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MMD > Archives > March 2006 > 2006.03.27 > 12Prev  Next


Valve Washers of Patent Leather
By Matthew Caulfield

I read with interest Gary Peterford's report on his experience with
patent leather valve facings, because I had purchased a couple of
PPCo's patent leather discs to see how they behaved in use.  The ones
I received were black patent leather, attractively (?) stippled with
green spatters.

The patent finish of the leather seemed to me to provide too much
"grab" onto the valve seat.  So I decided not to risk using them,
on the theory that a properly seating poppet needs to have some wiggle
room to find its optimum seal.  Also the slightly raised spatters were
of some concern.

Matthew Caulfield
Irondequoit, New York


(Message sent Mon 27 Mar 2006, 14:38:05 GMT, from time zone GMT-0500.)

Key Words in Subject:  Leather, Patent, Valve, Washers

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