John Shaffer is guessing a broken rocker arm.
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
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