Combination Intake/Exhoust Sealing

[DanStokes]

The Benz 5 cylinder has a combination intake and exhaust gasket like my 6 cylinder Chevys had. I had a tough time getting the manifolds to seal to the head. The M-B at least is all stout cast iron but still - should I use a sealant (maybe copper RTV) on the gasket. The gasket composition looks sort of like MLS. I just bolted it up dry but I'm wondering what you guys have done.

Dan

[tardis454]

I've used Copper High Tack on just about everything for years with great success...



My wife's 94 Wrangler had 2 broken manifold studs in the head.
I got one out, the other wouldn't budge.
I (liberally) sprayed the the head, manifolds, gasket, & slammed it together.
It never leaked, ever, not even a peep & stayed that way.

My friend who owns a car garage uses it on LS exhaust manifolds.
The bolts break off in those too. He tells me they stay quiet & no come backs.

That's my <--those are copper too, sorta.

[DanStokes]

A guy on the M-B forum had the same suggestion. I've used K&W Copper Cote (same idea, I'm sure) with great success but I wasn't sure on MLS-style gaskets. I think I'll use it just to give myself some insurance.

THANKS!

Dan

[Barry Donovan]

try natural continuity first. I ran a 250 chevy, the goops are terrible.

you must be referring to diesel 5 cyl, they get away with more.