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67 a65 seat #655729
06/06/16 1:54 pm
06/06/16 1:54 pm
Joined: Jun 2013
Posts: 245
Clarkston, MI
R
redmosquito1 Offline OP
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redmosquito1  Offline OP
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Joined: Jun 2013
Posts: 245
Clarkston, MI
Hey all, I have a question about the seat for my 67 a65. The seat I got with the bike is messed up, I think. There are 6 holes in the pan, the two up front are unthreaded and look to accept the rubber bungs. Then a few inches back there are threaded holes that don't line up with any holes on the frame. Then a few inches behind that are 2 holes that look to maybe have been torched out by a previous owner that line up with the tabs on the frame.

I'm thinking that maybe BSA used the same seat pan accross it's line up and the middle set of threaded holes are used on a different bike and the holes that were torched out were possibly threaded at some point also. I have looked at other seats on eBay but who knows if they're the right seat or not, so I'm not sure which holes are for what.


So, for a 67 A65 I would put the rubber pieces on the forward most set of holes, the middle threaded holes go unused, and the rear holes are supposed to be threaded to accept the seat bolts?

If so I'll need to weld a nut onto it, in which case does anyone know the length of the spacer that goes there? I'll just weld a coupler nut there if I can find a suitable length one. My seat is kinda messed up anyways so it'll suffice until I can find a better one.

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Re: 67 a65 seat [Re: redmosquito1] #655733
06/06/16 2:45 pm
06/06/16 2:45 pm
Joined: Dec 2002
Posts: 3,251
arkansas
L
leon bee Offline
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leon bee  Offline
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Joined: Dec 2002
Posts: 3,251
arkansas
It's all just as you said, somebody tore out the threads. That spacer is maybe a half inch, no more. Just enough to keep the seat off the fender and to allow room for the chrome rail at back of seat. Seems like I welded something once, I'm sure it melted plenty of foam but you couldn't tell. You could pop rivet some stuff under there.

Re: 67 a65 seat [Re: redmosquito1] #655740
06/06/16 3:28 pm
06/06/16 3:28 pm
Joined: May 2013
Posts: 4,843
Rotherham - S. Yorkshire
Allan Gill Offline

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Allan Gill  Offline

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Joined: May 2013
Posts: 4,843
Rotherham - S. Yorkshire
I took my cover off, put bolts through the holes, made a brace to span across the bolt section to stop further damage to the base and locked it down with a flanged nut on each side. The flange on the nut acts like a spacer and spreads load better. Just so happened to be the right length. I can now put a nut on the stud instead of piddling around trying to line them up.

Earlier frames had the seat mount further forwards than the 67< bikes


beerchug
Re: 67 a65 seat [Re: redmosquito1] #655784
06/06/16 10:51 pm
06/06/16 10:51 pm
Joined: Jun 2013
Posts: 245
Clarkston, MI
R
redmosquito1 Offline OP
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redmosquito1  Offline OP
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Joined: Jun 2013
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Clarkston, MI
Thanks guys, the foam is messed up under there but you don't notice on the top so a little more melted foam is ok. I'll probably weld up a nut to act as the spacer and then I can use a common bolt to attach the seat. One of these days I'll order a cover or a whole seat to use. I did find some measurements online (a thread here actually) that specs the spacer at 17/32 or 7/16 for the repop ones, so 1/2" is right in the middle.

Re: 67 a65 seat [Re: Allan Gill] #655810
06/07/16 8:54 am
06/07/16 8:54 am
Joined: Aug 2012
Posts: 704
West Virginia, United States
Beach Offline

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Beach  Offline

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Posts: 704
West Virginia, United States
Not only a good fix but a problem solving solution...


Bill
1974 Norton Commando
1966 Lightning
1965 Lightning Rocket
1966 Norton Atlas
1967 Norton Atlas
1948 Panhead
Re: 67 a65 seat [Re: redmosquito1] #655879
06/07/16 6:55 pm
06/07/16 6:55 pm
Joined: Jun 2013
Posts: 245
Clarkston, MI
R
redmosquito1 Offline OP
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redmosquito1  Offline OP
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Joined: Jun 2013
Posts: 245
Clarkston, MI
got the seat to go on fully but the rubber bumpers don't touch anything. Is that normal? I assume not. Maybe I have the rubber bumper in the wrong holes? Here's a pic of where I think they go, but now I think they go in the far back holes? It's hard to see them but they're behind the fubared holes towards the outside


Last edited by redmosquito1; 06/07/16 6:56 pm.
Re: 67 a65 seat [Re: redmosquito1] #655885
06/07/16 8:27 pm
06/07/16 8:27 pm
Joined: Dec 2002
Posts: 3,251
arkansas
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leon bee Offline
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leon bee  Offline
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Joined: Dec 2002
Posts: 3,251
arkansas
I've had at least a dozen, maybe more, of those hump seats around here. Not a single one has had those rubber bumpers, so I can't help. Maybe mine all fell apart or just fell out.

Re: 67 a65 seat [Re: redmosquito1] #655903
06/07/16 11:32 pm
06/07/16 11:32 pm
Joined: Jun 2013
Posts: 245
Clarkston, MI
R
redmosquito1 Offline OP
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redmosquito1  Offline OP
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Joined: Jun 2013
Posts: 245
Clarkston, MI
It seems they have to go on the far back holes, that way they hit the seat loop.

Problem is now in order to weld on a nut or a bolt set up such as Allan suggests. So, maybe its time to bite the bullet and order a cover for it.

Re: 67 a65 seat [Re: redmosquito1] #655942
06/08/16 8:05 am
06/08/16 8:05 am
Joined: May 2013
Posts: 4,843
Rotherham - S. Yorkshire
Allan Gill Offline

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Allan Gill  Offline

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Joined: May 2013
Posts: 4,843
Rotherham - S. Yorkshire
I would still form a brace across the seat, that thin seat pan isn't enough to support the weight of rider and pillion. The brace spreads the load over the whole pan.


beerchug

Moderated by  Allan Gill, Jon W. Whitley 


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