Hellfire
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 posted on 4/2/04 at 12:26 AM |
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Speedo Clock dilemma
I guess this is a last ditch attempt to try to extract information about our 'blade clocks.
We have a pre '95 blade engine that used the sprocket to collect a signal to use for the speedo. My question is merely this:
Has anyone out there in locostbuilder-land adapted the original clocks to function correctly by using an alternative pickup to the one on
the sprocket.
We have seriously hit a wall one this one lads, and any help would be really appreciated. We would rather not use the Halfords bike speedo, indeed we
are contemplating fitting a 'digidash' if we really need to - but the cost is an obvious mute point at the moment.
Any electronics boff's out there that could even point us in the right direction would be great. 
Thanks in anticipation
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tadltd
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| posted on 5/2/04 at 01:10 PM |
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Did you try posting this on the 'electrics' forum? I'm sure there's a couple of guys on there that could help you.
Have you also tried the Yahoo BEC forum? Again, I'm pretty sure this has been covered at some point.
IIRC - the bolts that hold the flanges together can be used as a pick-up for the speedo, but it does involve some electronic fettling to get it to
work, which I know nothing about!
Steve.
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ceebmoj
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| posted on 8/2/04 at 08:41 PM |
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Hi
As I see it if you want to stick with the same clocks you have two main option.
I am not sure what type of sensor it is can you provide a picture. I assume that it is a hall effect sensor and hence senses magnetic field as a
ferrous metal passes near by.
One as tadltd suggest try mounting the sprocket sender on another part of the car an pick the pulses up there however you will have the problem of
maintaining the same ratio of sprocket turns to distance travelled. To do this to can try making up a to the weal that is mounded on the drive some
where with a correct number of teeth to provide the same number of pulses per unit distance travelled.
Or option two you can make up some electronics that count the pulses provided from the sensor from the sprocket and only give out a pulse say every 5
pulses from the sprocket. I can make one of these up for you and it should be very easy. However I will need to know what tip of sensor it is for
sure.
or I could a new sensor and just provide the pulses to the existing clocks this may be a better option as with the sprocket bolted to a drive shat it
may throw the existing sensor out deepening on its type and function.
Blake
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Jon Ison
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| posted on 8/2/04 at 09:54 PM |
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the yahoo BEC list would im sure come up with an answer for you.........
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Jon Ison
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| posted on 8/2/04 at 09:55 PM |
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http://uk.groups.yahoo.com/group/bike-engined-cars/
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Hellfire
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| posted on 11/2/04 at 12:42 PM |
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Signed up...
now a member on the yahoo site...
I wonder if anyone spots us... 
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Mk-Ninja
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| posted on 11/2/04 at 01:03 PM |
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Not hard to miss as mkindyhellfire
I'm sure I've got one, just don't know where I've put it
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Hellfire
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| posted on 11/2/04 at 11:07 PM |
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Damned it...
and I thought we wouldn't be spotted! 
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