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 1960 - 1966 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 07-28-2014, 09:36 PM   #1
bkellett11
Registered User
 
Join Date: Jan 2014
Location: Cabot, Arkansas
Posts: 7
External head gasket leak??

Rebuilt the top of my 327. Initial startup noticed a coolant leak toward the backside of the driver side head. Where the head meets the block. Bad gasket or maybe didn't torque properly? Any input would be awesome!! Thanks.
bkellett11 is offline   Reply With Quote
Old 07-28-2014, 09:39 PM   #2
mud.man.rj
Registered User
 
mud.man.rj's Avatar
 
Join Date: Dec 2011
Location: Creighton Sask. Canada
Posts: 4,121
Re: External head gasket leak??

Maybe the head gasket is in upside down, can happen or are both dowel pins in the block, just ideas. I torque in at least 4-5 steps and then recheck one last time at max torque. Other than that maybe warped cyl head.
mud.man.rj is offline   Reply With Quote
Old 07-28-2014, 09:39 PM   #3
TJ's Chevy
Post Whore
 
TJ's Chevy's Avatar
 
Join Date: Mar 2013
Location: Southern Oregon
Posts: 10,384
Re: External head gasket leak??

Could be both. Sounds like a gasket...or maybe even the head or block is warped?
__________________
1966 Chevy C10 "Project Two Tone" http://67-72chevytrucks.com/vboard/s...d.php?t=596643
1964 GMC "Crustine" semi-build:http://67-72chevytrucks.com/vboard/s...d.php?t=665056
My youtube channel. Username "Military Chevy": https://www.youtube.com/channel/UC_h...fzpcUXyK_5-uiw
TJ's Chevy is offline   Reply With Quote
Old 07-28-2014, 09:42 PM   #4
mud.man.rj
Registered User
 
mud.man.rj's Avatar
 
Join Date: Dec 2011
Location: Creighton Sask. Canada
Posts: 4,121
Re: External head gasket leak??

Pretty much pulling the cyl head and check gasket first, they do say which side faces up on them and if good put a straight edge across the block corner to corner both ways and same on cyl head. Good chance head itself but we are short on details.
mud.man.rj is offline   Reply With Quote
Old 07-28-2014, 09:52 PM   #5
bkellett11
Registered User
 
Join Date: Jan 2014
Location: Cabot, Arkansas
Posts: 7
Re: External head gasket leak??

Brand new top end kit from jegs. Vortec heads.
bkellett11 is offline   Reply With Quote
Old 07-28-2014, 10:26 PM   #6
mud.man.rj
Registered User
 
mud.man.rj's Avatar
 
Join Date: Dec 2011
Location: Creighton Sask. Canada
Posts: 4,121
Re: External head gasket leak??

Well how ever you look at it, it leaks so has to come apart for inspection.
mud.man.rj is offline   Reply With Quote
Old 07-28-2014, 10:43 PM   #7
Oldtruckfanatic
Truck junkie
 
Oldtruckfanatic's Avatar
 
Join Date: May 2006
Location: Reno NV
Posts: 697
Re: External head gasket leak??

Usually when I see that I find something like a small piece of the old gasket stuck to the block or head preventing the gasket from seating properly. There are tons of other causes but that one comes up most when i see a new install leaking.
Oldtruckfanatic 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 01:25 AM.


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