Lock down projects

malcward · Post by **malcward** » Tue May 19, 2020 7:08 pm

Hi a couple of pictures of my lock down projects.
What has everyone else been up to
Cheers Malc

Ian Hingley · Post by **Ian Hingley** » Tue May 19, 2020 8:40 pm

Is that a Bandit/Fury frame?
Where's the A65 motor going?

Cheers

Ian

malcward · Post by **malcward** » Tue May 19, 2020 9:17 pm

Hi Ian
The frame is an actual fury/bandit one suppose I should call it a bandit as its having a t100 engine in it.
The A65 is a 66 spitfire which I am slowly trying to get back to standard.
cheers malc

Jack Gifford · Post by **Jack Gifford** » Wed May 20, 2020 5:26 am

Typical "stir crazy" tasks. Example- cleaned out trash under the workbench for the first time since building this house 45 years ago. I discovered stuff I didn't even remember having.
Picture of "found" tools to give to grandsons. And they are all functional!

beat · Post by **beat** » Wed May 20, 2020 8:40 pm

making more way in a front suspension:

: cut the headstock

: reweld headstock

: cut fork

: prolong fork

: all back in place !

suspension plus 75 mm, total now 230 mm

Post by **minetymenace** » Thu May 21, 2020 8:25 pm

Some of us have been working, and life carries on as normal. I wouldn't mind being sent home, I don't care for the illness bit, but assuming I was fit, I would be able to finish my bike shed......

beat · Post by **beat** » Thu May 21, 2020 8:39 pm

minetymenace wrote: ↑Thu May 21, 2020 8:25 pm finish my bike shed......

Whowwwww

I ask myself: what dos the hanging Sign sais ?

"" beware of the Beast ""

beat

Ian Hingley · Post by **Ian Hingley** » Sun May 24, 2020 3:50 pm

My 72 A65 had a plain white tank which had a couple of noticeable dents.

Thought i'd try a bit of filling and aerosol (rattle can) spraying.

Still need to flat back and polish the clear coat lacquer, but definitely an improvement...

Cheers

Ian

beat · Post by **beat** » Sun May 24, 2020 8:17 pm

Ian Hingley wrote: ↑Sun May 24, 2020 3:50 pm definitely an improvement

koncretekid · Post by **koncretekid** » Sat Jun 06, 2020 11:38 pm

Beat,
Does your new front suspension on your sidecar rig have negative trail? Looks like the front axle may be out in front of the steering axis, but I can't tell from the photo.
Tom

Jack Gifford · Post by **Jack Gifford** » Sun Jun 07, 2020 6:28 am

koncretekid wrote: ↑Sat Jun 06, 2020 11:38 pm ... Looks like the front axle may be out in front of the steering axis...

Wouldn't that be positive trail?

koncretekid · Post by **koncretekid** » Sun Jun 07, 2020 10:34 am

From Cycle World: "Trail (B) is measured in distance (inches or millimeters) between the point of the front wheel’s contact with the ground and a line drawn through the axis of the steering head.

Under normal operation, this contact point is always some distance behind the projected line—somewhere between 2 and 4 inches (5–10 cm). Think of it as how far the contact patch trails behind the steering axis. Too much trail makes a motorcycle difficult to turn; too little makes it unstable."

If we speak of trail as being 4", I'm considering that positive. So if the point of contact of the front wheel is ahead of the projected line thru the steering axis, I would call that negative, rightly or wrongly. In any case it is opposite of what we normally see, and it seems as though it would make the steering twitchy, or worse. But then I've never driven a sidecar rig.

Tom

beat · Post by **beat** » Sun Jun 07, 2020 8:03 pm

koncretekid wrote: ↑Sat Jun 06, 2020 11:38 pm Does your new front suspension on your sidecar rig have negative trail?

hi Tom,

this is a question I been asked very often.

the answer is simply : it has zero, nill, just right up point to point.

this in the suspension position of " full back ", - no free slap seted up.

