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Old 07-21-2012, 07:34 AM
zukirich zukirich is offline
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Default Three Lines on Fuel Filter?

Hi! My first post (Question) I have a 1987 D100 with a slant six. I want to know why there is three lines on the fuel filter? I thought that any return line to the tank would come off of the carb.
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Old 07-21-2012, 11:49 AM
440roadrunner 440roadrunner is offline
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I didn't know Dodge used these. Some of us have added them, I did on my 67 Dart. Examples are Wix 33040 (5/16) and 33041 (3/8) both of which have a 1/4" return port with built in orifice.

!!!HUH!!! Sure enough, NAPA shows a 23054 it has a "90" degree return

http://www.napaonline.com/Catalog/Ca...054_0325435799

These systems WORK. First one I ever saw was on my 70 RR 440 sixpack.
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Old 07-21-2012, 04:51 PM
chirorod chirorod is offline
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The small line is a vapor return line to the tank. This tends to help prevent vapor lock.
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Old 07-22-2012, 12:45 AM
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dschumers dschumers is offline
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That filter was used a lot on late model and A/C applications.
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'66 Valiant 2 door post, 232 ci Slant 6/904/3.91 8-3/4, 150 horse Top Gun shot. 7.48@88 1/8th mile, 12:001@110.07 1/4 mile. Street legal
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