Perkins 4.108 overheating - SailNet Community
LinkBack Thread Tools
post #1 of 3 Old 04-19-2003 Thread Starter
Junior Member
Join Date: Apr 2003
Posts: 1
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Perkins 4.108 overheating

Hi anyone have this problem? I have a Diesel Perkins and it is overheating. The water in the header tank disappears and can''t find where it is going! Have replaced thermostat and checked all hoses and the head and cannot find a leak. The oil is fine no water in it or oil in the water. Engine seems to run fine but water disappears almost as soon as you start up the engine. Is that disappearence normal? please help me! I am out of things to try..thanks...
singingdrum is offline  
Quote Quick Reply Share with Facebook
Sponsored Links
post #2 of 3 Old 04-20-2003
Senior Member
Join Date: Jul 2000
Posts: 172
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 17
Perkins 4.108 overheating

Suggest you check out your heat exchanger. If it hasn''t been maintained, it''s possible for the fresh water(header tank water) to escape through the heat exchanger tubes.
A low water level in the fresh water supply will surely result in high temps as the fresh water supply is the engines only way to get rid of heat.

Heat exchangers deteriorate if the zincs have not been maintained. Once a leak develops between the salt water (raw water) tubes and the engine coolant, heating problems are sure to follow.

Remove the heat exchanger and have it checked out by a radiator shop. If they are near salt water, they are probably familiar with heat exchangers and their maintenance.
joub is offline  
Quote Quick Reply Share with Facebook
post #3 of 3 Old 04-22-2003
Junior Member
Join Date: Jul 2000
Posts: 26
Thanks: 0
Thanked 0 Times in 0 Posts
Rep Power: 0
Perkins 4.108 overheating

In addition to the heat exchanger, the exhaust manifold is bathed in fresh water. There could be a crack inside the manifold that is allowing the fresh water to go right out the exhaust. You can follow the tubing that comes off the tank to get an idea of the flow thru the manifold.

phunter is offline  
Quote Quick Reply Share with Facebook

Quick Reply

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:
Please enter a password for your user account. Note that passwords are case-sensitive.


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:


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
old Perkins 4108 firemanbob55 General Discussion (sailing related) 3 01-20-2010 10:59 AM
Yanmar vs. Perkins skiakhokie Boat Review and Purchase Forum 2 06-29-2004 07:20 AM
Perkins 4-108 Oil Sump Strainer ABullard Gear & Maintenance 1 04-20-2004 01:00 PM
Perkins and Bottom Paint barefootsailing Boat Review and Purchase Forum 3 04-17-2003 08:16 PM
perkins 4-108 overheating lisevp Gear & Maintenance 1 01-29-2003 01:38 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