which rtv to use?
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Elder User
Joined: Sep 2003
Posts: 892
Likes: 3
From: Quinton NJ
Use the Ford stuff or Wacker T-95 RTV, the company that makes the Ford stuff. Most other sealants (RTV) will cause the engine oil to aerate...not good for our engines' injectors.
I agree with ^Jim^, it's the only sealant I use for everything. That stuff is virtually indestructible and will hold even after the bolts have been removed....gorilla glue
.
I agree with ^Jim^, it's the only sealant I use for everything. That stuff is virtually indestructible and will hold even after the bolts have been removed....gorilla glue
.I know not all rtv are the same. The gray stuff from Ford is just some really good, sticky stuff and I personally won't use anything else for stuff on the motor.
I don't know or care what's in it, or the fact it has Ford on the tube, but it is good stuff. I have been told by others that have used regular RTV on the oil pan and it didn't last. Not first hand knowledge, just what they told me.
There's an engine builder here that has some even stickier stuff, not sure what it is, but they actually lifted a V-8 Mack motor off the chassis trying to pull the intake off the motor that was only held on with his rtv.
I don't know or care what's in it, or the fact it has Ford on the tube, but it is good stuff. I have been told by others that have used regular RTV on the oil pan and it didn't last. Not first hand knowledge, just what they told me.
There's an engine builder here that has some even stickier stuff, not sure what it is, but they actually lifted a V-8 Mack motor off the chassis trying to pull the intake off the motor that was only held on with his rtv.
I was going to tell you that I got it from a Proctologist but decided against it. 
It's a gizmo I made up to check for air leaks, (Boost). I remove the 6637, hook it to the boot, apply air pressure through a regulator valve and gauge and use soapy water and look for bubbles. I charge the system with approximately 25 #
Works great.
Rog
It's a gizmo I made up to check for air leaks, (Boost). I remove the 6637, hook it to the boot, apply air pressure through a regulator valve and gauge and use soapy water and look for bubbles. I charge the system with approximately 25 #
Works great.
Rog
hey chris,
i just got done reasealing my plenums on my 97 5 days ago and i used black RTV silicone with no troubles. i just put 2 small beads of silicone all the way round and let it set up for 15-20 mins before i put them on the truck. they must have had a small leak because my boost went up 3-4PSI.
good luck!
mitch.
also... why did you have the oil pan off?
i just got done reasealing my plenums on my 97 5 days ago and i used black RTV silicone with no troubles. i just put 2 small beads of silicone all the way round and let it set up for 15-20 mins before i put them on the truck. they must have had a small leak because my boost went up 3-4PSI.
good luck!
mitch.
also... why did you have the oil pan off?
Perhaps that's what I need for the differential pan. Changed the gear oil in it and it leaks. First I used the orange stuff and it leaked. Next I used the gray stuff from the local parts house. Let it sit for about an hour before bolting it up, and I noticed I have a small leak again. I'll try the ford stuff next.
Post Fiend
Joined: Oct 2003
Posts: 5,903
Likes: 1
From: MICHIGAN
Because of this thread I have been doing some more research. I can't find anything re "Wacker T-95 RTV" All references refer to "Wacker T-442 RTV" IN #1812376C92
Possibly there has been a number change. Anyhooo, I found out that the Ford or Wacker is an epoxy RTV, does not allow the engine oil to foam when in contact and is by far a superior sealant with no equal.
I was unable to find a price on the Wacker product but I would imagine that International will supply it at your request.
I also found a couple of "Anti-foaming agents to add to your oil that will counter RTV reaction should you decide to use another RTV:
Fleetrite CH1824392
Lubrizol 888
Rog
Possibly there has been a number change. Anyhooo, I found out that the Ford or Wacker is an epoxy RTV, does not allow the engine oil to foam when in contact and is by far a superior sealant with no equal.
I was unable to find a price on the Wacker product but I would imagine that International will supply it at your request.
I also found a couple of "Anti-foaming agents to add to your oil that will counter RTV reaction should you decide to use another RTV:
Fleetrite CH1824392
Lubrizol 888
Rog
The official name here on FTE is 'Jose Putty'. Rubber duck named it after ROENTGEEP (Jose)
Look here, scroll down the page to find it:
https://www.ford-trucks.com/forums/7...-be-fixed.html
FOREIGN GURU
Joined: Jul 2006
Posts: 7,655
Likes: 7
From: Celaya, Gto. MX
Rog, you're probably right on the part number for the Wacker RTV. Been a while since I ordered a bunch.
The official name here on FTE is 'Jose Putty'. Rubber duck named it after ROENTGEEP (Jose)
Look here, scroll down the page to find it:
https://www.ford-trucks.com/forums/7...-be-fixed.html
The official name here on FTE is 'Jose Putty'. Rubber duck named it after ROENTGEEP (Jose)
Look here, scroll down the page to find it:
https://www.ford-trucks.com/forums/7...-be-fixed.html
I almost forgot that.
..................... 
Senior User
Joined: Oct 2006
Posts: 332
Likes: 0
From: Emmett, ID
hello all. will be putting my oil pan, and intake plenums on in the next few weeks. should i use the grey ford rtv or the black stuff from the fel pro gasket kit? any body ever use anything other than the grey on their oil pan? dont wanna have to pull it apart next year 
thanks for the info
thanks for the infoI have used "The Right Stuff" on Transmissions Pans, Oil Pans, Water Pumps etc. and have had very good luck....
Post Fiend
Joined: Mar 2006
Posts: 7,841
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From: Vacaville, Ca
Neal, that is the cleanest diesel engine and compartment I have ever seen. I especially like the turbo in the straight ahead position. (lack of better words) You have done an awesome job on that truck.
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Joined: Jul 2001
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From: Marble Falls, Texas
Thank you Jim for clearing that up. All this talk of some grey RTV...the only one I know of is the Jose Putty.
Chris, use the Ford RTV, $24 is a small price to pay for piece of mind.
Chris, use the Ford RTV, $24 is a small price to pay for piece of mind.
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Joined: Sep 2003
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From: North East Ohio
Leave it to Cody to come up with that name. 
And it is like putty...
And it is like putty...
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Post Fiend
Joined: Mar 2007
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From: Johnson City, TN.
I now have gotten rid of that ugly fuel bowl in place of a small regulator. It makes look at little cleaner now and you can literally see in the valley. Now I have to keep that clean as well.
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