|
|
|
Posts: 1,654
Joined: August 2006
|
|
|
Forums35
Topics77,075
Posts792,716
Members12,520
| |
Most Online230
Mar 11th, 2023
|
|
|
|
Joined: Mar 2011
Posts: 284 Likes: 29
Britbike forum member
|
OP
Britbike forum member
Joined: Mar 2011
Posts: 284 Likes: 29 |
Mark, how on earth do you ride that with clip-ons/ace bars and forward footrests?
My back would be in about 3 pieces after about an hour. has been posted earlier, but no problem with the riding position it is for this bike I'm searching for an alu-tank https://swf-ignitionsystems.nl/wp-content/uploads/2021/08/MNDY87551.mp4
|
|
|
|
|
Joined: Apr 2013
Posts: 390 Likes: 18
Britbike forum member
|
|
Britbike forum member
Joined: Apr 2013
Posts: 390 Likes: 18 |
I have always wondered why no one has tried polypropylene to make a BSA Spitfire tank.
I APOLOGIZE FOR THE USE OF CAPS. I CAN ONLY TYPE WITH MY RIGHT HAND SO USING THE SHIFT KEY IS BEYOND MY CAPABILITES.
The Devil is in the details.
1957 BSA A10 Spitfire Scrambler (numbers matching, very correct, very nice condition)
1965 BSA A65 Lightning Rocket "Clubman" (restored)
1966 BSA A65 Spitfire MK-II (restored)
1967 BSA A65 West Coast Hornet (under restoration)
1975 Norton Commando Roadster (2100 miles)
2001 Kawasaki W650
|
|
|
|
|
Joined: Jan 2004
Posts: 5,733 Likes: 258
Britbike forum member
|
|
Britbike forum member
Joined: Jan 2004
Posts: 5,733 Likes: 258 |
If you mean a plastic tank like many modern bikes, they are roto -molded. You have to make a mold and find a shop that will make the three or four you might sell.
|
|
|
|
|
Joined: Aug 2001
Posts: 864 Likes: 39
Britbike forum member
|
|
Britbike forum member
Joined: Aug 2001
Posts: 864 Likes: 39 |
How about a graphite epoxy tank or epoxy glass tank. You would cut the bottom out of a bad glass tank and make a plaster Paris mold to lay in the cloth. I think the upper tank could made from laminated wood saw cut and shaped so it would fit into the original tank. A router could carve out the fill cap cap area and a thin wood star pattern chiseled out for the transfer stat.
If you have a bridge port mill you could really carve out a nice wood pattern. Using the pattern to lay up a ridged mold spray in the gel coat then lay in the cloth to lay in the cloth . The mold is reusable
The story goes at BSA workers were giving tooling to take home to build the tank in one evening. Many of which you will find a signature or initials scratched into the bottom.
I know I’m over simplifying it but can’t be that hard. Guys a making electric starters, belt drives and end feeds etc.
|
|
|
|
|
Joined: Jan 2004
Posts: 5,733 Likes: 258
Britbike forum member
|
|
Britbike forum member
Joined: Jan 2004
Posts: 5,733 Likes: 258 |
You would have to coat the inside with something to keep the ethanol from eating the epoxy. I am not sure you could use Caswell with fibreglass, hardens too quickly.
|
|
|
|
|
Joined: Aug 2001
Posts: 864 Likes: 39
Britbike forum member
|
|
Britbike forum member
Joined: Aug 2001
Posts: 864 Likes: 39 |
No, the deal is epoxy resin does not need lining, the polyester resin does. So making a tank out of epoxy resin or carbon fiber impregnated with epoxy resin would not need lining
|
|
|
|
|
Joined: Jan 2004
Posts: 5,733 Likes: 258
Britbike forum member
|
|
Britbike forum member
Joined: Jan 2004
Posts: 5,733 Likes: 258 |
As I understand it, only phenol novalac epoxy is resistant to ethanol. Other types will soften.
However, might be irrelevant as california does not allow fibre glass fuel tanks to be sold for road use. I do not know if Spitfire tanks are grandfathered in.
|
|
|
|
|
Joined: Aug 2001
Posts: 318 Likes: 8
Britbike forum member
|
|
Britbike forum member
Joined: Aug 2001
Posts: 318 Likes: 8 |
I purchased a steel tank from Baxter. Very nice. He may still stock them, it has been some time ago.
|
|
|
|
|
|
|
or 
