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 06-16-2004, 06:40 PM   #1
dubie
Registered User
 
dubie's Avatar
 
Join Date: May 2000
Location: Flin Flon, Manitoba, Canada
Posts: 8,855
Timing tips???

I am borrowing a buddies timing gun tonight and see if I can get this timing right. I have seen them in use before but have never done it myself. Can you guys give me any step by step tips?
__________________
My name's Tim and I'm a truckaholic

My 56 Chevy shop truck build
http://67-72chevytrucks.com/vboard/s...d.php?t=562795
dubie is offline   Reply With Quote
Old 06-16-2004, 06:57 PM   #2
BOSS
Just here to help
 
BOSS's Avatar
 
Join Date: Jan 2002
Location: Norwood,Mo
Posts: 3,893
Just hook it on the number one plug wire,then atach the positive and negitive to the battery terminals.You should be able to see the marks on the crank,Anything else let me know.
__________________
Support our site



Norwood Survivor
BOSS is offline   Reply With Quote
Old 06-16-2004, 07:00 PM   #3
Chevy67Tk
Registered User
 
Chevy67Tk's Avatar
 
Join Date: Mar 2003
Location: PA
Posts: 349
1. disconnect & plug vacuum advance
2. connect timing light to battery and hook induction clamp to #1 plug wire
3. A). If you light is the advance type (has dial or buttons on back) mark your balancer at the 0 deg. Mark and set dial to the amount of advance you want.
B). Non advance type you mark your balancer at the desired advance you want.
4. Loosen distributor hold down enough to turn but not turn on its own.
5. Start and allow engine warm up to operating temp and running at low idle
6. Aim gun at timing tab and line up your marks by turning the distributor
A.) if using advance type of light the light delays the flash by the amount of degrees that you dialed in and fires it at TDC.
B.) The non advance light fires when the plug fires so you need to use the proper mark on the tab or balancer
7. Shut down engine
8. Tighten dizzy
9. Hook up vac. Advance
__________________
Chevy67Tk is offline   Reply With Quote
Old 06-16-2004, 07:42 PM   #4
crazy longhorn
Fabricate till you "puke"
 
Join Date: Jun 2002
Location: Ill
Posts: 9,403
as far as actual setting, set it where it "lites off"the best, & setup your ign curve around that. on the HEI, somewhere in the range of 8 to 12 BTDC seems to work pretty well.....the hotter the cam, the more initial timing the little chev's seem to like. If you havent recurved, Crane puts out a nice adjustable vac advance can , with different springs for the mech curve(also very good instructions). Good luck,crazyL
__________________
69 longhorn,4" chop,3/5 drop, 1/2 ton suspension/disc brakes,1 1/2" body drop,steel tilt clip, 5.3/Edelbrock rpm intake/600 carb, Hooker streetrod shorties,2 1/2" exhaust/ H pipe/50's Flows , 6 spd Richmond trans,12 bolt/ 3.40 gears....
crazy longhorn 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 01:13 PM.


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