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  1. #1
    I'm Awesome Hodges87's Avatar
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    Default How to Replace oil filter adapter gasket & o-ring

    How to: Replace your Oil cooler adapter gasket & o-rings

    If your Oil cooler adapter is leaking like the one above don't worry its simple fix.

    Here are the item needed to replace the gaskets:

    Felpro gasket set # ES72671
    De-greaser (optional)
    Scraper to remove old gasket
    1/2 inch socket and ratchet
    Pick (if removing oil cooler lines)
    Flat head screwdriver

    Removal:

    Step 1: Clean and degrease the adapter and surrounding area. (Not always necessary, but I like a clean engine)

    Step 2: Drain the oil and remove the oil filter and drain for a few mins.

    Step 3: (This is step optional, I wanted to clean the oil filter adapter and replace the o-rings on the oil cooler lines) Carefully remove the plastic keepers and slide them back, then use a pick to pull the c-clamp off and pull the line out of the adapter.

    Step 4: Remove the 2 (1/2 inch) bolts holding the oil filter adapter on and separate the adapter from the engine

    Step 5: Remove the o-ring and scrap away the old gasket


    Installation:


    Step 1: Replace the o-rings inside the oil cooler line fittings on the adapter

    Step 2: Install the large o-ring and gasket (a little petroleum jelly will help the gasket stay in place)

    Step 2: Install the adapter with 2 (1/2 inch) bolts

    Step 3: Install the lines into the adapter.

    Step 4: Install a NEW oil filter & engine oil

    Finished! I hope this guide helped you fix your leak!
    Sold!|97 Z71 5.7L|F44|14 Bolt SF|Magna-flow Cats|AD244 Upgrade|MSD Wires|Corvette Servo|Flowmaster Super 40 DI/DO|Royal Purple 5W-30|

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  2. #2
    I'm all 8-Luggy! 88GMCtruck's Avatar
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    Default

    Good write up, I recently swapped my adapter for the older style straight down filter, it was the same process.
    Dave --- "My Trucks either have three letters on the grille, or are dressed in formal attire."



    78 Nomad 19'; 5" lift/LED/Delco HU -Sold 8/14
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  3. #3
    Dirt Road Scholar Ol'Rover's Avatar
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    if you just did a straight down filter...did you completly by-pass the oil cooler?
    1998 GMC Sierra SL, CRATE 305 Vortec ported & polished,LT1 Cam,Comp Cam Roller Tips,4L60E,3.42 Lock-Right,Flowmaster 40 dumped, HID's, K&N

  4. #4
    I'm all 8-Luggy! 88GMCtruck's Avatar
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    Default

    Quote Originally Posted by Ol'Rover View Post
    if you just did a straight down filter...did you completly by-pass the oil cooler?
    I actually used the older style adapter and added the larger external cooler. Overall it added 2 quarts to the oil system. I did a writeup on mine as well: http://www.gmt400.com/forum/showthre...nt-to-see-this)
    Dave --- "My Trucks either have three letters on the grille, or are dressed in formal attire."



    78 Nomad 19'; 5" lift/LED/Delco HU -Sold 8/14
    88 GMC K1500; 9" SAS/D44/14FF Detroit/NV4500/NP241/TBI454
    95 Alpenlite Silverton 11'; Full LED
    98 "GMChevy" K3500; Crew Dually/454/NV4500
    02 GMC K1500; HT pkg/2" lowered/SS 20s
    99 Chevy K2500; 6.5L/NV4500 - Sold 3/14 -158,784 miles

  5. #5
    Resident Canuck. silverado_06's Avatar
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    awesome. i noticed mine is leaking as well, and was wondering how hard it would be to do myself. seems easy.

    Sig by Butch.

  6. #6
    I'm Awesome Swims350's Avatar
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    I called autozone and advance on the fel pro number and they got 3 in stock at advance, gonna buy me one tomorrow and do an oil change on my truck, mines leaking. My dad said so a straight filter, but mine doesn't have oil cooler lines, just the same adapter.

  7. #7
    I'm Awesome Swims350's Avatar
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    got mine today, gonna install them tomorrow, thanks for the write up and part no.

  8. #8
    I'm Awesome Hodges87's Avatar
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    Its easy to do, but it can be messy.
    Sold!|97 Z71 5.7L|F44|14 Bolt SF|Magna-flow Cats|AD244 Upgrade|MSD Wires|Corvette Servo|Flowmaster Super 40 DI/DO|Royal Purple 5W-30|

    New Truck: 05 CCSB Duramax LLY 4x4

  9. #9
    I'm Awesome Swims350's Avatar
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    That's for sure, I had to pull mine with the filter on it since I couldn't find the right oil filter wrench or cup.

  10. #10
    I'm Awesome
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    Default

    Quote Originally Posted by Swims350 View Post
    That's for sure, I had to pull mine with the filter on it since I couldn't find the right oil filter wrench or cup.
    screwdriver makes for a universal filter wrench imo if you really need too.
    Also at work we use our mcmap/riggers belt if we cant find a filter wrench.

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