Draining exhaust manifolds

doral1985

Petty Officer 2nd Class
Joined
Jun 19, 2011
Messages
107
Whats the normal after a run with the 3.8l , do you drain the manifolds between outings or leave the water in them?
 

Howard Sterndrive

Rear Admiral
Joined
Nov 5, 2008
Messages
4,603
Re: Draining exhaust manifolds

leave fresh water in them except in the winter
 
Last edited:

jerryjerry05

Supreme Mariner
Joined
May 7, 2008
Messages
18,075
Re: Draining exhaust manifolds

Draining the water from the manifold will accelerate the rusting.
If you run in salt water, then flush and leave the fresh water in there.
When you winterize, make sure the manifolds have antifreeze in them.
 
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