lemur Posted 21 hours ago Report Share Posted 21 hours ago In theory; your piston wobbled because of either tightness in the wrist pin bearing or a jam sandwich in the piston rings. Quote Link to comment Share on other sites More sharing options...
jrsunt Posted 16 hours ago Report Share Posted 16 hours ago (edited) I’d be checking the internal diameter of the con rod small end. Even with the slightest play it will give a knocking noise. The piston doesn’t do much other than support the rings, which do all the hard work and wear considerably. If the con rod is slightly out of specification everything will wear as it won’t be runnng true and it will do the same again Edited 16 hours ago by jrsunt Quote Link to comment Share on other sites More sharing options...
bobb Posted 5 hours ago Author Report Share Posted 5 hours ago Lemur what do you mean with jam sandwich? Quote Link to comment Share on other sites More sharing options...
lemur Posted 1 hour ago Report Share Posted 1 hour ago 3 hours ago, bobb said: Lemur what do you mean with jam sandwich? When a piston ring pack becomes gummed up from bad fuel the rings stick in the piston grooves, then everything starts to go badly. Once you experience it you will know why I call it a jam sandwich. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.