Too much RTV sealant squeezed out on the inside of my front diff cover. - Jeep Wrangler Forum
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Old 01-18-2020, 07:45 PM
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Too much RTV sealant squeezed out on the inside of my front diff cover.

On the rear diff i didn't have an issue.
Used Permatex Gear Oil RTV Sealant on both the front and rear. Hand tightened after I made my sandwich...waited an hour then torqued them down in a diagonal pattern. Waited about 14-16 hours before putting fluid in.

On the front ......the tie rod was distracting me and I failed to get my bolts lined up initially so I moved the diff cover around a bit when trying to make that sandwich.

I guess I will be doing this over again in the morning after it dries.

I did the rear about a week ago. No issues. No leaks. I felt like I put the same size bead on the rear ...in fact I know i did. I used the same nozzle.

Good thing about these AEV diff covers is....I can see my mistake.

AEV said to use the sealant liberally...so I obliged.

Permatex - 10 Most Common Gasketing Mistakes








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Old 01-18-2020, 07:56 PM   #2
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Too much RTV sealant squeezed out on the inside of my front diff cover.

Try Permatex The Right Stuff. From your pics it looks like you use quite a bit more than I do. I just run a single bead around. Now the lube locker fanboys are going to jump in.
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Old 01-18-2020, 08:07 PM   #3
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I use Permatex Gear Oil RTV on my PR44. You don't need much at all - do not apply liberally. Run a VERY small bead (like 1/16") all around and make sure you go around each bolt hole. There is no need to wait for it to set up before final torque - I have no idea why people say to do that. Put it on and torque to spec. I always wait overnight before adding oil just to be sure the RTV cures. If you do it right, you will just barely be able to see the RTV at the joint after the bolts are tightened.

Get yourself a Valco Tube-Grip. It makes applying a nice even bead of RTV easy.
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Old 01-18-2020, 08:17 PM
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Get yourself a Valco Tube-Grip. It makes applying a nice even bead of RTV easy.
If I had know about this I would not have used a bigger bead. Lesson learned.
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Old 01-18-2020, 08:23 PM   #5
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Lube Locker is the only way to go, and almost fool proof!
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Old 01-18-2020, 08:26 PM   #6
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Right on schedule, 41 minutes in.
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Old 01-18-2020, 08:30 PM   #7
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And she replied.... "that's way too much caulk"
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Old 01-18-2020, 08:44 PM   #8
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lube locker is the only way to go, and almost fool proof!
x2!
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Old 01-18-2020, 08:48 PM   #9
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Too much RTV sealant squeezed out on the inside of my front diff cover.

There’s no debate that RTV is superior for sealing. But, if it’s too complicated for the user then LL.
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Old 01-18-2020, 09:06 PM
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I just realized that internal squeeze out is around the bolt holes.
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Old 01-18-2020, 09:38 PM   #11
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I just realized that internal squeeze out is around the bolt holes.
That’s one of those things where you’ll get better at it every time you do it. Not bad for a first effort!
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Old 01-18-2020, 09:49 PM   #12
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The Stuff uses a standard caulking gun which makes it easy to get the right bead size. I use a higher end gun, not the cheapo ones and that makes any job go much smoother.
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Old 01-18-2020, 11:55 PM
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The Stuff uses a standard caulking gun which makes it easy to get the right bead size. I use a higher end gun, not the cheapo ones and that makes any job go much smoother.
Tomorrow morning it is the The Right Stuff for me.

Controlling the bead size with a caulk gun seems like the way to go,

immediately go back into service.
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Old 01-19-2020, 01:00 AM   #14
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Lube locker.../thread
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Old 01-19-2020, 07:40 AM   #15
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And she replied.... "that's way too much caulk"

That’s right! But, if you don’t know how to use your caulk you might need a lube locker.
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Old 01-19-2020, 07:28 PM
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The Permatex Right Stuff was not on the shelf @ Advanced Auto Parts.

It was in the back.

Glad I switched to it. It was much easier to deal with using a caulk gun.

I did wait two hours before I filled it.....better than 24 hours.

This is what i looked like when I pulled the cover.





What a mess......




After...





I basically used the smallest bead the nozzle would allow after cutting the end @ 45°

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Old 01-19-2020, 10:05 PM   #17
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I used the Lube Locker neoprene gaskets rather then RTV. Lifetime use if you look after them. But good tip with the caulk gun.


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Old 01-20-2020, 03:25 PM   #18
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On the front ......the tie rod was distracting me and I failed to get my bolts lined up initially so I moved the diff cover around a bit when trying to make that sandwich.
I used a couple of these to get the cover on without making a mess of the rtv while lining up the holes. You could also use threaded rod.
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Old 01-20-2020, 06:32 PM   #19
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I used a couple of these to get the cover on without making a mess of the rtv while lining up the holes. You could also use threaded rod.
^^This is an awesome tip. I do this as well, but made mine from longer bolts with the heads cut off.
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Old 01-20-2020, 06:42 PM   #20
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I know lots of people use The Right Stuff, but when I contacted Permatex a little bit ago, the only RTV they recommended for gear oil with friction modifiers was their Gear Oil RTV Gasket Maker.
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Old 01-20-2020, 07:02 PM
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I know lots of people use The Right Stuff, but when I contacted Permatex a little bit ago, the only RTV they recommended for gear oil with friction modifiers was their Gear Oil RTV Gasket Maker.



They should probably change their documentation.
I have their Gear Oil RTV on the rear and the Right Stuff on the front. I couldn’t wait on the front to dry and the caulk gun made it easier to apply quickly. I prefer the Right Stuff now but if the Gear Oil RTV came in caulk form I would probably use it.
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Old 01-21-2020, 11:41 AM   #22
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^^Yup, I've seen that, but not all differentials require a gear oil with friction modifiers.
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Old 01-21-2020, 12:18 PM
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I prefer the Right Stuff now but if the Gear Oil RTV came in caulk form I would probably use it
lol.

Apparently it does.

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Old 01-21-2020, 12:48 PM   #24
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Too much RTV sealant squeezed out on the inside of my front diff cover.

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^^Yup, I've seen that, but not all differentials require a gear oil with friction modifiers.

Correct, my duffys with lockers uses Torco oil straight up.
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Old 01-21-2020, 03:27 PM   #25
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Permatex The Right Stuff Black
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