Should I use Thread Sealant, or Thread LOCKER on my timing belt pulley's, idlers, etc

[clarkerussell]

I'm about to reassemble by timing belt items, and I need some advice. Should I be using thread SEALANT, or thread LOCKER? Permatex offers both. I picked up the High Temperature Thread Sealant, but now I'm thinking I should have gotten LOCKER.

Thoughts?

[North Ursalia]

Blue threadlocker is great because it is a good blend of strength and the ability to remove the damn bolt/nut later on down the road . Something on there is always better than nothing, but I've always used the blue threadlocker on things that should stay put.

[Crazy_pilot]

*Shrug* Subaru didn't see a reason to use it when they built the car, and I haven't seen any reason to doubt that philosophy. That being said, it's not a bad idea, it certainly gives peace of mind.

As stated though, use blue thread lock. Red only belongs on things that you never intend to take apart again, or that will be subjected to abuse and absolutely must not come apart.

[clarkerussell]

Thanks, I ended up using the white thread sealant. In retrospect, I don't think it'll do anything as it appears to be designed to seal threads to keep fluid from leaking and there are no fluids behind these bolts. That being said, I don't see how it would hurt anything, and Subaru didn't use it to begin with.

Thanks for the advice guys.

[huck369]

I actually use a dab of paint on the bolt threads when I install the idlers (and crank Pulley bolt) Never had one back out, and they are easy to break loose the next time you need to remove them.