454 Thermostat Set Up

959 Views 7 Replies 5 Participants Last post by parentsgonewild, Jun 16, 2008

parentsgonewild

Discussion Starter · Jun 12, 2008

I am hoping someone can help me out - I have a 1995 7.4L 454 carbed engine w an open cooling system - Went to change my thermostat and when I lifted the housing up everything fell out (thermostat, O-gasket and a plastic like ported sleeve) - Figured I knew how it was set up but now I have no temp reading at the gauge - Looked at the mercruiser installation manual and if the diagram is correct, it looks like the themostat sits on top of the ported sleeve and inserts up into the housing - I had the thermo sitting on the block and the ported sleeve on top of it going up into the housing - Can anyone verify one way or the other?

Save

1 - 8 of 8 Posts

GoCiggie31

· #2 · Jun 12, 2008

Hope this helps...
FYI,
good web site for reference
http://www.mercruiserparts.com/Show...1&bdesc=THERMOSTAT+HOUSING+(STANDARD+COOLING)

See less See more

Save

GoCiggie31

· #3 · Jun 12, 2008

parentsgonewild said:
I am ... - Figured I knew how it was set up but now I have no temp reading at the gauge -...?

2xfyi...also, double check on the contacts located on the gasket to make sure your grounding the housing for the sender

Save

parentsgonewild

Discussion Starter · #4 · Jun 12, 2008

Thanks guys - I have all the correct merc parts, including the gasket w/rivets - Tonight I will install it as illustrated, put her on muffs and hope the problem is solved.

Save

Kidnova

· #5 · Jun 12, 2008

Bet I've had mine apart a million times. Well, maybe not quite that many. Anyways, I still gotta look up the right way to put it back together

Save

DonMan

· #6 · Jun 12, 2008

parentsgonewild said:
Tonight I will install it as illustrated, put her on muffs and hope the problem is solved.

I have a very hard time getting my engine up to normal operating temp when running on muffs.

Save

Fyhr Factor

· #7 · Jun 14, 2008

If it's set up like the drawing, and if you turn the housing upside down, order goes, O-ring, T-Stat, Ported Sleeve, Gasket, Turn over , and hold sleeve in place if it won't stay in, then install on intake..

Save

parentsgonewild

Discussion Starter · #8 · Jun 16, 2008

Thanks gentleman - I put it together as suggested/illustrated and all is well - Got a temp reading on the muffs and took her out - Had good readings all weekend.

Save

1 - 8 of 8 Posts

This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.

454 Thermostat Set Up

parentsgonewild

GoCiggie31

Attachments

GoCiggie31

parentsgonewild

Kidnova

DonMan

Fyhr Factor

parentsgonewild

Top Contributors this Month