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Rating: 3
Need advice on removing an A65 swingarm #730873
04/04/18 7:35 pm
04/04/18 7:35 pm
Joined: Jun 2011
Posts: 265
Houston, TX
H
HarveyH Offline OP
BritBike Forum member
HarveyH  Offline OP
BritBike Forum member
H

Joined: Jun 2011
Posts: 265
Houston, TX
I'm stripping down my 1970 Lightning so I can sandblast and paint the frame. However, the swingarm refuses to budge. Can someone explain how to remove it?

Many thanks,

Harvey


1970 A65L (Yep, it's one of the "Y" bikes)
1942 HD45
1942 Boeing N2S-3
1930 Ford A
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Re: Need advice on removing an A65 swingarm [Re: HarveyH] #730881
04/04/18 9:09 pm
04/04/18 9:09 pm
Joined: Aug 2001
Posts: 4,230
argyll. scotland, uk
gavin eisler Offline
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gavin eisler  Offline
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Joined: Aug 2001
Posts: 4,230
argyll. scotland, uk
With everything stripped, quoting from the 70 book,
"Turn back the tab washer on the SA pivot bolt head, and unscrew the bolt , normal RH thread,
Pull out the SA complete with bushes and bobbins. There is no need to disturb the lock plate on the drive side unless the thread is suspect."

If the bolt is stuck, it may be seized to the bobbins, my 71 has a similar set up, it had never been lubed and was seized very tight to the bobbins, heat and pounding moved it eventually, buy a new bolt , bobbins and bushes before going radge with a hammer .
If its not seized it should be plain sailing.




71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod
Re: Need advice on removing an A65 swingarm [Re: HarveyH] #730913
04/05/18 3:19 am
04/05/18 3:19 am
Joined: Jun 2011
Posts: 265
Houston, TX
H
HarveyH Offline OP
BritBike Forum member
HarveyH  Offline OP
BritBike Forum member
H

Joined: Jun 2011
Posts: 265
Houston, TX
IT WORKED!!!

I had to add a little heat but it took VERY little and the swingarm bolt slid right on out.

Thanks for your help!

Harvey


1970 A65L (Yep, it's one of the "Y" bikes)
1942 HD45
1942 Boeing N2S-3
1930 Ford A
Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753713
10/23/18 3:15 pm
10/23/18 3:15 pm
Joined: Jun 2011
Posts: 265
Houston, TX
H
HarveyH Offline OP
BritBike Forum member
HarveyH  Offline OP
BritBike Forum member
H

Joined: Jun 2011
Posts: 265
Houston, TX
Guys,

I moved shortly after Gavin successfully taught me how to unseize my swingarm and I'm just now getting back to my A65L project. It was mostly stock with original parts when I got it so I chose to restore it rather than chop it. My first goals are to strip down the frame and wheels so I can build it up from the basic chassis. I now have a stripped-down chassis ready (I think?) for painting.

Any suggestions on how to proceed?


Thanks!

Harvey


1970 A65L (Yep, it's one of the "Y" bikes)
1942 HD45
1942 Boeing N2S-3
1930 Ford A
Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753715
10/23/18 3:24 pm
10/23/18 3:24 pm
Joined: Aug 2001
Posts: 4,230
argyll. scotland, uk
gavin eisler Offline
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gavin eisler  Offline
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Joined: Aug 2001
Posts: 4,230
argyll. scotland, uk
Dry build completely before thinking about painting, tweaking stuff to fit newly painted parts never works out well.


71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod
Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753725
10/23/18 4:43 pm
10/23/18 4:43 pm
Joined: Jun 2017
Posts: 43
CALIFORNIA
S
slow learner Offline
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slow learner  Offline
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S

Joined: Jun 2017
Posts: 43
CALIFORNIA
Do not powder coat a swing arm with "silent bloc" bushes installed (a '70 swing arm would have them I believe). The bushes have rubber incorporated in their construction which is damaged by heat or chemicals.


Laurence Luce
Re: Need advice on removing an A65 swingarm [Re: slow learner] #753731
10/23/18 5:28 pm
10/23/18 5:28 pm
Joined: Jun 2002
Posts: 937
Jaffrey, NH, USA
Peter Quick Offline

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Peter Quick  Offline

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Posts: 937
Jaffrey, NH, USA
Originally Posted by slow learner
Do not powder coat a swing arm with "silent bloc" bushes installed (a '70 swing arm would have them I believe). The bushes have rubber incorporated in their construction which is damaged by heat or chemicals.


I hear this often about not powder coating swingarms with the rubber bushings in them. I usually bite my tongue and pass on commenting. I wonder how many folks have tried and had bad results with bushings that were in good condition before powder coating?

I've had a few swing arms powder coated with the silentbloc bushing intact and it did't hurt them a bit. Put a torch on them and see how much heat it takes to start melting them. Way more than than a few minute trip in a powder coat oven. The swing arm is a big heat sink and further protects the rubber. Worst case is that the thin edge of exposed rubber in the bushing might get singed.

Peter


check out: www.bsaunitsingles.com
2500 BSA part numbers with inventory in stock just for the unit singles!
Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753733
10/23/18 5:38 pm
10/23/18 5:38 pm
Joined: Dec 2004
Posts: 9,662
Scotland
kommando Offline
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kommando  Offline
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Joined: Dec 2004
Posts: 9,662
Scotland
Silent blocs cope with powder coating very well in my experience, dam site easier than trying to get them out and better than damaging the powder coating getting the replacements in afterwards.

Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753743
10/23/18 7:23 pm
10/23/18 7:23 pm
Joined: Jun 2011
Posts: 265
Houston, TX
H
HarveyH Offline OP
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HarveyH  Offline OP
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H

Joined: Jun 2011
Posts: 265
Houston, TX
Thanks for your inputs. What are "silent bloc bushings"?


I really need to locate my parts book or get another one. I have no business going any farther without one!


Harvey


1970 A65L (Yep, it's one of the "Y" bikes)
1942 HD45
1942 Boeing N2S-3
1930 Ford A
Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753745
10/23/18 7:38 pm
10/23/18 7:38 pm
Joined: Dec 2004
Posts: 9,662
Scotland
kommando Offline
BritBike Forum member
kommando  Offline
BritBike Forum member

Joined: Dec 2004
Posts: 9,662
Scotland
2 steel tubes, one inside the other with a gap, with rubber in between the 2 tubes filling the gap and bonded to both tubes.

Re: Need advice on removing an A65 swingarm [Re: slow learner] #753761
10/23/18 9:44 pm
10/23/18 9:44 pm
Joined: May 2013
Posts: 5,125
Rotherham - S. Yorkshire
Allan Gill Offline

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Allan Gill  Offline

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Joined: May 2013
Posts: 5,125
Rotherham - S. Yorkshire
Originally Posted by slow learner
Do not powder coat a swing arm with "silent bloc" bushes installed (a '70 swing arm would have them I believe). The bushes have rubber incorporated in their construction which is damaged by heat or chemicals.



Nope, from 69 onwards they were actual (bronze?) bushings. Silentblocks ended in 68 with the old frames.


beerchug
Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753771
10/23/18 10:47 pm
10/23/18 10:47 pm
Joined: Feb 2018
Posts: 97
Oklahoma
T
Tracey Spear Online content
BritBike Forum member
Tracey Spear  Online Content
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T

Joined: Feb 2018
Posts: 97
Oklahoma
Hey Harvey

I'm in about the same place with a 69 Thunderbolt. I've got everything apart, cleaning and polishing parts. Parts book and manual are a must. I've also gotten good tips from Browns "Building Budget Brits" he offers advice on working on old bikes that the factory manual doesn't provide. And the folks here at Britbike have been amazing. As you found with your swingarm, the knowledge base here is indispensable.

I've pretty much decided to sandblast and paint with VHT Rollbar paint. I've tried it on a few of the black bits and so far pleased with the results. What does the forum think of this option?

Fun ain't it?

Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753822
10/24/18 11:22 am
10/24/18 11:22 am
Joined: May 2013
Posts: 5,125
Rotherham - S. Yorkshire
Allan Gill Offline

BritBike Forum member
Allan Gill  Offline

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Joined: May 2013
Posts: 5,125
Rotherham - S. Yorkshire
If your happy with the paint, use it.

I’ve sprayed frames with chassis paint, por45 is excellent and tough although a bit watery for an aerosol. East woods satin chassis black then sprayed with their 2k clear coat lacquer (in a tin) gives as close to a factory finish in a tin that I’ve found.

I’ve had professional stove enamel done (on my A65) happy with the finish and 12 years on still polished up nice.... when the time comes.. and had powder coating and whilst it still looks good, I won’t have it again.


beerchug
Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753835
10/24/18 1:31 pm
10/24/18 1:31 pm
Joined: Feb 2008
Posts: 4,615
New Jersey USA
Tridentman Offline

BritBike Forum member
Tridentman  Offline

BritBike Forum member

Joined: Feb 2008
Posts: 4,615
New Jersey USA
POR-15 is excellent paint and it brushes on well--curing to an excellent brush free finish.
Brushing means that you can stipple the paint into the little nooks and crannies that might otherwise be missed using alternative methods of application.
HTH

Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753890
10/24/18 11:32 pm
10/24/18 11:32 pm
Joined: Jun 2011
Posts: 265
Houston, TX
H
HarveyH Offline OP
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HarveyH  Offline OP
BritBike Forum member
H

Joined: Jun 2011
Posts: 265
Houston, TX
Okay, what is POR15?


And I found my parts and repair manuals. (Although they don't seem to go into much detail for fixing something!

Harvey



1970 A65L (Yep, it's one of the "Y" bikes)
1942 HD45
1942 Boeing N2S-3
1930 Ford A
Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753898
10/24/18 11:53 pm
10/24/18 11:53 pm
Joined: Jan 2006
Posts: 3,349
Medford, Oregon
Gary E Offline
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Gary E  Offline
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Joined: Jan 2006
Posts: 3,349
Medford, Oregon
All of my frames have been blasted clean, then powder coated. Same with most of the black attachment parts. The process has worked excellent for me. Trouble free, long life, and looks great.


1967 BSA Wasp
1967 BSA Hornet (West Coast Model)
1967 BSA Hornet (East Coast Model)
1968 BSA Firebird Scrambler
1968 BSA Spitfire Mark IV
Re: Need advice on removing an A65 swingarm [Re: HarveyH] #753905
10/25/18 12:13 am
10/25/18 12:13 am
Joined: Feb 2008
Posts: 4,615
New Jersey USA
Tridentman Offline

BritBike Forum member
Tridentman  Offline

BritBike Forum member

Joined: Feb 2008
Posts: 4,615
New Jersey USA


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