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Thread: Fuel filter o ring help

  1. #11
    4 Star General m715mike's Avatar
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    I attempted to replace my fuel filters today (original style filter in the canisters). I purchased NAPA Gold filters from fleetfilter.com and attempted to use the gaskets that came with the new filters. After reading this thread and a couple others, I now know I was using the wrong size gasket.

    I got lucky with the primary filter. It sealed nicely on my second attempt. The original gasket was still good on the secondary filter, and I reused it. However, I had no luck with the final filter. Looks like I'm headed to NAPA for a 5070 gasket.

    Once again, I am very appreciative that someone asked a question (the OP in this tread) and several others replied with useful information! Thank you!
    1972 Reo Motors M35A2 w/w
    1987 Turtle Mountain M105A2 (2/11 VSE Rework)

    Previously owned:
    1968 Alvis Stalwart MK II (Stal II 484)
    1966 Am General M35A2 wo/w
    1967 Kaiser M715

  2. #12
    4 Star General Tracer's Avatar
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    Just changed my fuel filters with NAPA Gold filters and used the gaskets that came with them. Usually I have more trouble getting the old gaskets out. Coat the new gaskets with a little oil and use your fingers to install.
    1972 M35A2C W/W, 1986 M105A2, 1953 M38A1, S250 Shelter. "He was old and wise, which meant tired and disappointed" T.E. Lawrence

  3. #13
    General Katavic918's Avatar
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    I used Napa #3511 and 3512. I also had trouble with the o-rings. I guess I used the wrong ones also. They fit perfect except for the rings.
    1970 M35A2 (Sold 8-26-17)
    1991 M998
    1972 M35A2

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    dmetalmiki (04-25-2016)

  5. #14
    4 Star General dmetalmiki's Avatar
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    Quote Originally Posted by Floridianson View Post
    If you can't figure it out then it's the wrong one. Just get the correct one, a little grease and install with one finger. Not a problem.
    This is the way to go, And the method we use.
    DIAMOND T M20.
    M54A2 I.H. M62. wrecker
    M54A2 5 Ton (with Radio Body. ex praga command station)
    M45 530C fire truck
    M561 Gamma Goat
    1942 Ford Jeep (with underfloor tulsa winch)
    1945 Willys Jeep (with V8 flathead Engine) And now 'that' overdrive'..

  6. #15
    Head of Stuff N' Things Mrmag1's Avatar
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    Ok dumb question but are all the other ones rings useless that cone with it? My secondary filters I got from big Mike's has the napas in the bag and other ones that I guess are the right ones to use. Also in the Napa bag is 3 other orings and such that where not in the filters when I took em out. I figure they are for other applications for different vehicles.... I wrong?
    1971 M35A2C " Marauder"

  7. #16
    dumpsterlandingfromorbit! gimpyrobb's Avatar
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    I have correct usgi filters with the correct gaskets for $5 each plus shipping. No guess work on the O rings. PM if interested.

  8. #17
    Head of Stuff N' Things Mrmag1's Avatar
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    Quote Originally Posted by gimpyrobb View Post
    I have correct usgi filters with the correct gaskets for $5 each plus shipping. No guess work on the O rings. PM if interested.

    No I have what's right, I am asking about the extras.
    1971 M35A2C " Marauder"

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