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66 BSA - Project #645482 03/24/16 2:21 am
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DesignHowie Offline OP
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I have finally had some time to work on this project. Bought it a couple years ago from San Diego, since my brother lives there i sent some funds and he checked it out. Low and behold the PO created a death trap. So it was cut up, and is slowly being rebuilt. By no means are my intentions to restore but simply to have fun and create a unique bike in my own style.

My apologies if my grammar is by no means correct as I am a designer and my brothers are all the mechanics whome I learn from.

[Linked Image]

Just Mocked up the rear end, also had to put in a new backbone and lathed a new neck.

[Linked Image]

Yes, I know the brake is upside down, (Thanks Gil for explaining this) just quickly mocking it up - I was looking for some advice here though. The nut & axle in this picture are pretty much stripped. Will I be okay just using a die and shrinking the OD of the axle? Also, what is the function of the large smooth surface on that nut? can a regular one take its place?

Thanks, Howie

Last edited by DesignHowie; 03/24/16 3:07 am.
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Re: 66 BSA - Project [Re: DesignHowie] #645484 03/24/16 2:57 am
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Allan Gill Offline
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The large smooth surface is for adjusters to ride against. The adjusters lock so your wheel position setting always remains.

The brake is the correct way up, but you have no room for adjustment. The torque stay that ( the mounting end is resting on your lower arm at the moment) wants to be as close to vertical( 6 o clock )as possible. You can not achieve this with your setup and if you could you would have little to no movement for chain adjustment.

Your steering rake also looks extremely tight.


beerchug
Re: 66 BSA - Project [Re: DesignHowie] #645487 03/24/16 4:31 am
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markoz Offline
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Rake does look rather standing up.

Re: 66 BSA - Project [Re: DesignHowie] #645500 03/24/16 7:44 am
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gavin eisler Offline
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looking at the rake/ frame/ forks? and imagining the handling qualities, the words drunken giraffe and shopping trolley leap into mind.


71 Devimead A65 750
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Re: 66 BSA - Project [Re: DesignHowie] #645501 03/24/16 7:50 am
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Would you like oak or mahogany for your coffin?


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Re: 66 BSA - Project [Re: DesignHowie] #645541 03/24/16 12:03 pm
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Simonofsweden Offline
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Yepp, what the others said. That thang looks dangerous! You probably now this since you call it a "death trap" but some consideration as to rake and trail would be adviceable for this build (and maybe the stretch as well...). 10-15 cm (that's 'bout 4-6 inches in your language) trail would be about right for this length of forks.
But like I said, you probably know this...

Will be nice to follow this one, good luck!


I make misstakes on a daily basis!
Behold a selection of my different means of transportation (very poorly updated these days...) http://www.flickr.com/photos/bohuslan/sets/
Re: 66 BSA - Project [Re: DesignHowie] #645559 03/24/16 3:32 pm
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DesignHowie Offline OP
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Hey guys, thanks for the responses. the rake will be at 30degrees and the old Harley springer will be lathed down so it sits at the current stance you are seeing. The front bars of the springer have a step in them so I cant do quick mockups till I cut them down.

Hope this helps address some concerns. I am currently trying to shore up the rear-end.

Could anyone answer my question posted above about reducing the OD of the axle? The threads are pretty darn screwed up so I would like to hit it with a die.

Thanks!

Last edited by DesignHowie; 03/24/16 3:40 pm.
Re: 66 BSA - Project [Re: DesignHowie] #645565 03/24/16 4:23 pm
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Simonofsweden Offline
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Hahaha! I didn't look close enough to notice that the fork legs is in fact is half a springer. The laugh is on me no doubt!

You could replace that special nut with a different nut AND a thick washer. This one is just the two of them merged together. Guess it could be ok to undersize the thread but some problems would be as to if thread goes to deep it will not rest well in frame. And if thread on the other hand is not cut far enough you will not be able to tighten it properly.

I would probably try with not buying a new axl and instead re-thread it. Then after having the bike all of a sudden start steering to the side on the highway due to the rear wheel coming loose I would buy a new axl. You could try doing it my way as well, or you could go the safe non-cheap way and buy a new axl.


Last edited by Simonofsweden; 03/24/16 4:25 pm.

