Originally Posted by
scoooby slayer
is your rad cap working and letting pressure release at 15 psi ?
have you removed spark plugs yet ? if water ingress caused misfire you need to isolate which cylinder it is. could be leaking headgasket, cracked head or block.
ive seen cracked wet liners do it a few times on big diesels, with the misfire and loads of pressure its likely water in a pot but needs to be diagnosed and isolated 100% before stripping it ime.
Do you mean header tank cap? The cap is newish it came with my bailey tank. The plugs look good as I mentioned before. I need to use head gasket tester really to determine if it's knackered. And then figure out why its fooked.