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Fuel System Questions
Topic Started: Oct 16 2009, 08:49 PM (440 Views)
cdover73
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My '53 was bought without a gas tank under the seat, the original glass-bowl fuel pump in place but kinked off, a boat gas tank in the back, and an in-line electric fuel pump. I read a lot about putting a regulator in the line to keep the pressure around 1.5 - 2 lbs. I run a new Solex carb. The engine runs fine as is but I want to put a new tank and fuel pump in it as designed.

How do I determine if I need a 5 or 6 hole tank and sending unit? I have looked at the links for determining your model, but it was vague how to tell the difference. I can't find my serial numbers so that is no help.

Does the mechanical pump provide the proper lower pressures for the carb? Is running the electric pump without a regulator a major no-no or does it really matter?
Thanks,

cdover73

'53 (undetermined) Willys Jeep CJ3B
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oldtime
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cdover73,

Log on here:
http://www.film.queensu.ca/CJ3B/Tech/FuelTank.html Then Scroll down to Three "B" Tanks

Any 2A 3A or 3B tank can work for your 1953, but the pre 1954 tanks with 5 hole guage mounting are technically correct.

The proper functioning mechanical fuel pump supplies the correct psi for the Carter carburetor only.
I hear tell that the Solex will need less pressure and this is critical for it to function well.
Currently building my final F-134 powered 3B .
Rock Crawler using factory parts from the Willys Motors era (1953-1963)

http://s4.zetaboards.com/CJ3B_Bulletin_Board/topic/30228766/1/#new
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The CJ-2A Page has a CJ-2A Message Board.
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For CJ-5 and Dauntless V6 postings, see the Early CJ-5 Bulletin Board.
The Old Willys Forum is dedicated to wagons and pickups.
Surrey Gala and Dispatcher Jeeps are under DJ-3A Dispatcher Posts.
The M38/M38A1/M606 Preservation Group has a forum.
For other CJ and military Jeeps, see the g503 Message Boards.
See the Forward Forum for Forward Control Jeeps.
To post ads for other Willys parts or Jeeps, see the WillysTech Buy/Sell/Swap Message Board.
For tech problems with other Willys models, try the WillysTech e-mail list.
The Bantam Trailer forum covers Jeep trailers.