The 1947 - Present Chevrolet & GMC Truck Message Board Network







Register or Log In To remove these advertisements.

Go Back   The 1947 - Present Chevrolet & GMC Truck Message Board Network > 47 - Current classic GM Trucks > The 1967 - 1972 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-10-2005, 01:43 AM   #1
skokie
Registered User
 
skokie's Avatar
 
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,334
Bad Thermostat?

I got the intake all done and fired it up tonight. Temp guage got to almost H then I shut it down. I checked the top radiator hose and it was still flexible like there was no water coming through. I filled up the radiator before I started it. Could it be a bad thermostat?
__________________
RIP to my son Dylan. 5/17/2002 - 8/18/2018
If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started.
https://slothforpedcancer.org



68 build thread
http://67-72chevytrucks.com/vboard/s...d.php?t=223234
skokie is offline   Reply With Quote
Old 06-10-2005, 08:01 AM   #2
neonlarry
Registered User
 
neonlarry's Avatar
 
Join Date: Feb 2002
Location: Vacaville, CA
Posts: 2,746
You could have an air pocket under the t-stat (this can cause it not to open). I like to drill a small bleeder hole in them so this won't happen.
__________________
70 C/10 Light Red 350/TH350, HEI, Duals w/40 series Flows, 91 seat, LED taillights
99 Pontiac S/C GTP, SLP Ram Air hood, GMPP Konis & springs
95 Neon ACR, MP PCM, AFX UDP, 3.0 CAI
neonlarry is offline   Reply With Quote
Old 06-10-2005, 10:16 AM   #3
skokie
Registered User
 
skokie's Avatar
 
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,334
Im going to change out the thermostat tonight. Where would you drill this hole on the thermostat?
__________________
RIP to my son Dylan. 5/17/2002 - 8/18/2018
If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started.
https://slothforpedcancer.org



68 build thread
http://67-72chevytrucks.com/vboard/s...d.php?t=223234
skokie is offline   Reply With Quote
Old 06-10-2005, 11:22 AM   #4
jhow66
Registered User
 
jhow66's Avatar
 
Join Date: Jun 2002
Location: Knoxville Tenn.
Posts: 3,058
see if this will do
Attached Images
 
__________________
56 Chevy Bel-Air 2dr. HT (purchased new)
71 Chevy Cheyenne SWB PU (502HO)
65 GMC short bed step--work in progress and my gofer
jhow66 is offline   Reply With Quote
Old 06-10-2005, 11:27 AM   #5
fastwillie 696969
~Rest In Peace~
 
fastwillie 696969's Avatar
 
Join Date: May 2005
Location: CALIFORNIA NOR CAL
Posts: 9,707
for 4 bucks put a new one in
__________________
is it fast ? it has a lighting bolt donut?


B___H please, I can remove 90% of your so called "beauty" with a kleenex
fastwillie 696969 is offline   Reply With Quote
Old 06-11-2005, 12:10 AM   #6
skokie
Registered User
 
skokie's Avatar
 
Join Date: Oct 2003
Location: San Jose Ca.
Posts: 3,334
New superstant 180 in and problem solved. The other was was stuck. Not sure why. It wsa brand new.
__________________
RIP to my son Dylan. 5/17/2002 - 8/18/2018
If you want to know more about rare forms of pediatric cancer or if you want to help fund pediatric cancer research, please check out the website for the non-profit I started.
https://slothforpedcancer.org



68 build thread
http://67-72chevytrucks.com/vboard/s...d.php?t=223234
skokie is offline   Reply With Quote
Old 06-11-2005, 09:20 AM   #7
Blue4x4
Senior Member
 
Blue4x4's Avatar
 
Join Date: Mar 2003
Location: Sparks, NV
Posts: 790
I went thru 4 t-stats. Then drilled a small hole in the first one.......It worked for me.
Blue4x4 is offline   Reply With Quote
Old 06-11-2005, 12:50 PM   #8
pjmoreland
Senior Member

 
pjmoreland's Avatar
 
Join Date: Jan 2005
Location: CA
Posts: 5,465
I have a suspicion that if intake manifold gaskets are used that block the heat riser passages that run through the middle of the manifold, the thermostat has a hard time warming up when there isn't any coolant/water in the manifold yet. I've struggled with this issue many times. I like the idea of drilling a little hole in the thermostat.
pjmoreland is offline   Reply With Quote
Reply

Bookmarks


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

Forum Jump


All times are GMT -4. The time now is 04:37 PM.


Powered by vBulletin® Version 3.8.11
Copyright ©2000 - 2024, vBulletin Solutions Inc.
Copyright 1997-2022 67-72chevytrucks.com