Hi guys,
New guy here looking for some advice on where to go next in my diagnosis.
I have a '96 R33 GTS-T pretty much stock, it started running a bit rough a couple of months back but i only just got off my ass to investigate it.
So i checked my spark plugs, found cylinder 6 was black/ oily. I did a compression test, the first 5 cylinders showed 120psi, but the 6th cylinder showed only 20psi....... yes, 20. We didn't have a proper cylinder leakage tester but i had a connecter and plugged an air line into the spark plug bore with the engine at TDC and air came rushing out of the pod filter.
So obviously there is a problem with the inlet valve/s on cylinder 6?
I was hoping you guys could give me some insight into what the actual problem might be and how i go about confirming and rectifying the issue? And will i have to replace rings as well? Im not sure where to go from here and how much work im looking at. I was planning on selling the car soon so i dont want to spend too much time and money on it.
Your input would be appreciated,
Cheers, Sean.