Service Manual
Page 29 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 gudgeon pin is a sliding fit in both piston and rod and may be removed from either side. The plain wire circlips must be renewed when reassembling and should be fitted with the gap 3-4mm on either side of the extraction slot.
The head gasket is a spring steel ring and need not be renewed every time the engine is dismantled. The steel edge on the ring should be located against the top of the cylinder barrel. No gasket is fitted round the cylinder base, but a smear of silicone RTV sealant should be applied before closing the joints.

The two cylinder heads are identical so should be identified to avoid confusion upon reassembly. The barrels differ only in the position of the cutaway on the cylinder liner; the cutaway on the front cylinder is to the right side when assembled.

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