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BritishV8 Forum

General Category => Engine, Transmission, & Rear Axle assy. => Topic started by: NixVegaGT on December 15, 2008, 12:31:36 PM

Title: Rear Main Cap sealing.
Post by: NixVegaGT on December 15, 2008, 12:31:36 PM
Sealing the crossed slots in the rear main bearing cap on the late block. Do I just use high temp RTV there??
Title: Re: Rear Main Cap sealing.
Post by: BlownMGB-V8 on December 15, 2008, 04:20:52 PM
I'd use "Right Stuff" Nick. It isn't like it's got to come back apart anytime soon.

Jim
Title: Re: Rear Main Cap sealing.
Post by: spridget on December 15, 2008, 04:27:21 PM
NixVegaGT Wrote:
-------------------------------------------------------
> Sealing the crossed slots in the rear main bearing
> cap on the late block. Do I just use high temp RTV
> there??


Thats what we are doing on a 4.0 Stroker.
Title: Re: Rear Main Cap sealing.
Post by: NixVegaGT on December 16, 2008, 08:27:17 AM
This stuff?:

http://www.permatex.com/products/Automotive/automotive_gasketing/gasket_makers/auto_Permatex_the_Right_Stuff_Gasket_Maker.htm

I think this might be what was in there before. It was black... Hmmm. This is what I have:

http://www.permatex.com/products/Automotive/automotive_gasketing/gasket_makers/auto_Permatex_High-Temp_Red_RTV_Silicone_Gasket.htm
Title: Re: Rear Main Cap sealing.
Post by: BlownMGB-V8 on December 16, 2008, 09:06:00 AM
I buy the 2 pack with the caulking gun. About $20 and lasts a long time. Don't mess with the aerosol, it's got bubbles and the nozzle clogs and is hard to clean out. With the caulking gun you just squeeze out a nib before you put it away, pull that out next time and go. (unless you store it for months) I just flat guarantee you it'll out perform any rtv you can get your hands on. Doesn't mind oil either. No way you'd get me to use rtv inside an engine.

Jim
Title: Re: Rear Main Cap sealing.
Post by: Moderator on December 16, 2008, 11:13:00 AM
I like "Right Stuff" in the caulking gun too. Seems to work very well. (I used it when I tore this stuff apart to change a rear main seal.) It's much easier to use than toothpaste-style tubes.
Title: Re: Rear Main Cap sealing.
Post by: V8Tech on January 13, 2009, 05:21:33 AM
Forgive me if I have missed something .. but why do you not just use the crucifix seals that LandRover supply .. I have never had a problem with them sealing?

Shaun
Title: Re: Rear Main Cap sealing.
Post by: BlownMGB-V8 on January 13, 2009, 08:26:12 AM
Sounds like a good suggestion Shaun, I for one have never seen those, having only dealt with Buick and Olds blocks. Apparently that is yet another difference. Nick's engine is something of a hybrid I believe, with Buick heads and crank and a sleeved Rover block. I'd guess he has it together by now, and if he used the sealant we recommended he'll have no problems. But if not, it sounds like those seals would be a good idea.

Jim
Title: Re: Rear Main Cap sealing.
Post by: V8Tech on January 22, 2009, 04:28:38 AM
In case you still need some ... the LandRover part number is LUN000010 ...

Shaun
Title: Re: Rear Main Cap sealing.
Post by: Grover on April 05, 2016, 08:10:42 AM
Hello, first post...
I have a leak coming from the rear bearing block. I believe the cause is the crucifix seals.
The engine is in the vehicle and is running great. I'd rather not pull the engine to fix this small issue.
My question is, can I remove the rear bearing block and replace the two crucifix seals without disturbing the rear main seal nor the bearings?
This is for a Rover EFI 3.9L V8

Cheers...
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