Two on Tour
LIFE MEMBER
- Sep 16, 2016
- 11,486
- 65,051
- Funster No
- 45,145
- MH
- Elddis Autoquest 175
- Exp
- Since 2010
Way back in the sixties we used it on sparkplug and distributors to clear water.
When I had my classic car business I made good money from people spraying WD40 willy-nilly around the inside of a distributor.
When the spark arcs across between the rotor arm and the plug lead contact or jump the gap on the points the heat generated by the spark cooks the WD40 and it forms a film across the contact points acting as an insulator.
A quick rub over with a piece of emery paper would normally remove the film, but I suspect that the newer WD40 is not as per the original formula of many years ago when came to market.