It was not a cracked intake- it was the carb. now what?

Joe,
Your very correct regarding the Jammed Mechanical advance.
We have never seen it in cars, but in our coaches we see it on over 50% of
the coaches.

On Fri, Mar 25, 2022 at 6:18 PM John R. Lebetski
wrote:

> Smokey said 9 out of 10 carb problems are ignition.
> Jim is correct about faulty mufflers.
> And the power valve. BUT besides the power valve spring the GMC used, the
> GMC was the only Qjet made to use special triple tapered primary rods.
> This into from the Doug Roe Rochester carbs book.
> --
> John Lebetski
> Woodstock, IL
> 77 Eleganza II
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--
Jim Kanomata ASE
Applied/GMC, Newark,CA
jimk
http://www.gmcrvparts.com
1-800-752-7502