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2017年12月11日 イイね!

Solex 34 PICT 3 main needle

Solex 34 PICT 3 main needleI've realized that the main needle angular position on Solex 34 PICT 3 carburetor has some sharpened difficulty that has some relations with automatic choke control. As the 3ird party manufactured carb. used Vocar is mounted in my VW 1302 Super Beetle, a principle to adjust the original position 2 and a half turning back from the tightened angular position is not always meet with mine. Probably, former user of this Vocar might have tighten too much in, so the needle valve hole must have been enlarged illegally.
Consequently, the angular position of main needle valve should be decided by my cut & try method repeatedly, very small and keen adjustment is required under this condition, not impossible but available. 470 degree turning back position of mixture control screw is my setting as a matter of fact.
Though the procedure for it relies on my sense and experience, mainly rely on exhaust smell, too much lean mixture produces excessive Hydro-Carbon and too rich Oxidized-Carbon instead. Of course, spark firing timing and timing acceleration construction, both vacuum and centrifugal has much to do with the motor's combustion.
Because have I a struggled experience on Weber 40 DCOM side draft twin carburetor as long as 10 years originally embedded in Peugeot Talbot 205 Rallye, the single carburetor adjustment is not so difficult task for me.
With mechanical Weber side draft twin carburetors, Regular Government Continuity Inspection had been passing instead of Private. Experienced mechanic servicemen should know how difficult it had been on Earth?

I always say to myself and to my son, only experiences make a man. Asking anything to others means being stolen precious and indispensable treasures by the others.
Posted at 2017/12/11 12:45:25 | トラックバック(0) | 日記
2017年12月08日 イイね!

Precious rubber cup parts

Precious rubber cup partsOrdered brake rubber cup parts arrived from Tokyo for my VW Super Beetle 1302 costing 5,292 yen including Tax. Judging from ordinary common sense for these parts, ten times price, however they are unlikely as 45 years production air-cooled Beetle, how come?
I must inquire the rusting phenomena on the brake cylinder inside wall first, though I didn't neglect to change brake fluid every 3 years, occasionally, honing procedure must be done if the wall might have substantial oxidized deficiency.
Considering conscientiously, the cylinder inner surfaces should be processed by means of Chrome plating technology in to like a mirror, don't you think?
Because I touched everything, imagined I some fine omission work before I begin to change rubber cups into new ones.
In order to prevent brake fluid leaking, I do insert a DIY 1 mm thickness round rubber pert between the rubber cup and the bottom of a sliding pusher part, counter-measuring 2-step stance.
Let's see what will happen, reporting later.
Posted at 2017/12/08 18:40:34 | トラックバック(0) | 日記
2017年12月07日 イイね!

Used YS 60 FS

Used YS 60 FSArrived YS 60 FSH motor disappointed me a bit, that was made successfully bid in Yahoo Auction at 2,980 yen without competitors.
There exists no worn away evidence outside probably with very short period of time operation, but the ringed piston has apperent shinny spot at exhaust angular position also at opposite side meaning that the motor had been operated in very critical condition, too lean mixture loosing main needle valve setting. As a common sense, Ringed Piston has enough tolerance between the cylinder wall compared with ABC or AAC, in spite of the advantaged circumstance, the piston has shinny spots around the ring at higher position?
Probably, a former user must be failed in the initial break-in stage and a miserable YS 60 FS motor has been thrown away because of poor performance.
Crank shaft supporting main bearing has uneven ball wear not because of ordinary use but because of operating in the critical condition.
Now, I made up my mind to save this motor and to survive acquiring the original performance as designed by Mr. Yamada.
Removing concave surfaces on the piston wall caused by over-heating handling would be carefully reshaped avoiding unnecessary slipping resistor, piled carbon and sludge would be removed and the main bearing # 6903 would be replaced.
Following the Physical principle these kind of task is not always difficult.
Hoping this weeping and beaten-up motor would fly into the blue sky like a Phoenix in very near future.

Posted at 2017/12/07 17:12:14 | トラックバック(0) | 日記
2017年12月05日 イイね!

OS 40 LA main port

OS 40 LA main portModification has accomplished on OS 40 LA forming the Schnierle main port successfully. The procedures were done on both cylinder sleeve wall and forming gas way inside the case. Keen concentration and special tools such as Carbide cutter were required to carry it out.
Because this modification is experienced on OS 25 LA motor last year, the task on 40 LA was not so difficult one but not so easy.
Later investigation about 40 LA models proved that the end stage production model has main Schnierle port, that has one piece rear cover plate with the needle valve body, not an independent metallic holding stay.
As I have formed the main port with oblique angled gas way to grow plug direction, manufacturer's design of it is horizontal parallel to the piston top surface.
I'm looking forward to compare my modification with originally 3 ported 40 LA model.
Posted at 2017/12/05 20:48:31 | トラックバック(0) | 日記
2017年12月05日 イイね!

Troublesome wheel cylinder

Troublesome wheel cylinderVery slight stuck feeling just before stopping obliged me to investigate the reason, right rear wheel was the criminal. Though a rear wheel nut loosening procedure required some muscle work, I did it without hesitation.
Finding out some break fluid leak there at leading side sliding pusher portion, cleaning was done on the cylinder inner wall and pushing part on both sides.
Any anxiety in break system spoils a fun to drive my VW Super Beetle, so the rubber repair kit was ordered to FLAT 4 VW shop in Tokyo before long. Ordered part might be expensive, small and tiny rounded rubber sealing and covering boots cost as much as 1,000 yen?
Anyway, fully overhauling including fluid replacement would be done while the holidays, the end of this year and a new year vocation.
Posted at 2017/12/05 17:28:35 | トラックバック(0) | 日記

プロフィール

「Solex 34 PICT 3 main needle http://cvw.jp/b/139985/40834251/
何シテル?   12/11 12:45
Kineboh! It's me!
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