EY35, EY40 - Small Engine Discount
EY35, EY40 - Small Engine Discount
EY35, EY40 - Small Engine Discount
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4-2 MAIN BEARING COVER<br />
B<br />
The main bearing cover made of aluminum die casting is built onto the output shaft side of the crankcase so that the inside<br />
of the engine can readily be checked by simply removing the cover. It is provided with a flange and boss for directly mounting<br />
machines, such as generators and pumps.<br />
Two oil gauges also serving as oil filler caps can be mounted. .(See Fig. 2 and Fig. 3 .)<br />
RING for CENTERING<br />
OIL GAUGE<br />
Fig. 2 Fig. 3<br />
4-3 CRANKSHAFT<br />
The crankshaft is forged of carbon steel, and the crankpin is<br />
induction-hardened. It has a crank gear pressure-fitted on<br />
-<br />
the output end.<br />
- (See Fig. 4.)<br />
INDUCTION HARDENING<br />
(PORTION of CRANKPIN)<br />
CRANK GEAR (PRESSURE-FIT)<br />
Fig. 4<br />
4-4 CONNECTING ROD and PISTON<br />
The connecting rod is forged of aluminum alloy, which itself<br />
serves as bearings at both the large and small ends. The<br />
large end has a built-in oil scraper for splashng the lubricating<br />
oil.<br />
The piston is cast of aluminum alloy, and has grooves for<br />
receiving two compression rings and one oil ring.<br />
(See Fig. 5.)<br />
SECOND RING<br />
Fig. 5<br />
-5-
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