Thermostat for Atomic IV - SailNet Community

   Search Sailnet:

 forums  store  


Quick Menu
Forums           
Articles          
Galleries        
Boat Reviews  
Classifieds     
Search SailNet 
Boat Search (new)

Shop the
SailNet Store
Anchor Locker
Boatbuilding & Repair
Charts
Clothing
Electrical
Electronics
Engine
Hatches and Portlights
Interior And Galley
Maintenance
Marine Electronics
Navigation
Other Items
Plumbing and Pumps
Rigging
Safety
Sailing Hardware
Trailer & Watersports
Clearance Items

Advertise Here






Go Back   SailNet Community > On Board > Gear & Maintenance
 Not a Member? 
  #1  
Old 07-12-2005
Member
 
Join Date: Aug 2001
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 14
owlmtn is on a distinguished road
Thermostat for Atomic IV

I just saw a price of $100 for a thermostat for my atomic IV (moyer marine) there''s gotta be a better solution! is there an automotive themostat that would work. What''s so special about this particular themostat. I''d love to hear from anyone with any experience. Jim
Reply With Quote Quick reply to this message Share with Facebook
  #2  
Old 07-12-2005
Senior Member
 
Join Date: Jun 2001
Location: Wilson, NY
Posts: 562
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 14
Irwin32 is on a distinguished road
Thermostat for Atomic IV

I am unaware of an alternative for the atomic 4 thermostat. I think you are stuck. Moyer Marine is a fair place to do business with. Just be sure your old thermostat is the problem. Have you put it in a pot of heated water, with a thermometer, and watched what it did as it approached 140 and 160?
Reply With Quote Quick reply to this message Share with Facebook
  #3  
Old 07-19-2005
Member
 
Join Date: Aug 2001
Posts: 78
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 14
owlmtn is on a distinguished road
Thermostat for Atomic IV

Irwin, Yeah i put it in hot water and it''s not opening until a little over 180. it also doesn''t open completely. however it is also becoming apparent that i''ve got some constriction in the cooling system. either in the raw water or fresh water. rust or maybe an old impeller. the raw water intake is fine and the screen is clean. The engine doesn''t overheat at 1500 rpm but will start to overheat at 2000. Jim
Reply With Quote Quick reply to this message Share with Facebook
  #4  
Old 07-29-2005
Senior Member
 
Join Date: Jun 2001
Location: Wilson, NY
Posts: 562
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 14
Irwin32 is on a distinguished road
Thermostat for Atomic IV

Moyer does say that running the A4 at 180 is a good thing and that running it at 160 is not really good for it as the cooler temperature encourages carbon buildup.
Reply With Quote Quick reply to this message Share with Facebook
  #5  
Old 07-29-2005
Senior Member
 
Join Date: Dec 2003
Posts: 126
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 12
Billpjr is on a distinguished road
Thermostat for Atomic IV

But running a raw saltwater cooled engine at temps above 140F makes buildup in the cooling passages faster. High temps are for fwc.
Reply With Quote Quick reply to this message Share with Facebook
  #6  
Old 07-31-2005
Senior Member
 
Join Date: Jun 2001
Location: Wilson, NY
Posts: 562
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 14
Irwin32 is on a distinguished road
Thermostat for Atomic IV

That is correct, I forgot about salt water cooling - though 160 is, according to the A4 manual, the top temp for normal running. Moyer feels that boats should be converted to a self contained cooling system so the engine can run hotte
Reply With Quote Quick reply to this message Share with Facebook
  #7  
Old 07-06-2010
Junior Member
 
Join Date: Jun 2010
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
maa1994 is on a distinguished road
Jim,
I know this was a while back, but may I ask what your final solution was on the replacement of your thermostat. I have a 140 that appears to need replacing and is opening at about the 190+ mark. Funny thing is, I bought another Merc 140 and tested it on the stove only to find it responding in the same way.
Any help from anyone would be greatly appreciated.
Best, Miguel
Reply With Quote Quick reply to this message Share with Facebook
  #8  
Old 07-07-2010
Senior Member
 
Join Date: Jun 2007
Posts: 2,708
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 9
SEMIJim will become famous soon enough SEMIJim will become famous soon enough
Moyer Marine sells retrofit kits that retrofit the A4's thermostat housing to accept a current-production thermostat.

Jim
Reply With Quote Quick reply to this message Share with Facebook
Reply

Quick Reply
Message:
Options

By choosing to post the reply above you agree to the rules you agreed to when joining Sailnet.
Click Here to view those rules.

Register Now

In order to be able to post messages on the SailNet Community forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.
Please note: After entering 3 characters a list of Usernames already in use will appear and the list will disappear once a valid Username is entered.
User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

 
Posting Rules
You may post new threads
You may post replies
You may post attachments
You may edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is On



All times are GMT -4. The time now is 11:43 PM.

Add to My Yahoo!         
Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
SEO by vBSEO 3.6.1
(c) Marine.com LLC 2000-2012

The SailNet.com store is owned and operated by a company independent of the SailNet.com forum. You are now leaving the SailNet forum. Click OK to continue or Cancel to return to the SailNet forum.