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  • November 21, 2024, 05:28:19 PM

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Author Topic: Changing to 4.0L drivetrain : In tank pump or inline?  (Read 11036 times)

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Offline captspillane

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Re: Changing to 4.0L drivetrain : In tank pump or inline?
« Reply #15 on: June 16, 2014, 06:57:53 PM »
Inline pumps are horrible. I have a Hesco MPI kit and a Howell TBI kit, and both used inline pumps on the transmission skid plate. They both suck horribly and I will never use another inline pump again.

They burn out about once a year because they don't cool well and are very fragile to filtration.

Hesco wants $140 for a replacement. A comparable in tank pump costs about $30 if you order a stock unit off Rockauto and adapt it to the AMC pickup tube.

They are very very loud and annoying.

If you run out of gas you must unplug the input line and let gas flow out all over the place until the air is gone and you can push the line back on the pump while cursing. The inline pumps cannot prime themselves even if you top the gas tank off completely.
Currently Inspected and Insured as of Jan 2013:
-1985 Eagle Station Wagon 258 T5 Stickshift
-1980 Eagle Station Wagon 258 Auto Fuel-injected with GM TBI

Minor Repairs Underway:
-1982 Eagle SX4 258 T5
-1981 Kammback 2.5L Iron Duke T5

Restoration Efforts Near Completion:
-1982 SX4- 401 NV3550
-1983 SX4- 4.5 MPI NSG370 (6 Speed)

Restoration Efforts Underway:
-1985 SW- 4.0 MPI AX15
-1982 SX4- 4.0 AW4
-1981 SX4- SD33T NV4500 (Turbodiesel 5 speed)

Future Rescue Efforts- '85 Maroon SW, '87 Limited SW, '84 Limited SW, '87 4 door Sedan, '81 2 door Sedan, '88 White SW, '77 4 door Hornet, '74 2 door Hornet, '79 Spirit AMX, '81 Kammback.

RIP- Red '81 SX4, '84 4dr Sedan, '84 SW, '81 SW, '80 Spirit, '83 SW, '83 4dr Sedan

Offline Baskinator

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Re: Changing to 4.0L drivetrain : In tank pump or inline?
« Reply #16 on: September 29, 2014, 06:24:13 PM »
FYI, someone on here rigged up a GM in-tank fuel pump to fit in the Eagle tank easily through the sender area. The tank would not need to be dropped to replace it, and the pumps cost less than $20. Baffling may still be an issue, but it could potentially be remedied with some creative work.
1982 AMC Eagle SX/4 (Work In Progress)

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Offline Nightpath

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Re: Changing to 4.0L drivetrain : In tank pump or inline?
« Reply #17 on: November 03, 2014, 09:13:21 PM »
Do you know who? I've hit a huge hurdle...forgot about the fuel pump and listened to some :censored: that said an XJ one would fit right in there. Now I'm cornholed, tank is off and I'm running out of money.

What's a cheap solution to get my fuel injection working?

Offline carnuck

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Re: Changing to 4.0L drivetrain : In tank pump or inline?
« Reply #18 on: November 04, 2014, 12:45:25 PM »
If you have a wagon, I'm planning to put the whole XJ tank in mine with the original fill blocked off and the Eagle filler grafted to the tank. Aside from that, there is a Holley external pump I can't recall the number of that works. Did you add a return line already or mod the vapor return line to work?
« Last Edit: November 04, 2014, 12:46:38 PM by carnuck »
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Offline eaglefreek

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Re: Changing to 4.0L drivetrain : In tank pump or inline?
« Reply #19 on: November 04, 2014, 07:09:18 PM »


What's a cheap solution to get my fuel injection working?
Inline pump.
1986 AMC Eagle Wagon 4.2L/4.0L head, AW4,NP242, Chrysler 8.25" rear.
1981 AMC Eagle Wagon As Seen On TV  Lost In Transmission


 

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Offline amchornet

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Re: Changing to 4.0L drivetrain : In tank pump or inline?
« Reply #20 on: November 18, 2014, 06:35:22 AM »
   You have to modify the stock zj pump to do this but it will work as you can see. I have used a zj pump off a 93 and also a 95 pump off an xj. They both required some minor modification to get into the tank.

Joe Washburn
1976 hornet sedan 258 4.0 head mpfi
1985 eagle sedan 4.0 mpfi
1998 jeep grand

 

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