[Healeys] Master Switch

[Perry]

Listers
Our 1955 early BN2, has the same master switch in that it first started with back on August 23, 1955. Granted it was checked and cleaned with spray contact cleaner during the restoration in 2001. You folks all already know this story, if a part fails, there is always a reason for the failure.  Electrical bits tend to fail when a electrical contact does or doesn’t work as designed. Dirty or corroded points on an SU fuel pump will leave you stranded on the side of the road, in this case Route 66 in the Texas panhandle. (That story takes about an hour and a half to tell).  Lucas smoke emitting from the underside of the dash board always get the imagination going and there is always a cause.  A battery  post (pick positive or negative depending on you frame of mind) looks for a way to connect to the other terminal ( ground or power). Anything along that route that is the weak link in the circuit, whether poor connection, undersized or damaged wire, etc.,  has the potential to make the crazy 12 volts to seek another way to the target.  It will find a way if there are alternatives to the design plan. You’ll recall the frayed wire that touched that brand new capillary tube for the water temp gauge, that ruined the gauge and the wiring harness. Just be glad that our toys are not filled with all kinds of electronic gadgets because the chances of figuring out what really went wrong in that case is just this side of NIL. (that is just west of Baltimore) 😊  
Perry


From: Michael MacLean

I asked if anyone was having problems with the master switch that Moss offers.  I am getting quite an education.  


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