Service Manual
Page 36 of 50

*NOTE* This service manual is for a NON EN10 modified engine. Whilst most of the information is relevent, there are some critical differences.
For more information on EN10 modified engines, please contact
Mick Broom at Broom Development Engineering on +44 (0)1327 353023

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The primary drive gear contains the starter sprag clutch which is held in place by a large circlip. The sprag clutch may be removed by gently levering against its back face with a pair of levers, such as small Allen keys. Behind the sprag clutch is a steel thrust washer.
Should the primary drive gear be tight on its splines, use a pulley around the outer flange to extract it. Unless the crankshaft is to be removed it is not normally necessary to remove this gear.
For access to the starter motor on early machines, it is necessary to release the starter bearing plate to reach the starter fixing screws. Later models have a cutout in the top front edge of the starter bearing plate, and it is recommended that this modification is carried out on earlier machines when convenient.
All that is required is to file a small depression in the top edge in line with the top starter motor screw so that the two starter screws may be removed without disturbing the bearing plate.

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