Thread: detonated
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Old 02-07-2018, 11:52 AM
tooski tooski is offline
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Join Date: Oct 2010
Location: Thunder Bay, Ontario
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Default Run On

[QUOTE=hal101;5842376
but when i turned it off it ran on for about 3 or 4 sec
is that a sign of detonation that i cant hear or nothing to worried about?[/QUOTE]

If there is run on without spark (ignition turned off), I would call that detonation. (Just enough to keep the engine turning, maybe without hammering the bearings)
As Paul stated, if it was pre-ignition, the engine would cease to run.

When I had it I worried about it as the engine was more like bucking than running at 1-300 rpm. I don't know what the minimum rpm an oil pump requires to pump oil, but that was my concern. Did not have the presence of mind to look at oil pressure.

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