1990 v-6 thermostat--how to get it out of the housing?

[denhajm]

Hello, I have a 262 cu-in GM-v-6 mercruiser engine, OC861086, in a '90 sea ray 200 BR. I want to put in a new thermostat and have the housing removed from the block but the existing t-stat doesn't want to come out. There is a metal sleeve that seems to be holding it in place from above? I've done some pushing and pulling but haven't had any luck removing it the thermostat. I don't want to push too hard in either direction as I'm afraid I'll be removing it in pieces. There must be a technique or tool for this?
Thanks,
Jason

 

[Don S]

Re: 1990 v-6 thermostat--how to get it out of the housing?

Pull the brass sleeve out first. It holds the thermostat in place.

Item 10 in the drawing below.

 

[denhajm]

Re: 1990 v-6 thermostat--how to get it out of the housing?

Don, thanks for your reply. So the brass sleeve comes up and out first. Do you use some sort of a hook tool?

Jason

 

[Don S]

Re: 1990 v-6 thermostat--how to get it out of the housing?

I use whatever it takes. Give it a try, you might be able to pull it up with your fingers.

 

[denhajm]

Re: 1990 v-6 thermostat--how to get it out of the housing?

The sleeve seems to be firmly in place. I think I'll just use the existing thermostat and verify it is working properly. I don't know how old it is and figured I'd replace it, but maybe I'll just use it as-is if it working. Save the new T-stat for when it is needed.