Leaking oil cooler fittings on Z1 kit

Originally Posted by obender66

Hi all,

I tried to get feedback from Z1 on the issue with no response to multiple messages. So I have to turn to the masses now
I had Z1 oil cooler installed last week by very reputable local shop. Within 30-40km of driving I got a huge oil leak which ended up on my parking floor and sprayed on exhaust(it was smoking!)
Next day I raised the car and located the leaks. Two of the fittings were leaking-as indicated by arrow, where angled elbow goes into the nut. With engine running, leaks were like from running faucet-leaving trail of drops behind the car.

One at the filter plate and one at cooler itself. NOT the threads. I started tightening them little bit by bit-took 3 retightening/test drive sessions to eliminate constant hanging drop. After about 2 hours of city driving this week I rechecked it again-same places still had oil "sweat" and drops on the undertray. Now, they are damn tight and I am afraid that I start breaking things.
Car is built to be track driven and I cannot afford ANY indication that fittings are leaking, even the tiniest bit.
I am considering having completely new hoses built with Aeroquip fittings and hoses to ensure that components match. I am worried though that threads on fittings will not match fittings on the oil cooler/adaptor plate. Will they?
Is there another solution? $ is secondary consideration, I want to have it done right.

Thank you for any input!
Alex

This is direct link to the image:
https://www.flickr.com/photos/sashaa...in/dateposted/

Originally Posted by obender66

It is wiped down. It leaks only during driving, not at idle or when engine is shut off No, it does not leak at threads, compression spot or sandwich plate. It leaks at angled fitting itself-I guess there's an o-ring inside or something.

Thank you,
Alex