Author Topic: Speedo Disassemble, Inspect, Service, Reassemble, Hope  (Read 18900 times)

G/F DAVE

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Re: Seedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #15 on: 05.11. 2008 12:57 »
CIDER 1  I tried to contact my man who supplied with new dials but as yet he has not got back to me. I have a new dial in kilometers (180kph) if you are going continental. G/F DAVE

Offline Cider1

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Re: Seedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #16 on: 06.11. 2008 08:22 »
Hi Dave
Thanks for the reply, but I think I'll stick with mph. A decent replacement will turn up sometime.

Frank  *smile*

Online RichardL

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #17 on: 06.11. 2008 11:53 »
Gents,

On checking the overnight (for me) new posts, I stumbled on the fact that I spelled "Speedo," "Seedo" when I started this topic. I apologize for having drawn others into my web of ignorance, leading to all posts in this topic with a "Seedo" heading. I couldn't live with it and changed all my own posts to the correct spelling. You all can change the spelling in your own posts, as you see fit, of course. I'd do it, being the guilty initiator, but I can't get to them.

For those of you who noticed my error and said nothing, so I might save face, my eternal thanks.

Erling, is there a spell checker here that I (and, it seems, others) have missed? If not, wish there were.

Richard L.
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020. This year it's a solo or pillion ride in dapper attire. Watch website at https://www.gentlemansride.com for details.


Offline LJ.

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #18 on: 06.11. 2008 12:25 »
Quote
a "Seedo" heading

Sigh! and here was I thinking of some sort of pornographic excitement comming from your speedo. It 'does' measure how fast you go doesn't it?  *eek*

Hear Hear! for a spelling checker!
Ride Safely Lads! LJ.
**********************
1940 BSA M20 500cc Girder/Rigid- (SOLD)
1947 BSA M21 600cc Girder/Rigid-Green
1949 BSA A7   500cc Girder/Plunger Star Twin-(SOLD)
1953 BSA B33  500cc Teles/Plunger-Maroon
1961 BSA A10  650cc Golden Flash-Blue
1961 BSA A10  650cc Golden Flash-Red

Online bsa-bill

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #19 on: 06.11. 2008 14:13 »
Not sure where my spelling checker comes from ( probably the browser - Firefox) but it checks as I type.
I used to use a Sinclar QL computer that had a spell checker that checked and beeped with every key press, so you new at which letter you had gone wrong, you could then bring up a popup that would give you a list of suggestiond that you could select and insert.

Alas the QL had no internet facility so I now use the proverbial PC.

All the best - Bill
All the best - Bill
1961 Flash - stock, reliable, steady, fantastic for shopping
1959 Rocket Gold Flash - blinged and tarted up  would have seizure if taken to  Tesco

Online RichardL

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #20 on: 04.01. 2009 16:38 »
Hello,

Because my top tree is from an A50, I think mine is an unusual approach for mounting a single Smith's Chronometric speedometer. Here are a few photos from before mounting the speedo. I found an obscure (I think) BSA part that goes under the fork nut and carries the more common instrument mount. You can see in the photo where I ground away part of this mount because it was never intended for the dropped ends of the A50 tree. Sorry if this is mundane, simplistic and something nobody else will ever need to do, but, I think enough of you are gadget-heads and bodgers that there might be some interest.

By the way, you can see the existing "Cateye" bicycle speedo in the photos.

Richar L.
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020. This year it's a solo or pillion ride in dapper attire. Watch website at https://www.gentlemansride.com for details.


Online trevinoz

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #21 on: 04.01. 2009 22:17 »
My Friend, that "obscure" part comes from either a RGS or a Lightning Rocket!
Trev.

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #22 on: 05.01. 2009 01:26 »
The RGS uses a longer finger bracket which is bent upwards. Other than that, it looks OK to me.
 Trev.

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #23 on: 12.04. 2009 01:41 »
Gentlemen,

While I think I might have done a fine job of restoring my chronometric speedometer, I am yet to test it. Regardless of my perhaps illfounded confidence in the work I did on the mechanism itself, my stupidity continues to amaze me. There is a small fact about these mechanisms that I have now learned the hard way, specifically, they come in clockwise and counterclockwise versions. My speedo wants CCW (when looking into the input) and the cable is spinning in the other direction. "Hey, why isn't the needle moving?" was the first quesion to myself when I finally tried it yesterday.

