Author Topic: Forks  (Read 1242 times)

Offline Howard

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Forks
« on: 05.02. 2011 18:29 »
When stripping down the forks on my A7 I noticed when I undid the Chrome Fork seal Holders there was something like Plumbers Hemp where the Lower Fork Leg Joins the Seal Holders, is it necessary to replace this ?

Offline Goldy

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Re: Forks
« Reply #1 on: 05.02. 2011 18:38 »
No the seal should do it,s job. Check that the stanchions are not worn.
56 A10 Golden Flash - Restore, ride, relive.                                          
56 C12 BSA project ongoing

Offline MG

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Re: Forks
« Reply #2 on: 05.02. 2011 19:00 »
I use Teflon tape, just to keep water out and my mind at peace.
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

Austria

Offline 1660bob

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Re: Forks
« Reply #3 on: 05.02. 2011 19:50 »
 Hi Howard, the hemp is there to seal the threads against oil weeping out of the fork. As the thread is below the oil seal,oil could find its way out there. Modern equivalent is a couple of turns of PTFE tape from your local  plumbers merchant/ B&Q. Bob.

Offline Howard

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Re: Forks
« Reply #4 on: 05.02. 2011 22:21 »
Thanks for that, I didn`t think about using tread seal tape and I have a roll. Now that you mention it ,yes it would be below the seal,so I can see how oil could escape....so thanks for the tip.
Regards..Howard

Online trevinoz

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Re: Forks
« Reply #5 on: 06.02. 2011 20:41 »
Howard,
              Read the service sheet and you will see that the factory even recommended the type of string to use.
  Trev.

Offline olev

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Re: Forks
« Reply #6 on: 07.02. 2011 10:13 »
O Rings ??

Online bsa-bill

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Re: Forks
« Reply #7 on: 07.02. 2011 10:25 »
O rings didn't work for me Olev, maybe poor quality though

Slim seal to go above the circlip that holds the top bush in is my thoughts but haven't found one yet
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online orabanda

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Re: Forks
« Reply #8 on: 07.02. 2011 11:16 »
The Aussie experts know best (again!).
I also prefer teflon (thread) tape. Cheap, easy to apply, and effective; and it is easy to break the seal when removing the seal holder.

Don't forget that there is a right or wrong way to apply PTFE tape; it needs to be wound ont the thread in the same direction as the fork seal holder (or fitting) screws, to avoid it being damaged (torn up) when installing.

Another application I use thread tape for, is to more effectively seal the oil inspection cap, and the primary case cap.

Make the tape narrow by doubling it over on itself, and put two turns on the cap thread.

This seems to make the caps seal, and keep the oil mist inside the tank, and engine.

Richard

Offline MG

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Re: Forks
« Reply #9 on: 07.02. 2011 12:50 »
Quote
The Aussie experts know best (again!).

Hey, I was the first one to mention PTFE tape, and I'm no Aussie.
No kangaroos in Austria!!!  *lol*


Since I open the oil tank and primary cap quite often, I have found O-rings to work best for me on these. All is nice and oil tight and with the very little tightening torque required they won't get damaged, unlike in the forks.

Cheers, Markus
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

Austria

Online trevinoz

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Re: Forks
« Reply #10 on: 07.02. 2011 20:44 »
No kangaroos in Austria!!!

Want some?   They are in plague numbers here!  The roadsides are littered with them in their favourite crossing places as well as around the railway lines.
At least they are feeding the crows and eagles when they are knocked down and making plenty of work for panel beaters and mechanics.
I think it is only fair that Europe takes some kangaroos off our hands in repayment for the rabbits, hares, foxes etc. which have over run Australia!
Trev.

Offline MG

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Re: Forks
« Reply #11 on: 07.02. 2011 20:58 »
hmm, interesting idea Trev, kangaroos and chamois jumping over snow covered mountainsides, I wonder whether they'd get along?  *smile*
1955 A7 Shooting Star
1956 A10 Golden Flash
1961 Matchless G12 CSR

www.histo-tech.at - Restoration, Repairs, Racing

Austria

Online trevinoz

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Re: Forks
« Reply #12 on: 07.02. 2011 21:12 »
MG,
               Kangaroos are typical Aussies, they get along with everyone!
Don't forget, we have snow covered mountains here also [you would probably call them hills] but I don't know whether the 'roos are silly enough to stay there in winter.
Then again they are silly enough to jump into the path of moving vehicles.
  Trev.