Air pump position on the rear loop of a 1953 frame

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Air pump position on the rear loop of a 1953 frame

Postby bennie » Wed Oct 25, 2017 5:06 pm

Hi, should the rear loop of a 1953 frame (in this particular case on a Model 20 but may be on other models too) have the 2 little hooks for the air pump on the left or on the right?
Thanks, Bennie

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Re: Air pump position on the rear loop of a 1953 frame

Postby g5wqian » Wed Oct 24, 2018 5:39 am

i have a 56 model 30 with jampots and the pump is located on the kick start side , on the diagonal tube behind the gearbox , he pump faces to the back , if thats any use for you .
regards
ian

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Re: Air pump position on the rear loop of a 1953 frame

Postby Mick D » Wed Oct 24, 2018 7:30 am

Hi

The 53 parts manual illustration suggests on the right:

53 Rear Frame.png


Regards Mick
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Re: Air pump position on the rear loop of a 1953 frame

Postby Groily » Wed Oct 24, 2018 7:53 am

Mine are on the right, '54 M20 and also on later twin-downtube '61 frame.

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Re: Air pump position on the rear loop of a 1953 frame

Postby alanengineer » Wed Oct 24, 2018 8:15 am

My 53 g9 has them on the right also

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Re: Air pump position on the rear loop of a 1953 frame

Postby raffles » Thu Oct 25, 2018 6:14 pm

If you are looking to weld some fittings on first get your pump
there are at least four lengths
Tony

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Re: Air pump position on the rear loop of a 1953 frame

Postby Janet » Fri Oct 26, 2018 10:21 am

raffles wrote:If you are looking to weld some fittings on first get your pump
there are at least four lengths
Tony
And don't forget to squash the pump in before measuring so it clips into the the fixings and holds in when it lengthens again. I know it sound obvious, but sometimes the obvious gets forgotten.

Janet's tip 1. If you* have a problem with the pump bouncing and falling out ( or are concerned about it getting stolen easily ) put a jubilee clip round it right up the the springy end so it would need quite a bit of force for it to move down and unclip. Janet's tip 2. Always carry a screwdriver to fit so you can take off the pump when you need to.

*Collective 'you' not personal.
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Re: Air pump position on the rear loop of a 1953 frame

Postby bitza » Sat Oct 27, 2018 5:54 pm

Just checked my parts book, right hand side is correct , I-e oil tank side.

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