Mechanical fuel pumps

[DavesJimmy]

Well heres a list of parts i purchased from lmc to hopefully help with the conversion. All parts where for 1987 chevy/gmc.

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[DavesJimmy]

Ok i got the parts in! Which of these connections on the sending unit do i use? Im guessing just the 2 with the threads.. and the other's cap???

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[73c20jim]

Agree. Keep the return line. It also recirculates the fuel. Keeps it cooler.

 

[Rusty Nail]

Known good Edelbrock 600 cfm - 1406 - with electric choke.

$100

 

[DavesJimmy]

Well finally got the Holley sniper efi system installed. New 87 tank, 87 sending unit, walbro in tank pump. Now the problem... my fuel pump wont shut off even when keys off.. grey to power. Purple to sender. Black to ground.. any thoughts?
Maybe a bad relay? oh yeah and it wont start just cranks..

 

[Honky Kong jr]

Known good Edelbrock 600 cfm - 1406 - with electric choke.

$100

LMMFAO known good......lol

 

[1987 GMC Jimmy]

The relay is definitely supposed to prevent that from happening. I’ve never known them to fail with the circuit closed, just open. I have read that can happen, though.

 

[Rusty Nail]

LMMFAO known good......lol

Haha how about "come off a running car" ?

 

[Honky Kong jr]

Haha how about "come off a running car" ?

I was referring to the oxi-moron in putting Edelbrock 600 and good together. Lol

 

[Rusty Nail]

Lmfao...

Six in one, half a dozen in another!

 

[Rusty Nail]

That was pretty funny.