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Need help with stubborn plug or alternate way to lock the flywheel.

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Topic starter

Hello! First off, thanks for helping.

Here's the scoop. My M54b25 (2004 BMW 325xi 5spd) was burning oil like crazy (60miles/qt), it was spitting out the back pipes and eventually I lost compression on one cylinder. Leak down test leads to an exhaust valve and possibly more but not likely. I need to remove the cams and trays in order to see whats going on. If i'm lucky I won't have to remove the head and its just a seal.

Everything was going smoothly until I tried removing the plug that allows room for the flywheel locking tool. It's more than stuck. Silicone spray or deep creep won't touch it and its decomposing little by little making it harder to even grab on to.

There isn't enough room for a drill. Do you have a trick to remove stubborn rubber/plastic plugs?

Also why do u have to lock the crank/flywheel? How does that disable the timing on the double over head cam vanos engine? Can't you just lock the crank from the front or mark the chain and sprocket with white paint? This stupid piece of rubber just put a complete halt to my project.

Thanks again Scotty and friends!

5 Answers
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  • Well you like it so the cams and chain can't move and you'll lose timng if the crankshaft moves at all
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Topic starter

Ok but since I can't lock it the BMW way (damn seized plug in the way), can I lock the crankshaft from the front w the 22mm wrench that I use to turn the engine over with?

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put the transmission in gear?

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Topic starter

I thought about that. Can I do this? Will it work?

it's worth a shot. Can't do any harm.

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Topic starter

Except un-time the engine if it doesn't work.

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