Diff gasket, dealing compound?

[Johno]

Hi all, I've just opened up my diff to replace oil seals and output bearings as one is not silky smooth. The question is should a gasket compound be used for the diff casing and indeed the output flanges. I'm thinking not so far. Anyone got the full sp?

Cheers Johno

[Colin Lindsay]

Never used one on the casing, but for the output flanges, where there is no gasket at all, a smear wouldn't hurt.

[Pete Lewis]

the main case split  has gasket 114749 @55p

the output have never show as having a gasket 

I recommend a smear of loctite 574    we did lots of tests for sealer back in the days of production and this stuff is bullet proof

easy to use , and doesnt need a gasket on any hard faces 

not using a gasket on the front/ rear halves will upset the alignment of the short shafts to the diff carrier by the thickness of the gasket 

Pete

 

[Johno]

Pete hi you mention in another topic a different grade of oil for the diff. I can't find the topic now something to do with trunions. What grade makes for a quiet diff?

Johno

[NonMember]

The standard diff oil spec is EP80 for a dry fill, EP90 for a top-up. Some people recommend EP140 for hard use, and this can also help quieten a noisy diff.

[Clive]

Worth mentioning the spec of the oil should be GL4 (unless you do some proper research and find a yellow metal safe GL5 oil)

Moss sell a 85-140 oil that they claim can quieten a diff (with the caveat that it does not mean the diff has been fixed! but a diff with slight noise will stay that way for 1000's of miles) It is a GL5 spec, but clearly states it is yellow metal safe. Other such oils are available elsewhere. However, I have a bottle of this stuff waiting to go in my diff, when I get round to it!

https://www.moss-europe.co.uk/dynolite-oils/dynolite-gear-oils/dynolite-no-noise-ep-85w-140-1-litre-ggl823310.html

[Colin Lindsay]

16 hours ago, Pete Lewis said:

 

not using a gasket on the front/ rear halves will upset the alignment of the short shafts to the diff carrier by the thickness of the gasket 

Pete

 

I never used a gasket SEALER. I don't mean I never used a gasket.

[Pete Lewis]

Colin not you   just a thought for anyone not using a joint

Pete 

[Colin Lindsay]

I just read my initial post and thought... maybe it's a bit vague / ambiguous... I didn't want anyone thinking that 'as he doesn't use one, I can do it too!' 

[Johno]

Had no intention of not using the gasket, just asking about compound.

[Iain T]

4 hours ago, Pete Lewis said:

anyone not using a joint

Pete 

I prefer alcohol🍻🥃🥂

[Bordfunker]

I went with belt and braces.

I used Loctite 5980 sealant.

Anyones guess how it will hold though as it’s still sitting on the shelf awaiting completion of the chassis.

Karl