P80 engine crankshaft diagram - where are pistons relative to the timing mark?

Post by **abscate** » 07 Jan 2019, 11:48

Im trying to free up a white block NA which has a stuck piston number 5.

Does anyone have an image or diagram of which piston is where during the crank pulley cycle?

Im hoping the piston is stuck mid stroke so I have a better shot of popping it free without breaking a ring.

Post by **ZionXIX** » 07 Jan 2019, 12:03

Would it be helpful to measure the depth of each piston via the spark plug holes?

Post by **abscate** » 07 Jan 2019, 12:04

Post by **jimmy57** » 07 Jan 2019, 15:17

I like thin oil poured in cylinder for freeing stuck piston. Do you know if it had coolant in that cylinder or what?

Post by **abscate** » 07 Jan 2019, 15:20

No coolant use reported by PO and oil clean and non-milky. Piston not looking any cleaner than others

All signs point to no coolant in cylinder'

Im using a ATF acetone MMO mix in cylinder 5

I can't believe I didn't think to use Pooh sticks to measure piston position - apparently I am a Bear of Little Brain

Number 5 is stuck mid stroke - SWEET!!

Post by **abscate** » 27 Jun 2020, 18:48

This engine freed up after three days and is now happily powering around Abby in her black S70, named Evita