72 chevy 350 timing - Hot Rod Forum : Hotrodders Bulletin Board
Hotrodders.com -- Hot Rod Forum



Register FAQ Search Today's Posts Unanswered Posts Auto Escrow Insurance Auto Loans
Hot Rod Forum : Hotrodders Bulletin Board > Tech Help> Engine
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 08-30-2003, 11:33 PM
New Member
 
Join Date: Jun 2003
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Question 72 chevy 350 timing

Hello,

I need to reset my timing on my 350. No matter how i move the distributor it still sounds like crap. How should i go about finding my TDC without taking my head off? Also are there different timing tabs for the sbc? I have heard there was and if so what do i need for my 73 sbc. There is no timing tab on the engine. So can some one tell me how they time there sbc?

Thanks!!!!

Steve

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 08-31-2003, 01:13 AM
DoubleVision's Avatar
Not Considered a Senior Member
 
Last photo:
Join Date: Oct 2002
Location: Heart Of Dixie
Age: 40
Posts: 10,654
Wiki Edits: 0

Thanks: 15
Thanked 58 Times in 55 Posts
for the year model SBC you have, the timing mark should be at the 2 o`clock position, since there is no mark, go to your local parts store and get a aftermarket chrome timing tab, it should run about $4.00 or so. Next step, install the tab and pop the distributor cap, have a buddy bump the engine over until it`s pointing at the number 1 wire terminal on the distributor cap, then pull the distributor out, then take out the number 1 spark plug which will be the first one on the drivers side, place your thumb over the spark plug hole lightly, and have your buddy bump the engine over until you feel the cylinder pressure against your thumb, find the timing mark on the harmonic balencer, and bump the engine over until the mark lines up with 12 degree`s before top dead center, if you overshoot the mark, you`ll have to do it over again until you can get it there on the compression stroke or the one that your thumb feels cylinder pressure. restab the distributor and again point the rotor at the number 1 spark plug wire terminal, when you drop the distributor, the trick is to get it to fall into the oil pump`s drive shaft, is why you start with the cap off and rotor already pointing at number 1, if it doesn`t fall into the oil pump drive shaft, then use a long screw driver and move it until you can stab the distributor in all the way. tighten the distributor back down, reconnect the cap and power wire, reinstall the spark plug, and fire the engine off.
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 08-31-2003, 07:44 AM
New Member
 
Join Date: Jun 2003
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
I will give it a try and let you know !!

Thanks a bunch!!
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-31-2003, 06:58 PM
New Member
 
Join Date: Jun 2003
Posts: 13
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Unhappy

OK! Here is what i have done so far...... I pulled all the plugs and bumped the engine over with the starter and got the distributor pointeng a plug #1. The rocker arms on cylinder #1 looks like they both are closed because i can move both arms with ease. The timing mark on the damper is under the water pump at 12 o-clock. If i bump it some more to say about 16 degree's one of the valves starts to bind and the roter starts to point to #8 cylinder. So does this mean i have the wrong damper on my engine or was the distributor put in wrong?
So should i set the timimg mark at 12 o-clock and rotor pointing at #1 plug and then set my ststic ignition timing? Should it run like this ok?

Thanks !!!
Please help!!!
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 09-01-2003, 08:05 PM
1BAD80's Avatar
The Smell of Nitro in the morn
 
Last wiki edit: How to adjust valves Last photo:
Join Date: Jun 2001
Location: Mich
Posts: 2,423
Wiki Edits: 2

Thanks: 0
Thanked 3 Times in 2 Posts
You should put it at 10 or 12 degrees not 16.
You may be 180* off on timing.
__________________
Luv the smell of NITRO in the morning.
Reply With Quote Quick reply to this message

Recent Engine posts with photos

Quick Reply
Message:
Options

Register Now

In order to be able to post messages on the Hot Rod Forum : Hotrodders Bulletin Board forums, you must first register.
Please enter your desired user name (usually not your first and last name), your email address and other required details in the form below.
User Name:
If you do not want to register, fill this field only and the name will be used as user name for your post.
Password
Please enter a password for your user account. Note that passwords are case-sensitive.
Password:
Confirm Password:
Email Address
Please enter a valid email address for yourself.
Email Address:

Log-in

Human Verification

In order to verify that you are a human and not a spam bot, please enter the answer into the following box below based on the instructions contained in the graphic.




Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools

Posting Rules
You may post new threads
You may 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
Trackbacks are On
Pingbacks are On
Refbacks are On



All times are GMT -6. The time now is 07:45 AM.


Powered by vBulletin® Version 3.8.7
Copyright ©2000 - 2014, vBulletin Solutions, Inc.
Search Engine Optimization by vBSEO 3.6.0 PL2
Copyright Hotrodders.com 1999 - 2012. All Rights Reserved.