Go Back  RCU Forums > RC Airplanes > Composites Fabrication And Repair
Reload this Page >

Sullivan Starter Switch Re-build

Notices
Composites Fabrication And Repair Carbon Fiber, Kevlar, Fiberglass and all the newest high tech composites

Sullivan Starter Switch Re-build

Old 08-05-2019, 03:55 PM
  #1  
Lee Taylor
Thread Starter
 
Lee Taylor's Avatar
 
Join Date: Feb 2011
Location: Charleston , SC
Posts: 294
Likes: 0
Received 3 Likes on 3 Posts
Default Sullivan Starter Switch Re-build

I am right in the middle of re-building a couple of 40 yr old Sullivan Starter Switches. These two motors have very little wear on them but the years have taken a toll on the switches. I am in the process of finding some rubber I can use to make the switches work properly. At the moment I am looking at hollow weather-stripping. I am sure Sullivan sold millions of these starters so I thought I would post a little information that may prove helpful to others that own some very old Sullivan Starters with switches that have degraded over the decades. (yes I am an old school nitro guy and no I do not care if nitro is dead or there is little interest. I go my own direction)

Well here they are. Two of the Sullivan's that were SO popular back-in-the day


These pads are not good and longer. They have degraded over time. No more compression and no more return


Side view of squish-pads. Compression pads would be a more sophisticated call-out for a bill-of-materials.


The over-all dimension, outer face to outer face, is very close to .250". The conductor thickness is approximately .020"


The sleeve appears to be a hollow core rectangular weather seal. Over-all dimensions 0.5" x 1.0"

Last edited by Lee Taylor; 08-06-2019 at 02:18 PM.
Old 08-05-2019, 09:05 PM
  #2  
GREG DOE
 
Join Date: Jul 2005
Location: , TN
Posts: 701
Likes: 0
Received 0 Likes on 0 Posts
Default

You can buy new ones from Sullivan.
Old 08-06-2019, 02:38 AM
  #3  
Lee Taylor
Thread Starter
 
Lee Taylor's Avatar
 
Join Date: Feb 2011
Location: Charleston , SC
Posts: 294
Likes: 0
Received 3 Likes on 3 Posts
Default

Hello Greg... Hope you are well today. Not sure I want to pursue a new one at this time. Yes a new one would be a fix and thank you for that suggestion. Due to my background I tend to look deeper. Aging of the "compressible pads" is the cause of the problem. The material selected for the initial design has aged and hardened. There are materials available that would have been a better choice. I do not think the initial design criteria included environment, aging, and cycling. Trust me when I say, sometimes it is necessary to put products on the market when you have a workable model. Lengthy testing sometimes has to wait

IF the demand for this product were to return, the Sullivan company should make a design improvement

Last edited by Lee Taylor; 08-06-2019 at 02:28 PM.
Old 08-06-2019, 07:43 AM
  #4  
BelAirBob
 
Join Date: Mar 2004
Location: Bel Air, MD
Posts: 489
Likes: 0
Received 1 Like on 1 Post
Default

I forwarded this to the folks at Sullivan. They will probably contact you but they say the parts were changed about 15 years ago

Regards
Old 08-06-2019, 08:03 AM
  #5  
Lee Taylor
Thread Starter
 
Lee Taylor's Avatar
 
Join Date: Feb 2011
Location: Charleston , SC
Posts: 294
Likes: 0
Received 3 Likes on 3 Posts
Default

Hello Bob. Hope things are going well for you in MD. Thank you for forwarding this to the folks at Sullivan. You can tell them for me that it is perfectly fine if the contact me. It is good to know that Sullivan changed the parts 15 years ago. I had no idea they were still in business.

My Sullivan starters have quite a bit of age on them but have little mileage on them. The brushes look very good. I am very happy with them. I think overall it is a solid design. Repairing this switch is a simple and inexpensive matter to me. I will be happy to have two good solid engine starters when I finish

Last edited by Lee Taylor; 08-06-2019 at 02:36 PM.
Old 08-12-2019, 12:25 PM
  #6  
Lee Taylor
Thread Starter
 
Lee Taylor's Avatar
 
Join Date: Feb 2011
Location: Charleston , SC
Posts: 294
Likes: 0
Received 3 Likes on 3 Posts
Default Sullivan Hi-Tork Switch re-build

Here is the product I will be using to replace the "compression pads". My concern is that it will compress too easily. I am also concerned that it will not have enough "return strength" to break the electrical circuit.

