[Diy_efi] Need Help With Holley Pro-Jection

Wed Apr 9 06:08:37 GMT 2003

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In a message dated 4/8/03 11:43:09 PM Central Daylight Time, 
samger2 at hotmail.com writes:

> But would it work at all if the voltage polarity was reversed?
> 
> Let me also add that the instructions state to mount the pump no higher 
> than 
> the lowest point of the gas tank.  That's impossible for me.  I have an 
> aftermarket tank that the bottom comes near the bottom of my springs, so 
> after speaking to some other Jeepers, they suggested that it should work 
> o.k. if I mount it on the frame rail.  Thanks.
> 
> Sam
> 
> 
> 

Polarity reversed on the pump (DC motor) would cause the pump to run 
backwards, thus pumping into the tank. I had an old analog Pro-jection 
installed on my '82 CJ-5 for 4 years. I also had a 21-gal aftermarket fuel 
tank (required spacers to lower the skid-plate 4", ie. no more hardcore 
trails). But I never had a problem with fuel delivery with the pump mounted 
to the frame just forward of the rear "hump" over the rear axle. I'm not sure 
what pump you have, but the small, slender, black pump supplied with the old 
2bbl Pro-ject was CRAP. Expect to replace it soon if you are using that one. 
Good luck with it.

Beau

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<HTML>In a message dated 4/8/03=
 11:43:09 PM Central Daylight Time, samger2 at hotmail.com writes:
 
 
 <BLOCKQUOTE TYPE=3DCITE style=3D"BORDER-LEFT: #0000ff 2px solid; MARGIN-=
LEFT: 5px; MARGIN-RIGHT: 0px; PADDING-LEFT: 5px">But would it work at all if=
 the voltage polarity was reversed?
 
 Let me also add that the instructions state to mount the pump no higher=20=
than=20
 the lowest point of the gas tank. &nbsp;That's impossible for me. &nbsp;=
I have an=20
 aftermarket tank that the bottom comes near the bottom of my springs, so=
=20
 after speaking to some other Jeepers, they suggested that it should work=
=20
 o.k. if I mount it on the frame rail. &nbsp;Thanks.
 
 Sam
 
 
 </BLOCKQUOTE>
 
 Polarity reversed on the pump (DC motor) would cause the pump to run bac=
kwards, thus pumping into the tank. I had an old analog Pro-jection installe=
d on my '82 CJ-5 for 4 years. I also had a 21-gal aftermarket fuel tank (req=
uired spacers to lower the skid-plate 4", ie. no more hardcore trails). But=20=
I never had a problem with fuel delivery with the pump mounted to the frame=20=
just forward of the rear "hump" over the rear axle. I'm not sure what pump y=
ou have, but the small, slender, black pump supplied with the old 2bbl Pro-j=
ect was CRAP. Expect to replace it soon if you are using that one. Good luck=
 with it.
 
 Beau</HTML>

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