imp0ster
Petty Officer 2nd Class
- Joined
- Apr 18, 2010
- Messages
- 189
Did you install the cork gasket (item number 3) first up inside the housing before the installing thermostat? If not, you'll need to.... The white sleeve should have a little notch on the outside to fit in a groove inside the housing making it go in only one way if the thermostat housing was Mercruiser OEM. Is that a new to you housing? If so, have a part number/link to the part you bought as there are a few other styles available and some seemed to possibly have used another style sleeve if this one don't seem to fit so well for you to question it. < Just think out loud.The little quark gasket!