Here is the new compression pad material I purchased off Amazon



Here is a newly designed switch I found in England. They have not responded yet


I reached out to Sullivan Products but they have not responded yet
Old 08-19-2019, 08:08 AM
  #7  
[email protected]
 
Join Date: Feb 2016
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default

Lee,
I received this from BelAirBob a few weeks ago and sent him a response for you. I just got back from Germany and wanted to thank you for keeping our older starters running. As I told Bob we have a newer design that does not use the foam anymore. It appears to be the picture above. If you need any parts feel free to contact me and thanks again for keeping them alive.
Fred
Old 08-19-2019, 08:08 AM
  #8  
[email protected]
 
Join Date: Feb 2016
Posts: 2
Likes: 0
Received 0 Likes on 0 Posts
Default

Lee,
I received this from BelAirBob a few weeks ago and sent him a response for you. I just got back from Germany and wanted to thank you for keeping our older starters running. As I told Bob we have a newer design that does not use the foam anymore. It appears to be the picture above. If you need any parts feel free to contact me and thanks again for keeping them alive.
Fred
Old 08-19-2019, 08:41 AM
  #9  
Lee Taylor
Thread Starter
 
Lee Taylor's Avatar
 
Join Date: Feb 2011
Location: Charleston , SC
Posts: 294
Likes: 0
Received 3 Likes on 3 Posts
Default Sullivan Hi-Tork Switch replacement

Originally Posted by [email protected] View Post
If you need any parts feel free to contact me and thanks again for keeping them alive.
Fred
Yes and thank you. The Sullivan design from back in the day was excellent (except for some aging concerns with the compression pads). One of your co-workers has contacted me and I will be placing an order for the "deflected metal" type switch. I like it better than the compressible foam. I am sure some old die-hards like myself will be contacting you. Replacing switches is certainly not a great amount of business for Sullivan but the product is fantastic.

Last edited by Lee Taylor; 08-19-2019 at 02:21 PM.
Old 08-24-2019, 08:00 AM
  #10  
Lee Taylor
Thread Starter
 
Lee Taylor's Avatar
 
Join Date: Feb 2011
Location: Charleston , SC
Posts: 294
Likes: 0
Received 3 Likes on 3 Posts
Default

08-24-19........YEA! Sullivan switch assembly arrived today. From a design perspective it looks GREAT!

https://www.rcgroups.com/forums/show...&postcount=150
Old 09-07-2019, 03:49 PM
  #11  
Lee Taylor
Thread Starter
 
Lee Taylor's Avatar
 
Join Date: Feb 2011
Location: Charleston , SC
Posts: 294
Likes: 0
Received 3 Likes on 3 Posts
Default

.
Very happy to receive some replacement Sullivan Switches. They look
great from a design perspective!
.


Old 09-07-2019, 04:09 PM
  #12  
Lee Taylor
Thread Starter
 
Lee Taylor's Avatar
 
Join Date: Feb 2011
Location: Charleston , SC
Posts: 294
Likes: 0
Received 3 Likes on 3 Posts
Default

.
I wired-in this switch they sent me. The starter works GREAT! From a design perspective it feels solid as a rock. I am VERY happy with this switch!
.







Old 09-07-2019, 04:17 PM
  #13  
Lee Taylor
Thread Starter
 
Lee Taylor's Avatar
 
Join Date: Feb 2011
Location: Charleston , SC
Posts: 294
Likes: 0
Received 3 Likes on 3 Posts
Default

.
A blow-up photo
.

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


Thread Tools
Search this Thread

Contact Us - Archive - Advertising - Cookie Policy - Privacy Statement - Terms of Service - Do Not Sell My Personal Information

Copyright 2018 MH Sub I, LLC dba Internet Brands. All rights reserved. Use of this site indicates your consent to the Terms of Use.