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Driving BC7 SUBARU Legacy LSi US model early this morning realized I the factor that affects on steering response in curving scenery, it is the center of gravity. Fuel tank condition 1/3 to full made completely different transient on steering response. I've reconfirmed the Natural Science Law affects on the same as a fixed wing airplane. So we must pay attention to the provision of experiment and measurement conditions prior to the enforcement. The phenomena differs depending on the mounting position of fuel tanks, at frontal bulk head for VW air-cooled rear motor Beetle and frontal motor with rear fuel tank designs. Probably the position of gravity in combination with fuel tank must affect on axle designing and compliance setting in dynamic balance.
To know this kind of phenomena scientifically, various devices are required, accelerometer, vibration meter and Gyro, etc. they are exactly the same equipments that manufacturer's have in Research and Development department?

There are many articles with various opinions for wheel alignment procedures in Web site and most of all starts from rear wheel inclination adjustment, but I make it a rule to begin with frontal axle alignment with good reasons.

By twisting front main bar, set up the setback angular value as to Zero degree.

Next step, set up front camber inclination as to the same value on both side at standard degree under the condition of driver's weight on a driver's seat. Frontal hub outer points on both sides would be the reliable key position to align further measurement and adjustment, so the camber value, vertical wheel inclinations should be exactly the same.

Adjust the total toe value at the decided standard keeping the same length from the lack end position to knuckle ball one on both side, steering centricity should be ignored on this stage. In order to establish the same full turning angle, this procedure is very important, because the steering stoppers are equipped in the rack and rack case construction.

Prior to the rear axle adjustment, checking wheel bases, lateral offset and swung rear end is inevitable. They are the very important matters if precise scaling and adjustment are desired.

Rear camber should be adjusted under the same condition as frontal adjustment procedure, total toe at decided value and thrust angle to zero degree should be obtained under careful measurements and adjustments promptly.

As a final adjustment step, record the steering position at the position of 12 o'clock of steering column to reproduce the frontal toe direction, it's so to speak frontal thrust angle against rear hub positions on both side.

Then the rear thrust angle would be carefully and repeatedly adjusted till obtained pure rectangular 4 wheel positions keeping precise cares for total toe value. The steering centricity would be adjusted as the final step compromising minimum error on the rack end positions difference on both sides.

We must remember unignorable effects by several physical properties of butyl rubber, deforming, movable, permanent distortion, internally contained force and troublesome hysteresis. Also the backlashes in the supporting bearings and it's sealed lubricant grease.

The passenger's automobiles are so manufactured as to go more safer direction by self-aligning mechanism by frontal caster, SAI and scrub setting inviting self-steer effect. According to one of my experiment, self-steer effects plays the opposite steering performance after the clicking point speed range around 60km/h, so the thrust angle adjustment must be done below the clicking speed.
In another words, the reversing phenomena on steering reaction habit at around 60km/h makes it difficult to define the direction of the habitual tendency for an ordinal person, sometimes for professional engineers, probably very few of them know this fact.

The tire spot deformation proceeds while the upper procedures are undergoing calling measured value errors, so the tires should be fully expired as to 3,0kg/cm2. Repeatable datum could not obtained for a long time until this treatment have done on every opportunity. The accuracy of the datum had been far increased after that.
As mentioned above, an automobile goes forward if precise adjustments were not done(most of the cases), then what will happen after the critical adjustment, does any difference would exist? My answer is affirmative!

Many a trifle was obtained on the way of experimental researches on wheel alignment measuring and adjusting as for my own treasures, now stacked trifles for a period of time are not a trifle thing for me any more, nothing but great, so I believe in.

There exist the collapse of the bubble in emerging economies of Asian countries with big population behind the instability of European finance, so informed by NHK news broad casting this morning.
I'm afraid of the World Crisis again that was the trigger of WW2.

I spent my off time for maintaining equipment in my new laboratory all day long, just tired and exhausted. I found out the difficulty to keep the ultimate performances in the mechanical movement especially in the function of diaphragm valve to control water pressure at adequate rate, as a common sense, some crystal water contaminants clogged in the way of small hole as pressure controlling balancing orifice. This phenomena closing the small water way causes a malfunctions, 24 years using period of time is enough to do that.
This kind of constructive design of diaphragm valve is not difficult for me to adjust upper and lower spring strength for pressure balancing, because I have been trained to do this in another field, fuel pressure controlling in 2 cycle small motor.
Also, solenoid valve has the same tendency to be influenced by the inconvenient solid material. But remember that some re-adjusting pressure control diaphragm valve spring strength should be required again, because an acquired healthy opened water way would increase the line pressure naturally.
The time has come to maintain all of equipment I'm keeping in my laboratory step by step and one by one, so my off time would be spent for the purpose for the time being.

I have determined that I would never propose my opinion about the alternation of generations between I and my son, though there exist critical difference of standing point of view. My way of perception in general practice is from academic based one as a researcher in Prosthodontic field, on the other hand his is from a general practitioner in our region. Probably, min is out of focus and his is to the point.
I realized again that I cannot make themselves understood however logically the truth and the fact might be introduced by me with desperate efforts.
So, I close my mouth like a oyster for the time being.
Things worthy would be thrown away soon, that had been obtained by my crystals of blood and sweat for 24 years of period of time, just as far as some lonely heart.

Trifle springs balance adjustment and replacing P4 O shape butyl rubber parts thoroughly solved the problem on a cutting turbine equipment!
And valve pushing adjuster in three way syringe could eliminate water piling with success.
Then only coking procedure to shut out odd smell from the floor beneath would be done from now.