Tuning out knock

[Bob Valentine]

Took out a little of the extra fuel, left the timing reduced until I can
pull some plugs and have a look-see.   It doesn't "feel" like it needs more
timing  and due to the non-stock app I run as little timing as it needs.

Aluminium flecks on plugs are not a pretty thing.

-> Bob

At 11:12 PM 3/21/2001 -0800, you wrote:
>Bob,
>
>once you had the timing backed out back up a few hundred did you go back &
>put the timing back in down stream & take the fuel back out?
>
>BW
>
>-----Original Message-----
>From: owner-gmecm at diy-efi.org [mailto:owner-gmecm at diy-efi.org]On Behalf
>Of Bob Valentine
>Sent: Wednesday, March 21, 2001 10:47 PM
>To: gmecm at diy-efi.org
>Subject: Tuning out knock
>
>
>Just a note.   Spent some time trying to get rid of detonation in the
>2000rpm range at WOT, yanking spark and adding a good bit of PE fuel
>helped, but still got a little every now and then.
>
>Found some old notes about that "true detonation, once started, is hard to
>stop".  Exactly the problem I had.    Dropped a few points of timing out a
>few hundred RPM *before* I was detecting knock.
>
>Problem gone, now pulls hard thru the 2000-3000 rpm range.  Still need to
>do some plug checks to verify knock is REALLY gone.
>
>-> Bob Valentine
>-> bob at tecmark.com
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