This time, I would like to digress from CT business to solve a problem with my address V125G (CF46A), which is very active in daily commuting and shopping.

 

Idling became unstable and I thought the insulator was damaged as promised, but when I checked it, there was no damage.
Then I thought it might be a solenoid valve, and when I looked at it, there was no valve rebound.

 

I made a 3D model after taking a CT scan to try, but could not get a good image to confirm the spring.
X-rays are not good for heavy metals such as iron and copper, and electromagnetic coils and magnets are not good for them because they are like lumps of metal.
A spring by itself is OK, but a small mass in a large mass is difficult to visualize.

 

When performing CT imaging, a test scan is taken for positioning.
The fluoroscopic image accompanies the test shot, so I looked at the image at that time.
I noticed something wrong with the red circle section.

 

I disassembled the valve section and found that one coil spring was broken.
This seems to be causing the idling malfunction due to lack of tension.

 

So when I was thinking about replacing the springs, I noticed a parts cleaner nozzle.
I put it in the valve and it fits perfectly.

 

I cut about 2 mm off and assembled it as a clog substitute for the valve.

 

After installation, it has been in use for 2 months with no problems.
Genuine parts cost a little over 4,000 yen. Whether you consider this expensive or inexpensive is up to you.

Try it at your own risk.　　See you soon....