Arbeit heute

Frontal camber on NCP10 TOYOTA Vitz was corrected yesterday into minus 35　minutes angle value on both sides finally, as a result right side running habitual tendency has disappeared but historic strange rasping sound came out again that must be caused by needle roller mechanical construction of DOJ in the right side drive shaft. The original problem might exist in any distortion of the hub impacted into knuckle or in the wheel tracking problem. Trial attempt of toe-in adjustment would solve this strange problem, remember here that just a replacement of wheels right and left eliminated the noise last time.
Judging from frontal tire outer surface see through method to know the thrust angle from an anterior portion, slight minus angle was observed, this precise adjustment by rear thrust correction would be performed after the noise problem-solving.

Hinter trailing arm inner bush condition would be checked after upper work, probably they must be broken by tearing away between inner and out lace rubber portion. If it's to the point, all the trailing arm bushes replacement work would be required without any hesitation, outer rubber mass bushes had been prepared, on the other hand new ordering for inner bushes 4 in number must be ordered to Flat 4 in Kyoto. Disassembling trailing arms must require special method because of torsion bar spring construction instead of ordinal coil springs. Heavy especially on final and deeper angle, muddy and sticky steering reaction would be far improved after all.

As for Minolta Macro Rokkor 50/3,5 that had been modified to adopt onto EOS Canon bayonet mount, infinity position was moved to the most retruded position to focus much more further point. Basically, old Minolta SLR flange back is designed at 43,5mm and the thickness of EOS bayonet is 1,5mm, so the infinity focusing point is put 2,0mm anteriorly counting the difference from EOS 44,0mm. Moving stopping point at infinity position on this macro lens is relatively easy, just removing rubber focusing ring and pealing away holding plastic tape under the rubber ring. The discrepancy was almost eliminated to obtain the focusing at infinity position if the iris is closed at f-5,6 with compensation posteriorly about 1,7mm. Though focusing at infinity at full aperture is not established, this adjustment is enough for a specific close-up purpose. This modified Rokkor 50/3,5 would be an intimate equipment from now carrying with me all the time.