Jump to content
Forums Gone... but not forgotten!
Pontiac of the Month

Keane165's 1970 LeMans

2022 June
of the Month

  • Welcome!

    Welcome to Forever Pontiac, where we keep the memory of Pontiac alive with great discussion, maintenance tips, restoration/modification progression "blogs" and help from professional & DIY mechanics. Also, wonderful competitions that occur regularly. Please register for an absolutely free account to join in!

Radiator flow


Recommended Posts

I am just finishing up putting the Vintage Air on My 65 GTO.  Put aluminum Pulleys and Cleaning up the engine bay.  Was noticing that My Radiator Inlet and Outlet are both on the right side of the Radiator, Being that it is not a cross flow but flows bottom to top, Am I going to have heating problems,  What keeps the water from just going in the bottom and backout the top without going through the rest of the radiator. It gets hot in Vedas so I really don't want heating problems. Any Information would be appreciated,  Thank You

Link to comment
Share on other sites

Tired of these Ads? Register Today!

yes that sound odd to me, as it wont dissipate the heat as well as the inlet and out being in opposite corners.... i would be asking the person who sold it too you.

sounds like they have put the wrong tank on either the top or bottom  ..

it certainly gets hot in vegas:cheers: hows the city doing with all this covid bs??? bet its been really quiet !!! we had planned to come back this year but that just wasnt going to happen:( 

  • Like 2
Link to comment
Share on other sites

I'm with Kiwi on this B Neal. My first reaction is that you were sold the wrong radiator.

What brand of radiator is it?

  • Like 1
Link to comment
Share on other sites

The Radiator was In the car when I bought it,  It looks like the stock Radiator It is a three row.  I have seen other cars in pictures and seen adds for radiators for this car with the inlet and outlet on the right side.  but don't understand how it would cool very well unless there is a baffle or something to direct the flow to the left side of the radiator,  thought maybe there might be someone out there that knew a lot about radiators that could answer My question.  (KIWI Vegas Is hanging in there Still opening new casinos and other venues Like the Raiders Arena, It is tough especially when You have a stupid and spineless Governor.  But We still have a lot of tourists coming in)

  • Like 1
Link to comment
Share on other sites

Good to hear mate :cheers:

Really enjoyed our time there last year 👍

I would’ve pulling that radiator and take  it to a radiator shop, have the outlet. Swapped over and fit a new top hose 

then you know it will work 👍👍👍👍

  • Like 1
Link to comment
Share on other sites

I priced them and I can get another one with the outlet on the left or a cross flow fairly cheap, But I don't really know if I have a problem until I run it next summer when it gets hot.  Just wondering if anyone had noticed this before

Link to comment
Share on other sites

Hi again B Neal.

I did a little visual research. The radiator is correct for the 65 GTO. You can see from the photo that that the upper hose from the thermostat runs to the right side of the radiator, as doesh the lower hose. In later years, the thermostat housing was changed and the upper radiator hose was moved to the left side. This photo is from the '65 GTO in the Volo Auto Museum.

image.png.4fa426c24c06ecb6a0be239ee3411e49.png

image.thumb.png.d8dd8eced55986ab009a600e77983590.png

Here is a single carb set-up as well, albeit a little worse for wear.

  • Like 2
Link to comment
Share on other sites

Thank Frosty, that is what mine likes like(without the tri power).  I am going to putt it back the way it was and see how it holds up to the heat.  Thank everyone

Link to comment
Share on other sites

Your radiator and cooling system appears to be correct....Hope this helps....

16086620898601063446918696219736.jpg

16086621110447020733376127240130.jpg

16086621368245969005623321225320.jpg

16086621680583943647437545570870.jpg

  • Like 2
Link to comment
Share on other sites

I think it is correct the way the factory intended,  It's just that it doesn't make a lot of sense that it would use the whole radiator.  I've been a pipefitter for 50 years and I know that liquid will choose the path of least resistance,  that said with the inlet and outlet on the same side of the vesel it will go in and right back out unless there is a baffle or something to direct the flow to the other side of the radiator.  It just seem odd, now if it was a cross flow it wouldn't make as much of a difference because the tubes would direct the flow,  But this is not a cross flow radiator.  We will have to see how it works out.  Thanks for You input

Link to comment
Share on other sites

1 hour ago, B Neal said:

I think it is correct the way the factory intended,  It's just that it doesn't make a lot of sense that it would use the whole radiator.  I've been a pipefitter for 50 years and I know that liquid will choose the path of least resistance,  that said with the inlet and outlet on the same side of the vesel it will go in and right back out unless there is a baffle or something to direct the flow to the other side of the radiator.  It just seem odd, now if it was a cross flow it wouldn't make as much of a difference because the tubes would direct the flow,  But this is not a cross flow radiator.  We will have to see how it works out.  Thanks for You input

And thats exactly how i understand it too Neal ! :unsure:

 easy test to do.... run the engine and feel the radiator left and right, that will tell you what the hot water is doing, heck, even get it up to operating temp and use a infrared temp gun on the left and right side fins 

the guys have confirmed that your rad is stock, there has to be a baffle in there🙄

Edited by 64 kiwi boni
  • Like 1
Link to comment
Share on other sites

Create an account or sign in to comment

You need to be a member in order to leave a comment

Create an account

Sign up for a new account in our community. It's easy!

Register a new account

Sign in

Already have an account? Sign in here.

Sign In Now
 Share

Tired of these Ads? Purchase Enhanced Membership today to remove them!
×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.