I make misstakes on a daily basis!
Behold a selection of my different means of transportation (very poorly updated these days...) http://www.flickr.com/photos/bohuslan/sets/
Re: 66 BSA - Project [Re: Simonofsweden] #647074 04/03/16 10:10 pm
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DesignHowie Offline OP
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Hello guys,

I will be shortening the springer this next weekend and in the meantime I have a question. Can I use this old fire extinguisher as my oil bag? They are 1.5qt roughly 17x3 in. Thanks for the feedback.


[Linked Image]

Last edited by DesignHowie; 04/03/16 10:11 pm.
Re: 66 BSA - Project [Re: DesignHowie] #647115 04/04/16 8:46 am
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GrandPaul Offline
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Originally Posted by DesignHowie
Can I use this old fire extinguisher as my oil bag?


Not sure who came up with the term "oil bag" (instead of oil tank), but to many of us classic bike enthusiasts, using that phrase is like scraping a rake on a chalk board.

To the topic: it's a little bit small for the proper oil capacity, but if you add an oil filter, it may suffice.

Last edited by GrandPaul; 04/04/16 8:47 am.

GrandPaul (does not use emoticons)
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Too many bikes to list, mostly Triumph & Norton, some BSA & European
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Re: 66 BSA - Project [Re: DesignHowie] #647118 04/04/16 9:07 am
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kevin roberts Offline
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there's no pressure in the tank, so you're okay if your fittings are tight. still a bit on the small side though. can you locate a similar fire extinguisher thats bigger?


every day you do not take a chance is a day of your life that you will never get back.
Re: 66 BSA - Project [Re: kevin roberts] #648289 04/12/16 2:13 am
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DesignHowie Offline OP
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Hey guys, got a little work done this weekend, weather permitting.

[Linked Image]

Springer in the lathe.

[Linked Image]

After its shortened - Red line shows where I need to adjust the rake to. Played with some of the original parts I got the bike with, It was 100% like the bike Darrel rode in the early Walking Dead.

[Linked Image]

Quick photoshop mock-up.

Here is kinda where I am going with it. I am looking for a fat bob tank I can slim down and make the inseam flat along the backbone. I am going to try to hide most of the elctronics between the two tanks. I already built a small box into the tail of the frame, welded some bungs and drilled the farmall leaf spring so it can be bolted down tight.

More to come in a couple weeks. Thanks!

Re: 66 BSA - Project [Re: DesignHowie] #648300 04/12/16 6:03 am
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gavin eisler Offline
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Given the riding position the oil tank size will be fine , by the time the oil heats up you will be in AGONY and have to stop for a break. A brace tube from seat nose to down tube may stop the neck swaying like an egret. The steering head looks very unsupported , maybe a gusset or two would stiffen it up. Your legs will be folded like a half shut knife with the low seat, torture after 60 miles, my back would only last 20 miles with the bars in that position. Is this bike for shows? or riding?

Hiding all the electrics under the tank, hmmm. Sparks/ petrol?
How about using the waste of space behind the motor to fit something quaint like an old school first aid box ( you could keep bandages and painkillers in there as well, you will need them), that would be as duplicitous as the fire extinguisher or a wicker work picnic basket, Yogi bear style.
Ive not seen the Walking Dead, but maybe the Zombie lurch comes from riding a bike like this for a day?
have fun
GE

Last edited by gavin eisler; 04/12/16 6:17 am.

71 Devimead A65 750
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Cagiva Raptor 650
MZ TS 250
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Re: 66 BSA - Project [Re: gavin eisler] #648377 04/12/16 3:41 pm
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DesignHowie Offline OP
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This bike is a fluid process, constantly evolving and changing.

All the gussets and subframe will be added eventually, the whole frame is just tacked together at the moment.

The fire extinguisher was already scrapped as the responses above already dissuaded me.

I am 6'2" 200 pounds and the stance seems ok but Only time will tell and much experimentation.

I hope this addresses some of your concerns.

Thanks, Howie

Re: 66 BSA - Project [Re: DesignHowie] #648387 04/12/16 4:26 pm
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GrandPaul Offline
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The relevant concern should always be YOUR comfort level once on the RUNNING bike, over varying road conditions, for a good few dozen miles AT LEAST.

