RTV Bead or Smear? - JeepForum.com
View Poll Results: On a diff. cover, do you leave the RTV in a bead, or smear it around?
Leave it in a bead 66 85.71%
Spread it around, like butter on toast. 11 14.29%
Voters: 77. You may not vote on this poll

Reply
 
LinkBack Thread Tools
post #1 of 47 Old 01-03-2007, 09:01 PM Thread Starter
robert92679
Registered User
2005 LJ Wrangler 
 
Join Date: Feb 2006
Location: Orange County, CA
Posts: 67
RTV Bead or Smear?

Just wondering, when you install differential covers, do you leave the RTV in a solid bead, or smear it around?

Do you think there are any benefits to one method or the other? Or, does it really not matter?


2005 Unlimited Rubicon
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
robert92679 is offline  
Sponsored Links
Advertisement
 
post #2 of 47 Old 01-03-2007, 09:10 PM
paultyler
Uncle Paul has spoken...
 
paultyler's Avatar
1992 YJ Wrangler 
 
Join Date: Feb 2005
Location: California
Posts: 2,544
You are suppossed to put down a bead. When you put the cover on it will spread out. If you smear you may get a leak.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


92 YJ, 35' MTR Kevlars, Klune/Dana 20, 4.88s, SYE, Rubicon D44s w/Rubicon lockers, front and rear Alloy USA chromoly shafts with 30 spline outers,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, custom cv driveshafts,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, M.O.R.E. 5/8'' boomerang shackles + 2' BL, 15lb Powertank, 4.0L TB & TB spacer, ARB Snorkel, K&N filter, rear bumper and tire rack, Rancho 9000s,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, Teraflex Bellyup,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, rock lights, RE hand throttle, M.O.R.E. roll cage,
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
, 9000lb winch with synthetic cable
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
(12voltguy.com), Dual Blue Top Optimas with
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
dual battery controller, a/c (ackits.com)

Quote:
Originally Posted by joshrad View Post
This Uncle Paul guy seems to know what he's talking about.
paultyler is offline  
post #3 of 47 Old 01-03-2007, 09:14 PM
RockRunner85
Registered User
2004 TJ Wrangler 
 
Join Date: Mar 2004
Location: Fairfax, VA
Posts: 3,333
I run about a 1/4 inch bead all the way around the cover. I go around each bolt hole, even though you really only need to go around on the inside the bolt hole.

Make sure you read the directions. Most have an hour wait time. If you do not follow the directions it will leak!!!

Most say after running the bead bolt cover in place finger tight. Let sit an hour. Then torque down bolts and fill.

The one time I was in a hurry I just tightened the bolts and filled the diff. It starting leaking 5k later.

2004 Black Rubicon w/ 5 spd

RE 3.5 SuperFlex & Front Trackbar / JKS 1.25" BL & MML / 35x12.5 MTRs on 15x8 AR-23s / Currie Anti-Rock / Jeeperman Bumpers / Rokmen Sliders / York OBA / Harbor Freight 8k Winch
RockRunner85 is offline  
 
post #4 of 47 Old 01-03-2007, 09:19 PM
BlueFlame
Registered User
 
BlueFlame's Avatar
2003 TJ Wrangler 
 
Join Date: Mar 2006
Location: Oregon USA
Posts: 8,395
It takes RTV a heck of a lot longer than an hour to set.
Agree on just snug it down and then wait, but I usually wait overnight to torque then fill.
On the other hand, I've never seen a shop wait, and they seem to seal fine...


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
|
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
|
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BlueFlame is offline  
post #5 of 47 Old 01-03-2007, 09:24 PM
kizer
Registered User
 
kizer's Avatar
 
Join Date: Dec 2003
Location: Marysville Wa. North of Seattle
Posts: 1,597
I place a bead and then smear it around to insure the entire surface has a thin coat. I torque all the bolts just a little bit less than spec then again at spec. Ive yet to wait any longer than 10minutes and Ive never had a leak.

Its never failed and since it works for me Im going to continue my method. Is it the correct method? Sounds like it isn't, but it speaks for it self.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.

1600+ Write-ups, and more

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
|
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
kizer is offline  
post #6 of 47 Old 01-03-2007, 09:32 PM
Rocky529
Registered User
 
Rocky529's Avatar
2004 TJ Wrangler 
 
Join Date: Jul 2004
Location: Park City
Posts: 13,182
Leave it in a bead, and avoid placing the bead around your holes in the cover. Gently place the cover against the differential, and hand thread all the bolts. Once you crank them down, the RTV should not smear onto the threads of the bolts and a little RTV should "ooze" out creating a seal.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


Silver Metallic finish with black dual tops - Dana 44 Rear
2.25" Suspension Lift with Old Man Emu Shocks
Performance Accessories 1" Body Lift
Daystar 1" Motor Mount Lift
Spidertrax 1.25" Wheel Spacers - 32"x11.5" MT/R Tires
Rocky529 is offline  
post #7 of 47 Old 01-03-2007, 10:01 PM
Michael_K
Registered User
 
Michael_K's Avatar
 
Join Date: Jul 2004
Location: ATL, GA
Posts: 999
Bead, otherwise you are risking bubbles.

Michael K.

