Removing a BSA swingarm

[jimson]

I have a BSA  Star Fire frame and I need to remove the swingarm. It acts like it has a rubber sleeve in it . Whats the go ? Jimson

[jimg1au]

check this web page out for parts lists

http://draganfly.co.uk/

[matcho mick]

I have a BSA  Star Fire frame and I need to remove the swingarm. It acts like it has a rubber sleeve in it . Whats the go ? Jimson

OXY ,

[flower pot racing]

if the spindle wont come out, cut it out to release the swining arm from the frame then burn the visco-elastis bushes out.

No amount of effort will shift them once they have welded themselves in there.

I have never had to do this, but I know people that have tried.  Burning the rubber out will allow you to beat the left overs out, so that you can start again (or convert to needle rollers or plain bush set up etc) 

Not pretty and will no doubt stink.

Sadly there is no easy way, so get the oxy kit out......

[Tossa]

Had to do the same with my Rickman zundapp frame

[jimson]

Thanks can,t wait sounds like fun  :'(  jimson

[mainline]

Thanks can,t wait sounds like fun  :'(  jimson

let us know how you go, I'm in the same boat

[OverTheHill]

not sure if this helps but in desperation in my youth i cut the frame off one side [must have been the bolt head side] to get the arm out then [cant remember] B33 bsa back in the "60's. Nowdays i'd be laying it on it's side with a solid steel tube [with foot] over the bolt head & resting on the concrete floor then make a steel piece [with handle] to rest on the threaded end then get someone to smack it with a steel sledge hammer. Sounds rude i know but getting desperate. Steel piece at least avoids direct contact with s/arm bolt but will still stuff it in the end if it won't give in. Good luck.

[GMC]

Please be wary of putting too much force on the bolt to push it out.
It might feel like its moving but it might be crushing the other side



If the frame design allows put a bottle jack between the rails to spread the frame just enough to get a thin cutting disc through the bolt to be able to remove the swingarm as per Flower pots suggestion.

[jimson]

I haven,t got a oxy and I don,t think lighting my own fart will work  so I was thinking of putting a threaded rod through the centre of the swing arm with 2 nuts and a washer between them and make a jig of soughts so I can put a nut on the other end of the threaded rod and slowly do the nut up pulling the swingarm out as I go    jimson

[flower pot racing]

Please be wary of putting too much force on the bolt to push it out.
It might feel like its moving but it might be crushing the other side



If the frame design allows put a bottle jack between the rails to spread the frame just enough to get a thin cutting disc through the bolt to be able to remove the swingarm as per Flower pots suggestion.

Good quality welds on that frame!  I have seen the results of people try this in a hydraulic press and just keep applying pressure until the things start to move.  Usually breaks the frame!

[OverTheHill]

Sorry, i should have realied 'Starfire' is the later 'lightweight' type frame [bit after my bsa days] so here's another option [if not too late] At work we had numerous Yamy dt175's[& other similar] where the s/arm bolt would get seized in where it passes through the back of the motor, [as a lot of modern bikes do], couldn't get in there to cut ot off [not easily anyway] so lay bike on side & drilled in with larger & larger drills till it was gone prety much. Were usually seized in the steel sleeves running in the s/arm bushes as well--which has me thinking it must've been a hell of a long way to drill right through past the sleeves--maybe we managed to get motor out complete with arm after just clearing frame but don't think so. Anyway, food for thought. Cheers, ps looking at your pick with frame lugs bending, the old tube over & on the concrete floor trick then a good smack the other end [as described by me earlier] might still be the 'go'.