So, one question I'm asking here is: is there a way to convert CCW to CW with the parts existent in the CCW mechanism? For example, might it involve turning over the escapement gear and that's it? Would the three little cams stay as they are? Obviously, I did not make a point of learning and taking into my soul every intricacy of the fairly complicated movement.

The other question I have is: is there an in-line gearbox I could get that is purpose-designed (or would just work) to solve this problem.

Your advice, sympathy and the indetectability of your snickering are all appreciated.

Richard L.
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020. This year it's a solo or pillion ride in dapper attire. Watch website at https://www.gentlemansride.com for details.


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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #24 on: 12.04. 2009 16:56 »
I hope this is not obnoxious, but I am responding to my own post to keep the question on the front page, as I am anxious to resolve my speedometer problem. I believe that there are some in our group who can help, even if it's to say, "tough luck, Richard, it can't be resolved short of selling it off on eBay." Please don't be surprised or too angry if I repeat this process in hope of eventually getting some much-needed aid.

Richard L.
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020. This year it's a solo or pillion ride in dapper attire. Watch website at https://www.gentlemansride.com for details.


Offline MikeN

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #25 on: 12.04. 2009 18:25 »
Cider 1 /Frank,
 I work with a chap who is a very good friend of Dave Woods the speedo man.Last time I visited Dave at his workshop I saw his selection of chronometric faces/dials (I think he said there were about 150 to choose from).I am pretty sure he will sell you a correct dial.He always has them for sale on his autojumble stall. He will know exactly what style you require for your model/year. If you get stuck and require any specific questions about repairing chronometrics ask me and I will find out the answer for you.
Mike

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #26 on: 12.04. 2009 18:38 »
Hi,

First, I am suffereing from name confusion, is it Frank or Mike? Frank, I think.

Anyway, thanks for this, I bet your contact with Dave Woods will pay off in getting to the bottom of my question, though, others, please still chime in. As it turns out, the dial face is fine. The problem is that the mechanism itself wants CCW at its input and the speedo gears at our transmissions want to deliver clockwise. I would greatly appreciate your putting this question forward with Dave Woods so I can learn if there is a "simple" fix. ("Simple" in quotes because, even if the mechanisms intended input rotation can be changed with existing parts, the work is going to be exacting and maticulous.)

If it would be easier for you and your workmate, I could contact Dave directly, if I was forwarded his contact information, that is, unless he is a recluse or adverse to giving away free information.

Thanks, again.

Richard L.
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020. This year it's a solo or pillion ride in dapper attire. Watch website at https://www.gentlemansride.com for details.


Offline MikeN

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #27 on: 12.04. 2009 19:15 »
Close, Its Mike,
  Dave Woods phone number is 01243 542521 and he is near Chichester.He goes to most of the big autojumbles
  To convert a chronometric speedo or rev counter from clockwise to ccw involves a complete stripdown and a small milling operation on the die cast chassis of the speedo .
  The reason i know this is because he used to give the chassis to me to do the milling .
 The other thing I know about chrono speedos is that any speedo can be rebuilt into anything you require. clockwise, anti-clock, rev counter, speedo,5" vincent ,even the "D" shaped bantam . They all use the same internal mechanism.
  So a clockwise bantam speedo can be exchanged/converted  into a 5" Vincent anti-clock rev counter.But it will cost you.
Mike

Offline Cider1

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #28 on: 12.04. 2009 21:50 »
Hi MikeN
Thanks for the info.  I'll contact Dave later in the week.

Frank  *smile* *smile*

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Re: Speedo Disassemble, Inspect, Service, Reassemble, Hope
« Reply #29 on: 12.04. 2009 22:54 »
Mike,

Thanks, so much. This gives me hope (one of the basic needs in my speedometer rebuild). I will call Dave and ask if he is willing to share the specifics, then, I will need to decide if have the tools and skill to do the job.

Richard L.
Plan on signing up for the world-wide 2020 DISTINGUISHED GENTLEMAN'S RIDEon September 27, 2020. This year it's a solo or pillion ride in dapper attire. Watch website at https://www.gentlemansride.com for details.