Question

Which of the following is not a method to avoid piston slap?

(a) Taper piston

(b) Piston with T-slots

(c) Offset piston

(d) Increase the size of the piston skirt

The question was posed to me in examination.

The above asked question is from Engine Components in division Basic Engine Components of Automotive Engine Design

Answer 1

Correct choice is (d) Increase the size of the piston skirt

To elaborate: The methods of reducing piston slap are the use of a vertical or T-slots, taper piston, cam ground piston, use of special alloys, wire wound pistons, autothermic piston, bimetallic piston and offset piston whereas an increase in the piston skirt does not affect.