Seeking you’re learned opinions.
My Series 3 E has had an ongoing leak from the rear mains, which I had hoped would get better over time, since I first purchased it a couple of years ago, but alas it has been steadily getting worse to the point where it is now streaming oil out after a spirited drive. The car has only done around 5,000km since a complete rebuild, but I can only conclude that the rear crank rope seal was not installed correctly by the PO.
I’ve now dropped the sump, whilst the engine is still in the car and removed the rear lower bearing cap to find the lower seal half to be almost smooth and appeared to almost be glazed. I can only assume that it was not sufficiently lubricated prior to install and may have been scorched. I’m guessing the top half of the seal wouldn’t look any better, but it’s removal would entail an engine out job which I was hoping to avoid.
All opinions received to date, suggest that the only way to do the job properly is to remove the engine, and I don’t disagree with that, but wanted to explore other avenues first.
So my question, would replacing the lower half seal only, likely to stem the oil leak by maybe even half or slow it to a few drips or is that just wishful thinking? Have read about the use of “Sneaky Pete” but don’t know of anyone that has had success using this method.
At any rate I figured it is worth a go to replace just the bottom half seal and with a bit of luck I may have some success in stemming the BBQ smoke emanating from the louvre’s when stopping at the lights, before I go down the path of an engine removal involving 100 plus hours of work to replace a $4 part.
Any other thoughts or suggestions would be greatfully received.