Excessive blue smoke

[Jalmarsson666]

My e30 is blowing out alot of blue smoke from the exhaust, I think it would be the oil control rings that are shot? Also smokes alot when engine brakeing. https://youtu.be/hIMrQctcW3s

[richardodn]

Maybe. It could also be the head. Worn valve guides and/or bad seals can allow oil into the cylinders. Look into doing both a compression and leakdown tests.

[Jalmarsson666]

Was thinking of that but it doesnt smoke at all on startup, thought valve seals would do that. And i'll have to do those checks for sure.

[H.J. 1981]

I would lean towards valve stem seals, i heard that they can fail or be problematic or what have you.

But typical checks are required before anything (compression and leak down).

[Jalmarsson666]

Cyl #3 seems to be dead https://youtu.be/Oj3WSBV0xn0
I am really considering just doing a m50 swap at this point

[superj]

your spark plugs will have lots of deposits on them if you are burning oil. that will tell you which cylinders are having an issue with oil

[Jalmarsson666]

Only 35psi in one of the cylinders, 170 in others, yikes

[superj]

Ruh roh