In tank High Pressure Fuel pump Prototype Sending Unit
ThisGuyUKnow
Full Time Jeeper
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- Location
- Harleysville, PA
- Vehicle(s)
- 1986 CJ7 Laredo 4.0,Nv3550,D300 Twin Stick,AMC20 3.31, 31 BFG
Honda vtx1800c
Onlyinajeepcj and I made an intank hi pressure fuel pump set up the other day. Ed did most of the work to give credit where it is due.
There is one in tank setup I know of for sale commercially for over 250 bucks and it is basically a CJ sending unit that has had the pick up tube cut and has a pump dangling loose from it.
We wanted the pump to more firmly mounted So we took a YJ unit from a part out and basically miniaturized it to fit the CJ unit.
This is the YJ unit.
http://www.quadratec.com/Assets/Imag...0/47260-lg.jpg
For the power hookup to the pump I cannibalized the sending unit hookup from another CJ unit and placed it in the top of the unit.
We took the brace return tube and the pump mount from the YJ unit and then Ed did some welding and reshaping. Extended the return tube. Tacked the brace between the low and high pressure tubes. The pump mount had to be reshaped slightly to clear the CJ tank hole.
Pics attached below. The whole unit is very stiff but the base at the top is significantly smaller than whats on the YJ and Xjs so we are going to drop the tank in a few months and check out the wear on the tank itself and the unit. Overall I thought it turned out pretty good. We didnt clean up all the welds perfectly because it goes in the tank and will never be seen.
There is one in tank setup I know of for sale commercially for over 250 bucks and it is basically a CJ sending unit that has had the pick up tube cut and has a pump dangling loose from it.
We wanted the pump to more firmly mounted So we took a YJ unit from a part out and basically miniaturized it to fit the CJ unit.
This is the YJ unit.
http://www.quadratec.com/Assets/Imag...0/47260-lg.jpg
For the power hookup to the pump I cannibalized the sending unit hookup from another CJ unit and placed it in the top of the unit.
We took the brace return tube and the pump mount from the YJ unit and then Ed did some welding and reshaping. Extended the return tube. Tacked the brace between the low and high pressure tubes. The pump mount had to be reshaped slightly to clear the CJ tank hole.
Pics attached below. The whole unit is very stiff but the base at the top is significantly smaller than whats on the YJ and Xjs so we are going to drop the tank in a few months and check out the wear on the tank itself and the unit. Overall I thought it turned out pretty good. We didnt clean up all the welds perfectly because it goes in the tank and will never be seen.