69 - 70 use the Triumph type tool on the fork seal holders. BSAS prior to that used their own tool. Fits over the tube to tighten/loosen the seal holder. Sometimes a strap wrench will substitute, lots of times it won't.
To install, it works best with the correct puller to pull the fork assembly into the tree and compress the spring. They show up on eBay. Or you can use a correct size broom handle threaded into the top of the tube and muscle it into place. Crude but gets the job done.
For 68 and back BSA bushings, do a web search for Paul Goff in England. Sells the best fitting bushes I have seen yet. Also sells dual rate springs and Dow damper rods for the pre damper rod front ends. All nice stuff. 69 - 70 bushes are not hard to find at all. Like previously stated, if the tubes are rough, hard chrome may save them. I even have new tubes hard chromed. Find a place that does hydraulic cylinder rods.
30W on the older front ends? Not sure about that as a blanket statement. I run 20W fork oil in my stuff and am very happy with the fork action. But then my forks are not exactly stock either There are things you can do to make them work better!
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Re: BSA fork bushings repair.#7498 01/26/065:01 am01/26/065:01 am
i have the tool for installing the legs on into the trees. the haynes i beleive says use a strap wrench in disasembly. i will have to ho back and see if i can figure what they are talking about. i imagine one would have to put the slider in a vice.
time for a reread of the manual, i still got a question on bushing fitment i am going to see if i can answer myself.
If all I want to do is replace the oil seals on my front fork, why must I pull the tubes out of the triple trees?
Can I not just:
1) Take off the front wheel. 2) Hold the forks steady with a dummy axle while I loosen the seal holders with a strap wrench. 3) Take the sliders off of the tubes (what tool would I use to hold the bolt from turning on the inside of the slider?) 4) Screw the seal holders off and replace the seals. 5) Replace in opposite order of disassembly.
What am I missing? Been 30 years since I done it so there's probably something.
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Hacksaw, You can make a nice wrench for the fork seals really easy. Use two small blocks of HARDWOOD like oak, maybe 1-1/4 x 1-1/4 x 2" or so. Pilot-drill and screw in a 3/4" x #4 button head wood screw in the centre of a long side in each block, don't sink the head. Use these in your vice to hold the seal holders at the little holes, and cushion your chrome. Works slick.
The puller tool is even easier. But ignore the 36" rod length, 12" is better. This fork tool works so well, removing and installing the forks is 10 times faster than the recommended tool.