Oil Cooler Leaking?

1/4atatime

Just installed my oil cooler yesterday and I was wondering if anyone could tell me if they think my fitting on my cooler is leaking a little or is it just from some extra oil that was on it after it overflowed when filling it. It looks to me like it's just from where it overflowed even though I wiped it off my Dad was telling me it could have stayed in the oil cooler fins and then come out when driving it. It's only on the side I spilled on and no other fittings look like they are leaking from what I can see and I have high temp thread sealant on them all. There wasn't even enough for a paper towel to pick any amount up when I wiped it

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BettyZ

If the fitting can rotate, it's not tight enough.

My advice, pull the bumper and crash bar off. Only takes me ab 6 minutes. Clean the oil cooler THOROUGHLY. Until there's no trace of oil.

Then button it back up, drive around, inspect it. Be sure to check your oil levels too.

Also, if you have an oil cooler. You should have an oil pressure gauge. By the time the OEM pressure warning light goes off, it's too late and you need a new engine. I got my gauge from Defi, and bought an A-pillar finisher with an integral gauge pod. Well worth it!

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Rusty

Did you use teflon tape or a teflon thread sealant paste on the fittings that screw into the cooler? If not, it may weep.

As for the oil pressure gauge. Good idea. But if you get one. It has to read up to 150 psi. Oil pressure on a cold start up is over 100 psi. I'm using SpeedHut gauges.

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1/4atatime

Ok I'll do that and thanks for the advice with the oil pressure gauge. I checked the oil levels they looked fine.

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1/4atatime

I used loctite 567 sealant which is what was recommended on Modshack's DIY oil cooler thread.

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Rusty

It's good stuff. One thing about using it. You have to leave it sit for a few hours for best results.

I got tubes of the stuff for free from work.

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1/4atatime

I let it sit over night before taking the car out so it should have been long enough. I did turn the car on to park it and let the engine run for a few minutes to circulate the oil but it shouldn't have affected the stuff sealing too much. How hard is it to install a oil pressure gauge?

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BettyZ

Not terribly difficult. There is a significant amount of wiring. You have to run the wires through the firewall. The passenger side, behind the battery, has some weird ribbed condom-style gasket where a bunch of wires run through the firewall. I ran mine though there. There are DIYs here explaining it.

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'14 MB Nismo | Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs.
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Spooler

What adapter fittings did you guys use on the oil cooler? I got the ones from Setrab that have a rubber o-ring. No sealant is needed.

BettyZ

Those look like Aeroquip.

FYI, Pegasus Auto Racing sells SECO 7 seals for AN fittings. Fits over the top of the nipple and seals damaged/worn nips.

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Gooch

Yep same here. Teflon tape won't do much good for o-ring seals.

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BettyZ

Correction: that looks like he has the Z1 kit, which comes with the Setrab oil cooler fittings with the o-ring. If there is leakage, it's likely coming from the hose end/oil cooler fitting connection.

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'14 MB Nismo | Boost Lab 6870 1.32 AR 553 HP / 471 ft.-lbs.
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dts3

My oil cooler started leaking soon after I installed it. In my case it was due to a faulty gasket on the sandwich plate. I was lucky that z1 sells replacements for like $4. I would have saved myself a lot of work if I'd have paid more attention before I bolted everything up.

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JARblue

Sounds like a mishitmoto sandwich plate. Good thing it didn't fail while driving and dump all your oil out on the road

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1/4atatime

It is the Z1 kit and that's what I'm thinking going to take.it off this afternoon clean it up tighten everything down and then test again. I read you aren't supposed to put any thread sealant on the AN fitting part is that correct. I did put some on the NPT part even though it has a o ring does that hurt it? I guess I just need to tighten everything a little more and check. How tight is too tight?

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