what's the best type threadlocker for upgraded PCV systems with the -an fitings?

i was thinking about the Locktite 545 or just pain Blue locktite?

 

The an flare fittings seal themselves and do not require any sealant. I would not use any locktite on them.

Only tapered pipe threads use sealant.

 

http://www.permatex.com/products/Aut...ad_Sealant.htm

 

This is good for tapered pipe threads but it is not for -an flare fittings.

 

agreed, im pretty sure he is using npt-an adapters like this.

http://www.jegs.com/i/Aeroquip/023/F...rentProductId=

 

i thought -an fittings were tapered?



all fittings on the new PCV system are -8an and -10an with 90* and 45* hose ends with push-lok hose.

i also bought a bigger oil cooler and a bunch of -8an fittings,but the cooler has 1/2"npt to -8an and the rest are -8an again with 90* hose ends and the russel classic hose

i can't imagine using no sealant at all on them.

i also have some that i need to do for a home made oil cooler kit

 

they seal on the angled seat, adding thread sealer will hurt, not help. thread sealer is for npt, not an.

 

ok,thanks.

i'll only use it on the npt side