Hi ihave a Jag 340 year 1990,when it running and the motor is cold we do not experience any problems but as soon its running hot or after a while we start having problem missed fire.The compression looks good.any suggestion Oversize Cylinders, rings, pistons, etc thanks Ben
Yes ,i would do that first,if that dosen,t solve the problem,ask again,i,m sure we could figure it out. make sure to pull crank out , send it out and make sure it.s in phase .if it is o.k.,, a good portng job will fix the rest of your problems,
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