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Re: [Healeys] fuel pump points

To: Dave Porter <frogeye@porterscustom.com>
Subject: Re: [Healeys] fuel pump points
From: Bob Spidell <bspidell@comcast.net>
Date: Wed, 20 Jul 2011 19:23:46 +0000 (UTC)
re: " One pump has a diode (little white pancake thing)" 

Most diodes are cylindrical or spherical (the OEM diodes are large black 
'barrels' with two flexible leads). That sounds more like a capacitor; 
depending on the type it might have been fried when you reversed the car's 

I fought this issue for years; tried all manner of diodes and capacitors. My 
experience is: 

- (by extrapolation) no diode or capacitor: pump will work for 2-3K miles at 
best before causing problems 
- (by experience) capacitor only: pump will work 3-5K miles 
- (by experience) diode: pump will work for 5-8K miles 
- (by experience) 'transistorized' (power transistor switched by original 
points): pump will work for 8-12K miles 

I finally bit the bullet and put an SU solid state (Hall Effect) pump in; has 
worked for over 20K miles. 


Bob Spidell - San Jose, CA 

----- Original Message -----

Likely the diode is kaput.. and surely with none on the other the arcing 
will be excessive.. frogeye@porterscustom.com 

Porter Customs 2909 Arno NE 
(Moss) and the other was my professionally rebuilt original. Yesterday, it 
happened again and I file and polished the points and all is fine. I just 
don't feel confident. I do like the original-ness of my BJ8 (phase1) and 
always tried to use original stuff on replacement. It was converted to neg 
ground 10 years ago. One pump has a diode (little white pancake thing) the 
other is the original pump with out it. 
Rich Kahn 
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