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Unread 03-28-2015, 10:45 PM   #1
ThisGuyUKnow
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1985 CJ7 
 
Join Date: Jul 2008
Location: Mobile, Alabama
Posts: 887
In tank Fuel pump Prototype

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 thouhgt it turned out pretty good. We didnt clean up all the welds perfectly because it goes in the tank and will never be seen.

20150322_210642.jpg   20150322_210647.jpg   20150322_210653.jpg   20150322_210659.jpg   20150322_210703.jpg  

20150322_211845.jpg  
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Unread 03-29-2015, 03:24 AM   #2
dg6772
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Join Date: Feb 2011
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That looks nice. Pretty much what I did to put a pump in my CJ tank for my tbi 350. Great job
*2thumbsup*

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Unread 03-29-2015, 06:10 AM   #3
HackFabrication
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1976 CJ5 
 
Join Date: Nov 2007
Location: Canton, Michigan
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There's a job waiting for you guys at Hack Fabrication (where no new part is too good to modify).....

I like using the YJ setup and modifying it. Does the sender work with the existing CJ fuel gauge?
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Unread 03-29-2015, 10:21 AM   #4
jeepwhore
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1984 CJ7 
 
Join Date: Jun 2006
Location: Kamloops, BC
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Something I'll have to do as well. How much time do you have into it?
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'84 CJ-7: Yota axles (spartan locked front, e-locked rear) 4" BDS, 1" Daystar & 3/8" shackle lifts, 35" X-Terrains on steelies, YJ Tub & family roll bar, heater blower upgrade, 4.2L w/MC2100 & Team Rush, Warn 8274. Rebuilt 4.2/4.0 hybrid, AX15 and twin sticks/clocking ring waiting to go in.

The advertised position for a topless, dirty jeep girl has been filled......by my wife. Thanks to all that applied.
<------------and yes, that is her.
:-D
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Unread 03-29-2015, 12:08 PM   #5
dg6772
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Mine only took a couple of hours on my picnic table, with a borrowed soldering iron from my neighbor. I even converted mine too quick disconnect ends. More because no tools than speed.

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Unread 03-29-2015, 12:54 PM   #6
ThisGuyUKnow
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Quote:
Originally Posted by HackFabrication View Post
There's a job waiting for you guys at Hack Fabrication (where no new part is too good to modify).....

I like using the YJ setup and modifying it. Does the sender work with the existing CJ fuel gauge?
The sending unit is a cj unit modified with parts salvaged from a yj unit.
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Unread 03-29-2015, 01:02 PM   #7
dg6772
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I used a Chevy unit to modify my CJ unit. My friend put a CJ dash into a yj tub. The gauge reads backwards, but is still accurate. Just reverse. He is using a yj tank and sending unit.

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Unread 03-29-2015, 02:22 PM   #8
ThisGuyUKnow
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1985 CJ7 
 
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Quote:
Originally Posted by dg6772 View Post
I used a Chevy unit to modify my CJ unit. My friend put a CJ dash into a yj tub. The gauge reads backwards, but is still accurate. Just reverse. He is using a yj tank and sending unit.

Dave in Muskegon using JeepForum app
I wouldn't be ok with my gauge reading backwards
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Unread 03-29-2015, 02:31 PM   #9
dg6772
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I agree, but, it's a kinds cool theft prevention. When full,looks empty; when empty, looks full and doesn't get very far. Not for me though....

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