John Slade <sladerj@bellsouth.net> asked:
> Is it ok to sandblast plugs to clean them?
Yes, but. Depending on the environment they will have
to operate in, their service life after sandblasting will
be shorter to a lot shorter. Sandblasting puts tiny pits
in the porcelain, which become little pockets where conductive material (carbon) can lodge; then, instead of
the spark jumping the gap, it just runs down the side of
the insulator.
The higher the compression, the quicker the plug becomes
unserviceable.
Dale R.
COZY MkIV #1254
> No coolant
flow whatsoever, nada, zip
Can't help, Dave, but I
can empathize.
Last time I ran the engine it ran pretty well. Since
then I've cleaned the fuel filters and changed the oil.
I went to start it today to get some engine tuning
done and see how everything works with the cowl on.
Nada, zip. She fired maybe twice in more than a minute
of cranking. Switching to computer B, trying different mixture settings etc.
etc. didnt help. I took the cowl off & removed the plugs. Black and
wet. I sandblasted my spare set and put them in. Same results.
Any ideas?
Is it ok to sandblast plugs to clean
them?
John
|