ariel sq4 brush plate

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GuyWalton
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ariel sq4 brush plate

Postby GuyWalton » Tue Jan 07, 2020 5:10 pm

Does anyone know where i can purchase a dynamo brush plate for an early mk1 square four . Draganfly are on back order of 12 weeks . This is the part .C35SD brush plate 1949-53 220552 .
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220552.jpg
51 mk1 Areil Square Four
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67 BSA B44
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JohnnyBeckett
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Re: ariel sq4 brush plate

Postby JohnnyBeckett » Tue Jan 07, 2020 5:41 pm

if that is on backorder on drags forget 12 weeks more like it will be 12 months if you are lucky i have been waiting 18 months for parts :?: look on ebay

GuyWalton
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Re: ariel sq4 brush plate

Postby GuyWalton » Tue Jan 07, 2020 6:01 pm

Ive ordered some tufnol sheet , think it is similar to bakelite , cant be that difficult to make . I have tried ebay and the internet with no luck . Seemingly they have the later one from 52 on but it dosent fit the earlier 49 to 51 dynamo . I have all the bits from the old one so we will see how it goes .
51 mk1 Areil Square Four
55 DB 500 BSA Gold Star
55 Matchless G9
67 BSA B44
06 Ducati 999R

JohnnyBeckett
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Re: ariel sq4 brush plate

Postby JohnnyBeckett » Tue Jan 07, 2020 6:25 pm

HI Guy think you will be ok with tufnol i think it better than bakelite to work with i have used it to make parts and it has came out very good

daveleek
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Re: ariel sq4 brush plate

Postby daveleek » Tue Jan 07, 2020 6:37 pm

Hi Guy the 54-58 brush plate seems very similar and they have them in stock ,I cant see any difference between the two

GuyWalton
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Re: ariel sq4 brush plate

Postby GuyWalton » Tue Jan 07, 2020 6:53 pm

daveleek wrote:Hi Guy the 54-58 brush plate seems very similar and they have them in stock ,I cant see any difference between the two


I asked them if it would fit and they said not . this was the reply .
I am sorry but the early and later brush plates are not compatible. The 220552 will be placed onto backorder however the lead time from our supplier is usually around 12 weeks.
There are 2 versions of this dynamo, the early one has a small spring at the commutator end with a 1/2” bore, the later version has a much larger spring, about 1” in diameter. The armature, brush plate and commutator bearing are also different.
51 mk1 Areil Square Four
55 DB 500 BSA Gold Star
55 Matchless G9
67 BSA B44
06 Ducati 999R

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paul.jameson
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Re: ariel sq4 brush plate

Postby paul.jameson » Tue Jan 07, 2020 9:07 pm

Try Tony Cooper.
Paul Jameson
36 4G, 37 VH, 54 KH(A), 75 Healey 1000/4, 52/53 ex ISDT KHA (project).
Former Machine Registrar & Archivist, General Secretary and Single Spares Organiser (over a 25 year period).
Now Archivist once more - but not Machine Registrar.

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BobWard
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Re: ariel sq4 brush plate

Postby BobWard » Thu Jan 09, 2020 7:11 pm

Would this be any good
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282077F9-E1D0-41F5-B624-E17B5C40D442.png
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GuyWalton
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Re: ariel sq4 brush plate

Postby GuyWalton » Thu Jan 09, 2020 8:13 pm

BobWard wrote:Would this be any good

thanks for that Bob
51 mk1 Areil Square Four
55 DB 500 BSA Gold Star
55 Matchless G9
67 BSA B44
06 Ducati 999R

john.whiting
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Re: ariel sq4 brush plate

Postby john.whiting » Fri Jan 10, 2020 6:02 am

ive made brush mounts from micarta board and from some more heat resistant board where the micarta burnt up.....the stuff isnt easy to work ,but can be bandsawed easily enough with a fine tooth blade,and cut with a holesaw....where the metal parts are rivetted ,I just attach them with nuts and bolts....Some of these mounts are very expensive ..one for a GE DC motor was $500 US from the maker.,but quality electrical stuff is generally expensive.


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