Maybe an oil analysis from blackstone labs would help identify the type of lower end damage done here?
The bearings would leech off nickel. Fragments would indicate other issues, as well.
Major Contributor
Maybe an oil analysis from blackstone labs would help identify the type of lower end damage done here?
The bearings would leech off nickel. Fragments would indicate other issues, as well.
erased due to slander
Grand Master
Oil analysis is good but...
The bearings would also give off lead as well. The synthetic oils have so many additives that it is hard to read those oil analysis anymore!! The last one from my M30 left me believing the whole engine was breaking apart!!!
When I took my engine apart I found a nice four-corner score on the cylinder walls and scuffed up pistons skirts. It was the result of piston slap and it will be interesting to see if I can keep the cylinders and pistons without boring the block out and replacing pistons as that is $$$$$.
Originally Posted by Martin in Bellevue
Major Contributor
Yep, it may be the time to investigate cylinder wear & possibly step up to 3.7l pistons.
Are new lower bearings & caps available directly from the dealer?
erased due to slander
Grand Master
Yup...
I have a crank set and a rod set for my rebuild...Unfortunately the dealer sells them individually and they add up FAST!
The caps have to come from germany and cause quite the wait.
Major Contributor
BMW really bends ya over the fender with those metric prices on motor parts.
erased due to slander
Posting Permissions
Reply With Quote