Author Topic: Sunbeam  (Read 101 times)

Offline klaudius

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Sunbeam
« on: October 13, 2018, 09:37:33 AM »
Hallo.Ich wanted to introduce myself. My name is Klaudius am 45 years old, I'm in Germany and am interested in English motorcycles from the 20/30 years. Seats 3 Sunbeam from 1932. A 500 and 600 Longstroke and a 600 OHV. All 3 machines are still in the original paint and Fahrbereit.die last was bought here in Cologne in 1932 and is only 16800 km gelaufen.Ich have a question about the valve setting of the Longstroke.Trotz meticulous adjustment to the operating manual is the valve clearance there in warm engine. Otherwise the machine runs absolutely randomly. What am I doing wrong? Please list my Englich, I'm still learning. Thanks a lot. Klauudius

Offline Rex

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Re: Sunbeam
« Reply #1 on: October 13, 2018, 09:41:36 AM »
Nice bikes Klaudius!
I wonder who would have bought a Sunbeam in Cologne in 1932? It must have been horrendously expensive the last days of the Weimar Republic!

Offline iansoady

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Re: Sunbeam
« Reply #2 on: October 13, 2018, 10:24:55 AM »
My Pitmans manual suggests, for the Longstroke side valve,  .006" - .008" (.15 - .2 mm) exhaust and almost zero for the inlet (it suggests the thickness of a cigarette paper although I would use aluminium kitchen foil). Adjusted when cold.

I had a Model 10 of similar age and it ran very well even though wear in the rockers meant the clearances were a bit inaccurate.

https://www.youtube.com/watch?v=0xmznxXj-6Q
Ian
1952 Norton ES2
1982 Moto Guzzi V50

Offline mini-me

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Re: Sunbeam
« Reply #3 on: October 13, 2018, 07:20:08 PM »