Hard Start Question - 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 03-07-2002, 06:48 PM
Member
 
Join Date: Dec 2001
Location: Florida
Posts: 114
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post Hard Start Question

I have a 1969 350 chevy engine that is hard to start. As the engine first starts to turn over sometimes I get a slight puff back into the carburator, and the engine has to turn over several times before it will start. Once it starts it runs great during any type of test you put it thru. It does this wheather it is hot or cold. I just recently put in a new pertronix electronic module, rebuilt the carb, fixed a vacuum leak, and the timing is right on at 4 degrees before top dead center. This car used to start so fast you couldn't even hear the engine turn over. Any suggestions?????

[ March 10, 2002: Message edited by: Jim Weeks ]</p>

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 03-08-2002, 02:46 AM
Tom Tom is offline
Member
 
Join Date: May 2001
Location: agawam ma
Posts: 323
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

you probably have some time chain stretch kick the timing back a bit or till it starts quicker
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 03-11-2002, 09:56 AM
dmorris1200's Avatar
doesn't play well with others
 
Last photo:
Join Date: Feb 2002
Location: Maine
Age: 49
Posts: 1,834
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

Quick test for checking your timing chain. Remove your distributor cap, put a ratchet on your crankshaft bolt, and work the crank back and forth. The longer it takes the distributor rotor to start moving the more slack you have in your chain. The distributor is driven by the cam so if it's not moving when you rotate the crank neither is the cam.
__________________
BUILT FORD TOUGH
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 03-11-2002, 12:48 PM
Henry Highrise's Avatar
Lost in the 60's
 
Last wiki edit: Removing stuck fasteners Last photo:
Join Date: Dec 2001
Location: Dixieland
Age: 69
Posts: 15,189
Wiki Edits: 4

Thanks: 0
Thanked 10 Times in 9 Posts
Post

Try setting your timing at about 8 to 10 degrees BTDC Set timimg with vacumn advance hose pulled off of dist and plug it. When you get your timing set put the vacumn hose back on advance.

[ March 11, 2002: Message edited by: Henry Highrise ]</p>
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 03-15-2002, 04:50 PM
Member
 
Join Date: Dec 2001
Location: Florida
Posts: 114
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

You guys were exactly right. I checked for the slack timing chain and sure enough it had a lot of slack in it. After experimenting with the timeing it seamed to run best at 8 degrees BTDC so that is what I set it at. The car runs better, and has stopped coughing up the carburator, but still does not start very well. I have an idea there is so much slack in that timing chain I will probably have to replace it to get those quick starts again. Thanks so much for your input.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 03-19-2002, 04:15 AM
Tazz
 
Last photo:
Join Date: Jun 2001
Location: amherst,ohio
Age: 66
Posts: 2,049
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Cool

Does sound like timing to me.
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 03-19-2002, 04:30 AM
Member
 
Join Date: Feb 2002
Location: southeastern-ohio
Posts: 35
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Post

It sounds like the chain is the problem to me also. If you put a new chaain in it you may want to consider a quality double roller chain or even a gear drive if your gonna run it hard.These two types of chains will keep your timing more accurate with less stretching than single row chain.


NOVA JEFF
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 10:56 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.