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View Full Version : how long are indmar exhaust manifolds good for?


91.Maristar.240
06-24-2011, 05:36 PM
and how do i check them to make sure they are good?
also anyone have the GLM ones they seem superior and cheaper too me!

Dino Don
06-25-2011, 07:44 PM
and how do i check them to make sure they are good?
also anyone have the GLM ones they seem superior and cheaper too me!

Mine are original and going on 24 yrs old and are still OK. Boat has 624 hrs--

jconover
06-26-2011, 02:44 AM
Mine are 23 years old and doing just fine as well - i think that depends a lot on care and feeding, and especially whether they are exposed to salt water

jsonova99
06-26-2011, 08:53 AM
mine are 20 years, and this past summer was the first year the boat saw salt (no other good options in our new location). They're still okay, but noticeable corrosion around the joints that was never there before.

How do you know when they need to go though, wait until they leak?

j.mccreight@hotmail.com
06-26-2011, 09:07 AM
Mine are 22 years old, fresh water use a, lot of hours/years, salt/ brackish water not so much...

Matt L.
06-28-2011, 12:09 AM
The bigger question might be. How long are the rise gaskets good for? I replaced mine a few years back JIC.

Later,

Matt