Need help with proper thermostat housing gaskets install
#1
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Ok, I pulled and chucked the old thermostats and gaskets last fall when winterizing. now i bought new.
when i looked on the mercruiserparts.com site at the illustration, there is a sleeve that i don't have for either engine. and I have a question on which of the gaskets to use . there is one with an open sware notch, and one closed. the illustration seems to show the closed tab (check valve type action??) can anyone explain the proper location and function of the gaskets, and also to confirm, cause i have no memory. the spring goes down into the intake manifold for thermostat right?
see graph posted next by waterfoul
this is my (old stype) setup
Ramb
when i looked on the mercruiserparts.com site at the illustration, there is a sleeve that i don't have for either engine. and I have a question on which of the gaskets to use . there is one with an open sware notch, and one closed. the illustration seems to show the closed tab (check valve type action??) can anyone explain the proper location and function of the gaskets, and also to confirm, cause i have no memory. the spring goes down into the intake manifold for thermostat right?
see graph posted next by waterfoul
this is my (old stype) setup
Ramb
#2
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thermostat housing
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Last edited by Waterfoul; 05-13-2004 at 07:25 AM.
#4
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thanks Cord,
can't have any blue ooze showing though
but the main question is the gasket with the square flange. use the one that blocks the area off, as demonstrated in the illustration, or the one with the cutout.
and the cork goes on top of the thermostat, not under it?
and the thermostat spring points down??
and the cylinder , what's that for?
I wanna go boating too, help me out buddies
can't have any blue ooze showing though
but the main question is the gasket with the square flange. use the one that blocks the area off, as demonstrated in the illustration, or the one with the cutout.
and the cork goes on top of the thermostat, not under it?
and the thermostat spring points down??
and the cylinder , what's that for?
I wanna go boating too, help me out buddies
![Big Grin](/forums/images/smilies/biggrin.gif)
#5
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Thread Starter
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thanks everyone for all your help.
I should have posted......
" my Apache with 600sc's needs help with thermostat housing"
just kidding.
anyway. found my answer by other means for anyone else.
the gasket with two small brass gromets is used when the temp sending is on the housing, this makes ground contact assured
the cork gasket goes above the thermostat, not below,
the thermostat spring points down
the top gasket with square tab "cutout" is used when the top cap is old version (has square bypass casted in) the non cutout tab used when there is no bypass cast in the top cap.
Ramb
![Roll Eyes (Sarcastic)](/forums/images/smilies/rolleyes.gif)
I should have posted......
" my Apache with 600sc's needs help with thermostat housing"
![Smilie](/forums/images/smilies/smile.gif)
just kidding.
![Smilie](/forums/images/smilies/smile.gif)
![Smilie](/forums/images/smilies/smile.gif)
![Smilie](/forums/images/smilies/smile.gif)
anyway. found my answer by other means for anyone else.
the gasket with two small brass gromets is used when the temp sending is on the housing, this makes ground contact assured
the cork gasket goes above the thermostat, not below,
the thermostat spring points down
the top gasket with square tab "cutout" is used when the top cap is old version (has square bypass casted in) the non cutout tab used when there is no bypass cast in the top cap.
Ramb
#6
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Thanks. I plan to install new gaskets next week, and like you threw the old out last fall. While you didn't get much help from the board, I appreciate your post.