I know a few riders they prefere a " positive " trail of around 5 to 15 mm because when the front wheel only is " diving in " to suspension, it comes
automaticli to a " negative" effectness because the swing arm radius.

the result of a twitchy steering is easy to compensate with a hard steering damper, this I have in use anyway .

IMO, a zero trail makes a sidecar bike more aggressive, a positive trail makes it more calm.
last season, when we started racing completely new, the swing arm was set to 25 mm trail positiv.
this year, as I have made a new arm, I set it up to zero

beat

koncretekid · Post by **koncretekid** » Mon Jun 08, 2020 2:24 am

Thanks for your explanation. I have considered putting a sidecar on the Bonneville land speed bike, but I don't think I'll go with "0" trail!
Tom

Jack Gifford · Post by **Jack Gifford** » Mon Jun 08, 2020 5:58 am

koncretekid wrote: ↑Sat Jun 06, 2020 11:38 pm ... Looks like the front axle may be out in front of the steering axis...

Sorry I didn't express my comment correctly. I just wanted to point out that trail is measured (from steering axis) to wheel/ground contact, not to the axle. Thus, given reasonable rake, it's quite common for the axle to be forward of the steering axis, and still have positive trail.

I also have to thank beat for sharing insight into sidecar steering.

beat · Post by **beat** » Mon Jun 08, 2020 9:05 pm

Jack Gifford wrote: ↑Mon Jun 08, 2020 5:58 am I also have to thank beat for sharing insight into sidecar steering.

no problem with this, no secrets on BSA's.

IMO, this is what this beautiful forum is for....

beat

BTW, Tom, - what is the " Nachlauf " Trail on your fast record fraim ?

it must be huge, because no bends to go, - just fast straight out !

beat

koncretekid · Post by **koncretekid** » Mon Jun 08, 2020 9:26 pm

The trail of my Bonneville bike (B50 now 600cc) is about 4-1/2" with a 30 degree rake angle.

Jack Gifford · Post by **Jack Gifford** » Tue Jun 09, 2020 6:34 am

Tom- I suppose you heard that the Loring spring meet is cancelled?

crankbuster · Post by **crankbuster** » Tue Jun 09, 2020 1:53 pm

Lockdown project: Tank draining through the carb: 3D metal printed threads

Post by **minetymenace** » Tue Jun 09, 2020 2:55 pm

Love the reflection!
Why drain the tank through the carb?

crankbuster · Post by **crankbuster** » Tue Jun 09, 2020 6:00 pm

1. Just got bored.
2. Because I can (now)
3. Reflection is from a factory photo belonging to the University of Birmingham, (Creative Commons License)
Interested to see if I could model a thread that would print and be functional, so I was surprised that it fits:

beat · Post by **beat** » Tue Jun 09, 2020 7:36 pm

koncretekid wrote: ↑Mon Jun 08, 2020 9:26 pm 4-1/2" with a 30 degree rake angle.

interresting.
I go for 27 ° angle, it makes it evan a bit more " quickly reacting"

crankbuster wrote: ↑Tue Jun 09, 2020 6:00 pm a thread that would print and be functional,

congratulating !

beat

skippy · Post by **skippy** » Wed Jun 10, 2020 12:06 am

So you can 3D print them from your cad drawings. for flote level checking that would work fine.

Post by **minetymenace** » Wed Jun 10, 2020 8:00 am

Ah, float level checking...

Crankbuster, we print nylon at work and regularly print threads, we sometimes have to clean them up with a tap or die, and in nylon they aren't that strong, but it amazing what you can print, hold down clamps with integral springs was an eye opener. We used to be charged by volume and then for cleaning by the item, so we got good at packing many parts into a cube, then we enclosed the whole in a thin mesh cage, this kept all the small parts together and also meant that we only got charged for cleaning one piece! The cage got cut away and discarded, but it gave goods inwards inspection a nightmare.

malcward · Post by **malcward** » Sat Jul 18, 2020 7:27 pm

Bit of progress on the t100 bandit.
Cheers Malc

Keefe · Post by **Keefe** » Tue Jul 21, 2020 5:23 pm

That's looking really nice.

