sent £500 cheque for a new turbo, seals, service, intercooler clean etc