How many filters should there be? -
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post #1 of 4 Old 11-24-2011, 10:12 PM Thread Starter
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1988 YJ Wrangler 
Join Date: Sep 2010
Location: Logan, UT
Posts: 4
How many filters should there be?

Need some help redoing my fuel line. I'm fairly new to JEEP love, and still learning so please forgive my ignorance. The previous owner did a lot of rigging and, near as I can tell, not always for the best. Anyways, '88 YJ w/ stock carb...

First ? is... How many fuel filters should I have? Following from the tank the first filter I run into is on the pass side of the engine.

This seems to be right before some type of "exchange", if you will, on the side of the engine. (BTW, what is that part?) From there the line crosses the top of the engine towards the carb where we find this one:

So what should I actually have going on here?

Also, when I went to purchase a new filter I received one with what I'm guessing is a return line. However my current filters don't appear to have that, but the T on top of my tank does have a connection with no hose going to it (pointing towards the pass side I believe). Should I also have a return line?

Any help would be greatly appreciated.
Thanks in advance.

evilbetty is offline  
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post #2 of 4 Old 11-24-2011, 10:25 PM
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1989 YJ Wrangler 
Join Date: Mar 2011
Location: Victoria
Posts: 156
First off, you only need the one filter that is by the carb.
The exchange I believe you are talking about it the fuel pump.
The only purpose I can see for the secondary fuel filter before the pump is that you tank had lost of crud of "bad" gas and was ruining fuel pumps...but that is just a guess.
You should have a return line. Mine goes from the filter, down beside the manifold, across to the driver side frame rail and on to the take.

89yjsahara258 is offline  
post #3 of 4 Old 11-25-2011, 12:02 AM
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1988 YJ Wrangler 
Join Date: Aug 2008
Location: Alberta
Posts: 1,441
On my 88 with the 2.5 there is 2 filters for the fuel.
1st one is in the tank attached to the pickup for the pump...more like a pre-filter.
2nd one is mounted on the frame just behind the E-brake cable mount with the adjuster. This is the main filter and is about half the size of a soda can.
Looks like the PO moved it to the engine bay in your first picture.

Some engines use a secondary one like yours up near the carb or like the 82 Chev I had it was in the carb itself where the main feed line attached.

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post #4 of 4 Old 11-25-2011, 12:13 AM
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1989 YJ Wrangler 
Join Date: Mar 2011
Location: Victoria
Posts: 156
OP has the 4.2l like I do which, aside from the screen in the gas tank, only has one filter by the carb.

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