Keith

Post by **minetymenace** » Wed Jul 22, 2020 8:19 am

I agree, there is something about a mono-shock Bandit frame.

SteveS · Post by **SteveS** » Wed Jul 22, 2020 11:08 am

.
Well spotted Gerry

but many a true word spoken in jest. That frame is crying out for a monoshock conversion. Apologies to the purists

.

: RD250LC RD350LC Hybrid Rolling Chassis recently for sale on ebay UK

.

malcward · Post by **malcward** » Sat Aug 01, 2020 7:08 pm

No longer a monshock, sorted the wiring harness and a few more bits bolted on,
Cheers Malc

malcward · Post by **malcward** » Sat Aug 22, 2020 5:13 pm

After a bit of head scratching and lots of measuring, finally completed the rear brake pedal and brake light switch bracket, the original fury one for comparison below.
Cheers Malc

malcward · Post by **malcward** » Sat Oct 31, 2020 12:40 pm

Another piece of completed, had to make some mods to the front to clear the frame, as this side off the frame isn't offset for clearance, fury original is above my mirror copy.
Cheers Malc

malcward · Post by **malcward** » Sat Oct 31, 2020 5:46 pm

Got round to fitting it today
Cheers Malc

beat · Post by **beat** » Sat Oct 31, 2020 7:46 pm

malcward · Post by **malcward** » Wed Nov 25, 2020 6:35 pm

Trial fit for the oil tank I have fabricated
Cheers Malc

Jack Gifford · Post by **Jack Gifford** » Thu Nov 26, 2020 6:16 am

Best looking oil tank ever!

malcward · Post by **malcward** » Sat Dec 12, 2020 8:08 pm

Thanks for the compliment Jack, it was quite a fiddly part to make. Completed the inlet manifolds and fitted the carbs, as you see they are tucked away just like the original Bandit.
Cheers Malc

B44Claus · Post by **B44Claus** » Mon Dec 14, 2020 10:45 am

Hi Malcom,
Weren't you building a BSA Fury from parts? Have you used the frame from that project to build the T100 Bandit?
Just curious.

Brgds,
Claus

malcward · Post by **malcward** » Mon Dec 14, 2020 11:44 am

Hello Claus.
I managed to acquire another frame and was hoping to build a Bandit, but the engine parts are impossible to find, so I decided to build a t100 engined version of the Bandit, using as many standard parts as possible. The modifications I have kept to a minimum. I had to add extra brackets to the frame for the engine mounts, swap over the rear shock mounts, turn over the swinging arm and swap over the brackets.
The Fury is still an ongoing project, this build is a good learning experience for when I put the Fury together, also I have several common things to make for both, for example seats, rear brake rods etc.
Thanks for the interest.
Cheers Malc

B44Claus · Post by **B44Claus** » Mon Dec 14, 2020 1:57 pm

Thanks Malcom,

I've been following the BSA Fury saga with interest, - in particular Angus Campbell's frequent updates on YouTube. It's amazing that BSA invested in production line, tooling, printed brochures and spare parts manuals and then terminated the project after a couple of handfuls of preproduction bikes were built.
Is there any knowledge of how many complete Fury's and Bandits were build? BSA must have begun production of parts for the bikes and apparently there are quite a few frames around. I remember an old(25 Y plus) article in Classic Bike where they stood in industrial building among stacks of Fury/Bandit frames, exhaust pipes and other stuff. Can't remember if the article was about John Bloor or about Holder who bought the remains of Velocette.
Anyway, best of luck with your Fury project.

Brgds,
Claus

malcward · Post by **malcward** » Mon Dec 14, 2020 2:42 pm

Hello Claus.
Thanks for the interest.
There seems to be varying figures on exactly how many were built, somewhere between 20 and 30, but I can't confirm that number, some were just show models, some were road test bikes that didn't have production parts on them, others seem to be exactly what was in the parts book.
I would love to see that article you mentioned, if you could find it.
Cheers Malc