The toilet tank seems to be leaking.
It is an apartment over 20 years old, so it can't be helped.
We have contacted the landlord and it will take a while.
So, since the symptoms of water leakage are getting worse, we will take it apart and check the current status.

The cause was simple: a piece of resin was trapped in the piston valve.

Once the resin pieces were removed, the leak stopped.
I've replaced the pistons and O-rings, so the repair is almost complete.
Since it means replacing the entire set of items inside, let the contractor do the rest.

This will finally eliminate the water noise and make it less bothersome. See you soon...

We did a break-in run up to 500Km.
It can only turn up to 4000 rpm or less, so it can only go about 100 km/h in 6th gear.
I couldn't drive on the highway, so I wondered what was going on.
The highway between Hinaku and Tsunagi in the direction of Ashikita has not yet been opened and is now a free section.
Light trucks, large trucks, etc. are also running, so the RPMs are just right.
The distance of the section is about 30 km, so we made several round trips over two days to gain distance.

Hinaku_Entrance

Tsunaki_Exit

There are places along the way where you can see the ocean, so it is a good place to relax and flow.

Near Tanoura

We took a break at a Family Mart near the I.C. on the Tsunagi side.

I wonder if this highway is selling a way station.

At the end of the Hinaku IC, there is a park with a view of the sea, where we took a break.

We have reached our target distance and are heading home.

Tsunaki_entrance

Hinaku_Exit

Finally, after 500Km of driving, I can turn it up to 6000rpm,
This eliminated the problem in normal use and greatly reduced stress.
I will run for 1000Km next time. See you soon....

I was in bad shape because the road I was running on was unusable after the Kumamoto earthquake in 2016.
The car was overhauled for inspection.

The valve guide lip was worn, causing the oil to drop.
I was prepared for this, but I am shocked.
I ordered the valve guide in June while it was out of stock due to a series of other bad things.
Delivery was in October.

A report after the overhaul will follow in due course. See you soon...

Hello, RPV.

How is everyone doing? Risshun has passed, but the cold weather continues.

The plum trees in my garden are still in bud. It seems that the early ones are already in bloom.

I am looking forward to the blooming.

Thanks to your support, we have been busy with many orders for our business. I couldn't resist and went fishing on Saturday night.

The winter pressure pattern was cold, the wind was strong, and there were no fish to be caught, making it an unbelievable fishing situation.

Still, I gutted it out and caught three horse mackerels. I am very emotional because of all the hard work I put in.

Next time I will go when it is a little warmer. It looks like the cold weather will continue. I hope you all don't catch a cold.

Happy New Year, RPV.

Thank you very much for your support during the past year. We look forward to working with you again this year.

Last year was a year of earthquakes and other disasters! I hope this year will be uneventful and safe.

By the way, at the end of last year we installed the latest software for analysis.

This is a full option module for VG Studio Max 3.0.

Defect/inclusion analysis, coordinate measurement, design value/measured value comparison, and wall thickness analysis are available.

The ability to read and compare CAD data, etc., is more advanced than ever before for checking product workmanship.

If you have an X-ray CT scanner, you can do the CT scanning, and we can do the 3D analysis,

We can perform these 3D analyses alone, so please feel free to contact us.

So, everyone, let's all do our best to have a good year.

Hello, RPV. It has been a while.

Thanks to your support, we have been very busy and have not had the time to do much for a while now. We apologize for the delay in updating this blog.m(>o<)m

From the 24th to the 26th of last month, we exhibited at the Pacifico Yokohama die-casting exhibition. After that, I was so busy with inquiries, business trip visits, and daily operations that I had no time at all~.

The first day was sleeting weather, and it was quite cold for those of us who live in the southern country of Kumamoto.

This time, the number of visitors from abroad seemed to be especially large. I could really feel the enthusiasm for manufacturing in their own countries! We should learn from their enthusiasm!(--;)

We also appreciate that many of our business partners visited our booth. Thank you again. We also apologize for not having announced the event on our website and blog in advance. We apologize again. We plan to exhibit again next year in the Kanto area, and we will try to notify you in advance when we do so.

Well, this year is almost over. This year was quite a blessed year for us in terms of work, although there were many things that happened, including the Kumamoto earthquake. The image above is of the 18-meter high tower at Kumamoto Castle. It was quite a shock to see it in person and brings back memories of that time. With the support of many people, this turret and Kumamoto Castle will eventually be restored to its original heroic appearance.

I would also like to make a fresh start next year and make it a year of leaps and bounds, work and all. We will open for business on the 5th of next year.

Thank you very much for your support this past year. We look forward to working with you again next year.

I wish you all a Happy New Year!(^_^)/~RPV

Hello, RPV.

This time I am trying to repair a tank cap fuel leak on an old Yamaha 2-stroke off-road vehicle. I did this a while ago and was able to fix the fuel leak without it recurring, so I wrote this article about it. I think it is a common part with other models of vehicles, so I hope it will be helpful for those who have one.

It is hard to tell from the picture, but there are traces of gasoline seepage from the tank cap key cylinder area. When driving after filling up the tank, there is a noticeable seepage and gasoline smell for a while. I thought about replacing the cap itself, but it would require an additional key dedicated to the tank, and it would be depressing to wonder which is the main key when riding, so I decided to identify the cause of the leak in this cap and repair it with minimal parts replacement utilizing this cap and key cylinder.

First, let's take a look at the tank cap through an X-ray. The O-ring can be seen in the blue circle. It seems that the O-ring is just a seal between the tank chamber and the outside air.

