Thread Tools Display Modes
Old 07-15-2011, 04:08 PM   #21
Senior Member
Join Date: Jun 2011
Posts: 149
most engines today run at about 200 degrees so teh fluid is no cooler than the radiator it runs thru

Fourn3833 is offline   Reply With Quote
Old 07-15-2011, 07:11 PM   #22
Senior Member
prof_fate's Avatar
Join Date: Jan 2011
Location: Beaver, PA
Posts: 879
Originally Posted by Fourn3833 View Post
most engines today run at about 200 degrees so teh fluid is no cooler than the radiator it runs thru
The thermostat is in the engine block and that opens to allow water to flow if the temp at the t-stat is at or above 195F. If it's cooler, as it would be when the engine is first started, then it's closed and the water does not flow to the radiator. It doesn't take long for things to heat up though, and the ideal sitiation has the engine block at 195F - for efficiency and for emmissions purposes.

Can't say I've measured the water in/out of a rad to know how much cooler it is at the bottom - 150? Cooler?. Temp sensors like you may have on your dash are in the engine block (usually in the head but not always) so they should stay constant if the t-stat is working properly. The fan will turn on when the 'natural' airflow isn't enough to keep things cool, and at highway speeds the fan usually won't run.

You'll notice it's constant in the 10F winter and while towing in 95F heat with the A/C on, so I'd imagine the rad can dump a lot of heat when it has to.

the proper routing of the trans cooler lines is trans to the cooler in the radiator then to the aux cooler and then back to the trans.

Jill & Chris, Wills (14) Evie (11) & Toby our collie (5)
2011 Grey Wolf 28BH
2013 Chevy K1500 Crew w/ Reese StraitLine Dual Cam

Nights camped 2011: 11 2012: 18 2013: 12 2014: 12 2015: 13 2016: 3
prof_fate is offline   Reply With Quote

Thread Tools
Display Modes

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

» Virginia Campgrounds

Reviews provided by is not in any way associated with Forest River, Inc. or its associated RV manufacturing divisions.

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 -5. The time now is 05:01 PM.