When the plane under the Isuzu Engine is aligned with the direction under the blade, the ammonium cutting should be stopped. At this time, press down the small end of the connecting rod to make the Isuzu Engine take off the ammonium knife to avoid corners and flares.

When the diameter of the reamer remains unchanged, re-hinging the opposite direction of the Isuzu Engine cluster once to prevent the appearance of cones.

In ammonium cutting, the piston pin should be used continuously for trial fitting to prevent the hinge from becoming larger. When the hinge is cut to the point where the piston pin can be pushed into the Isuzu Engine by the palm of the hand, the hinge should be stopped.

At this time, the piston pin should be pressed into the Isuzu Engine or padded with a hammer, and the connecting rod should be repeatedly pulled on the bench vise, and then the piston pin should be pressed out to observe the contact marks of the Isuzu Engine.

Scrape and repair according to the contact marks and tightness. When scraping and repairing, follow the principle of "from the inside out, scrape heavy and leave light, scrape large and leave small".

When scraping and repairing, the piston pin can be pushed into the Isuzu Engine with the palm of the hand, and there is a slight resistance, and the tightness is appropriate. The contact area of ​​Bare Engine should be evenly distributed, with the same weight, and the contact area should not be less than 75%.