RTV or thread sealant

[Mikey_Dsm]

Hey guys, I got a quick question. Should I use the white high temp permatex thread sealant, rtv, or something else to seal up the two lines tapped into my filter housing. Cleaning up some oil leaks and wanna know what you guys would use.

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[pauleyman]

Its a thread, so thread sealant. ONLY on those threads that require it. I frequently see sealant on AN, banjo, oring, etc. Do not use it there as the thread is not the sealing surface. Same goes for Teflon tape or rtv with a gasket.

 

[We're on Boost]

I would use a thread sealant, like Loctite 567 which is an anaerobic "low strength" thread sealant. And yes, only on the pipe threads that are in your picture. Not in the flare-to-cone compression fittings.

567 works fine without an activator on both "active" and "passive" metals.
I imagine Permatex makes pretty much the same anaerobic stuff but don't know which product number it would be.

 

[FIBA M - EC17PSE]

Taper threads like these BSPT ones do not require a thread sealant. Only straight threads will want a sealant.

You should be leak free if the sizes match, BSPT to BSPT, if you are using NPT in a BSPT holes then you may leak.

Any anaerobic sealant thread seal will do as long as its fairly low strength or later on you need to heat it up for removal with a torch.

 

[chrysler kid]

I always use teflon tape on the threads of the fittings for the stainless lines. If I don’t they always have a leak. They “shouldn’t” leak without tape, however the risk is over tightening the threads and causing damage.

I use thread sealer on bolts with small thread, teflon tape on the larger threaded oil fittings and lines

 

[pauleyman]

I always use teflon tape on the threads of the fittings for the stainless lines. If I don’t they always have a leak. They “shouldn’t” leak without tape, however the risk is over tightening the threads and causing damage.

I use thread sealer on bolts with small thread, teflon tape on the larger threaded oil fittings and lines

What stainless lines?

 

[19Eclipse90]

Use thread sealant on BSPT fittings. Here’s a couple snippets from the FSM:

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[chrysler kid]

What stainless lines?

The oil feed line connections

 

[pauleyman]

The oil feed line connections

Aren't those banjo?

 

[chrysler kid]

Aren't those banjo?

Not on the 2g line from the oil cooler. The banjo style is the 1g style drain from the cylinder head, the 2g has a restrictor on the turbo feed line