Thread sealant/Locker?

[EddieC]

Looking for suggestions on a thread sealer/locker that would be heat and fuel resistant and seal against bolt thread vacuum leaks in an intake system.
I am dealing with a steel bolt in an aluminum manifold in an air cooled engine, so it gets hot. Through the years the bolt has worked the alunimum a bit so it's not a really snug fit.
The main focus is sealing but I need it to stay put against engine vibrations in a vintage Brit bike.
I wasn't sure if thread locker sealed the thread space to the needed degree.

 

[gooffeyguy]

Permatex High Temperature Thread Sealant

 

[Hoesgottaeat2]

^^^^^^what @gooffeyguy said above^^^^^^

https://www.amazon.com/Permatex-27240-High-Temperature-Threadlocker/dp/B000HBNXVA/ref=asc_df_B000HBNXVA/?tag=hyprod-20&linkCode=df0&hvadid=312128326273&hvpos=&hvnetw=g&hvrand=11815911536906613863&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9005678&hvtargid=pla-568272069286&psc=1

 

[Hoesgottaeat2]

 

[Hoesgottaeat2]

That Triumph in your pic brings back memories. My pops had a 750 Bonneville back in the early 80's. Couldn't tell you what year the bike was though.

 

[EddieC]

That Triumph in your pic brings back memories. My pops had a 750 Bonneville back in the early 80's. Couldn't tell you what year the bike was though.

Thanks. Bought it new 47+ years ago. First of the "CoOp" bikes.

 

[EddieC]

Permatex High Temperature Thread Sealant

Does it set hard or remain pliable?
Due to the vacuum in the intake I am wary of something that isn't hard being sucked into the intake.

 

[EddieC]

^^^^^^what @gooffeyguy said above^^^^^^

https://www.amazon.com/Permatex-27240-High-Temperature-Threadlocker/dp/B000HBNXVA/ref=asc_df_B000HBNXVA/?tag=hyprod-20&linkCode=df0&hvadid=312128326273&hvpos=&hvnetw=g&hvrand=11815911536906613863&hvpone=&hvptwo=&hvqmt=&hvdev=c&hvdvcmdl=&hvlocint=&hvlocphy=9005678&hvtargid=pla-568272069286&psc=1

The two things are not the same.
One is sealant and the other locker.

 

[Fless]

I think this (#59235) is what @gooffeyguy mentioned, not threadlocker.

 

[bill1013]

Is retapping and installing a helicoil not an option?