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?

 

[EddieC]

Is retapping and installing a helicoil not an option?

I suppose it could be.
I am not sure if I'm lazy or reluctant out of fear of not getting the manifold off and reinstalled without air leaks. The manifolds are secured to the head in an awkward manner that is hard to tighten the studs that hold them together. See the stud picture. The manifold goes on the left side of the stud and the collar projection presses against the manifold so there is nothing to put a wrench on to tighten it up. Double nuts used on the right side just tend to back the studs out of the head when trying to remove them.
All more than you wanted to read.
It would not be the first choice of solutions. I wouldn't attempt that in place because of the potential of getting debris in the intake tract.
Thanks for the input.

\

 

[EddieC]

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

View attachment 412748

Thanks, I got that.
The other recommendation was for a thread locker but pointed up to this sealer so that's why I noted it.
Do you know if this sealer cures hard? Is anerobic?
Maybe a test is in order.

 

[exp500]

Motoseal is another choice. Good Luck!

Permatex® MotoSeal® 1 Ultimate Gasket Maker Grey, 2.7 OZ – Permatex

www.permatex.com

 

[Hoesgottaeat2]

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

Forgive me. I too quickly posted the first one I could find without looking closely at it.