Volvo Penta MS 2V Overheating - SailNet Community
 6Likes
Reply
 
LinkBack Thread Tools
post #1 of Old 02-22-2013 Thread Starter
d-p
Junior Member
 
Join Date: Oct 2004
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Volvo Penta MS 2V Overheating

I have an 84 C&C sailboat with a 27 horse, 3 cylinder diesel. It has started running hot after 2 or 3 hours of use. I have checked the thermostat, heat exchanger and the prop turns freely. Has plenty of raw water coming out of the exhaust, new inpeller 1 year ago. What else could it be? thanks
engine MS 2V
d-p is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
Advertisement
 
post #2 of Old 02-22-2013
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 16,339
Thanks: 101
Thanked 303 Times in 293 Posts
Rep Power: 10
     
Re: Volvo Penta MS 2V Overheating

What specifically did you check about the H/E? are the tubes clear/clean? No impeller bits on the intake end? Odd that it takes 2 - 3 hours to manifest the problem... Mixing elbow clear? Any suction hoses aging and starting to collapse/pinch off flow? FW coolant levels OK?

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is online now  
Quote Quick Reply Share with Facebook
post #3 of Old 02-22-2013
Senior Member
 
johnnyquest37's Avatar
 
Join Date: Feb 2012
Location: Houston, TX
Posts: 396
Thanks: 1
Thanked 6 Times in 6 Posts
Rep Power: 4
 
Re: Volvo Penta MS 2V Overheating

How did you check the thermostat?

[/B]S/V Wind Orchid
Catalina 350 (hull# 273)
Annapolis, MD

LET'S GET SERIOUS ABOUT REMOVING POLITCAL TAG LINES -- NOW!
johnnyquest37 is offline  
Quote Quick Reply Share with Facebook
post #4 of Old 02-22-2013
Battered and Bruised
 
Silvio's Avatar
 
Join Date: Nov 2010
Posts: 490
Thanks: 0
Thanked 7 Times in 4 Posts
Rep Power: 5
 
Re: Volvo Penta MS 2V Overheating

I would replace the thermostat (cheap and easy) and open up the HE and clean it out as others have already suggested. Might help to know roughly where you are at also.

If your RW side is working you are likely either not exchanging heat or not circulating FW through the cooling system.

SV S.S.R.I
It's my happy pill
To view links or images in signatures your post count must be 10 or greater. You currently have 0 posts.
Silvio is offline  
Quote Quick Reply Share with Facebook
post #5 of Old 02-22-2013 Thread Starter
d-p
Junior Member
 
Join Date: Oct 2004
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: Volvo Penta MS 2V Overheating

Tubes are clear. Still looking at the mixing elbows. If i run water in one elbow it comes out the other but won't filll any tubes up if I close the one and fill the other. Don't seem right?
d-p is offline  
Quote Quick Reply Share with Facebook
post #6 of Old 02-22-2013 Thread Starter
d-p
Junior Member
 
Join Date: Oct 2004
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: Volvo Penta MS 2V Overheating

pan of Hot water and thermometer
d-p is offline  
Quote Quick Reply Share with Facebook
post #7 of Old 02-22-2013 Thread Starter
d-p
Junior Member
 
Join Date: Oct 2004
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: Volvo Penta MS 2V Overheating

replaced thermost last year, checked it this Morning. I Am in Isla Mujeres, Mexico right now.
d-p is offline  
Quote Quick Reply Share with Facebook
post #8 of Old 02-22-2013 Thread Starter
d-p
Junior Member
 
Join Date: Oct 2004
Posts: 6
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
 
Re: Volvo Penta MS 2V Overheating

Is it correct that only raw water runs through the tubes?
d-p is offline  
Quote Quick Reply Share with Facebook
post #9 of Old 02-22-2013
Just another Moderator
 
Faster's Avatar
 
Join Date: Sep 2005
Location: New Westminster, BC
Posts: 16,339
Thanks: 101
Thanked 303 Times in 293 Posts
Rep Power: 10
     
Re: Volvo Penta MS 2V Overheating

Typically RW goes through the tubes and the FWcoolant surrounds the tubes, but it's possible to be reversed.. it would work either way if so designed. I believe most run RW through the tubes.

If your RW flow is adequate then the thermostat and the coolant level are the first things to ensure are correct. You could confirm your FW levels are good, then run without the thermostat as a trial and see if it stays (likely too) cool... If it still heats up there's a problem with your circulation, or the H/E is likely fouled or ineffective in some way.

Also possible that your temp indication is faulty and you're not indeed heating up.. but that's a risky assumption to make...
d-p likes this.

Ron

1984 Fast/Nicholson 345 "FastForward"

".. there is much you could do at sea with common sense.. and very little you could do without it.."
Capt G E Ericson (from "The Cruel Sea" by Nicholas Monsarrat)
Faster is online now  
Quote Quick Reply Share with Facebook
post #10 of Old 02-22-2013
Senior Member
 
Join Date: Jan 2013
Location: Montreal, QC, Canada
Posts: 337
Thanks: 0
Thanked 14 Times in 13 Posts
Rep Power: 3
 
Re: Volvo Penta MS 2V Overheating

Could it also be a sign that the raw water system has developed a layer of salt crystals, impeeding the transfer of heat. Desalination with various acids is the only way I think, but I'm a fresh water sailer.
d-p likes this.
sony2000 is offline  
Quote Quick Reply Share with Facebook
Reply

Quick Reply
Message:
Options

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:
OR

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
Show Printable Version Show Printable Version
Email this Page Email this Page



Similar Threads
Thread Thread Starter Forum Replies Last Post
Volvo MD7A Overheating Solved? harbin2 Gear & Maintenance 6 05-09-2011 07:40 PM
Volvo Penta 39 jernhenrik Gear & Maintenance 0 10-18-2009 12:00 PM
Volvo overheating davewild Diesel 3 07-06-2009 11:54 AM
Volvo Penta engine rondezvous Gear & Maintenance 1 09-24-2006 12:24 PM
Volvo MD11C Overheating takwita Gear & Maintenance 2 05-16-2004 05:47 AM

Posting Rules  
You may post new threads
You may 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 On
Trackbacks are On
Pingbacks are On
Refbacks are On

 
For the best viewing experience please update your browser to Google Chrome