PRO TECHNICIAN

Inspection

Inspect Piston and Piston Ring

Thickness gauge
New piston ring
Clearance of piston ring groove No.1
Clearance of piston ring groove No.2
 
1.
Clearance of piston ring groove
Using a thickness gauge, measure the clearance between the piston ring and the piston ring groove No.1, No.2.
 
HINT:
Too large clearance increases oil consumption. It is also a cause of abnormal noise.
Too small clearance could cause damage to the piston ring and/or the inner walls of the cylinder due to thermal expansion.

(12)