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Re: Electric Fuel Pump:LOW&BACK

To: datsun-roadsters@autox.team.net
Subject: Re: Electric Fuel Pump:LOW&BACK
From: SPL311RDST@aol.com
Date: Wed, 29 Sep 1999 14:59:01 EDT
Keep the pump down low, and as far back as possible. Electric pumps, by 
nature, "push" better than they "pull". (Engineering types feel free to step 
in & explain why...) By putting it up above tank level (eg: trunk,) gravity 
will drain the pump, and it will have to re-prime itself every time. Same 
undue stress when mounted up in the engine compartment- they just don't 
"suck" like a mechanical pump. These both put extra wear-n-tear on the pump 
and will shorten it's life considerably. There are some high-dollar pumps out 
there with provisions for a return-line feed to keep their prime, but even 
then, they recommend a "below sea level" location. 

Confession: yes, I did a quickie roadside repair on mine, and stuffed the 
electric up in the engine compartment, BUT I did have the advantage, working 
in a parts store, to trade it back in as defective on a regular basis with no 
questions asked <G>.

Laurie
70 SPL311
Chandler, AZ

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