Subject: RE: "Snap, Crackle and POP"
Author: plainjs
Date: Aug 9, 2004, 9:13 PM
Post ID: 1717317884
Thanks Charlie your idea just about explains it the way I experienced
it, the valve must have been impeded from closing all the way but not
enough to prevent detonation, otherwise it would have been real
noticably running on one cylinder only. The noise then was air being
sucked in and out of the silencer or carb depending on which valve, when
the "crap" (technical term)dislodged itself the valve slammed shut and
everything returned to normal.
Nick (from PRC) said he had a similar situation with his Chiang
(spelling?), he thought it might be that a tight valve stuck then
released once the cylinder head cooled down, but the affected cylinder
would not be firing if that were the case, no? It certainly didn't feel
as if it was only firing on one. When it cleared itself there was no
backfire, just a very noticable impact.
I guess I'll just have to run the thing harder in the future, hey it's a
tough job but someone has to do it!!!
..john
Charlie Mullendore wrote:
Hi John, You might have loosened a chunk of carbon in the combustion chamber and it hung a valve partially open for a bit. My old Gravely "T" head tractors do this ocassionally when used hard after "putt-around" work. Cheers, plainjs wrote:
Charlie http://members.tripod.com/charlesmullendore/index.htm |
To err is human, to "Eh" is Canadian.