valve gap adjustment
As engine is easy to access now I performed a valve gap adjustment
as usual , the bent tool, plus feeler gauges 0,25 and 0,30mm, a torque wrench equipped with special open end (nuts @10N.m), permanent markers, a 36 vase for the crankshaft nut, and an M10 combined wrench
first action was to replace all nuts with new ones from bmw
sequence for cylinder with closed valves in OT, from one to another remember to turn engine always clockwise when looking at engine from the front of the car
i found particularly interesting to proceed this way:
For a given cylinder choose a valve, exhaust or admission both go at 0,25 to 0,30mm gap
place the 0,25 feeler gauge between camshaft and rocker,
Using your less able hand, press the rocker with one finger to ensure gauge trapped and secure
use the bent tool to force the eccentric to contact the valve, apply pressure with a finger of same hand to secure it
With your dominant hand fix the nut, try not to change the setup, not to put pressure on the valve spring
check The gap at the valve end, if 0,25 slides well and 0,30 can’t, that one is good, so paint one mark on the rocker
once all cylinders done, I give two turns to the cranckshaft and I check it again, placing a different color mark on each rocker
i found this way much more reliable to get equivalent results at all valves