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Vehicle & Technical => Defender => Topic started by: R2D2 on August 01, 2008, 17:59:42

Title: Rocker gasket dry or sealant
Post by: R2D2 on August 01, 2008, 17:59:42

Hi Folks,

1984 90 2.5 diesel n/a   does the cork rocker gasket get replaced with sealant on metal faces or is it put on dry please?

Thanks

Title: Re: Rocker gasket dry or sealant
Post by: biggerlandy on August 01, 2008, 23:04:46

allways put a small bead of sealent on em

Title: Re: Rocker gasket dry or sealant
Post by: V8MoneyPit on August 02, 2008, 10:36:27

Quote from: biggerlandy on August 01, 2008, 23:04:46

allways put a small bead of sealent on em

Personally, I would suggest the opposite. The gasket *is* the 'sealant'. You would normally expect to use sealant or a gasket, not both. Many new vehicles use sealant instead of gaskets because of cheaper manufacturing costs.

The only time I would recommend using sealant on a gasket is if the surface is so badly pitted that the gasket cannot take up the irregularities. Or if the manufacturer specifies it. They don't for the 2.5 rocker cover.

Using sealant on the gasket just makes your life more difficult the next time you have to remove it!

The major cause of oil leaks in these areas, like the rocker cover, is over tightening the nuts. Cork gaskets are quite critical on being compressed correctly.

Title: Re: Rocker gasket dry or sealant
Post by: vtrdaz on August 02, 2008, 16:02:08

I agree - using sealant on cork joints can cause them to swell and leak/fall apart - put this joint on dry.

Darren