DailyDrivenTJ.com
JUST For Jeep TJ Owners Around the World!
Michael_K is offline  
post #8 of 47 Old 01-03-2007, 10:21 PM
alvinl
Registered User
 
alvinl's Avatar
1998 TJ Wrangler 
 
Join Date: Dec 2006
Location: St. Louis, Missouri
Posts: 919
I have always used a bead and run it around all bolt holes. I do 1 diff, snug the bolts up finger tight then let it dry while I do the other diff. Or let them both sit while changing the tranny and transfer case fluid. Then torque down and fill. So I give them some time to dry, but not overly long. I have yet to have one leak. But now that i've said that, I bet my last diff job leaks...
alvinl is offline  
post #9 of 47 Old 01-04-2007, 12:56 AM
Materdaddy
Registered User
 
Materdaddy's Avatar
1997 TJ Wrangler 
 
Join Date: Jun 2006
Location: Oceanside, CA
Posts: 817
Bead, Bead, Bead!!!

O|||||||O

To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Materdaddy is offline  
post #10 of 47 Old 01-04-2007, 01:22 AM
UCTJ
Registered User
 
UCTJ's Avatar
1997 TJ Wrangler 
 
Join Date: Feb 2005
Location: Texas
Posts: 1,990
Put a nice even bead...not too thick it will just spooge out anyway. But a nice even bead, never had a diff on me.
UCTJ is offline  
post #11 of 47 Old 01-04-2007, 02:06 AM
Brew461
Registered User
 
Join Date: Oct 2006
Location: DA UP
Posts: 1,055
Quote:
Originally Posted by UCTJ
Put a nice even bead...not too thick it will just spooge out anyway. But a nice even bead, never had a diff on me.

Is it a concern if the RTV "spooges" a little to the inside and makes it into the carrier?
Brew461 is offline  
post #12 of 47 Old 01-04-2007, 03:21 AM
Jeremy99
Guest
 
Join Date: Nov 2004
Posts: 78
I have reusable gaskets now, but in the past I would apply a bead and spread it evenly across the sealing surface. I would then wait 3-5 mins for the sealant to "film" over (allow the exposed layer to begin to set), then I would install the cover and finger tighten the bolts. I have never allowed time before I torque down the bolts, not that it was a race to tighten them or anything. I never had any leaks. Seems like I read that method on the back of a tube of sealant one time.
Jeremy99 is offline  
post #13 of 47 Old 01-04-2007, 05:23 AM
Michael_K
Registered User
 
Michael_K's Avatar
 
Join Date: Jul 2004
Location: ATL, GA
Posts: 999
Quote:
Originally Posted by brew461
Is it a concern if the RTV "spooges" a little to the inside and makes it into the carrier?
Unless you got something sensitive like limited slip clutch, I would not worry about RTV damaging high strength steel.

Michael K.

DailyDrivenTJ.com
JUST For Jeep TJ Owners Around the World!
Michael_K is offline  
post #14 of 47 Old 01-04-2007, 07:16 AM
PeteC
Registered User
2000 TJ Wrangler 
 
Join Date: Jan 2004
Location: Oak Park, Michigan
Posts: 851
Bead.......always a bead.

Let the pressure of tightening the metal surfaces together spread the material. That is the way this stuff was designed to work. The pressures will put it where it needs to go. If you smear it on in a thin coat you may not have enough in a certain spot to fill all voids. Even cork gaskets had some give to fill voids. Actually, I was raised to use a thin bead of RTV on cork gaskets just to insure a first time seal. Overkill maybe, but hell, my dad learned that as an aircraft mechanic.

Anyway, that's how I roll.

p.s. For those that use the smear method, if it works for you, cool.

'00 TJ With toys, lift and tires.
'10 Dodge Ram 1500 Quad 4x4. Daily driver and tow rig
'05 Dodge Neon. Wifes daily driver and gas sipper.
There is no Bandaid for Stupidity
Sorry if my support of legal wheeling offends you
PeteC is offline  
post #15 of 47 Old 01-04-2007, 09:40 AM
BlueFlame
Registered User
 
BlueFlame's Avatar
2003 TJ Wrangler 
 
Join Date: Mar 2006
Location: Oregon USA
Posts: 8,395
I think the answer to getting a leak free seal is Clean Surfaces.
I don't think beading, smearing, paper gaskets or rubber gaskets matters so much, but good clean surfaces for the sealing medium to seal to is important - even more so with silicone than with gaskets.


To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
|
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
|
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
BlueFlame is offline  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the JeepForum.com forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid e-mail address for yourself.



Email Address:
OR

Log-in











Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Jeep Forums Replies Last Post
reset my bead mattman8706 TJ Wrangler Technical Forum 4 03-18-2007 08:44 AM
which holds the bead better jeepinMatt YJ Wrangler Technical Forum 1 07-27-2006 01:01 PM
Loosing a bead? Break a bead? Baotchi TJ Wrangler Technical Forum 6 04-25-2006 01:48 PM
pop a bead w/hilift? dakuda TJ Wrangler Technical Forum 2 06-28-2004 07:00 PM
bead leaks buzzbomb YJ Wrangler Technical Forum 3 02-10-2003 08:34 PM

Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome