Service Manual
Page 14 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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VALVE TIMING GEAR (DISMANTLING). For attention to the valve timing mechanism gear selector components need not be disturber. Should it be necessary to remove either of the camchain cases, the timing steady plate must be removed to allow the gears to be dismantled. Remove the three large button headed screws (5mm Allen key) and lit off the timing plate, noting that the two dowels will normally remain in the plate.
There is a steel thrust washer on each of the camchain spindles which should be lifted off.
The drive for the valve gear of each cylinder may be dismantled independently. To release the front drive the oil pump gear (or the complete pump assembly, page 12) must first be removed. NOTE:- The oil pump spindle nut is 3/8" U.N.F. R the correct 9/16" A.F. ring spanner is not available, an old 14mm may be used instead.
When the oil pump gear is removed, be sure that the woodruff key on the shaft is also removed, (unless it is firmly held in the keyway) to prevent loss.

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