After a lunch hour of oil everywhere!
I gave Brit. Motorsport, CA a call (where I got the cam). Dave went and
looked at one of his motors on the shelf and found his cam
had about 1mm of endthrust (Haynes says 0.178mm max.). I went through
my assembly proc. for the cam and lockplate which was correct. I still had
~1.5 - 2mm of endthrust. The cam is identical to my old one (therefore o.k.?).
I did try to carefully fit the old cam to check that one, but the new bearings
won't quite let it slide in and I don't want to force.
Dave seemed to think that so much endthrust wasn't as critical as say the end
thrust on the crank. One thing that I have thought of is fitting the
sprocket on the cam with the lock plate in between, and pushing the sprocket
as far as possible (so the cam nut is all the way down the thread). THEN
fit the cam and do up the lock plate*. Haynes says to check the thrust
without the sprocket in place....but the sprocket does prevent the cam
from moving towards the engine. I can't quite fit the sproket on all the way
because there is nothing to 'push against' when the cam is installed.
Hence the reason I will try the above.
I'll let you all know
Marcus
*tight fit to reach the lockplate bolts between the front plate and sprocket.
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