Service Manual
Page 22 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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Should any of the three remaining bearing housings seem difficult to remove, tighten the two small jacking screws to lift off the housing, (2.5mm Allen key). Take care when removing one, camshaft that the chain does not slip around the sprocket of the other; it may be helpful to release the screw holding the chain adjuster (6mm Allen key). If both sprockets are removed take care that the chain does not drop down into the camchain case.
When the bearing housing and the camshaft timing tool (8016) are removed, the camshaft may be withdrawn through the sprocket assembly without disturbing the timing. A loop of wire or string through the sprocket assembly will hold the chain in place on the sprocket while the shims are changed.
Should the camshaft be difficult to remove it is possible to take off the sprocket retaining plate and sprocket, allowing the sprocket carrier to be pulled off or prised away from the camshaft. Do not lever against the sealing face of the cover but against the back surface which is supported by the cylinder head. Instead, if a small pullet is available, the three tapped holes in the sprocket carrier may be used to dismantle the assembly; the holes are tapped M5. The cam follower buckets may be removed with a small magnet or a valve-grinding sucker.
Lift out the shim and read off its thickness. The number marked is the thickness in hundredths of a millimetre; should the number be illegible a vernier caliper or micrometer should be used. Fit a thicker or thinner shim as required and replace the follower, camshaft and bearing housing loosely to allow a check to be made on the clearance.

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