Sunbeam Motorcycle
Glymph

The Marston Sunbeam Club & Register

 

Parts For Sale

Added 27/03/2015

Following the recent production of forged pistons for Model 9 and Model 90 OHV 500cc models I would like to gauge interest in production of a small batch of pistons suitable for post-1927 Longstroke SV 500cc models. Based on experience gathered from the OHV piston project, it is intended that the 77mm piston will be available in both +0.000" and +0.040" over-sizes. This will cater for cylinders that can be re-bored and those that have been re-lined. The pistons may also be used for earlier machines but, due to differences in specification, they will required some additional engineering work.

It would be much appreciated if you could register any interest by letting me know your requirements either by email or phone.

Sean Kelly
email : info@sunbeamland.com 
phone : +44(0) 7803 669862

 

Added 14/11/2014

AT Gearbox Internals

"AT" Gearbox internals, removed on conversion to constant mesh by Hugh Mcallister, who says they are the best he has seen.

Layshaft 15/20/25 Teeth £120
Main Shaft £60
Sliding Pinion 20/25 Teeth £60
Or £225 the lot

Please contact John Sellars 01723 381810

Added 19/06/2014

For sale, Crank cases, side valve, J numbered in very good condition £120 plus pp Please phone 07970221341 or 01233811557

Exchange, Mag chain cover with model 9 600cc on for the same cover with model 90 on. Please phone 07970221341 or 01233811557 (Scarborough)

Added 24/04/2014

Cylinder head casting with plug insert for Lion 600 1935 - 39. It just needs the face machining. This is the later alloy head and will not fit on the pre-1935 models (so it is no good for my 1934 machine!). Please contact Ken Fisher kjf@apsley.co.uk or 07982 134991.

Added 23/04/2014

New Model 9 pistons

3 x 7.5 : 1 CR +0.020 Model 90
7 x 7.5 : 1 CR +0.040 Model 90
Due in 4 weeks
6 x 6.5 : 1 CR +0.020 Model 9
4 x 6.5 : 1 CR +0.040 Model 9
Price of the pistons is £195 including rings, pin and clips.

PistonPistonPiston

Please note: The compression ratio is quite approximate due to variations in cylinders / heads on actual bikes.

Click here for a spec sheet for the 7.5 pistons spec for the 6.5 pistons will arrive shortly.

Contact : Sean Kelly seankkelly@hotmail.com +44 (0) 7803 669862 for further information

Added 20/01/2014

New Model 90 forged pistons


Piston

Forged Piston has a 7.5 : 1 CR

441281, 7.5 : 1 CR, +0.020" 4 in stock, £195 including rings, pin and clips, excluding p&p

441282, 7.5 : 1 CR, +0.040" 7 in stock, £195 including rings, pin and clips, excluding p&p

Price is £195 including rings, pin and clips, excluding p&p

Contact : Sean Kelly seankkelly@hotmail.com +44 (0) 7803 669862 for further information

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Added 16th December 2013

Twinport head 500 cc. approx. 1935 (see pics) for exchange to a twinport head 500 cc. from 1927-1931.
All threads are good, no rips.  Please contact Carsten Conrads carco@tr4-rally.com

Head

Head

Head

Head

Head

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The Marston Sunbeam Club & Register Ltd is a company limited by guarantee registered in England and Wales Registration No. 7230550 - Registered office: Lewis Onions Solicitors, Allium House, 36 Water Street, Birmingham B3 1HP

 

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