So it was valve shim change time to get the tolerances back in line.....so this time a very accurate measure
RH Exhaust measured 0.33mm and LH Exhaust 0.34 (tolerance is 0.25mm-0.33mm)
RH Inlet measured 0.07mm and LH Inlet 0.11 (tolerance is 0.03mm-0.11mm)
Cam Chain tie wrapped to Cam Shaft sprockets
Cam locking bolt inserted to lock engine at TDC
Paint marked sprocket locations with white paint marker dots
Removed Cam Chain "Bow"
Removed Cam Chain Tensioner (22mm Head bolt and then tensioner itself) to give some slack in chain
Moved inlet and exhaust camshafts out of camshaft support bracket and removed top and bottom halves of bracket
Removed valve lifter - I use a magnet as it makes it nice an easy , then removed the shims from inside the lifters
Measured the shims and the inlet were 2.7mm and the exhaust 2.65mm
So I will put the 2.7mm inlet shims into the exhaust lifters , that will close them up by 0.05 mm and get them to 0.29mm and 0.28mm respectively so both nicely in specification
I then needed to order one 2.75mm and one additional 2.7mm shim to use in the inlet lifters to close them up by 0.05mm and get them to 0.06mm and 0.07mm
Rang BMW and no 2.75mm shims in the UK , German stock so a week away :-(
However Lind Motorrad in Norwich are showing stock of three . A quick call and spoke to Colin who went and checked and they did have them
After paying my £12 bill they are coming to me First Class post so Royal Mail dependant I should get them in the morning - many thanks to Lind Motorrad for sorting it out
After all that fun I had a couple of hours out to deliver my seat to Les at Saddlecraft in South Shields . ETA for getting it back is early February
A trip to the Powder coaters in the morning and then continue with the cleaning /checking/refurbishing of parts