Cruisers Forum
 


Join CruisersForum Today

Reply
 
Thread Tools Rate Thread Display Modes
Old 26-07-2015, 18:26   #1
Registered User

Join Date: Apr 2010
Posts: 19
Volvo MD11D thermostat question # 2

I recently posted some questions about my older Volvo engine overheating - i subsequently have had the exhaust manifold off - it was pretty clogged up so I
had it acid washed and am ready to put it all back together - i also bought a new thermostat just in case there was an issue with that - the thermostat i have bought is a different shape to the previous one - it is part # 876080 - which when i have searched the internet seems to be the correct part - although it does replace the previous obsolete part - the issue is that it seems too large ( deep i.e. ) to fit - and i can't get the thermostat housing watertight when i put it all back together because the new thermostat is too deep .

has anyone had this problem ???

I am tempted to grind the required couple of mm off the base of the thermostat but seems a bit odd i need to do this .. but the part # seems correct

in the attache photo the new thermostat is on the left ...
Attached Thumbnails
Click image for larger version

Name:	IMG_0308.jpg
Views:	62
Size:	406.8 KB
ID:	106070  
__________________

__________________
bliss is offline   Reply With Quote
Old 26-07-2015, 19:13   #2
Guy
Registered User

Join Date: Feb 2013
Location: So. Oregon, USA
Boat: Seafarer36c
Posts: 4,308
Re: Volvo MD11D thermostat question # 2

You need to get a different thermostat. Don't worry so much about part #'s If it fits correctly it will work. Don't mess with the one that does not fit. If you really want to go big, get a "fail safe thermostat"( quits open.) I really don't understand why all thermostats are not "fail safe. Why do you have to go after market to get a decent thermostat? It must be a conspiracy.
__________________

__________________
Guy is offline   Reply With Quote
Old 26-07-2015, 19:45   #3
Registered User

Join Date: Jan 2010
Location: Ma
Boat: Sabre 28
Posts: 190
Re: Volvo MD11D thermostat question # 2

Test your old thermostat in boiling water and see if it opens properly. If it does clean it up and put it back in.

If it doesn't you probably will need to get another thermostat to make it fit properly. Be sure you check to make sure it is the same temperature rating. Your old thermostat should be labeled with the temp and it is likely 60c. Volvo has a few thermostats that look just like your original that are hotter for fresh water cooled engines. You don't want one of them in raw water cooling, it will clog you up again fast.

Good luck,

Shawn
__________________
Shawn67 is offline   Reply With Quote
Old 31-07-2015, 00:01   #4
Registered User

Join Date: Apr 2010
Posts: 19
Re: Volvo MD11D thermostat question # 2

There is an interesting footnote to my question about the thermostat not fitting into the thermostat housing - i was telling the story o a Volvo mechanic this morning when he asked me if i had read the instructions - now i'm a busy man - i don't usually have time for instructions but they do clearly say that in certain older models you need to either remove or whack in the pipe at the back of the housing 3 mm ..... there you go ... interestingly it doesn't quote my model but i think i that must be the solution
__________________
bliss is offline   Reply With Quote
Reply

Tags
volvo

Thread Tools
Display Modes Rate This Thread
Rate This Thread:

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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Volvo MD11d - thermostat question bliss Engines and Propulsion Systems 12 07-07-2015 18:37
Volvo MD11D overheating bliss Engines and Propulsion Systems 7 28-02-2015 22:48
Volvo 120 s / MD11D engine new prop bliss Propellers & Drive Systems 1 21-12-2013 06:39
Volvo MD11D fuel pump bliss Engines and Propulsion Systems 5 12-03-2013 23:56
Volvo MD11D Water Pump Question bliss Engines and Propulsion Systems 4 14-02-2012 05:44



Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 10:52.


Google+
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.