Cruisers Forum

Join CruisersForum Today

Thread Tools Rate Thread Display Modes
Old 16-08-2013, 11:39   #16
Senior Cruiser
roverhi's Avatar

Cruisers Forum Supporter

Join Date: Aug 2005
Location: Kona, Hawaii
Boat: 1969 Pearson 35 #108
Posts: 5,446
Send a message via Yahoo to roverhi
Re: Universal M18 Operating Temp

You can run an engine without coolant for a surprisingly long time before it overheats to the point of doing damage. Just cranking/starting the engine, after it had time to cool, to see if it would run and shutting it down, shouldn't be a problem. If the engine stopped because it overheated, seized and broke something serious, you could possibly do damage but the engine should loudly tell you immediately to cease and desist.

If the temp gauge is not working when the engine has run long enough to heat the coolant water, it's probably not the thermostat. Thermostats pass some water through even at idle. If there is no coolant, a properly working temp gauge will not show the proper temperature as they need to be immersed in coolant. Eventually will probably indicate an engine in distress but could be too late by then. I'd suspect you have a sender or gauge issue. 'sailing jazz' has detailed how to trouble shoot the sender/temp gauge.

Peter O.
'Ae'a Pearson 35
roverhi is offline   Reply With Quote

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
Low Operating Temp drh1965 Engines and Propulsion Systems 7 07-04-2008 16:58
Volvo MD2B operating temperature?? amity Engines and Propulsion Systems 1 03-09-2007 16:47
Universal M18 drh1965 Engines and Propulsion Systems 15 27-08-2007 12:40
Operating RPMs Rippy Engines and Propulsion Systems 15 23-02-2006 04:51
Normal operating rpm Weyalan Engines and Propulsion Systems 3 19-12-2005 16:44

Our Communities

Our communities encompass many different hobbies and interests, but each one is built on friendly, intelligent membership.

» More about our Communities

Automotive Communities

Our Automotive communities encompass many different makes and models. From U.S. domestics to European Saloons.

» More about our Automotive Communities

Marine Communities

Our Marine websites focus on Cruising and Sailing Vessels, including forums and the largest cruising Wiki project on the web today.

» More about our Marine Communities

Copyright 2002-2015 Social Knowledge, LLC All Rights Reserved.

All times are GMT -7. The time now is 17:21.

Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.
Social Knowledge Networks
Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2016, vBulletin Solutions, Inc.

ShowCase vBulletin Plugins by Drive Thru Online, Inc.