Ramon and Barrie wrote,
>> How can you even suggest that an 'original' Alpine fuel pump - in
it's
propah
>> place - could be anything less than 'elegant'?
>Well, I chose to negate the word "elegant" 'cause I didn't want to use
the
>word "hokey," though it does more appropriately describes my view of a
>nonfunctional fuel pump bolted onto a motor.
>> (Where are you hiding your (electrical) 'pacemaker'? - in the trunk
>maybe?)
I'll drop two bits on the counter "hear them drop".
In my search last year for a suitible SV camshaft, I came across a near
perfect cam, with no pits, never ground, and looked really good,
EXCEPT that the fuel pump eccentric had heavy wear on it.
It seems that the last owner of motor from which the cam was taken,
thought that the
fuel pump looked cool too, so he ran a Mazda electric pump to the carbs
and left
the mechanical pump connected with some bogus fuel line.
The pump could of course never build up any pressure "pumping air", and
thus the
pump lever wore into the cam. Under normal conditions, as the pump
lever is lifted by the eccentric, the fuel pressure keeps the lever from
touching the eccentric again till the fuel is used, and the pressure
drops. Since there was no way for the pump to build any pressure, the
pump return spring put enough force over a long enough
period to break through the heat treating on the cam.
The result was that the pump had cut a 30 thousanths groove into the cam
eccentric.
Thus the cam was not usable with a mechanical pump.
I use an electric fuel pump on my alpine, so I put a pump plate on my
alpine.
Jarrid
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