How much rust is too much in manifolds?

legendlc
Aluminum Star
Posts: 102
Joined: Tue Mar 01, 2016 6:50 pm

How much rust is too much in manifolds?

Postby legendlc » Thu Apr 04, 2019 8:11 pm

Pulled end cap off a manifold today of a 440 that has set in the boat for 10 years on blocks. Used a camera to look inside and they are pretty rusty. The question is how much is too much and what have others done for this issue?
1978 37 Double Cabin
Lake Cumberland KY

jralbert
Site Admin
Posts: 609
Joined: Fri Jul 11, 2014 9:15 pm

Re: How much rust is too much in manifolds?

Postby jralbert » Thu Apr 04, 2019 8:40 pm

Were they full of water? Fresh/salt?
-joel-
former owner 1988 '32 FB Sedan
Chesapeake Bay
twin 318 / 240 hp
Potomac MD

legendlc
Aluminum Star
Posts: 102
Joined: Tue Mar 01, 2016 6:50 pm

Re: How much rust is too much in manifolds?

Postby legendlc » Thu Apr 04, 2019 10:41 pm

Dry when I opened it today it's been sitting for 10 years. I'm trying to figure out how to post pictures yet but I took some of the inside of the manifold. Boat is always in fresh water.
1978 37 Double Cabin
Lake Cumberland KY