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!

Notices

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

Generator stopped when power cord unplugged


this thread has 6 replies and has been viewed 1053 times

Reply
 
Thread Tools Display Modes
  #1  
Old 10-15-2018, 03:05:03 PM
Hummer Hummer is offline
Registered-I
 
Join Date: Feb 2014
Location: Aiken County South Carolina
Posts: 188
Thanks: 50
Thanked 13 Times in 12 Posts
Default Generator stopped when power cord unplugged

Put a new carb on my Powerback 5250 and it was running like a champ with two 1500 watt heaters plugged into it. Have a extension for the 20 Amp 4 prong outlet with one outlet box for each leg. It had been running 24 minutes with new carb and smoothed out just fine.

I decided to check the cycles and got my multimeter and when I unplugged the 240 plug it cut off and won't hit a lick. Nothing smoked but it is not getting any power to ignition circuit??????

I have unplugged and plugged things into extension set up numerous times with no problem but I don't remember unplugging 240 20 amp plug.

What have I done?

Well just went out and pulled on it and it had no compression sounds so I removed plug and put finger over spark plug hole and NO COMPRESSION ! ! ! !

Evidently it took a notion to lose a valve at the very instant I unplugged it????

Anybody else got any other ideas.

The plug was nice and tan. Oil is still on full. There was no mechanical noise at all. Just like I had hit the kill switch ! ! ! !
Reply With Quote
Sponsored Links
  #2  
Old 10-15-2018, 03:39:37 PM
Thaumaturge Thaumaturge is offline
Subscriber
 
Join Date: Mar 2014
Location: Beryl, Utah USA
Posts: 4,638
Thanks: 3,728
Thanked 4,938 Times in 2,061 Posts
Default Re: Generator stopped when power cord unplugged

Pull valve cover. Rotate engine. Watch both valves move. If both don't move you have stuck valve.
If engine runs but gen doesn't put out power pull generator end cover and check brush assembly. As a GREAT general service guide download this Briggs generator manual from my gdrive https://drive.google.com/file/d/1IY9...w?usp=drivesdk (download arrow on top right.)
Doc
__________________
'The time has come', the Walrus said,'To talk of many things: Of shoes and ships and sealing-wax Of cabbages and kings'
Reply With Quote
  #3  
Old 10-15-2018, 04:21:34 PM
Walt Potoniec Walt Potoniec is offline
Subscriber
 
Join Date: Nov 2004
Location: Connecticut
Posts: 13
Thanks: 137
Thanked 3 Times in 3 Posts
Default Re: Generator stopped when power cord unplugged

I Had That Happen Once. The Small Screw That Held The Choke Plate To The Shaft Unscrewed And Got Sucked In And Held The Intake Valve Open. Just A Thought.
Reply With Quote
  #4  
Old 10-15-2018, 09:27:55 PM
Frank DeWitt Frank DeWitt is offline
Subscriber
 
Join Date: Feb 2005
Location: Bloomfield, New York, USA
Posts: 734
Thanks: 143
Thanked 644 Times in 290 Posts
Default Re: Generator stopped when power cord unplugged

Quote:
Originally Posted by Walt Potoniec View Post
I Had That Happen Once. The Small Screw That Held The Choke Plate To The Shaft Unscrewed And Got Sucked In And Held The Intake Valve Open. Just A Thought.
Oh dear, you brought back a memory. The small screw fell out of the throttle plate on my 56 Chevy years ago. Nothing but full throttle. Drove 10 miles using the ignition switch as a bip switch.
Reply With Quote
  #5  
Old 08-31-2019, 01:40:13 PM
Hummer Hummer is offline
Registered-I
 
Join Date: Feb 2014
Location: Aiken County South Carolina
Posts: 188
Thanks: 50
Thanked 13 Times in 12 Posts
Default Re: Generator stopped when power cord unplugged

Well I finally got around to pulling the head off the powerback and looked for the screw and not there. I pulled on the intake valve and it came out very easily.

Apparently the clamps or whatever they are called down on bottom of valve let go?????

Almost no wear on cylinder walls.

I read where there were some Powerbacks with Briggs engines on them. How would I find out if Briggs makes one for a 5250 Powerback.

In the interim I found where one that looks almost new is for sale about three hour drive from me with new carb so I will be heading up tomorrow and get it. Price is very reasonable and I figure I can take the wheels off one I have and put them on the one I am getting.
Reply With Quote
  #6  
Old 08-31-2019, 04:59:58 PM
dkamp dkamp is offline
eMail NOT Working
 
Join Date: Oct 2007
Location: LeClaire, Iowa, USA
Posts: 1,670
Thanks: 34
Thanked 882 Times in 580 Posts
Default Re: Generator stopped when power cord unplugged

The valve keepers popped out? Usually that means a valve spring or valve spring retainer broke...

I'd just replace the valve, spring, retainer, and keeper from a parts engine and give it a go.
Reply With Quote
  #7  
Old 09-02-2019, 06:03:36 AM
Hummer Hummer is offline
Registered-I
 
Join Date: Feb 2014
Location: Aiken County South Carolina
Posts: 188
Thanks: 50
Thanked 13 Times in 12 Posts
Default Re: Generator stopped when power cord unplugged

Only problem is finding a Tecumseh engine to get the parts from. In looking around for another Powerback I found one at good price 175 miles away and I kept looking and stumbled onto a new Generac 8000 50 miles away with .4 on the meter.

Guy got it, decided he didn't need it and I got it for 800.00 with a very exotic extension cord I never saw before. One end plugs into both sockets on 120 volt and the other end has four plugs on it.

This sucker is heavy. Only thing it needs is a round file run in the hole on the handle. In the out and up pull position the detent but doesn't go in it's hole like it was design so a round file or Dremel tool should fix that quickly.
Reply With Quote
Reply

Bookmarks


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
Onan 45 EM has stopped producing power Toxicant Onan Generators 44 05-20-2016 07:48:26 PM
Please help! (Transfer Switch and Power Cord) Twin34 Generators & Electric Motors General Discussion 14 09-01-2011 12:53:31 AM
Military Generator Power Cord? dalmatiangirl61 Military MEP and Aircraft Gen-Sets 7 08-15-2011 07:56:10 PM
Electric Winch power cord David Erb Hit & Miss Gas Engine Discussion 4 09-10-2008 08:34:17 AM


Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 04:10:36 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