I can now close this out. The problem started again with the onset of colder damp weather, i.e. the starter pinion could be heard spinning against the flywheel but the pinion didn't engage the ring gear to turn the engine. I removed the starter and for quickness replaced with a new one and everything is ok. Later, on investigating the old starter I found the grease between the pinion and the pinion shaft had practically solidified preventing the pinion from moving along the shaft. I stripped and cleaned it and re-greased and I now have a good spare. To get to the starter I removed the battery negative connnection, air cleaner, throttle body, fuel injectors (with fuel line and fuel rail attached) and inlet manifold, and various electrical connectors and air hoses. I also removed the top 2 mounting bolts and loosened the bottom mounting bolt of the alternator and pulled it forward to get access to the top and bottom left hand bolts of the manifold. With hindsight it would have been better to remove the alternator - the drive belt becomes slack and can be slipped off when the alternator is in the forward position. It would not have been necessary to cut the belt as instructed in the Haynes manual. On re-assembly I needed to use a pry bar between the alternator mounting bracket and the engine mounting to overcome the tension on the drive belt. I also found it necessary to lightly grease the injector collars to ease them back into the bores in the cylinder head
This was quite a lengthy job to get to the starter motor but on this car there is no other way.
Edited by IKM on 15/10/2013 at 15:09
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