Guys,
Long story short. I'm on my 2nd oil cooler, since the last one seemed to leak from one of the fittings. Had the fitting changed and it still leaked (twice as well as the lines)! Oil cooler was a Mishicrapola w/ Earls fittings and new lines. After ditching this oil cooler I went with a Greddy. Low in behold, I am getting a leak from one of the fittings again! The leak is so minor, but a leak nonthless!!
Any insight on this would be greatly appreciated. My shop wants to change the fitting and see if that ends the issue. Just feell like I'm going down the same road as with the Mishimoto. Could there be too much pressure, that it's causing a leak?

 

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The fittings and line are stock w/ teh Greddy Kit. There wasnt any need to shoten them. As far as the thread sealant--I asked why they didnt use it in the past and was told on a pressure fitting it wasnt needed.
The leak looks like its coming out of the fitting to the line, not where the fitting would screw into..
This issue is really making me nuts, as this has been the ONLY problem since my car was made F/A.

 

defective line then. -an fittings require no sealant. npt should have teflon tape or sealant applied.

 

I'm waiting for a new fitting. Hopefully this will work

 

Need to be tight, really tight.

When forged installed mine on my G35 APS-TT, sharif even had to call the distributor to get some advice on tightening them, too much is evidently bad, too little and they leak.

Got them right on the second try, never leaked again. If I remember correctly they came up with a way to add a couple ft/lbs or torque, clean the fitting and then test for leaks with a paper towel,... repeat 4-5 times. I don't remember the ft/lbs the fitting took to stop leaking, it was a about 30-45 mins. total service time though.

 

I'm going to try and torque it down when it's on the lift. I really dont want them to change the fitting on these lines.

 

weird you keep having problems. I have probably made 100 or so hose ends with no leaks, even on my 1st try. Are you guys shoving the hose too far into the fitting? the inner-rubber should just be flush with the lip inside the female part of the fitting.

are you also using the correct hose for the fitting? just becuase its steel braided does not mean it works with earls fittings....

good luck!

 

These are stock lines from the Greddy oil cooler. There was no need to change the length on them.

 

Its your fittings and hoses. The hose and clamps I use dont even require clamps (and I do not use clamps). The hose and fittings must be matched and rated for the PSI you are running. I never had a leak.

 

??? Sorry these are pressure fitted lines. There's no clamps here. You tighten the fitting and your done. Not sure on what type of system you have, but this doesnt apply to me at all. If the fitting is bad (theres a seal inside), it leaks.

 

I have the Greddy oil cooler too. The only thing I can remember being a problem was that the o-rings on the an- fittings kept getting pinched.

 

You need zip ties!!!



(Link back to jeffie's diy)
https://my350z.com/forum/engine-driv...r-install.html

 

Zip ties??
I have braided lines w/ pressure fittings. I'm waiting for Greddy to send a new line with the fitting attached. I belive its the a bad seal.

 

Bad seal for sure. Greddy produces good stuff but they're not perfect. Glad theyre sending you a new line.
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I use
Aeroquip socketless hose w/ barbed fittings. Dummy proof.

 

I use
Aeroquip socketless hose w/ fbarbed fittings. Dummy proof. Don't know what you are using but my setup doesn't leak.

 

Thanks.. 2 times..

 

Zip ties FTW!

 

ya like a zip tie is gonna hold 100psi of oil pressure if that line gets loose....