oil cooler thread sealant.

[pa38112]

I used E-Z turn because it said so on the tube and have had weeping ever since. I bought new fittings to try again at my next oil change, and am planning to use 567.

[lr172]

Originally Posted by pilotkms

I think i read somewhere here in the forum that Permatex #2 was acceptable for the steel fittings into the oil cooler? Is this Not the case?

I have used this on many automotive engine applications for thread sealing with good success. Used it on several engine fittings on my RV-6, but haven't flown yet. Just don't use this for coolant applications, as alcohol will break it down.

Larry

[rightrudder]

Originally Posted by moll780

thanks all for the quick replies!
567 on the way!

Great stuff! Just wear your Hazmat suit when you apply it! Many pages of scary safety warnings accompanied my tube.

[Neal@F14]

Originally Posted by pilotkms

I think i read somewhere here in the forum that Permatex #2 was acceptable for the steel fittings into the oil cooler? Is this Not the case?

It's been on my RV-6 oil cooler fittings since 2003 and no leaks yet. Also was used on my friend's RV-8 when we finished it in 2010.

[6adan]

Just so I get this correct, I would use 567 on pipe threads and fuel lube on flared threads. Is that correct?

[krw5927]

Originally Posted by 6adan

Just so I get this correct, I would use 567 on pipe threads and fuel lube on flared threads. Is that correct?

Nothing gets used on the threads of flare fittings or on the flared tube surface itself. Just tighten to spec.

Fuel lube only for lubricating fuel system o-rings like on your fuel caps and such. It can also make a handy temporary "glue" when you need to stick a washer and/or nut to your finger to get onto a bolt in a hard-to-reach location. But that's about it.