Compass trouble

On Apr 12, 10:07 am, Road Dog wrote:
Stealth Pilot wrote:

the problem doesnt seem to be the compass but some stray magnetism in
the aircraft.

So he claims but what would this be that wasn't there
when the plane left the factory ? Without any new
equipment, how could it get so bad that it throws the
compass off more than 10 degrees through mu shield ?

In any case, thanks for the reply.

Pipers sometimes suffer from magnetized engine mounts. I think
it might have to do with the alternator ground cable terminals getting
corroded so that the alternator ground current runs throught the mount
tubing instead, magnetizing it and screwing up the compass.

Dan