The O-ring only part is not supplied by the manufacturer and the price is a little over 5,000 yen for the cap assembly. I will try to replace the O-ring only.

Hello, RPV.

Well, this blog has completely turned into a fishing blog!

So, we went back to the willow tree. We arrived there around 6 pm.

The tide was high that day, and the current was very fast, making fishing difficult.

As for the catch, we managed to get some horse mackerel, mackerel, and magochi, though not as many as last time. According to the locals, small-sized horse mackerels can be used as sushi. My friend tried it and it was quite tasty.

So we managed to save face and return home. Next time, if you catch something big (can we catch it?), I'll report back. I'll report back (^^;);

Hello, RPV.

The heat wave has somehow passed, and the mornings and evenings have become cooler and somewhat more comfortable, but how are you all doing?

We have been busy for some time, but things have finally calmed down recently. However, we are expecting to be busy again next week, as we have received a very nice offer from one of our business partners.

Having had a taste of fishing during the busy season, we were convinced that there were loaches under the willow trees without any evidence whatsoever, and we went to Amakusa again.

I had to receive and ship packages to and from clients, and it was still too hot during the daytime, so I went night fishing at my usual spot. I have been doing night fishing so much that I have become a night fishing specialist.;

We left home at 6:00 pm and arrived at the site around 8:30 pm. When we arrived there, our master was already fishing and said, "We're catching mackerel! We must catch them soon! We rushed to get ready and started fishing. The first cast, we didn't have to wait 10 seconds before the float sank diagonally and we caught a mackerel of a little over 25 cm. After that, I caught about 20 mackerel in about an hour, including some horse mackerels.

The magochi in the picture was one of three caught by a friend who accompanied me on the trip using a lure. Thank you very much. After returning home, I had the horse mackerel and magochi as sashimi, and the mackerel as fried tatsuta. I will go back next week and report if I catch any more fish. If I don't report, it means I didn't catch any fish.

So I went again. My friend and I managed to slip out at night after a break from work.

It was Thursday, September 15, the night of the fifteenth. When I arrived at the site around 8:00 a.m., an elderly local couple, who had always given me their place and taken care of me, told me that they had caught a pike, but it was quite difficult for me, a beginner, to catch this fish. I have to read the subtle movements of the float and match it well, but I have no idea how to do it.

We meekly targeted horse mackerels with sabiki traps as usual. But we only caught a few bean horse mackerels, and I thought to myself, "Well, I guess that's not so bad for our level of fishing. We were half-heartedly patting ourselves on the back and thinking, "Deep-frying them would be a great snack with beer," when the couple who had just come in took pity on us and gave us six pike. Thank you so much for everything you do for us!

Below are the additions.

So, out of nowhere, I suddenly felt motivated or obligated to "catch one too! I changed from Sabiki to lure and casted many times, and caught a pike. I was impressed. But that was the first and last one I caught with the lure that day. I was tired of fishing with lures, so I changed to bait fishing and waited for a fish. Then I caught two magochi in a row. I was satisfied with my fishing.;

In the meantime, a friend of mine got a flounder with a lure. After all, you can't beat a good angler, can you?

So, I was reasonably satisfied with my catch for the day. In fact, I was extremely grateful to have received six pike. The couple recommended to dry them overnight before eating them. And so we went back for more! I will let you know the report soon~.

Hello, RPV. I would like to express my deepest sympathies for the lingering summer heat.

It has been a while. How is everyone doing in this hot weather?

I am sure that many of you are hard at work after the Bon vacation.

We have been inundated with job requests recently and managed to finish them over the Obon vacation. We have made arrangements for our clients to receive the results of their requests after the vacations, so we will be able to concentrate on our work after the vacations. We hope that we can be of some help to high-quality manufacturing in Japan (^^;);

Well, as a quick note, I went night fishing in Amakusa with a friend of mine the other day, as a test drive for some minor maintenance work I had done on my car. It was very humid.

I was glad to have caught a flounder in the humid, damp weather. At first I was fishing for horse mackerels, but I was getting tired of it. Usually we can catch good sized horse mackerels, but due to the earthquake and rain, we haven't been able to catch many this year. The effect of the rain was especially large, and until the other day, the seawater was almost muddy. The other day, the seawater was so muddy that it was almost impossible to catch any fish. However, it seems that ajigo are being caught quite well in Amakusa these days.

After this, my friend caught three magochi and gave me one of them. Of course, I enjoyed it as sashimi. The fried horse mackerel was also delicious.

So, it has been a long time since I have been away from home. By the way, when I drive in Kumamoto, there are still some parts of the road that are in a terrible state of pain. It was getting painful to drive with my old car, so I replaced the shock absorbers and sway bar bushings. I went there to test them. Impressions are that the ride quality has naturally improved, and the steering operation has improved with a more comfortable feeling when less overweight is applied, such as when changing lanes.

So I scanned the contents of this shock absorber with X-ray CT. Since the video has been well received recently, I made a video of it. It is different from the one in the picture in the image, but if you are interested, please watch it.

It may be easy to understand the structure of a shock absorber, which is composed of several types of components.

Holly, I may still have some time to spare until this week, so I may go fishing again... I'm getting quite a taste of it. The picture is a sea bream that an acquaintance caught at the same place last month. The frame of the ball net is 60cm, so it seems to be more than 2kg. I would like to catch something like this once. Well, it will be impossible for me.;

Another acquaintance of mine caught three bluefin squid, which was amazing. He took pity on me for not catching anything and gave me a precious one. Thank you very much. I also enjoyed this one as sashimi. m(*- -*)mI will report if I catch another one. If I don't report it, it means I didn't catch it.