Solenoid getting old.

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After a year of heavy use on the MK 111 , the solenoid is starting to audibly click before engagement/connect . Especially when cold. Can I open it up and file down the big contact points or should I just buy an aftermarket solenoid switch ? If so , what have riders purchased ? Easy install in lieu of and cheaper would be good . Thanks.
 
Can I open it up and file down the big contact points or should I just buy an aftermarket solenoid switch ?
I doubt very much that you would be able to open it and service the contacts. They are typically a sealed unit.

Walridge lists them for $42 CAD. Part number 06-5508. Direct fit, so easy to install.
 
After a year of heavy use on the MK 111 , the solenoid is starting to audibly click before engagement/connect . Especially when cold. Can I open it up and file down the big contact points or should I just buy an aftermarket solenoid switch ? If so , what have riders purchased ? Easy install in lieu of and cheaper would be good . Thanks.
That is a common trick in the automotive world. When I was young and poor, we did something similar. The contact plate is a round copper disc. It had a hole in the center with a shaft and spring to align it. We would drill out the rivets [your starter contacter is held together with rivets] Remove the circlip on the shaft, remove the copper disc and flip it over. No filing needed. File down the contact surface on the copper stud that the cable attaches to. Reassemble, & bolt/rivet it back together. You can use screws & nuts, blind [aka Pop] rivets or solid rivets. If you would like to use solid rivets [for a more original look] I can supply some for free. I've got hundreds left over from my Vans RV-8A project. You have little to lose by taking it apart. Consider it an educational experience. ;)

Charlie K
 
Thanks , yes I will do that this season end (soon ). Today I bought a 019-6253-0 S63P BWD P-series Solenoid switch . It's cheap and built for cars. It 's large and I'll try to fit it tomorrow. I've kept the receipt and Parts Source says return it if a no fit. But I'll try the flipover attempt as suggested with the genuine unit as mentioned soon too. Thanks.
 
I found a smaller solenoid at the local lawn mower store years ago for about $17. I have an original Mk3 solenoid that came off a bike with a tad over 4,000 miles; PM me if you have interest.

Best.
 
Thanks , yes I will do that this season end (soon ). Today I bought a 019-6253-0 S63P BWD P-series Solenoid switch . It's cheap and built for cars. It 's large and I'll try to fit it tomorrow. I've kept the receipt and Parts Source says return it if a no fit. But I'll try the flipover attempt as suggested with the genuine unit as mentioned soon too. Thanks.
Take that hideous thing back!!! I was going to suggest the item linked below earlier. It's used on Ford Crown Victorias and Mercury Grand Marquis. Those are negative ground vehicles, but that might not matter. This looks more like the stock item. Besides, this design superseded that ugly 1960s turd.

Ford Starter Contactor

Charlie K

PS If you do need a positive ground item, check to see what English Fords use. Odds are, the original Norton unit is probably used on some English car.
 
I doubt very much that you would be able to open it and service the contacts. They are typically a sealed unit.

Walridge lists them for $42 CAD. Part number 06-5508. Direct fit, so easy to install.
I'll talk to Mike. $42 sounds better than the e-bay prices or U.K. prices once you add in shipping , taxes .
 
The classic Mini one will work, its not grounded through the body so fits +ve earth. EB's Durite one looks very similar.
 
This is what I replaced OE with:
I did some Google searching. I learned that the Norton P/N 06-5508 Starter Solenoid Switch is Lucas P/N 76766, mentioned above. Lucas has since superseded that P/N. The Durite part is an aftermarket version of the Lucas replacement. The Lucas P/N for this replacement is P/N SRB325. I also found out that the Mk III original starter solenoid switch was used on Triumph TR-250s, TR-5s and early TR-6s. With that info, at least you can walk into an auto parts vendor, give them a car model and get a replacement locally.

Charlie K
 
I did some Google searching. I learned that the Norton P/N 06-5508 Starter Solenoid Switch is Lucas P/N 76766, mentioned above. Lucas has since superseded that P/N. The Durite part is an aftermarket version of the Lucas replacement. The Lucas P/N for this replacement is P/N SRB325. I also found out that the Mk III original starter solenoid switch was used on Triumph TR-250s, TR-5s and early TR-6s. With that info, at least you can walk into an auto parts vendor, give them a car model and get a replacement locally.

Charlie K

Or Amazon:
Amazon product ASIN B081NC2J1Z
 
The classic Mini one will work, its not grounded through the body so fits +ve earth. EB's Durite one looks very similar.
Good memory. It was used in both the Austin Mini and the Mini Cooper. More cars it was used in: Listed as fitting Triumph TR 250, TR5,TR6 (early),TR6 PI (69-75), Spitfire Mk IIII (69-70),GT6 MK II (69-70), Midget MK III 1300 (69-74), Sprite MK IV (69),TVR 3000M (72-80),TVR 3000S & Turbo (79-80)Lotus Elan +2,2S (69-70), Lotus Elan S4 (69-70), Austin Mini (75-76), Jag XJ6 2.8 (69-73) Mini Coopers (69-70).

Charlie K
 
Ordered in Genuine from Walridge too. (1). Tore apart the problem one to find very burnt contacts. So I'm off the road until replacement arrives. Great fall colours can not be seen. sigh.
 
That is a common trick in the automotive world. When I was young and poor, we did something similar. The contact plate is a round copper disc. It had a hole in the center with a shaft and spring to align it. We would drill out the rivets [your starter contacter is held together with rivets] Remove the circlip on the shaft, remove the copper disc and flip it over. No filing needed. File down the contact surface on the copper stud that the cable attaches to. Reassemble, & bolt/rivet it back together. You can use screws & nuts, blind [aka Pop] rivets or solid rivets. If you would like to use solid rivets [for a more original look] I can supply some for free. I've got hundreds left over from my Vans RV-8A project. You have little to lose by taking it apart. Consider it an educational experience. ;)

Charlie K
Pop rivets? Some of the more moden ones don't have any rivets to drill out?
 
The original Mk3 solenoid was a Prestolite (SAZ 4201N).
Been back on the road for a while now after digging through all my spares. Ordered in 2 of the Amazon ones which arrived fast. Walridge has a later genuine unit coming in for me too. No rivets involved , small bolts n' nuts.
 
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