Kinebohのブログ一覧

In the condition of left side automobile regulation like Japan and UK, minus value on thrust angle is nothing but fatal dangerous while driving in driver sleeping situation. Because, innate tendency to go right side has possibility of face to face collision. No argument is waiting for this critical opinion, because no vehicle driver has some experience including myself on this point. Right side run habit caused by plus thrust angle cannot be eliminated until thrust zero condition would be established even if EPS steering neutral correction should be done. So, the vehicle that lost control by driver's consciousness goes to right into the opposite traffic no matter how effort might be exerted. This fundamental physics mechanism is very seldom to be appear in the field of motor ;magazines. Just, the angle value of thrust angle must be within plus minus 10 minutes is said in the European Safety Bureau, in Japan, no regulation exist even in the periodical automobile inspection test done every 2 years. Scientific law in Physics on the Earth happens without exception no attention is paid or not.

Consequently, my Yaris that had minus thrust angle with 12 minutes angle value has corrected into 7 minutes by moving the left side hinge point forward within fitting tolerance.

Then next step is the right side trailing arm hinge point adjustment to backward.

Yaris HV came to me by chance because my mischievous son throw it away and obtained Freed instead, it a long time for me to grasp such a sophisticated vehicle. As an usual manner, I inspected wheel alignment at first, I felt some discrepancy in it's alignment condition, unstable steering wheel neutral position while straight running. Leading to some ill-thrust setting, scaling was rear camber value at first, and thrust angle for the second procedure, rear total toe vector direction means thrust angle. It's a matter for regret that Yaris 2WD model does not have any adjustment construction for the establishment of wheel alignment at all, solid torsion bar axle does not accept any adjustment. The conclusion after at a loss is insertion of adjusting sim in the flange surfaces at knuckle portion, of course it a stupid manner to do that, but no idea except that. 2.5mm thickness iron washer insertion at 13:30' position resulted too much, so 1.00 mm thickness was calculated as a matter of fact, Bingo! So suddenly, steering became sticky at neutral position meaning Zero thrust angle was established. No external stimulation caused instability on the neutral steering position by the rough road surfaces or inclination. This specific steering feeling cannot be felt and understood until he or she has an actual situation. Even 1.00 mm thickness insertion between the knuckle surfaces, tightening bolts have discrepancy caused by inclination, periodical inspection and tightening procedure is required for the safety. Recent sophisticated vehicles has no room to adjust by the drivers or mechanics because of fully electric controlled system, the only way to do that is to make it narrower, tolerance, allowable assembly errors. Yes, establishment of Zero thrust angle is the most effective that driver can feel and enjoy motor life.

In order to measure camber value, total toe value and vector direction, mechanical pendulum device with 1719.75mm radius and LASER pointer level were constructed by DIY respectively.

3 days interval changes round shape gradually, never stops as it does, flowers lose their best without exception. Impermanence is usual.

As our seasoned manner and habit, we celebrate the specific Autumn day with enjoying full moon high up in the Noct sky, so to speak Middle Autumn Moon. Also, sweet special Japanese cake, Tsukimi-Dango.
Shooting Datum:
Nikon Z8, 400mm+1.4X convertor, Slik Master EV3

Now is the time to love 3 items together, cluster amaryllis, cosmos and persimmon. 1 hour driving into the mountain to Sasayama along Tamba road takes me to the locations. This is an usual way for visiting ancestors' graves done on every month. Change of climate from hot to cold happens relatively quickly this year.

'71 VW air-cooled Super Beetle 1302 required deeper investigation again. Very strange and quire combustion control was applied following after '70 Exhaust gas control system, lower combustion firing timing, slower than TDC at idle speed and gradual decrease to idle speed applying dash-pod. Especially, the vacuum advancer with opposing effect is notable, now such a parts is not available. In the normal rotating range, vacuum advancer take effect very little like nothing just only for exhaust gas control at idle speed. Consequently, new idea is required if a normal and ordinary vacuum advancer is applied on this system. Also 009 without vacuum advancer is tested in addition. Over heating tendency was observed if 009 is set in position though mid range acceleration characteristics improves. So, an ordinary distributor with an normal vacuum advancer was invited with BTDC 7.5 degree on AD motor as a matter of fact.

As for next work on 11AD, turn signal lever module maintenance is waiting, now fully disassembled a part.