Cylinder, Piston

ENGINE TOP END 5-33

• Remove the top and second rings with piston ring pliers.

Special Tool - Piston Ring Pliers: 57001-115

• If the special tool is not available, carefully spread the ring opening with your thumbs and then push up on the opposite side of the ring [A] to remove it.

• Remove the 3-piece oil ring with your thumbs in the same manner.

Piston Installation

• Apply molybdenum disulfide oil to the oil ring expanders, oil ring steel rails, top rings, second rings and piston pins.

• Install the oil ring expander [A] in the piston oil ring groove so that the expander ends [B] butt together, never overlap.

• Install the upper and lower steel rails. There is no UP or Down to the rails. They can be installed either way.

• Do not mix up the top ring and second ring.

• Install the top ring [A] and the second ring [B] so that the “N” mark [C] faces up.

• Position each piston ring so that the openings in the top
ring and oil ring steel rails are facing forwards, and the
second ring and oil ring expander openings face the rear.
The openings of the oil ring steel rails must be about 30°
∼ 40° of angle from the opening of the top ring.

Top Ring

Second Ring

Oil Ring Steel Rails

Oil Ring Expander

[E] Circle

CAUTION

Do not reuse snap rings, as removal weakens and deforms them. They could fall out and score the cylinder wall.

• Install the piston so that the circle mark on the top of the piston come to front side of the engine.

• When installing a piston pin snap ring, compress it only enough to install it and no more.

Дата добавления: 2014-12-23