HarleyTechTalk

Technical Forums => Shovel Head => Topic started by: Harpo on October 02, 2019, 10:25:59 AM

Title: Push Button Solenoid Cap
Post by: Harpo on October 02, 2019, 10:25:59 AM
Howdy all - was wondering if anyone knew of someplace that sells the push button solenoid caps that would be for a shovel solenoid (on the primary).  I've seen 'em  for later model bikes that fit on the starter, but I haven't seen any for a shovel primary mounted solenoid.  Thanks everyone.
Title: Re: Push Button Solenoid Cap
Post by: Tynker on October 02, 2019, 01:53:49 PM
By the shovel solenoid design, they will never be one made.
Title: Re: Push Button Solenoid Cap
Post by: flht1550 on October 02, 2019, 02:14:01 PM
The old timers used the use a short piece of flat spring steel and drill a hole in it to bolt to one terminal and when bending it it would make contact with other terminal to engage starter motor, Same as if you would bench testing a starter mounted to a shop work bench, Once starter is engaged you release off of the spring steel to disengage the two contacts and hopefully it started. There is a company the make a fancy lever engagement but it's pricey.
Title: Re: Push Button Solenoid Cap
Post by: bump on October 03, 2019, 03:07:45 AM
Just about as easy to fix starter the right way. 
Title: Re: Push Button Solenoid Cap
Post by: Breeze on October 03, 2019, 03:29:56 AM
My Shovelhead had a short piece of a hacksaw blade  under the nut on one of the terminals. Several wraps of electrical tape on the end to insulate it, and kept it weighted to prevent flip-flop contact when running. Crude, but worked. :moonbat:
Title: Re: Push Button Solenoid Cap
Post by: JW113 on October 03, 2019, 08:20:11 AM
I had one of these on mine for a while.

https://www.jpcycles.com/product/381-946/lever-action-starter-solenoid-and-lever

-JW
Title: Re: Push Button Solenoid Cap
Post by: 76shuvlinoff on October 03, 2019, 09:06:26 AM
Quote from: bump on October 03, 2019, 03:07:45 AM
Just about as easy to fix starter the right way.

Yes but you gotta admit the stock type push button controls are lacking.  I haven't done it but I can see the hacksaw blade method reducing the number of contacts that might fail.   
Title: Re: Push Button Solenoid Cap
Post by: JW113 on October 03, 2019, 05:45:37 PM
Yeah those little bitty push switches are pretty flimsy, must have been real cheap back in the 70s. Mine was intermittent, so I bought a re-pop. It failed almost right away. Took me a quite while to round up an OEM from HD.

-JW
Title: Re: Push Button Solenoid Cap
Post by: bump on October 04, 2019, 03:01:15 AM
I have been through two of he handlebar button switches, 3or4 of the solenoid  under the battery tray and a couple of the solenoid on the primary. I have had bike 41 years. I find that the buttons go bad when one of the solenoids start to go bad.
Title: Re: Push Button Solenoid Cap
Post by: Ohio HD on October 04, 2019, 03:10:37 AM
In the later year Shovels, HD wired a small ice cube relay between the button and solenoid. Costs about $15 bucks to do that.
Title: Re: Push Button Solenoid Cap
Post by: crock on October 04, 2019, 03:21:14 AM
Quote from: Ohio HD on October 04, 2019, 03:10:37 AM
In the later year Shovels, HD wired a small ice cube relay between the button and solenoid. Costs about $15 bucks to do that.

https://www.amazon.com/Superior-Dixie-Distributing-Terminal-Starter/dp/B071DMRM7T/ref=sr_1_3?keywords=31506-79B&qid=1570184428&sr=8-3
Title: Re: Push Button Solenoid Cap
Post by: Breeze on October 04, 2019, 03:39:41 AM
I found a photo of the hacksaw blade on my old primary/solenoid. It's a must have for a Rat bike. IMO.  :slap:
Title: Re: Push Button Solenoid Cap
Post by: 72fl on October 04, 2019, 04:01:24 AM
Quote from: crock on October 04, 2019, 03:21:14 AM
Quote from: Ohio HD on October 04, 2019, 03:10:37 AM
In the later year Shovels, HD wired a small ice cube relay between the button and solenoid. Costs about $15 bucks to do that.

https://www.amazon.com/Superior-Dixie-Distributing-Terminal-Starter/dp/B071DMRM7T/ref=sr_1_3?keywords=31506-79B&qid=1570184428&sr=8-3

Just so you know NAPA has the same relay :up:
Title: Re: Push Button Solenoid Cap
Post by: 76shuvlinoff on October 04, 2019, 01:34:48 PM
My button fires the Ford relay under the battery tray. I figure that can't be too many amps to run. What does the later relay do? Do you push a button to close a relay to close another relay to pull in a solenoid to fire the starter?  I know this works but it's got even more potential failure points.

