Possible causes for GTOs overheating - Page 12 - Pontiac GTO Forum
User Tag List

Reply
 
LinkBack Thread Tools Display Modes
post #111 of 116 (permalink) Old 10-13-2014, 08:34 PM
 
Lemans guy's Avatar
 
Join Date: Oct 2014
Location: Nashville, Tennessee
Posts: 651
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 46 Post(s)
Guys, putting a TH350 in my 66 Lemans, need to rout. The new coolant lines, does anyone recall if original trans coolant lines go above or below the sway bar? It looks awful close either way, want to get it right and not bend the new lines. Ripped off the old ones, buts. I can't recall above or below.....it always happens!
Lemans guy is online now  
Sponsored Links
Advertisement
 
post #112 of 116 (permalink) Old 11-02-2015, 10:14 PM
 
Join Date: Sep 2015
Location: Sumter, SC
Posts: 87
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Great read. I have this same issue with my 1966 Tempest with the stock rad and 326 engine. Replaced upper rad hose, t-stat, and rad cap. So far so good. Car hasn't spit coolant since I did this. However, I did buy a new water pump, shroud, and clutch fan, for install this winter.

I read earlier that one of the posters said to make sure that the lower rad hose has a spring in it. I checked and the current one does, but the new one I bought does not. What is this springs purpose and can I just take the old one out and put it in the new one? Thanks for any help.
tiretread is offline  
post #113 of 116 (permalink) Old 11-03-2015, 07:23 PM
 
the65gto's Avatar
 
Join Date: Oct 2008
Location: Florida
Posts: 338
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 12 Post(s)
It keeps the hose from collapsing. If it is not rusted bad, you probably can reuse it.
the65gto is online now  
 
post #114 of 116 (permalink) Old 11-05-2015, 07:32 PM
 
Join Date: Sep 2015
Location: Sumter, SC
Posts: 87
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 9 Post(s)
Much thanks!
tiretread is offline  
post #115 of 116 (permalink) Old 02-14-2016, 10:31 AM
 
deanhickey's Avatar
 
Join Date: Apr 2015
Location: London and Maine
Posts: 136
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 36 Post(s)
Garage
Great information, have a 68 that will benefit from this. thanks again
deanhickey is online now  
post #116 of 116 (permalink) Old 05-15-2019, 11:03 AM
 
Join Date: May 2019
Posts: 8
Mentioned: 0 Post(s)
Tagged: 0 Thread(s)
Quoted: 4 Post(s)
Another thing I have found to be miss-understood is vacuum advance. Additional advance coming from the vacuum advance at idle helps keep your car cool and provides better throttle response.

If someone along the line has removed it put it back

Also if you have replaced your carb with a holley or other aftermarket carb and the vacuum advance is hooked to the ported vacuum ( as it actually states in some of the installation manuals) change it to a manifold vacuum port. Ported vacuum is an emission control. It removes vacuum advance at idle to raise operating temp and burn the gases more completely.

You want this advance from a performance perspective and to keep your old beast cool
datahoarder is offline  
Sponsored Links
Advertisement
 
Reply

  Pontiac GTO Forum > The 1964-1974 Pontiac Tempest, Lemans & GTO > 1964-1974 Tempest, Lemans & GTO Complete Engine Compartment Discussion

Quick Reply
Message:
Options

Register Now



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

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











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
Display Modes
Linear Mode Linear Mode



Similar Threads
Thread Thread Starter Forum Replies Last Post
Gto Overheating williamp302 1964-1974 Tempest, LeMans & GTO Technical and Electrical Wiring 30 02-04-2011 04:21 PM
Overheating Cottonfarmer Engine Discussions 15 08-10-2008 09:20 AM
Overheating??? When I Turn Engine Off And Leave The Key On... LS2~N~BLUE Engine Discussions 1 06-01-2006 11:08 PM

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