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-   -   Best gasket dressing or no gasket dressing or just rtv (http://www.competitiondiesel.com/forums/showthread.php?t=200057)

Diesel92 05-01-2018 05:46 PM

Best gasket dressing or no gasket dressing or just rtv
 
My timing cover to block leaks and oil pan leaks I've tried just the gasket and it leaks I've tried the gasket and high flex and that was worse as I thought it would be. I've also tried the gasket and rtv and want a fan but that seem to almost work. So what's everyone using to keep these things from leaking. Yes everything Is flat and clean when i put it together. Thanks in advance

95cummins5.9 05-01-2018 06:45 PM

Gray rtv thin coated on gaskets.

Destroked 450 05-01-2018 11:30 PM

The Right Stuff I here is really good

zfaylor 05-02-2018 06:25 AM

Permatex Aviation Sealant is some nasty stuff but works really well on gaskets and seals.

coorsman2005 05-02-2018 06:38 AM

Like said above I always use a very thin coat of the gray and put the gasket on.

Diesel92 05-12-2018 07:49 PM

Any body have experience with high tack from loctite. Or the right stuff

Summit_Rider 05-12-2018 07:56 PM

High tack works great on paper gaskets. It’s a pain if you ever need to replace the gasket again, but never had a leak using it.

Diesel92 05-13-2018 02:05 AM

So its between the right stuff and high tack. Any more input from anyone?

AsTroSS 05-13-2018 02:15 AM

Why the hell you need sealant, when you have a gasket?

Prepare the surface,use gasket and case closed

:stab:

AGR1791 05-13-2018 06:20 AM

Right stuff is heavy duty stuff. We use it to during emergency repairs at the track or something that needs to 100% not leak. It will really glue something on so be prepared for that when you remove it.

turbo2387 05-13-2018 07:40 AM

Quote:

Originally Posted by AsTroSS (Post 2667690)
Why the hell you need sealant, when you have a gasket?

Prepare the surface,use gasket and case closed

:stab:

Agree 100% a gasket is the sealant. Trying to make 2 thing donthe same job at the same time is asking for a leak. Rtv is the devil. High tack is wonderful stuff. It works best when gluing 2 case halfs together like on a VW. Or if you have a pita thin paper gasket that wont stay in place while you assemble. I cuss rtv everytime i see it. 99 to 1 it was used by a guy that didnt know how to fix the problem rght the first time.

TheBac 05-13-2018 09:22 AM

GM gray RTV, 12378521

Best sealer Ive ever used.

Burn Down 05-13-2018 01:56 PM

Lmfao, they all have there place. Rtv with a gasket is needed when the sealing surfaces have been damaged with no way to repair quickly or easily, rust pitted, warped, dished surfaces.

If surfaces are clean and square, just a gasket or gasket and spray adhesive usually will suffice.

GM gray, the Right Stuff & loctite anerobic sealent flexible and hard are some of the best I have ever used.

Problem with rtv is people use way to much...

RacinDuallie 05-13-2018 02:27 PM

Quote:

Originally Posted by Burn Down (Post 2667751)

Problem with rtv is people use way to much...

And there is usually more rtv seeping out than there is trying to seal the parts.....

Scoop it and goop it. :hehe:

TheBac 05-13-2018 02:41 PM

Amen to that, Albert.

Diesel92 05-13-2018 08:23 PM

I'm not a big fan of rtv on a gasket. I've tried just the gasket and it leaks. I've tried high flex and the gasket and that was worse. I've never used high tack and have heard this is the best stuff to use with a gasket. And that rtv should only be used by its self. I agree they all have there place. I work at deere dealership and we used everything from thread locker to hylomar to seal different components. But I'm trying to see what everyone is having the best luck with on these timing covers to the block and the oil pan

not enoughsmoke 05-14-2018 06:09 PM

Loctite weather stripping adhesive on one side and ultra black on the other side Never leaks


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