Reply
 
Thread Tools Search this Thread Display Modes
 
Old 07-08-2012, 11:16 PM   #1
Commander
 
jrsick's Avatar
 
Join Date: Oct 2011
Location: Chesapeake, VA
Posts: 482
Default Thermostat

captains, anyone have recommendations on when to replace the thermostat in a mercruiser? I've got a 2001 3.0.
Temp has been fine for the 3 seasons I have owned the boat. I want to avoid problems but also not change components unnecessarily.
Really enjoy the Maxum forum. Great info that has helped me avoid problems and enjoy the water!
__________________

jrsick is offline   Reply With Quote
Old 07-08-2012, 11:37 PM   #2
Commander
 
Join Date: Aug 2010
Location: Purcellville, VA.
Posts: 296
Default

I replace mine when I winterize each fall. It is a bit overkill but the thermostat and gasket kit is only $20. I would rather spend a bit extra each year and be confident that all is good then re-use the thermostat when it was out and easy to replace.
When I winterize I remove the thermostat housing and pour RV Antifreeze into the block until full. I then put in new thermo and gasket and bolt the housing back up. Then in spring, I just put it in the water and start it, nothing to do but connect battery and go. Simple enough
__________________

mcoffey is offline   Reply With Quote
Old 07-09-2012, 12:17 AM   #3
Captain
 
pascavone's Avatar
 
Join Date: Nov 2010
Location: Massapequa, New York, United States
Posts: 762
Default

if it works, don't fix it.......
pascavone is offline   Reply With Quote
Old 07-09-2012, 09:05 PM   #4
Commander
 
Join Date: Mar 2010
Location: Southern Maine
Posts: 289
Default

The wise-***** answer to this is replace it when the overheating alarm goes off and/or your temperature gage shows the motor running too hot or too cold. The 4.0 answer is from mcoffey, that is cheap insurance to be sure you will have no issues.

-JP
CountryME is offline   Reply With Quote
Old 07-13-2012, 11:06 AM   #5
Commander
 
jrsick's Avatar
 
Join Date: Oct 2011
Location: Chesapeake, VA
Posts: 482
Default

Thanks for the replies. Owner's manual recommends removing thermostat to winterize as per mcoffey's suggestion, then states that you should put the old thermostat back in the engine only with a new gasket. I think my initial plan will be to order a new thermostat and 4 gaskets. I'll winterize by removing the thermostat, replace with a new gasket annually, and a new thermostat every 5 years.
jrsick is offline   Reply With Quote
Reply

Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Powered by vBadvanced CMPS v3.2.3

All times are GMT. The time now is 11:11 AM.


Powered by vBulletin® Version 3.8.8 Beta 4
Copyright ©2000 - 2020, vBulletin Solutions, Inc.