CA78 Exhaust Gasket Question

[garncarz]

I just found out that my exhaust header copper crush rings are missing. That probably explains the black schmutz on the fins behind the headers pipes!

Fortunately, I found two OEM replacements. Does anyone know the torque spec for the header nuts? Couldn't find it in the service manaual.

Thanks.

[48lesco]

Just snug them down evenly as you crush the seals, I don't think there's a torque spec. You can always tighten a little more later.

[conbs]

Chuck is right about snugging the header flanges.

Jensen put up a really good post on tightening the whole exhaust system so no unnecessary stress results. Do a search and find it. It might save you from cracking a muffler mount.