I have a 2008 sti grb. I have just rebuilt the engine. The engine originally had a misfire on cylinder 4, removed engine and stripped found broken ringland and a hole in number 2 & 4 pistons. Also exhaust valves were burnt on cylinder 4 so they were replaced with new valve seats and valve clearances made… also two 2nd hand pistons and new piston rings, bearings etc. (engine reconditioners put the heads together)
Any way put engine together and in, started up and there is misfire on idle cylinder 4…
compression test: all cylinders around 80psi thought this was quite low..
swapped coils and spark Plugs over
In the process of swapping fuel injectors over but now needing two seals the orange ones on top of the injector cant my find these anywhere.. does anybody know where to buy these from?
I doubt it’s a fuel injector problem but going through process of elimination.
I’m thinking it has something to do with the head work done on that cylinder. Not keen to pull the engine out again 😅
Is there anything else I could check? Will
do a leak down test after finding a injector seal
Does anybody know where I can get the orange injector seals from?