[Healeys] BN1 rear springs zinc interleaves

[David Porter]

Did you all watch the video of the Healey rear suspension at work that
Magnus sent last week? You may argue that was a race car, but actually a
street car sees far more abuse from crappy roads and weather issues. So yes,
the inserts are important. IMHO.
dave

frogeye at porterscustom.com

Porter Customs   2909 Arno NE
Albuquerque, NM USA 87107
505-352-1378
1954 BN2  1959 AN5
Porter Custom Bicycles

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The zinc acts as an anti-corrosive medium to prevent rust on the sliding 
surfaces of the spring leaves. It works the same as a galvanized 
surface. I do not thing the intention was that it would act as a 
lubricant but the friction coefficient between steel and zinc could well 
be a bit lower than with steel on steel.
I feel the zinc is not really needed as long as you keep the spring 
leaves well lubricated and rust free, but that of course means very 
regular maintainance!!!! and we all service our grease nipples every few 
thousand miles don't we, so it should be no problem.
Kees Oudesluijs
NL