Overheating - Team Camaro Tech
Troubleshooting Diagnosing problems done here.

LinkBack Thread Tools Display Modes
post #1 of 6 (permalink) Old Jun 5th, 01, 06:36 PM Thread Starter
Join Date: Jun 2001
Location: Chanute, Ks
Posts: 2

I have a 67 Camaro, with a fairly hot 350. Just had the radiator changed from an old 2 row to a new 3 row. Also had the thermostat changed from a 160 to 180 (thought I was going from a 195 down to a 180). Car runs around 195 around town, but on the highway gets up to around 210. Should I put a 160 back in an effort ot cool it down or leave the 180 in. I have asked around and keep getting conflicting stories. Car has 4:11 rear end.
rope113 is offline  
Sponsored Links
post #2 of 6 (permalink) Old Jun 6th, 01, 01:54 AM
Senior Tech
Join Date: Jan 2001
Location: Raleigh, NC
Posts: 1,046

With the 4.11 rear, you are turning quite a few rpms on the highway. Read your plugs and make sure that you are not running too lean ... also, check for any kind of vacumm leak which could also make you run lean...
sdtsdt is offline  
post #3 of 6 (permalink) Old Jun 6th, 01, 07:57 AM
Team Member
JohnZ's Avatar
Join Date: Sep 2000
Location: Washington, Michigan USA
Posts: 7,728

Have you changed anything else from the 2-row setup you had before? How did it behave before the radiator change? Are you using the stock shroud and fan/clutch? Lotsa questions, but need to understand what you had before and how it worked, to compare against what you have now.

'69 Z28 Fathom Green
JohnZ is offline  
post #4 of 6 (permalink) Old Jun 6th, 01, 08:22 AM
Gold Lifetime Member
Join Date: Feb 2000
Location: Accord, NY
Posts: 4,817

The rear gears don't affect the cooling. I have the same setup. JohnZ has posted many good suggestions which are good reading from a search. Let's start with your basics and we'll get you there.

Rick Dorion
69 RS Conv,355,M20,4:10
RickD is offline  
post #5 of 6 (permalink) Old Jun 6th, 01, 09:38 AM
Senior Tech
Join Date: Jan 2001
Location: Raleigh, NC
Posts: 1,046

My reference to the rear gears was actually a reference to engine speed ( rpms ) . At highway speeds, you should have enough air flowing through the radiator to cool it properly. A lean buring engine will run hotter than a richer burning engine... I suggest looking at this because the posting implies that over-heating is not a problem at street stop/go driving...
sdtsdt is offline  
post #6 of 6 (permalink) Old Jun 6th, 01, 05:43 PM
Senior Tech
Join Date: Apr 2001
Location: Houston,TX
Posts: 138

The religion of JohnZ has taught us that overheating at speed is a flow problem as opposed to overheating at stop which is a air movement problem. Also, lower stat open temp will not reduce overall temp.
TheGreen68 is offline  
Sponsored Links

Quick Reply

Register Now

In order to be able to post messages on the Team Camaro Tech forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

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.
NOTE we receive a lot of registrations with bad email addresses. IF you do not receive your confirmation email you will not be able to post. contact support and we will try and help.
Be sure you enter a valid email address and check your spam folder as well.

Email Address:


Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode

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 Off
Trackbacks are On
Pingbacks are On
Refbacks are On

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