Generators and Electric Motors
[Home] - [HELP] - [Forums] - [Groups] - [Classified Ads] - [Subscribe] - [Books] - [Sponsors] -

Go Back   SmokStak > SmokStak® Vintage Electrical Equipment > Generators & Electric Motors General Discussion
Forgot Password? Join Us!


Generators & Electric Motors General Discussion Antique Generators and Old Electric Motors: Questions and answers about restoring and showing old power generation systems.

Generators & Electric Motors General Discussion

Delco starting problem

this thread has 1 replies and has been viewed 1725 times

Thread Tools Display Modes
Old 05-06-2007, 06:33:24 PM
Ronnie Dykstra Ronnie Dykstra is offline
Join Date: Aug 2005
Location: Central, Iowa USA
Posts: 22
Thanks: 0
Thanked 0 Times in 0 Posts
Default Delco starting problem

I have a model 850 Delco. I got it running for the first time last night. However the starting lever won't stay up. The engine has plenty of speed. I stuck a screw driver between the starting lever and coil of wire. It had some magnatism. But it won't hold up the lever bt itself.

Reply With Quote
Sponsored Links
Old 05-06-2007, 10:19:54 PM
Don C. Wiley Don C. Wiley is offline
In Memory Of
Join Date: Nov 2004
Location: Sparta, Illinois USA
Posts: 783
Thanks: 474
Thanked 367 Times in 118 Posts
Default Re: Delco starting problem


Your generator isn't producing enough current to hold the starting switch armature up in the run position.

You should be producing aroun 38 to 40 volts when the generator is charging, however it isn't the voltage that holds the armature up, but the current. Several things can cause this. Your brushes may not be making "total" contact with the comutator, comutator not "smooth" and clean, brushes not working freely in their holders, engine not running fast enough, battery fully charged, bad connection from generator to battery. You need enough load to draw enough current to cause enough magnatizum to hold the armature up. If your battery is fully charged you may need to hook up some lights or a motor to draw current to hold the armature up. A rubber band or stick to hold the armature up works, but isn't recomended

The small roller on one side of the armature holds the ignition current to the coil connected. When the charge current drops below a set amount the armature will drop down and disconnect the power to the coil, killing the engine.

It's a good idea to have a voltmeter connected as well as the ampmeter on the control panel. That way you can monitor the charging system better.
The charge current on the ampmeter on the control panel should be around 10 to 12 amps, with about 39 volts.

I hope this will solve your problem. No warrenties expressed or implied.

"DELCO DON" Southern Illinois
Reply With Quote


Thread Tools
Display Modes

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

F o r u m Jump

Similar Threads Chosen at Random
Thread Thread Starter F o r u m Replies Last Post
Delco 850 special starting instructions Mike Cushway Delco and other Low Voltage DC Light Plants 2 10-23-2018 12:48:34 PM
Starting/stopping a Delco Light 850? George Andreasen Delco and other Low Voltage DC Light Plants 6 09-30-2016 03:10:16 PM
JC Starting Problem Al Jacobson Onan Generators 5 02-13-2010 05:41:08 PM
Delco 850 Starting Question MBreen254 Generators & Electric Motors General Discussion 6 04-23-2009 06:57:41 PM
starting a delco 850 with dead batteries Delco Generators & Electric Motors General Discussion 10 12-18-2005 12:20:45 PM

Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 02:30:02 PM.

Smokstak and Enginads site search!

All use is subject to our TERMS OF SERVICE
SMOKSTAK® is a Registered Trade Mark - A Community of Antique Engine Enthusiasts
Copyright © 2000 - 2019 by Harry Matthews P.O. Box 5612 - Sarasota, FL 34277