Dynamo as emergancy fan motor :( HELP )

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Dynamo as emergancy fan motor :( HELP )

Postby wren1710 » Thu Jun 21, 2018 10:54 am

Background, the fan belt pulley on the crank shaft has started to disintegrate
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:shock:

My question is: can you use the dynamo as an emergency motor to power the fan and water pump? so I can get it the 30 miles to millennium minors up in Manchester, where its due for its annual service anyway.

It does still sort of work the fan/pump/dynamo like this and I did do about 25 miles before I found what it was that was making the noise but its not good.
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Re: Dynamo as emergancy fan motor :( HELP )

Postby Panky » Thu Jun 21, 2018 11:08 am

I wouldn't run it like that, if it goes then it's probably going to make a mess of the radiator :( I'm sure someone on here has a spare they can send you.
A dynamo can be run as a motor but it would soon run the battery down, never heard of anyone using it as a fan drive though.
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Totally agree with Panky, and you'd definitely destroy your dynamo in the process. If someone has a spare pulley, it shouldn't be too much of a job to change it.
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Re: Dynamo as emergancy fan motor :( HELP )

Postby 200272 » Mon Jul 02, 2018 1:36 am

Interesting, the front pulley went on Van2 last week, I only noticed when Luke was topping the radiator up.

I had a spare but it has a thick piece of metal on the front compared to the pressed steel original, what’s the difference?

Thanks Tom.
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Re: Dynamo as emergancy fan motor :( HELP )

Postby Panky » Mon Jul 02, 2018 9:12 am

It could be a dampened pulley off a 1275 Mini. No problem using it but, if it is that type, the timing marks are in a different position
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Re: Dynamo as emergancy fan motor :( HELP )

Postby 200272 » Mon Jul 02, 2018 1:01 pm

Ah ok that’s great.

Thanks.
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