Re: [Amc-list] undetectable pinging?

[adh@xxxxxxxxxxxxxxxxx (Sandwich Maker)]

" From: Tom Jennings <tomj@xxxxxxx>
" 
" I'm still having a blast driving this Twin Stick American! It's
" fun as hell. It's actually pretty quick and nimble in traffic,
" it tosses around OK, though I imagine it looks pretty funny
" tilting and leaning all over the place with no anti-roll bar!
" 
" I'm having a very subtle funny behavior from the motor. It's
" nothing mechanical, or broken. I think it's ignition timing
" related.
" 
" It's very subtle; I drive the same route (hell, same lane
" changes!)  so I notice small stuff. Sometimes it takes a bit
" more throttle foot to maintain speed, and the temp gauge reads
" higher than normal; it's all well within normal operation though;
" it's almost not noticable.
" 
" I suspect it's silent pinging, light detonation or pre-detonation
" that's killing a few HP (very few) and the heat's staying in
" the head. On a 35 mi. (each way) trip today it did this; tank
" was nearly empty, and I filled up at an Arco station I've never
" been to.
" 
" 5 miles later, the temp guage ran lower, and it made 65mph
" cruise with less throttle. It's jsut barely less, and I think
" most people wouldn't notice, hell, I might not notice if the
" car had more bulk HP to begin with!
" 
" Question: if you can't HEAR it ping, is there any other way
" to detect pinging? The plugs are *perfect*. It's not that
" much detonation.

i think you might have is a sticky ign advance.  retarded ign will
make the engine run hotter and with less power [the energy's going out
the tailpipe].
________________________________________________________________________
Andrew Hay                                  the genius nature
internet rambler                            is to see what all have seen
adh@xxxxxxxxxxxxxxxxx                       and think what none thought
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