| ||
| The crankshaft is forged carbon steel, and the crank | |
W | B TYPE | |
| The output end of the shaft has a crankshaft gear, and | |
| balancergearfor | |
| position. |
|
4 4 CONNECTING ROD AND PISTON
The connecting rod is an aluminum alloy diecasting, and its largeandsmalIendsfunctionasbearings.
The piston is an aluminumalloycasting,andcarries two compression rings and oneoil ring.
I
The piston rings are made of special cast iron.
Theprofile of thetopring is barrelfaceandthe second ring has a taperedface.
The oil ringconsists of acutterring anda coil expander for better sealing and less oil consumption.
D TYPE
Fig.
f i g .
TOP RING
SECOND RING
OIL RING
f i g .
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