Service Manual
Page 15 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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To remove the sprocket-gear for either cylinder the chain should first be released at the cylinder head end (pages 21-22) with the appropriate piston TDC on the firing stroke, (check the marks on the alternator).

The spindle on which the sprocket near rotates is a push fit in the crankcase and should be pulled out to release the gear.
 

When the spindle is removed the thrust washer between the gear and the crankcase should be collected.
When the sprocket-gear and chain are free, the chain adjuster guide pin may be removed to release the guide, which should be pulled out through the camchain case.
Should any of the spindles be a tight fit in the crankcase they may be removed using a slide hammer; the end of each spindle is tapped 4mm for this purpose.  

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