<VV> The Eternal Mechanical vs Electrical Fuel Pump Question
Vairtec at optonline.net
Mon May 25 22:41:23 EDT 2009
Hello, friends, and welcome to this season's fresh installment of
Which Is Better: Stock Mechanical Fuel Pump or Aftermarket Electric Fuel Pump?
For this go-round, we have some particulars to add. The subject
vehicle is a 1963 Rampside, being put into regular service after
years of being a hangar queen. So day-to-day dependability is a
prime concern. The original stock pump did its failure thing,
filling the crankcase with fuel and diluting the engine oil. Despite
that experience, the vehicle's owner (me) has no particular objection
to stock pumps nor any inherent resistance to the use of an electric
pump. The true issue is, I can't make up my mind!
We do not have time nor bandwidth for re-hashing the well-documented
high failure rate of stock pumps back several years ago. Our concern
is with pumps that are available TODAY. Since the chatter about pump
failures has died down, I am making the assumption that if you order
a stock pump today from one of our fine Corvair-specific vendors, you
will receive a pump with reliability greatly improved over what we
were seeing a few years ago.
Is this true?
Of the other Corvairs I own, two of them are operating today on their
factory-original pumps, while the third, a car prepared for track
events, has an electric pump. I have heard it from good authority
that if you take an original pump off an engine and put it in a box
on a shelf in the garage for a few years, it is far more likely to
fail when returned to service than if it had been left in
service. So while my Corvairs with their original pumps continue to
run just fine, I am reluctant to put an older take-off pump in the
Rampside. Which means I need to buy a new pump.
Who has purchased a new stock fuel pump RECENTLY, and put it into
use, and been pleased (or displeased)? Similarly, who has recently
made the change to an electric pump, and is pleased or displeased?
A side question for the electric users: What, if any, means have you
used to cut off electric power in the event that the engine stops or
the vehicle crashes? (In my track car, I have an oil pressure
switch, a Ford inertia switch, and a toggle override switch for cold starts.)
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