After winter storage this year, my B started making a "God awful squeal". My
belt tension felt right and the belt was fairly new, so I started worrying
about bearings and such. I mentioned this to a shadetree buddy of mine, and
he asked if the crankshaft pulley was rusty. In fact the pulley was very
rusty. I thought what the heck, I'll try spraying something on the
belt/pulley. I grabbed an aerosol can of Boeshield T-9 (sort of waxol in a
spray can) and gave the belt a squirt with the engine running. The squeal
immediately went away and hasn't returned in several thousand miles of
driving. Maybe belt dressing would have been better to use, but I can't
argue with success.
I used to think squealing was caused by a slipping belt, but I don't see how
the dry, tight belt on a dry, rusty pulley could have possibly been
slipping. (Come to think of it, rusty brake discs don't stop very well.
Maybe rust does cause slipping.) Anyway, my buddy was right on about the
rust.
Bob Donahue (Still stuck in the '50s)
Email - bobmgtd@insightbb.com
52 MGTD - NEMGTR #11470
71 MGB - NAMGBR #7-3336
.
----- Original Message -----
From: <mghirsch@netzero.com>
To: <mgs@autox.team.net>
Sent: Tuesday, October 01, 2002 10:45 AM
Subject: RE: God Awful squeal
> You first have to find out for sure where the squeal is coming from.
>
> An inch slack in the belt ios too much, get it down to about 1/2 inch.
>
> Still squealing?
>
> If squeals with the belt on, use a stethescope if you have one. If not,
take a long screwdrive, place on end on the alterantor, and listen to the
other. Do the same with the water pump. It should be apparent where the
squeal is coming from.
>
> No help? take the belt off. run the engine (briefly) and listen. No
squeal , good, but you missed something before. Squeal, bad, eninge
problem.
>
> Maynard
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