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 1947 - 1959 Chevrolet & GMC Pickups Message Board

Web 67-72chevytrucks.com


Reply
 
Thread Tools Display Modes
Old 06-19-2016, 02:28 PM   #1
uber cool
Registered User
 
Join Date: Jan 2015
Location: Lancashire, UK
Posts: 299
270 GMC engine valve lash adjustment

Would you adjust the valve lash on the 270 GMC when hot or cold? I've found 2 guides one suggested adjusting when hot and one suggesting adjusting when cold. Both guides say Exhaust valves at 20 thou and inlets at 12 thou.

Which way do you do yours?
__________________
my rides
59 GMC Apache fleetside http://67-72chevytrucks.com/vboard/s...d.php?t=684337
68 VW Westy camper
uber cool is offline   Reply With Quote
Old 06-19-2016, 02:54 PM   #2
OrrieG
Registered User
 
OrrieG's Avatar
 
Join Date: Jun 2006
Location: Idaho
Posts: 8,800
Re: 270 GMC engine valve lash adjustment

My memory is running temperature. I have the original tool my grandfather and dad used for adjusting GM six valves, a combo wrench / screwdriver affair. An old valve cover with the top cut off helps keep the oil at bay too.
__________________
1959 Chevy Short Fleetside w/ 74 4WD drive train (current project) OrrieG Build Thread
1964 Chevelle Malibu w/ 355-350TH (daily driver)
Helpful AD and TF Manual Site Old Car Manual Project
OrrieG is offline   Reply With Quote
Old 06-27-2016, 02:17 PM   #3
uber cool
Registered User
 
Join Date: Jan 2015
Location: Lancashire, UK
Posts: 299
Re: 270 GMC engine valve lash adjustment

thanks fella, sorted now , runs sweet
__________________
my rides
59 GMC Apache fleetside http://67-72chevytrucks.com/vboard/s...d.php?t=684337
68 VW Westy camper
uber cool 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 12:19 PM.


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