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oil cooler thread sealant.

NYTOM said:
I probably wouldn't use it myself but just wondering, why not fuel lube? :confused:
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You will find many people that swear by the stuff, you will find many people that replaced it with something else, that DID NOT leak!

loctite 561 = no leaks

loctite 567 = no leaks

EZ-turn / Fuellube = easy removal of fitting to apply THREAD Sealant!
 
Permatex#2

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 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.
 
pilotkms said:
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?
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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
 
pilotkms said:
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?
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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.
 
Just so I get this correct, I would use 567 on pipe threads and fuel lube on flared threads. Is that correct?
 
6adan said:
Just so I get this correct, I would use 567 on pipe threads and fuel lube on flared threads. Is that correct?
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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.
 
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