Hello guys.
I had an issue with my mini r56 S 2008. It had rough idle and oil was leaking from turbo supply line. Well, i've done the job with all new parts according to many DIY videos/manuals new timing chain kit and new oil feed line. I was ready to finish all the stuff, when I noticed that crankshaft seal new one is leaking. Yes, without even trying to crank the engine. I simply lubricated new chain and it's guides with half a quart of oil when the head gasket was off, and after manual rotations to finish the timing job, I noticed that seal is leaking.
First I thought that it's a bad installation of a seal in term of depth I didn't install new pulley hub, so I tried to push the seal more without removing all the stuff. It wouldn't stop leaking. Then, I noticed that the pulley hub is actually NOT CENTERED relatively to seal housing... Well, I am a bit upset and confused. No manuals were talking about centering the hub with the seal housing..
The only thing I didn't do according to the manual - I've tightened crankshaft bolt without special tool. I was only relying on flywheel locker and applied a bit of counter-force to the vibration pulley when tightening.
I don't believe I could damage the crankshaft, so, what do you guys think could go wrong? Is there any techniques to put the pulley hub into correct position? I rotated the crankshaft externally and my pulley hub is definitely moving 1 or 2 mm up and down, which makes the seal pressed inequality around the hub, which lead to oil leak. And once again, all of this is just by rotating the engine manually. I was lucky enough well.. to notice the issue before I put my radiator back from maintenance positions.
Any help is highly appreciated.
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MINI Cooper R56 Turbocharged Engine Timing Chain Guides Replacement (2007-2011) | Pelican Parts DIY Maintenance Article