Author Topic: Considering dynamo belt conversion  (Read 1597 times)

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Re: Considering dynamo belt conversion
« Reply #45 on: 02.06. 2018 16:35 »

 Last time I did it, I packed under the sprocket diametrically with flats & wedges, and gave the loosened nut on the spindle a whack- may need a bit of heat (after packing & wedging), or even a tap on one side of the sprocket to whack it cock-eyed...
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia

Offline RoyC

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Re: Considering dynamo belt conversion
« Reply #46 on: 02.06. 2018 18:04 »

 Last time I did it, I packed under the sprocket diametrically with flats & wedges, and gave the loosened nut on the spindle a whack- may need a bit of heat (after packing & wedging), or even a tap on one side of the sprocket to whack it cock-eyed...
Thanks again lads.
Got it off without any damage to it.
I held the pressure on with a 2 arm puller and at the same time tapped it a few times with a hammer and it popped off.  *good3*
My bike is a 1958 A7SS
Stafford UK

Offline Peter in Aus

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Re: Considering dynamo belt conversion
« Reply #47 on: 03.06. 2018 01:58 »
Be careful hitting the shaft as it is pressed on to the gear (67-335) and its easy to knock the shaft through the gear a bit causes all sorts of problems . Been there done that  *warn*  *problem*
I have drilled an taped two holes in the sprocket to attach a puller so as not to have this problem.
Peter

Busselton West Australia
49 A7 longstroke
58 A10  SA

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Re: Considering dynamo belt conversion
« Reply #48 on: 03.06. 2018 04:07 »

 
Quote
Be careful hitting the shaft as it is pressed on to the gear (67-335) and its easy to knock the shaft through the gear a bit causes all sorts of problems . Been there done that  *warn*  *problem*

 I think that's the reasoning behind my suggestion, but forgot that bit thanks Pete
  Good idea about the puller holes  *wink2*
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia

Offline RoyC

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Re: Considering dynamo belt conversion
« Reply #49 on: 03.06. 2018 08:09 »
Be careful hitting the shaft as it is pressed on to the gear (67-335) and its easy to knock the shaft through the gear a bit causes all sorts of problems . Been there done that  *warn*  *problem*
I have drilled an taped two holes in the sprocket to attach a puller so as not to have this problem.
Peter
I tapped on the side of the pulley, not the shaft itself.
Thanks for that anyway, I didn't know about that.
My bike is a 1958 A7SS
Stafford UK

Offline RoyC

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Re: Considering dynamo belt conversion
« Reply #50 on: 03.06. 2018 12:33 »
What is the standard size sprocket on the E3L dynamo ?
I have two E3L dynamos, one has 13 teeth and the other has 11 teeth.  *conf2*
My bike is a 1958 A7SS
Stafford UK

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Re: Considering dynamo belt conversion
« Reply #51 on: 03.06. 2018 13:59 »

 If you plan to use one, would be best to use the 11T anyway- better ratio (I think that's what should be, but why bother with the 13T)
Started building in about 1977/8 a on average '52 A10 -built from bits 'n pieces never resto intended -maybe 'personalised'
Have a '74 850T Moto Guzzi since '92-best thing I ever bought doesn't need a kickstart 'cos it bump starts sooooooooo(mostly) easy
Australia

Offline RogerSB

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Re: Considering dynamo belt conversion
« Reply #52 on: 03.06. 2018 15:01 »
What is the standard size sprocket on the E3L dynamo ?
I have two E3L dynamos, one has 13 teeth and the other has 11 teeth.  *conf2*

Hi Roy, same for A Group 1958-59 models and 1960-62 models. See no 44 in 1958-59 diagram.

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Offline RoyC

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Re: Considering dynamo belt conversion
« Reply #53 on: 03.06. 2018 18:47 »
What is the standard size sprocket on the E3L dynamo ?
I have two E3L dynamos, one has 13 teeth and the other has 11 teeth.  *conf2*

Hi Roy, same for A Group 1958-59 models and 1960-62 models. See no 44 in 1958-59 diagram.
Yes, 11 T is the correct one.
My bike is a 1958 A7SS
Stafford UK

Offline RoyC

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Re: Considering dynamo belt conversion
« Reply #54 on: 03.06. 2018 18:52 »

 If you plan to use one, would be best to use the 11T anyway- better ratio (I think that's what should be, but why bother with the 13T)

I am not reusing them, I am in the process of fitting a DRL belt drive.
My bike is a 1958 A7SS
Stafford UK

Online chaterlea25

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Re: Considering dynamo belt conversion
« Reply #55 on: 03.06. 2018 19:10 »
Hi Roy,
The 13 tooth sprocket is from the C10/11 single models as far as I know

John
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1963 RGS (ongoing)

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Re: Considering dynamo belt conversion
« Reply #56 on: 03.06. 2018 22:53 »
The 13 tooth was used on the E3H short generator on the A7 as well as the C10/11.

Offline RoyC

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Re: Considering dynamo belt conversion
« Reply #57 on: 04.06. 2018 18:24 »
All fitted.

My bike is a 1958 A7SS
Stafford UK

Offline RogerSB

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Re: Considering dynamo belt conversion
« Reply #58 on: 04.06. 2018 20:57 »
Looks good *smile*.

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Re: Considering dynamo belt conversion
« Reply #59 on: 04.06. 2018 21:21 »
Mine should be on soon