350 Chevy starter - 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> Electrical
User Name
Password
lost password?   |   register now

Reply
 
LinkBack Thread Tools
  #1 (permalink)  
Old 02-07-2012, 01:58 PM
Bobs36ford's Avatar
Registered User
 

Last journal entry: Video of new upholstery
Last photo:
Join Date: Sep 2010
Location: virginia
Age: 79
Posts: 101
Wiki Edits: 0

Thanks: 57
Thanked 0 Times in 0 Posts
350 Chevy starter

Hi
My ride has a 350 Chevy engine. When engine is cold it starts right up. After engine warms up ....when starting it turns over real slow and sounds like battery problem. I know it is not a battery problem because no matter how cold it is it will start right away. Could this be a solenoid problem?

Bob

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 02-07-2012, 03:29 PM
T-bucket23's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Engine basic condition - how to check Last photo:
Join Date: Aug 2005
Location: Massachusetts
Age: 57
Posts: 5,362
Wiki Edits: 26

Thanks: 9
Thanked 145 Times in 128 Posts
Classic starter heat soak. You can try a shield but usually they don't work.
What brand starter is it. If it is one of those cheap chrome ones, throw it away and get a good starter.
A remote solenoid will not help if the starter is turning slowly
__________________
Artificial Intelligence is no match for Natural Stupidity



Chet
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 02-07-2012, 05:44 PM
EOD Guy's Avatar
Registered User
 
Last photo:
Join Date: Aug 2010
Location: Alabama
Posts: 2,153
Wiki Edits: 0

Thanks: 1
Thanked 156 Times in 144 Posts
My heat shield worked great.
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 02-07-2012, 06:43 PM
adantessr's Avatar
'23 T-Bucket Pickup
 
Last wiki edit: Troubleshooting ignition Last photo:
Join Date: Jun 2010
Location: South Charleston , WV
Age: 62
Posts: 1,559
Wiki Edits: 3

Thanks: 54
Thanked 23 Times in 20 Posts
Quote:
Originally Posted by Bobs36ford
Hi
My ride has a 350 Chevy engine. When engine is cold it starts right up. After engine warms up ....when starting it turns over real slow and sounds like battery problem. I know it is not a battery problem because no matter how cold it is it will start right away. Could this be a solenoid problem?

Bob
I had one of the small starters that did the same thing. Acted like a dead battery when it was hot. Replaced with a regular starter and eliminated the problem.
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 02-07-2012, 07:20 PM
gonzo08383's Avatar
Registered User
 

Last journal entry: brakes
Last photo:
Join Date: Jan 2012
Posts: 202
Wiki Edits: 0

Thanks: 5
Thanked 18 Times in 14 Posts
starter is heat soaked. wrap it with heat wrap or install a cheap heat shield. i had this problem before. of course if the damage is already done the starter is on its way out no matter what.
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 02-07-2012, 08:49 PM
Bobs36ford's Avatar
Registered User
 

Last journal entry: Video of new upholstery
Last photo:
Join Date: Sep 2010
Location: virginia
Age: 79
Posts: 101
Wiki Edits: 0

Thanks: 57
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by T-bucket23
Classic starter heat soak. You can try a shield but usually they don't work.
What brand starter is it. If it is one of those cheap chrome ones, throw it away and get a good starter.
A remote solenoid will not help if the starter is turning slowly
I do not know what brand...I'll check it out

Thanks

Bob
Reply With Quote Quick reply to this message
  #7 (permalink)  
Old 02-07-2012, 08:53 PM
Bobs36ford's Avatar
Registered User
 

Last journal entry: Video of new upholstery
Last photo:
Join Date: Sep 2010
Location: virginia
Age: 79
Posts: 101
Wiki Edits: 0

Thanks: 57
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by gonzo08383
starter is heat soaked. wrap it with heat wrap or install a cheap heat shield. i had this problem before. of course if the damage is already done the starter is on its way out no matter what.

Thanks for the info

Bob
Reply With Quote Quick reply to this message
  #8 (permalink)  
Old 02-07-2012, 09:44 PM
vicrod's Avatar
life is a ride
 

Last journal entry: 2014
Last photo:
Join Date: Nov 2005
Location: Telford, PA
Age: 72
Posts: 1,361
Wiki Edits: 0

Thanks: 0
Thanked 63 Times in 59 Posts
You could check the timing. Too much advance can cause resistance to piston travel when the spark fires to early on the upstroke.
Also check the mechanical and vacuum advance for proper operation.
An easy test is disconnect the ignition wire and try cranking the engine to rule out the timing issue.

vicrod
Reply With Quote Quick reply to this message
  #9 (permalink)  
Old 02-08-2012, 07:46 AM
Bobs36ford's Avatar
Registered User
 

Last journal entry: Video of new upholstery
Last photo:
Join Date: Sep 2010
Location: virginia
Age: 79
Posts: 101
Wiki Edits: 0

Thanks: 57
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by vicrod
You could check the timing. Too much advance can cause resistance to piston travel when the spark fires to early on the upstroke.
Also check the mechanical and vacuum advance for proper operation.
An easy test is disconnect the ignition wire and try cranking the engine to rule out the timing issue.

vicrod
Thanks, I will check out the timing issue first.

