Engine starting problem..350 sbc.. - 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 07-24-2005, 05:56 PM
freeman437's Avatar
New Member
 

Last journal entry: update..more pics..083105
Last photo:
Join Date: Jun 2004
Location: canada
Age: 63
Posts: 16
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Engine starting problem..350 sbc..

As the story goes...I have a 1967 Pontiac Beaumont with a 350 sbc v-8 from a 74 camaro. The problem is this...If I charge the battery up(new battery), the car starts right away...but after a short drive the car will not start unless I jumper the contacts between the starter and solenoid. This is the same for warm or cold weather. The alternator is brand new and a meter test at the battery confirms the charging system is working. I have replaced the neutral switch on the column as well. What's the solution, short of replacing the wiring and ignition switch at the dash?

    Advertisement
Reply With Quote Quick reply to this message
Sponsored Links
Advertisement
 
  #2 (permalink)  
Old 07-24-2005, 06:50 PM
poncho62's Avatar
Out of the Loop Moderator
 
Last wiki edit: Streetbeasts links
Last journal entry: at car show
Last photo:
Join Date: Oct 2003
Location: Hanover, Ontario, Canada
Age: 62
Posts: 16,898
Wiki Edits: 5

Thanks: 20
Thanked 261 Times in 213 Posts
My 62 Pontiac tends to do the same thing at times. It's a combination of heat on the solenoid and older wiring. I ran 12 volts from the battery to a spring loaded toggle switch and to the solenoid. When it acts up, I use that switch. Sometimes, I have to turn the ignition switch and hit the toggle at the same time.

The pic in your journal show headers...........source of most of the heat. a heat sheid may help.
__________________
Ontario Rodders

Budget RVs
Reply With Quote Quick reply to this message
  #3 (permalink)  
Old 07-24-2005, 07:49 PM
67 Deuce 4 Me's Avatar
Bowtie or Die!
 
Last photo:
Join Date: Dec 2004
Location: TN
Age: 43
Posts: 637
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
We see that alot at the shop. The voltage to the starter sol start wire get low,old wiring and switches etc.I simply wire a relay up to the starter and use the start wire for my signal, put the load wire on the starter start post.the other one to the battery, and ground it at the starter somewhere.Works every time!
Reply With Quote Quick reply to this message
  #4 (permalink)  
Old 08-13-2005, 02:31 PM
freeman437's Avatar
New Member
 

Last journal entry: update..more pics..083105
Last photo:
Join Date: Jun 2004
Location: canada
Age: 63
Posts: 16
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
starting problems...350 sbc

what sort of spring loaded toggle switch should I use..can you send a small diagram
Reply With Quote Quick reply to this message
  #5 (permalink)  
Old 08-13-2005, 03:31 PM
docvette's Avatar
Hotrodders.com Moderator
 
Last wiki edit: Rebuild an alternator Last photo:
Join Date: Mar 2004
Location: Lafayette, california
Age: 62
Posts: 7,362
Wiki Edits: 12

Thanks: 0
Thanked 6 Times in 3 Posts
Starter Solenoid

Doc here,

You may want to consider changing the starter solenoid itself.

The Coil activation Contacts (The "S" Terminal internally) May be pitted mis~aligned, or the energize coil windings may just have some broken down insulation, requiring more power to activate the plunger..or the plunger May actually be sticky.

To do as Deuce Suggested will require a relay AND/OR an extra Switch (if you want a separate one at all) the relay Wired , relay coil to ground, the other wire relay coil to the existing "Start" wire through a 5 amp fuse on to the existing "S" wire from the solenoid..so when you hit start with the key, the relay goes "Click"

Then the contacts, Normally open contact (N.O.) to a fused or linked 12 volt battery source (the Battery or Big bolt on the starter) then the Center wiper (C.W.)(movable contact) to the "S" terminal on the solenoid...

This configuration Will deliver More current to the solenoid coil..enabling it to activate where it wouldn't before..

However , My opinion is that something is WRONG with the solenoid itself and that needs addressing..rather than modification to make it too operate.

If the contacts are pitted, connections are loose, or plunger sticky or coil insulation braking down, you should replace the solenoid.... after all..the stocker didn't need a relay...you shouldn't either.. and better now than in the desert 250 miles away from anywhere you couldn't order parts from anyways ... ( I grin cuz my sis lives in just that town..and Bro in law makes a killing Driving TowTruck!...

Your Call on that one..I think a replacement solenoid is somewheres between $7 and $12 bucks...

Doc
__________________
Aftermarket Solutions
Electronic & Electrical
Innovations
Reply With Quote Quick reply to this message
  #6 (permalink)  
Old 08-14-2005, 08:25 AM
freeman437's Avatar
New Member
 

Last journal entry: update..more pics..083105
Last photo:
Join Date: Jun 2004
Location: canada
Age: 63
Posts: 16
Wiki Edits: 0

Thanks: 0
Thanked 0 Times in 0 Posts
Engine starting problems..350 sbc

Thanks for the advice...it's a strange problem..about a year long now...I will change the solenoid and also look at replacing the ignition. Short of taking it to a shop...The car was a heinz 57 makeover when I purchased...has an aluminum custom dash with Stewart Warner gauges, so I know what to expect under the dash...a mess. The car, being Canadian is part Pontiac/Chev/Chevelle/GTO/Tempest. The ignition is 66-67 Pontiac. Have to find a replacement. /mkf
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:
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


Similar Threads
Thread Thread Starter Forum Replies Last Post
Cooling Problem for SBC 350 PLZ help!! purple1967camaro Engine 6 04-07-2010 12:28 AM
Engine tune up specs 350 sbc Bluepen Engine 4 03-14-2006 01:33 PM
Engine stalling problem JamesRS Engine 3 01-30-2006 11:22 AM
Late model 350 SBC Question Smoker113 Engine 3 02-19-2005 10:12 PM
350 ENGINE GONZALEZ Engine 27 10-05-2002 11:16 AM


All times are GMT -6. The time now is 03:26 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.