blue holley install
- Thread starter aspn602
- Start date
dieseltracks
lost
- Joined
- Nov 11, 2007
- Messages
- 710
If you're just going to cut the steel lines and plumb it in on the frame, then you will need some 3/8 fuel line and 2-3/8npt hose barb fittings to hook the fuel line up to the pump and 4 hose clamps.
Billysgoat
The ANTI-BLING!
- Joined
- Apr 21, 2006
- Messages
- 10,694
First off, I do not recommend the Holley pumps, I have found them to be unreliable, just replaced the 4th one in as many years. That said, here's how and what will be needed.
1 GM fuel pump relay, it has a nice little tab on it to make for easy mounting.
About 30ft of 16gauge wire, preferably black and red.
Tubing cutter, the little mini cutters will not work, you need something with all metal construction.
Small piece of sheet metal, under 4 inches square
2(pcs) 3/8NPTx3/8 hose barb
3ft 3/8 fuel hose
4 hose clamps
Spade connectors, both male and female
Cut the supply line about 4 inches in front of the tank, it's not fun to get to, and have your hose handy, as soon as the line is cut stick the new hose up to the cut end and blow the fuel back into the tank. If you don't it will siphon out. You are going to be getting a bath from the other end as well, don't expect to stay clean. Use the piece of sheet metal to make a mount for the pump on the frame, this helps to drop it down a bit and make fr easier line up of everything. Tap into the power wire for the stock pump for the activation circuit of the relay which can be mounted on the firewall. Do not butt splice the power wires for the Holley to the power supply wires, you will be changing it out at some point, use spade connectors and either shrink wrap or electrical tape.
Pretty simplified, but should get you started.
1 GM fuel pump relay, it has a nice little tab on it to make for easy mounting.
About 30ft of 16gauge wire, preferably black and red.
Tubing cutter, the little mini cutters will not work, you need something with all metal construction.
Small piece of sheet metal, under 4 inches square
2(pcs) 3/8NPTx3/8 hose barb
3ft 3/8 fuel hose
4 hose clamps
Spade connectors, both male and female
Cut the supply line about 4 inches in front of the tank, it's not fun to get to, and have your hose handy, as soon as the line is cut stick the new hose up to the cut end and blow the fuel back into the tank. If you don't it will siphon out. You are going to be getting a bath from the other end as well, don't expect to stay clean. Use the piece of sheet metal to make a mount for the pump on the frame, this helps to drop it down a bit and make fr easier line up of everything. Tap into the power wire for the stock pump for the activation circuit of the relay which can be mounted on the firewall. Do not butt splice the power wires for the Holley to the power supply wires, you will be changing it out at some point, use spade connectors and either shrink wrap or electrical tape.
Pretty simplified, but should get you started.
Diesel Fanatic
MAYBE
- Joined
- Feb 4, 2007
- Messages
- 807
Very well said... Exactly what I did:rockwoot:
well i am on my first pump and have had it for about a year probelms free. and i know a few that have had it running no problems for a few years. so until i have some problesms that proove otherwise im all for it. for mine i simple disonnected the push lock fitting of the pick up on the top of the fuel tank itself and connected some rubber 3/8th line and used a hose clamp. (some might disagree with me here but its working and not leaking at all soo)
then i mounted my holley on the frame rail under the cab
and run the line from the tank and connected it to the pump.
then i tapped intot he stock lift pump wiring using quick connects and ran the power/ground backl to the holley
then i installed a filling on the back on the filter canister and camped on the rubber 3/8ths line and then ran that back to the holley.
last i zip tied everything (line and wires) out of harms way and covered my electrical connections with electrical tape.
and have been running this way for a while now with not a signle problem to mention.
then i mounted my holley on the frame rail under the cab
and run the line from the tank and connected it to the pump.
then i tapped intot he stock lift pump wiring using quick connects and ran the power/ground backl to the holley
then i installed a filling on the back on the filter canister and camped on the rubber 3/8ths line and then ran that back to the holley.
last i zip tied everything (line and wires) out of harms way and covered my electrical connections with electrical tape.
and have been running this way for a while now with not a signle problem to mention.
dieseltracks
lost
- Joined
- Nov 11, 2007
- Messages
- 710
It seems to be hit and miss with the Holley pumps.
I'm going on 1 1/2 yrs. running a Holley Red piggybacked with my in-tank pump.
15psi idle
14psi cruising
12psi WOT
No complaints here.
I'm going on 1 1/2 yrs. running a Holley Red piggybacked with my in-tank pump.
15psi idle
14psi cruising
12psi WOT
No complaints here.
Billysgoat
The ANTI-BLING!
- Joined
- Apr 21, 2006
- Messages
- 10,694
If you are going to be running two pumps use a relay, you can burn the lift pump circuit out in the ECM by drawing to many amps. Off the top of my head the stock Carter draws about 3amps and a Holley Blue draws about 2.5 amps. Most circuits will be designed with a 50% failsafe so the occasional spike to 4 or 5 amps on a circuit designed for 3 will not hurt, a constant 5 or 6 on the same one will eventually kill it. Yes, I know many folks who have not had a problem running both pumps off of the stock circuit, but by the same token I know of more than one or two who have had problems.