[Healeys] Fuel pump points

[Bob Spidell]

re: "QUESTION:- OK, assuming you’re still reading, could the problems 
within the switch translate to sparking and issues within the pumps’ 
points? And thus cause them to wear out so quickly?"

Given that the pumps are designed to operate intermittently, I'd say 
no.  Getting decent points seems to be a crapshoot these days; did your 
points wear, or become pitted? I suspect, but can't prove, that 
contemporary points use less tungsten--an expensive metal that, I think, 
is a bit difficult to work--than older ones; perhaps just a 'veneer' on 
a cheaper metal.

Bob


On 5/31/2020 6:12 AM, simon.lachlan at alexarevel.plus.com wrote:
>
> About a week ago I posted a query which was to the effect, “How long 
> might one expect a set of (proper Burlen) points for an SU pump to last?”
>
> “How long is a piece of string?”, I hear you say.
>
> So, the reason for the original query was this:-  Not withstanding 
> that they were not Taiwanese and that I reckon they were correctly 
> installed, I think that they wore out rather quickly despite both sets 
> being protected by Burlen supplied diodes.
>
> Replacing the points seemed, at first glance, to be harder than I 
> remembered from previous times……I could get both sets running on the 
> bench. With four plus one extra holes after “throw-over(?)”. But, once 
> in the car, one pump would only work for a while….totally haphazard.
>
> Eventually I turned to the wiring and terminals at the “on, off, on” 
> switch.:-
>
> On….left hand half
>
> Off….neither half
>
> On….right hand half
>
> The RHS terminals were intermittent. Ie losing continuity hence 
> cutting off power to the RHS.
>
> QUESTION:- OK, assuming you’re still reading, could the problems 
> within the switch translate to sparking and issues within the pumps’ 
> points? And thus cause them to wear out so quickly?
>
> Thanks,
>
> Simon
>
>

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