Well in theory any intake leak will affect all cylinders since it disturbs the amount of vacuum. Only a fuel injected engine would not notice very much. The only noise I hear now is when I turn it over by hand there is a loud SNAP every other rotation. If I dropped a valve seat that SNAP is probably the piston hitting the valve. More to come.
Craig N886MJ > On 12/12/2022 8:11 AM CST Flesner via KRnet <krnet@list.krnet.org> wrote: > > > On 12/11/2022 11:52 PM, Phillip Matheson via KRnet wrote: > > > > So today I was running the engine to test a new tach and something > > > broke. Everything was normal and WAM BAM the right side AFR went off > > > scale lean. Now engine barely runs. > > > > ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++ > While we are all "just guessing", lets start a lottery. I'm guessing it's > something in the valve train, other than a single valve spring. Why would > anything on a single cylinder make a 6 cylinder engine run that bad. Also, > "WAM, BAM" sounds like something metallic under considerable stress to me, > not an intake leak. Intake leaks don't usually happen instantaneously with a > loud noise. I'm guessing you have something bad broke. > > And the answer is...................................... > Larry Flesner > > > > -- KRnet mailing list KRnet@list.krnet.org > https://list.krnet.org/mailman/listinfo/krnet -- KRnet mailing list KRnet@list.krnet.org https://list.krnet.org/mailman/listinfo/krnet