Guilt-Toy Posted June 18, 2008 Share Posted June 18, 2008 I got one of the light weight 19 row blue oil cooler kits, and oil keeps leaking from it. I have tried to replace the o rings with some good quality wurth ones which made no difference. I then got hold of some locktight paste stuff (hydrolic thread sealant) which is suppossed to hold 1000psi once cured AND IT STILL LEAKS. Does anyone have any ideas on how i can stop this from leaking? should i just use thread tape? Its leaking on the fittings that screw onto the sandwitch plate on the block. Has anyone had this issue before? how did you fix it. I hate oil leaks more then anything else, leaking 300v chrono is driving me INSANE!!!! Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/ Share on other sites More sharing options...
SECURITY Posted June 18, 2008 Share Posted June 18, 2008 even if you ask justjap themselves, they'll tell you to use thread tape on pretty much all of their parts that are meant to hold oil pressure. ive tried the justjap oil pressure gauge which leaked until i used thread tape on it, same with the oil cooler kit i had. Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3955161 Share on other sites More sharing options...
Guilt-Toy Posted June 19, 2008 Author Share Posted June 19, 2008 if i don't get a reply soon, i won't need a reply or another skyline part EVER!!!! grrrrr Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3955173 Share on other sites More sharing options...
Guilt-Toy Posted June 19, 2008 Author Share Posted June 19, 2008 This makes me feel a little better. But still pissed off. Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3955241 Share on other sites More sharing options...
Beer Baron Posted June 19, 2008 Share Posted June 19, 2008 yes, chinese oil cooler kits leaking is nothing new. about the only ways out are to try and seal it with thread tape (not a very nice solution), or just chuck it out and buy a nicer kit like one of the japanese ones. i have 2 trust kits at the moment on 2 of my cars and neither has leaked so much as a drop. ever. and no thread tape, or goo, or o-rings needed. just bolt it on and away you go. if you use thread tape be careful not to let it get into the lines etc. Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3955261 Share on other sites More sharing options...
swanny180 Posted June 19, 2008 Share Posted June 19, 2008 Ive basically also heard whats already been said in the thread. That the Just Jap oil cooler kits are well known to require thread tape in most cases to get a good seal, or else you can have problems with leakage. Hope you get it sorted soon mate!! Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3955386 Share on other sites More sharing options...
hanyou Posted June 19, 2008 Share Posted June 19, 2008 ahhhhhhh i was just about to buy the superlight 13 row kit so im assuming i shouldnt now lol Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3955398 Share on other sites More sharing options...
Dose Pipe Sutututu Posted June 19, 2008 Share Posted June 19, 2008 go return it, money back gurantee I think? but most of JustJap parts are chinese crappy knock offs... Save yourself the headache and go get a Permacool relocation kit & thermostat & and quality B&M core. Same price-"ish" but 300% the quality! Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3955599 Share on other sites More sharing options...
GeeTR Posted June 19, 2008 Share Posted June 19, 2008 (edited) Lol @ another leaking china kit GT - apart from the poorly made / designed block adapter, how do you find the cooler core itself? Does it look reasonable? Outa interest, what type (standard) of fitting is leaking? Theres not a simple 370 AN / 450 SAE / JIC mix up?? Edited June 19, 2008 by GeeTR Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3955700 Share on other sites More sharing options...
frozenwaffles Posted June 19, 2008 Share Posted June 19, 2008 the fittings are all fine. mine leaked when i first installed it in the exact same place. just make sure you do everything up super tight! my kit is perfect and its all looking very mickey mouse! i think they are great... its not like they are actually that cheap anyway... Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3956069 Share on other sites More sharing options...
Guilt-Toy Posted June 19, 2008 Author Share Posted June 19, 2008 Lol @ another leaking china kit GT - apart from the poorly made / designed block adapter, how do you find the cooler core itself? Does it look reasonable? Outa interest, what type (standard) of fitting is leaking? Theres not a simple 370 AN / 450 SAE / JIC mix up?? LOL.. english please??? the fittings are all fine. mine leaked when i first installed it in the exact same place. just make sure you do everything up super tight! my kit is perfect and its all looking very mickey mouse! i think they are great... its not like they are actually that cheap anyway... I took it to my mate at Turbotechnics and he is going to machine the fittings flat where the O ring goes and replace it with copper washers. Appart from that the rest of the kit looks OK except for the really long long oil lines. Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3956125 Share on other sites More sharing options...
GeeTR Posted June 19, 2008 Share Posted June 19, 2008 (edited) Lol @ another leaking china kit GT - apart from the poorly made / designed block adapter, how do you find the cooler core itself? Does it look reasonable? Outa interest, what type (standard) of fitting is leaking? Theres not a simple 370 AN / 450 SAE / JIC mix up?? LOL.. english please??? I lol'd at you using a "china kit" I asked you about the construction quality of the core. I then suggested, that the fitting "standards" might have been mixed up, if you've swapped some of the couplers with your own; AN and JIC for example... its quiet a common mistake Edited June 19, 2008 by GeeTR Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3956946 Share on other sites More sharing options...
Finchy33 Posted June 19, 2008 Share Posted June 19, 2008 (edited) I then got hold of some locktight paste stuff (hydrolic thread sealant) which is suppossed to hold 1000psi once cured AND IT STILL LEAKS. 577? 542? Use them everyday, if that didn't seal it there must be some inherent problem with the fittings!! (Which GeeTR is getting at) Edited June 19, 2008 by Finchy33 Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3957373 Share on other sites More sharing options...
Guilt-Toy Posted June 20, 2008 Author Share Posted June 20, 2008 the problem was that the o rings were not sealing properly. Turbotechnics took the fittings off, got them machined flat so there is no groove where the O rings used to go and then used copper washers and a decent thread sealant. took it for a 250km drive last night and it did not leak a drop! Very happy about that now! Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3958585 Share on other sites More sharing options...
frozenwaffles Posted June 20, 2008 Share Posted June 20, 2008 i say bring on china! Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3959451 Share on other sites More sharing options...
Gts-t Posted June 20, 2008 Share Posted June 20, 2008 Save yourself the headache and go get a Permacool relocation kit & thermostat & and quality B&M core. Same price-"ish" but 300% the quality! Where is the best place to buy this stuff? cheers Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3959833 Share on other sites More sharing options...
hanyou Posted June 20, 2008 Share Posted June 20, 2008 ^^ id like to know as well Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3959920 Share on other sites More sharing options...
Gtrgodzilla67 Posted June 20, 2008 Share Posted June 20, 2008 i used loctite 401 thread locker, and it hasnt leaked yet lol Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3960143 Share on other sites More sharing options...
urtwhistle Posted June 20, 2008 Share Posted June 20, 2008 hmmm I used Loctite hydraulic thread sealer 569. but i never used the stock hoses as they were all too long and i didn't fit the cooler core. just don't do what i did and get new lines made up out of Dufield hydraulic hose. its just way to hard and not flexible enough. for in a engine bay. Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3960515 Share on other sites More sharing options...
9krpm Posted June 20, 2008 Share Posted June 20, 2008 Use the red thread tape from Bunning. It's a bit better than the white one If that doesn't work then try to return the kit Link to comment https://www.sau.com.au/forums/topic/224568-cooling-pro-just-jap-oil-cooler-kit-keeps-leaking-oil/#findComment-3960778 Share on other sites More sharing options...
Recommended Posts
Create an account or sign in to comment
You need to be a member in order to leave a comment
Create an account
Sign up for a new account in our community. It's easy!
Register a new accountSign in
Already have an account? Sign in here.
Sign In Now