Yes aftermarket shovel era buttons suck and for me soldering them in is even worse. I imagine finding nos is a bear.
Title: Re: Push Button Solenoid Cap
Post by: HarleyCharley on October 04, 2019, 04:33:28 PM
Actually the cube relay on the later shovels replaced the Ford type relay. I've replaced the cube relay on my '81 a few times in 30 years.
Title: Re: Push Button Solenoid Cap
Post by: Burnout on October 04, 2019, 05:16:06 PM
Remember when mounting a cube relay mount it terminals down so the water runs out.

Mounted upside down they will fill up with water and fail much sooner.
Title: Re: Push Button Solenoid Cap
Post by: bump on October 05, 2019, 04:15:48 AM
Quote from: 76shuvlinoff on October 04, 2019, 01:34:48 PM
My button fires the Ford relay under the battery tray. I figure that can't be too many amps to run. What does the later relay do? Do you push a button to close a relay to close another relay to pull in a solenoid to fire the starter?  I know this works but it's got even more potential failure points.

Yes aftermarket shovel era buttons suck and for me soldering them in is even worse. I imagine finding nos is a bear.


Button on handlebar closes ford type relay under battery box which then sends power to solenoid mounted on primary to send power to starter and engage bendix drive. Only one relay in system.
Title: Re: Push Button Solenoid Cap
Post by: 76shuvlinoff on October 05, 2019, 05:55:43 AM
Quote from: bump on October 05, 2019, 04:15:48 AM
Quote from: 76shuvlinoff on October 04, 2019, 01:34:48 PM
My button fires the Ford relay under the battery tray. I figure that can't be too many amps to run. What does the later relay do? Do you push a button to close a relay to close another relay to pull in a solenoid to fire the starter?  I know this works but it's got even more potential failure points.

Yes aftermarket shovel era buttons suck and for me soldering them in is even worse. I imagine finding nos is a bear.


Button on handlebar closes ford type relay under battery box which then sends power to solenoid mounted on primary to send power to starter and engage bendix drive. Only one relay in system.

Yes I was (poorly) questioning whether the ice cube type relay was an addition to, or a replace of, the Ford relay. I've never had or worked on one with the ice cube style. 
Title: Re: Push Button Solenoid Cap
Post by: JW113 on October 05, 2019, 10:00:57 AM
I don't know how many amps the solenoid draws, guess I could measure it sometime. As big as it is, seems like it would pull quite a bit. Those Bosch/Hella type relays can be good up to about 30 amps. You can find them in just about any auto parts store in the wire/terminals/lights section. So if you decided to replace the big Ford power relay with one of those, should it fail, easy to find a replacement. Not sure I'm ready for that leap of faith just yet.
:SM:

-JW
Title: Re: Push Button Solenoid Cap
Post by: Burnout on October 05, 2019, 11:19:05 AM
The cube relays work fine for triggering the solenoid, they just don't last as long as a Ford Solenoid.
But at the same time they are not as large and knobby as a ford solenoid.
I think Pico sells a cube relay rated for 40A, not sure if they last any longer.
The cube relays don't fail suddenly, they tend to go intermittent first and give you warning.
Title: Re: Push Button Solenoid Cap
Post by: friday on October 06, 2019, 01:26:25 PM
Is it really necessary to have the rubber boot over the solenoid? 
Title: Re: Push Button Solenoid Cap
Post by: Ohio HD on October 06, 2019, 01:53:27 PM
Well, do you feel lucky? One of those terminals is hot, 12 volt to the battery. Something makes contact with the terminal and the frame, case, etc., you'll have a light show. Or something crosses from one terminal to the other, the starter will begin cranking.
Title: Re: Push Button Solenoid Cap
Post by: 76shuvlinoff on October 11, 2019, 04:31:51 PM
this  ^
Title: Re: Push Button Solenoid Cap
Post by: dusty1 on October 12, 2019, 07:08:05 PM
I always used a quarter to start mine,works great till you accidentally spend it :SM: