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front fork internal shield

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Crackleport
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front fork internal shield

Post by Crackleport » Sat Dec 22, 2018 4:26 pm

Hi. Wondering if any of you guys knows what sort of material is used to make the thin shield that fits between the spring and the front fork leg on the later type forks. Looks to be a thick paper but surely not?. Is it to stop noise or reduce wear? Thanks. Ian

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G-Man
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Re: front fork internal shield

Post by G-Man » Sun Dec 23, 2018 3:33 am

Hi Ian

It's made out of a sort of plasticised paper, I believe. It's there to stop th espring rubbing on the leg, maybe to stop wear and noise.

I think Terry Silvia on this site made some reproductions out of plastic card. There were pictures.


G

Crackleport wrote:Hi. Wondering if any of you guys knows what sort of material is used to make the thin shield that fits between the spring and the front fork leg on the later type forks. Looks to be a thick paper but surely not?. Is it to stop noise or reduce wear? Thanks. Ian
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

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Seadog
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Re: front fork internal shield

Post by Seadog » Sun Dec 23, 2018 8:36 am

G-Man wrote:Hi Ian

It's made out of a sort of plasticised paper, I believe. It's there to stop th espring rubbing on the leg, maybe to stop wear and noise.

I think Terry Silvia on this site made some reproductions out of plastic card. There were pictures.


G

Crackleport wrote:Hi. Wondering if any of you guys knows what sort of material is used to make the thin shield that fits between the spring and the front fork leg on the later type forks. Looks to be a thick paper but surely not?. Is it to stop noise or reduce wear? Thanks. Ian
I tried many materials - shim stock, gasket material and other plastics. I found a plastic file folder to be best. I used the crease in the bottom of the folder for the bent over tabs. I have the measurements if you need them.

ImageIMG_2544 by Sea Dog, on Flickr

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G-Man
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Re: front fork internal shield

Post by G-Man » Sun Dec 23, 2018 8:42 am

Thanks Seadog for jumping in with info and pictures.

G
Seadog wrote:
G-Man wrote:Hi Ian

It's made out of a sort of plasticised paper, I believe. It's there to stop th espring rubbing on the leg, maybe to stop wear and noise.

I think Terry Silvia on this site made some reproductions out of plastic card. There were pictures.


G

Crackleport wrote:Hi. Wondering if any of you guys knows what sort of material is used to make the thin shield that fits between the spring and the front fork leg on the later type forks. Looks to be a thick paper but surely not?. Is it to stop noise or reduce wear? Thanks. Ian
I tried many materials - shim stock, gasket material and other plastics. I found a plastic file folder to be best. I used the crease in the bottom of the folder for the bent over tabs. I have the measurements if you need them.

ImageIMG_2544 by Sea Dog, on Flickr
'60 C77 '60 C72 '62 C72 Dream '63 CL72
'61 CB72 '64 CB77 '65 CB160
'66 Matchless 350 '67 CL77
'67 S90 '77 CB400F

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Seadog
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Posts: 1272
Joined: Thu Dec 25, 2014 9:54 am
Location: Cape Cod, MA

Re: front fork internal shield

Post by Seadog » Sun Dec 23, 2018 9:35 am

G-Man wrote:Thanks Seadog for jumping in with info and pictures.

G
Happy to help whenever I can. Here are the dimensions:

ImageCB77Springguides by Sea Dog, on Flickr

bill440cars
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Post by bill440cars » Sun Dec 23, 2018 2:27 pm

Pretty cool info here, Thanks Seadog & G-Man, for posting this up. Very nice to know info.
Working Toward Being Able To Work On MY Motorcycle Projects (Trying To Get Past "Other" Projects & I Think I Am Making Progress?

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