I've seen plenty of bikes I wouldn't want to sit on, much less ride, whose owners hop right on and ride cross-country.

I just know my back hasn't been able to handle a rigid frame for over 10 years. Also, my years of riding with rearsets and clip-on bars are numbered in single digits...


GrandPaul (does not use emoticons)
Author of the book "Old Bikes"
Too many bikes to list, mostly Triumph & Norton, some BSA & European
"The Iron in your blood should be Vintage"
Re: 66 BSA - Project [Re: DesignHowie] #648419 04/12/16 6:45 pm
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Vetterdog Offline
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Forward controls?


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Re: 66 BSA - Project [Re: DesignHowie] #648464 04/13/16 4:26 am
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Simonofsweden Offline
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When building a hard-tail springer custom I think its kinda fair to say that you left concerns for comfort already from the start haven't you?


I make misstakes on a daily basis!
Behold a selection of my different means of transportation (very poorly updated these days...) http://www.flickr.com/photos/bohuslan/sets/
Re: 66 BSA - Project [Re: DesignHowie] #648479 04/13/16 7:11 am
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gavin eisler Offline
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I kindof like the fire extinguisher oil tank, a big filter on each side for symmetry and the volume would be up to 4.5 pints, usable.


71 Devimead A65 750
56 Norbsa 68 Longstroke A65
Cagiva Raptor 650
MZ TS 250
The poster formerly known as Pod
Re: 66 BSA - Project [Re: gavin eisler] #653833 05/22/16 8:20 pm
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plungerman Offline
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Hey Howie interesting project I'll see what your going for a bobber. I'm sre you'll sort it out. I would concentrate on safety or showmanship of it if you will. I could ride that hardtale cause i have an iron you know what. By the way your motor isn't a 66 its a 67 or later. Anyway get your chassis and wheels right and then the Thunderbolt motor in top shape.


1963 StarTwin project

1966 Spitfire resto
Re: 66 BSA - Project [Re: DesignHowie] #661087 07/18/16 1:53 am
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DesignHowie Offline OP
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So finally got a couple hours to play again. Revised the frame and adjusted the rake to be at 32 degrees. Will need to double check everything but I am liking how its all coming together.

[Linked Image]

Re: 66 BSA - Project [Re: DesignHowie] #661089 07/18/16 2:08 am
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DesignHowie Offline OP
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Picked up a new headlamp, solidbrass truck spotlight. Also built a new triple clamp in Solidworks to have CNC'd out, just so happened to meet a retired engineer that said I can send him projects anytime and he will do for practically just what he buys the materials for. The only thing I cant figure out yet is how I am going to mount the handlebars. I am leaning towards having them clamped right into the triple clamp.

[Linked Image]

[Linked Image]

The leaf spring drilled out was a nightmare. Took forever and a couple bits later. Leaf spring idea was inspired by the "bullet" by falcon motorcycles.

Re: 66 BSA - Project [Re: DesignHowie] #661093 07/18/16 3:27 am
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Peter R Offline
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Another fine British bike turned into a useless deathtrap.
just my 2c

Last edited by Peter R; 07/18/16 3:32 am.

Peter.
1974 Commando 850
1972 Trident T150T
1961 Goldie DBD34
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Re: 66 BSA - Project [Re: Peter R] #661117 07/18/16 9:14 am
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GrandPaul Offline
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Originally Posted by Peter R
Another fine British bike turned into a useless deathtrap.


It's just the egg. No bike was harmed, all the rest is one-off custom built.


GrandPaul (does not use emoticons)
Author of the book "Old Bikes"
Too many bikes to list, mostly Triumph & Norton, some BSA & European
"The Iron in your blood should be Vintage"
Re: 66 BSA - Project [Re: DesignHowie] #661132 07/18/16 11:59 am
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kommando Online Content
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The deed was performed by a DPO, once in that state you can't complain about any work being done, especially when it makes it ridable..

Re: 66 BSA - Project [Re: DesignHowie] #661148 07/18/16 3:32 pm
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Allan Gill Offline
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I agree, I'm going to chop into the frame for my racer, but I was so happy when I found one which had already been hacked about.


beerchug
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