Bob
Reply With Quote Quick reply to this message
  #10 (permalink)  
Old 02-09-2012, 01:38 PM
Bobs36ford's Avatar
Registered User
 

Last journal entry: Video of new upholstery
Last photo:
Join Date: Sep 2010
Location: virginia
Age: 79
Posts: 101
Wiki Edits: 0

Thanks: 57
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by vicrod
You could check the timing. Too much advance can cause resistance to piston travel when the spark fires to early on the upstroke.
Also check the mechanical and vacuum advance for proper operation.
An easy test is disconnect the ignition wire and try cranking the engine to rule out the timing issue.

vicrod
If the timing is off ,would the engine turn over slowly all the time...not just when its hot?

Bob
Reply With Quote Quick reply to this message
  #11 (permalink)  
Old 02-09-2012, 02:25 PM
starnest's Avatar
elkyholic
 

Last journal entry: Center Link Installed
Last photo:
Join Date: Apr 2007
Location: Virginia Beach
Age: 60
Posts: 327
Wiki Edits: 0

Thanks: 4
Thanked 5 Times in 4 Posts
I've heard of too much advance causing an engine to turn over slow, but I've never actually seen it happen. Like Bob, I think if timing is a factor it would be the same hot or cold.

I have seen slow starting with hot engines, usually the problem occurs with headers too close to the starter.

In practice, the resistance of electrical components increase with temperature. This is essentially true for every electrical component from switches to wiring.

According to Ohm's law (I=E/R, current equals voltage divided by resistance) the current through the starter motor decreases as the resistance (temperature) increases.
The starter motor force is proportional to the current, the rotation rate (speed) is proportional to the force generated by the current. Thus, when the starter gets hot it turns slower.

In most cases the difference is not noticable, but sometimes (especially if the windings in the motor are partially shorted/open or the brushes are glazed/broken) the difference can cause the motor to spin slowly or not at all. In these cases the starter motor will eventually fail.

First, verify that your starter is good, remember it will work good on the bench with no load attached. You need to disassemble and check the brushes, armature windings, etc. Look for cracking or burn marks in the coating of the windings.

If the starter checks out and you have a heat source (headers) adjacent to the starter motor, then look at a heat shield for the starter and/or heat wrap for the headers.
Reply With Quote Quick reply to this message
  #12 (permalink)  
Old 02-09-2012, 03:14 PM
Bobs36ford's Avatar
Registered User
 

Last journal entry: Video of new upholstery
Last photo:
Join Date: Sep 2010
Location: virginia
Age: 79
Posts: 101
Wiki Edits: 0

Thanks: 57
Thanked 0 Times in 0 Posts
Quote:
Originally Posted by starnest
I've heard of too much advance causing an engine to turn over slow, but I've never actually seen it happen. Like Bob, I think if timing is a factor it would be the same hot or cold.

I have seen slow starting with hot engines, usually the problem occurs with headers too close to the starter.

In practice, the resistance of electrical components increase with temperature. This is essentially true for every electrical component from switches to wiring.

According to Ohm's law (I=E/R, current equals voltage divided by resistance) the current through the starter motor decreases as the resistance (temperature) increases.
The starter motor force is proportional to the current, the rotation rate (speed) is proportional to the force generated by the current. Thus, when the starter gets hot it turns slower.

In most cases the difference is not noticable, but sometimes (especially if the windings in the motor are partially shorted/open or the brushes are glazed/broken) the difference can cause the motor to spin slowly or not at all. In these cases the starter motor will eventually fail.

First, verify that your starter is good, remember it will work good on the bench with no load attached. You need to disassemble and check the brushes, armature windings, etc. Look for cracking or burn marks in the coating of the windings.

If the starter checks out and you have a heat source (headers) adjacent to the starter motor, then look at a heat shield for the starter and/or heat wrap for the headers.
The header is about 1 inch from starter, I'm trying heat shield
first. Thanks a million......Bob
Reply With Quote Quick reply to this message
  #13 (permalink)  
Old 02-09-2012, 03:34 PM
T-bucket23's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Engine basic condition - how to check Last photo:
Join Date: Aug 2005
Location: Massachusetts
Age: 57
Posts: 5,362
Wiki Edits: 26

Thanks: 9
Thanked 145 Times in 128 Posts
Quote:
Originally Posted by Bobs36ford
If the timing is off ,would the engine turn over slowly all the time...not just when its hot?

Bob
It will be worse when it is hot
__________________
Artificial Intelligence is no match for Natural Stupidity



Chet
Reply With Quote Quick reply to this message
  #14 (permalink)  
Old 02-09-2012, 08:48 PM
vicrod's Avatar
life is a ride
 

Last journal entry: 2014
Last photo:
Join Date: Nov 2005
Location: Telford, PA
Age: 72
Posts: 1,361
Wiki Edits: 0

Thanks: 0
Thanked 63 Times in 59 Posts
A hot engine (combustion chamber) will fire the FA mixture more rapidly than when cold.
In extreme cases, when residual fuel is available, an engine will "run-on" after the ignition is turned off.
Not sure it's your problem but it happens.

vicrod
Reply With Quote Quick reply to this message

Recent Electrical 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:
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Chevy 4.3 V6 starter on a 350.. RickyDoors Engine 5 11-23-2010 02:02 PM
Starter shifting and grinding.. new starter? Where does starter brace go? 84Z Engine 8 11-12-2007 03:44 PM
starter 51 chevy Who Engine 2 10-29-2005 06:56 PM
chevy starter shieldbreaker Engine 5 01-31-2005 09:29 PM
72 Chevy starter.... nqcs Electrical 6 03-16-2004 05:19 PM


All times are GMT -6. The time now is 11:58 PM.


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.