C20let misfiring,overfuelling & cutting out

[Corsa_LET]

Drove it fine yesterday, stopped, came back an hour later, started it and now this... Checked spark & all 4 are sparking so leads and dizzy are fine. Rocker gasket went last week so left the plugs out & turned it over, cleaned the plugs up cuz they were fouled up from overfuelling, put them back in & still the same :/ did a compression test & 1 2 & 4 are about 12psi & 3 was at 10psi, any ideas? Thanks

[vectra640]

12 & 10 psi is low IMO

[Corsa_LET]

Apologies for being a bellend, bar, not PSI

[Corsa_LET]

Think i may of found the problem..



Im no mechanic but this looks miles out! Belt seems a bit slack aswell, pretty sure its skipped a few teeth

[Cavalier-C20LET]

looks out even without seeing the bottom marks, hope that blue guu didnt go inside the rocker cover too much, bits will gather in the oil pickup strainer and eventually knacker your oil pump, which in turn could kill your engine

[vectra640]

I think that's a tad out to put it lightly, hope you haven't bent anything

[Corsa_LET]

Yea it was about 4 teeth out, re-did the timing & turned it over slightly & it jumped again, think the tensioner has gone or the belt is just very slack! New cambelt kit will be ordered tomorrow. Dont think its bent anything to be honest, and we only put a bead of sealant near the outer edge so none will be inside the rocker covers. Cheers