Sealing up your engine case

pringa8 Seriously Crusin Dubber

132 posts · joined Feb 2006 · 16 Feb 2006, 10:50 am

#456713

I thought I would ask you drag racing guys as your engines would be put under a lot more stress than a vee engine (given the limitations put in place).

Can you tell me what sealant you use when closing up your case? I'm not having much luck with keeping oil in the case! It's a new magnesium case so age isn't an issue. I'm wondering if I'm using the right sealant for a racing application?

Any advice would be great. Cheers

vw54 Administrator Always Waiting 4 Friday

16,723 posts · joined Aug 2002 · 16 Feb 2006, 12:30 pm

#456741

Cureall good stuff

I read it on FACEBOOK so it must be true

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Menangler Custom Title Time!

1,991 posts · joined Aug 2002 · 16 Feb 2006, 9:55 pm

#456959

non hardening Permatex, small white bottle red lid.

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71EJVan Officially Full-On Dubber

352 posts · joined Aug 2005 · 17 Feb 2006, 12:47 pm

#457138

Hylomar
Similar to permatex

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1303Steve Scirocco Rare

8,650 posts · joined Aug 2002 · 17 Feb 2006, 2:00 pm

#457153

Hi

I like Curil, its made by Elring the VW gasket supplier. Make sure you clean the mating faces with thinners to remove old sealant etc and file down any nicks around the case outer edge from rough handling.

Steve

koolkarmakombi enkarmarising

2,078 posts · joined Jun 2003 · 17 Feb 2006, 6:12 pm

#457195

check the library on type2.com

I use this german goo made from the thighs of... nonono wrong forum its a curil product.

there is discussion about the cotton thread wrapped around the sealing faces, I reckon its not a good move.

If you are worried about the seal spot face the case to use bigger nuts.

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plough Casual Dubber

49 posts · joined May 2005 · 18 Feb 2006, 12:23 am

#457282

I was told by a a vw trained mechanic in Rocky to use only Curil K2. I did as I was told and never had a problem. Paintakenly cleaned mating surfaces etc as mentioned previously.

Glenn

shiftyvw Wolfsburg Wizard

523 posts · joined Sep 2002 · 18 Feb 2006, 8:04 am

#457301

I was always told and used permatex non hardening, but im going to silicone based sealant now as thats what ive seen work better than permatex on porsche 911 motors. The secret with silicone is how it is applied and what type of silicone you use, as there are so many types. Applied properly it wont bead off and get in your oil system etc. The type used on the porsche motors was Wurth brand and red in colour, cant remember the number. I tried a permatex or loctite grey silicone on my latest motor so ill have to see how it goes. Id say permatex is more idiot friendly than silicone.:P

testing 1 2 3...

pringa8 Seriously Crusin Dubber

132 posts · joined Feb 2006 · 18 Feb 2006, 3:09 pm

#457376

So many options.... thanks for the ideas guys!

dangerous 23 Windows of Awesome

5,901 posts · joined Jan 2005 · 18 Feb 2006, 5:29 pm

#457389

Don't use silicone on case halves.
It holds the case appart (I have measured .002") and makes the crush on the bearings incorrect....doesnt leak though.
My favorite is Curil non hardening, and permatex and hylomar are great too, some are a little messy though.
The factory never used it, so you don't need to.

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shiftyvw Wolfsburg Wizard

523 posts · joined Sep 2002 · 19 Feb 2006, 8:28 am

#457464

Never heard about holding the case halves apart, makes sense though. I only apply it super thin, ill have to see what gap i end up with. That said ive never had a problem with permatex!

testing 1 2 3...

pringa8 Seriously Crusin Dubber

132 posts · joined Feb 2006 · 19 Feb 2006, 2:13 pm

#457518

dangerous wrote:Don't use silicone on case halves.
It holds the case appart (I have measured .002") and makes the crush on the bearings incorrect....doesnt leak though.
My favorite is Curil non hardening, and permatex and hylomar are great too, some are a little messy though.
The factory never used it, so you don't need to.

The factory never made them to go to 6500 rpm on standard internals either! 😂

Thanks for the advice on the silicon, i'll make sure I definitley wont use that. I didnt know about it holding the case apart, I don't want any gaps what so ever!