Generators and Motors
[Home] - [HELP] - [Forums] - [Library] - [Photo Gallery] - [Groups] - [Classified Ads] - [Subscribe] - [Links] - [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

Would you trust this?


this thread has 15 replies and has been viewed 1147 times

Reply
 
Thread Tools Display Modes
  #11  
Old 10-25-2018, 08:46:44 PM
Thaumaturge Thaumaturge is offline
Subscriber
 
Join Date: Mar 2014
Location: Beryl, Utah USA
Posts: 4,065
Thanks: 3,092
Thanked 4,138 Times in 1,750 Posts
Default Re: Would you trust this?

Give it first a good vacuuming, then high pressure air cleaning. Then a good soap and water bath followed by lots of fresh water rinse. Let dry a full week in a low humidity environment. Paint over any visible copper where varnish may have been nicked. DO NOT bend or disturb any windings, that may only make it worse. IF ohm tests show no shorts between windings and frame then maybe subject windings to hipot test. You should be more concerned with leakage between windings and frame than winding to winding. If all shows good lightly clean surface rust of laminations, wipe down with alcohol then spray clear laquer over laminations. Rusty laminations aren't really a concern as they will only decrease efficiency, not prevent operation.

Short of vacuum dip varnish treating of coils that's about the best you could do.
Doc
__________________
"There is always some yayhoo turning left!" - my father.
Reply With Quote
Sponsored Links
  #12  
Old 10-26-2018, 05:46:25 AM
georgineer georgineer is offline
Registered
 
Join Date: Oct 2016
Location: Portsmouth, Hampshire, England
Posts: 30
Thanks: 5
Thanked 22 Times in 13 Posts
Default Re: Would you trust this?

Quote:
Originally Posted by Thaumaturge View Post
... Then a good soap and water bath followed by lots of fresh water rinse. ...
Doc
Doc,

I'm not sure about using soap as it can be very difficult to wash out of crevices, but otherwise I agree with all your thaumaturgic advice. The main purpose of the wash, as I see it, is to remove any salts and other things which attract moisture, and to leave no deposits.

George
Reply With Quote
The Following User Says Thank You to georgineer For This Post:
  #13  
Old 10-27-2018, 02:00:11 PM
Railroads Railroads is offline
Registered-III
 
Join Date: Sep 2013
Location: North Carolina, USA
Posts: 1,439
Thanks: 963
Thanked 1,112 Times in 461 Posts
Default Re: Would you trust this?

After giving the machine a good cleaning and let dry out for a week then get a spray can of glyptal https://www.electro-wind.com/glyptal...quart-can.html

Robert
Reply With Quote
The Following User Says Thank You to Railroads For This Post:
  #14  
Old 10-27-2018, 02:48:37 PM
cjjmw cjjmw is offline
Registered
 
Join Date: Oct 2018
Location: Westville, New Jersey
Posts: 46
Thanks: 39
Thanked 2 Times in 2 Posts
Default Re: Would you trust this?

Quote:
Originally Posted by Railroads View Post
After giving the machine a good cleaning and let dry out for a week then get a spray can of glyptal https://www.electro-wind.com/glyptal...quart-can.html

Robert
I washed it out the best I could without disassembling it.
I've had a few tell me the rusty stator core won't matter. I hope they're right.
Attached Thumbnails
Click image for larger version

Name:	IMG_20181026_170949.jpg
Views:	31
Size:	198.7 KB
ID:	321595   Click image for larger version

Name:	IMG_20181026_170953.jpg
Views:	32
Size:	210.7 KB
ID:	321596   Click image for larger version

Name:	IMG_20181026_171042.jpg
Views:	29
Size:	209.6 KB
ID:	321597  
Reply With Quote
  #15  
Old 10-27-2018, 02:51:50 PM
cjjmw cjjmw is offline
Registered
 
Join Date: Oct 2018
Location: Westville, New Jersey
Posts: 46
Thanks: 39
Thanked 2 Times in 2 Posts
Default Re: Would you trust this?

Once it's dry I'll try running it again and flashing it.
If it goes as planned, it'll get new caps and I'll take care of the connections.

Quote:
Originally Posted by Railroads View Post
After giving the machine a good cleaning and let dry out for a week then get a spray can of glyptal https://www.electro-wind.com/glyptal...quart-can.html

Robert
Hi Robert,

How clean do I have to get things to use the varnish?
Reply With Quote
  #16  
Old 10-28-2018, 08:28:25 PM
Railroads Railroads is offline
Registered-III
 
Join Date: Sep 2013
Location: North Carolina, USA
Posts: 1,439
Thanks: 963
Thanked 1,112 Times in 461 Posts
Default Re: Would you trust this?

Your at the point of being able to use the varnish if everything has thoroughly dried out. Trapped moisture will lead to failure of the windings.

Rusty lamination stacks don't hurt anything. If anything the rust will insulate the stacks which will stop eddy currents from flowing in the iron laminations. At least that is what some old time transformer books say about the subject.

Make sure to replace any badly corroded connections with good quality crimp connectors. I like to use a ratchet style crimper tool like the pros use to make sure I get a firm high quality connection when replacing crimps.

Good luck.

Robert
Reply With Quote
The Following User Says Thank You to Railroads For This Post:
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
Warne Trust Auction Bubbles Antique Steel Wheel Tractors - Old Iron Lugs and Cleats 10 04-07-2017 06:43:34 PM


Use "Ctrl" mouse wheel to change screen size.
All times are GMT -4. The time now is 07:07:43 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 - 2016 by Harry Matthews P.O. Box 5612 - Sarasota, FL 34277