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How to repair leaking oil cooler

Discussion in 'How-To' started by Yellow_rag, May 10, 2011.

  1. hotcobra03

    hotcobra03 Well-Known Member Established Member

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  2. oldstv

    oldstv Well-Known Member Premium Member Established Member

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    I am so glad you brought this to the top. This is my next project. I wonder if anything will be different since I have a tubular k member?
     
  3. SilverNotch

    SilverNotch Member Established Member

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    Depending on your block you’ll also have a drain plug on the block for the coolant. My 01 cobra has a teksid and on the driver’s side near the motor mount there’s a drain. I did the oil cooler rebuild from speed concepts if anyone has questions pm
    me.


    Sent from my iPhone using Tapatalk
     
  4. oldstv

    oldstv Well-Known Member Premium Member Established Member

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    Thanks for that offer. I ordered the kit and will do the rebuild as soon as it gets here.
    Did you remove the splash guard and wheel?
     
  5. SilverNotch

    SilverNotch Member Established Member

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    No need


    Sent from my iPhone using Tapatalk
     
  6. jrgoffin

    jrgoffin Been around... Established Member

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    There is also a section on my site pertaining to the oil cooler with links to the places to buy the o-ring kits, along with info on the water passage gasket that is always a source of confusion. If you buy the o-rings from Delk (shown below) and tell Matt you saw it on my site, he'll also knock a bit off the price.

    http://www.terminator-cobra.com/cooling.htm#Oil_cooler

    Oil%20cooler%20o-ring%20kit%20Delk.jpg
     
    shurur and smaring like this.
  7. Topdown

    Topdown New Member

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    Glad I found this thread, a lot of good information. 2 questions though. If the o-ring behind the filter stud got messed up during an oil change would it be leaking oil or antifreeze? Does the filter stud take a 12 mm or 1/2" hex wrench? I've seen both.
     
  8. jrgoffin

    jrgoffin Been around... Established Member

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    There are hyperlinks in the link on the post above yours that will answer all your questions.
     
  9. AnarchyVA

    AnarchyVA Member Established Member

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    I bought a kit that came with all of the o rings. The biggest PITA was figuring out how to remove the entire assembly. I about gave up when I thought you had to remove all of the bolts first. There was NO way to remove those bolts. But once you figure out how to remove the cooler from the adapter first its much easier to get to those bolts. Another project I hope I don't have to do for a little while.
     
  10. SilverNotch

    SilverNotch Member Established Member

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    Plus all the pain of disposing of the coolant/oil mixture. It takes a couple flushes to get rid of it all.
     
  11. MissV8der

    MissV8der Active Member Established Member

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    Unfortunately, I'll be tackling this project next weekend since mine has started to have a small leak in this area. I ordered the kit from SpeedConcepts and received it super quickly. Hoping a project on this car actually goes as smoothly and pain-free as it "should".... since it usually doesn't :rolleyes:

    Great write-up and definitely appreciate the updated pictures from Smaring
     
  12. slo984now

    slo984now AKA 01yellerCobra Established Member

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    Sometimes the center piece just needs to be re-torqued. It's a little unnerving putting that much torque on a skinny fastener.
     
    98 svt likes this.
  13. MissV8der

    MissV8der Active Member Established Member

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    So, I finally finished this project with great success so far (no leaks as of yet). It did take me the better part of 2 days, unfortunately, since I did do it without any help. Getting the cooler separated from the adapter (over that top O-ring on the shaft of the adapter) was a HUGE problem. After longer than I would like to admit, I finally wiggled and pulled enough for it to pop off the shaft. I pulled the cooler apart and was very happy Ken, with Speed Concepts had talked me in to getting the core O-rings, because I do believe that was the cause of my leak. Once I pulled the core out, I saw damage to the internal O-rings....even though all 6 of the O-rings I ended up replacing looked quite worn and in need of replacement, the one in the picture looked to be the culprit of my leak (possibly).

    57030121023-B70-D7-BF8-9-A2-F-456-D-A6-E5-87-E8-D67-C10-D3.jpg

    Anyways, advice for anyone that is about to do this project....separating the adapter and the cooler will be THE biggest pain in the butt, but you'll be SO happy when it finally comes apart. No, you cannot get the adapter off without pulling the cooler off, there are 2 bolts that are hidden by the cooler. And lastly, when you go to put the cooler back on (with the adapter bolted back up to the car), you will cuss and moan just as much trying to get the oil cooler back on over that o-ring on the shaft as you did trying to get it off.

    Good luck to anyone that is going to do this.

    Also BIG shout out and thanks to Ken at Speed Concepts . He was a very huge help several times when I had questions or needed help, he called me back on a Sunday morning, so he's always available if you're in a bind.
     
    MG0h3 likes this.
  14. Hector C

    Hector C Member Established Member

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    Very detailed and useful write up. I followed the steps when i did mine and ordered the o-rings through Mcmaster-carr since i needed them Asap so i have a bunch left over now.

    Sent from my SM-G960U using the svtperformance.com mobile app
     
  15. 03yllwguy

    03yllwguy Daily driven since 2003 Established Member

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    Just did this today, instructions here are great.

    I ordered the wrong FelPro which LMR had listed. My application required Fel-Pro 70801 which matched up precisely.

    After piecing the o-ring parts individually, I should have bought the kit from Speed Concepts. Once you spend $5 on the hex key, $25 on the kit off e-bay, and $20 for the adapter gasket you are at the same cost minus taxes.

    Great instructions, had mine off in 30 minutes, hardest part is cleaning up the mess.
     

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