Changing carb/manifold rubber

[Rollin]

I need to change this on my old Merc. Does any sort of sealant need to go between the rubber and metal?

[Mignon]

No but a light smear of silicone sealant never hurts.

[Rollin]

Thanks

[E-bmw]

Matter of opinion but I for one wouldn't.

The raised "rings" around the central opening are there to give your seal, if anything I would use a light smear of silicone grease but not sealant.