Author Topic: Swinging Arm Removal  (Read 825 times)

Offline Grumpy

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Swinging Arm Removal
« on: 03.03. 2013 17:37 »
I've been reading previous posts on how best to remove the bushes and spindle from the swinging arm on my A7 but there was no mention of using a press. I have access to a hydraulic press and wondered if this might be an easier way to do it or will I be making more work for myself and risking damage to the frame and swinging arm? Any practicle tips would be appreciated.

Cheers
Colin
Rebuilding a A7 Shooting Star money pit

Online bsa-bill

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Re: Swinging Arm Removal
« Reply #1 on: 03.03. 2013 18:14 »
If you have a S/A that's same internal diameter all the way through (most I think) then a press would be good, some S/A s (one of mine) have a step in the middle so  if you try a press and get nowhere you may have this type
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

Offline jfligg

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Re: Swinging Arm Removal
« Reply #2 on: 03.03. 2013 22:15 »
Hello Guys
  Its funny that this has come up.  I removed the silent block bushings from my 1957 B34 yesterday.  First I drilled out all the rubber and removed the inner spacer.  Then I used a dremmel tool bit to cut the spacers on 2 sides the chisseled out the remaining pieces.  It was alot of work and fairly messey.  A press would not have been any use as my swingarm has the stepped center.  Good Luck  Jeff 

Online bsa-bill

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Re: Swinging Arm Removal
« Reply #3 on: 03.03. 2013 22:31 »
Hi jfligg - my method too, yes pretty dirty but works
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

Offline KiwiGF

  • Last had an A10 in 1976, in 2011 it was time for my 2nd one. It was the project from HELL (but I learned a lot....)
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Re: Swinging Arm Removal
« Reply #4 on: 03.03. 2013 23:51 »
In case you were considering it don't try to press the inner tube out whilst the s/a is still in the frame, I tried this and belled out the frame plates  *sad2*.

The tube is usually rusted to the bushes and is COMPLETELY immovable.

So its best to cut the inner tube and use the methods in the posts above or elsewhere (I think i posted a while back on doing this job, in some details with pics).

I do not have a press, once the old blocs were out I pressed the new one's in using 16mm threaded bar.
New Zealand

1956 A10 Golden Flash (1st finished project)

1949 B31 rigid “400cc hot rod” (2nd finished project, + favourite bike)

1949 C11 rigid, but why!!! (cos it was cheap)

1937 B21, project missing parts, mission impossible?

GL1800 Goldwing, well, the wife likes it

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Offline Grumpy

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Re: Swinging Arm Removal
« Reply #5 on: 06.03. 2013 00:48 »
Thanks for all your advice, by hand it is then, oh joy  *sad2*

Cheers
Colin
Rebuilding a A7 Shooting Star money pit