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MTD 483 Series User Manual

MTD 483 Series
92 pages
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CRANKSHAFT, PISTON AND CONNECTING ROD
68
NOTE: The valve tappet should be kept riding
against their original lobes. Once broken in,
switching the tappets to run on different cam
lobes will cause rapid tappet and cam wear.
14. Remove the valve tappets. See Figure 10.3.
15. Remove the connecting rod cap using a 10mm
wrench.
See Figure 10.4.
NOTE: Rotating the crank shaft after the con-
necting rod bolts are removed will help to sepa-
rate the connecting rod from the cap.
16. Push the piston out of the cylinder.
NOTE: Sometimes a ridge of carbon builds up
where the cylinder meets the head. If this hap
-
pens, the piston can be removed from inside of
the cylinder block.
17. Remove one of the piston pin retaining rings.
See Figure 10.5.
18. Remove the piston pin.
NOTE: If the piston and connecting rod were
separated, reconnect them so that the arrow on
the piston head points to the oil hole in the con
-
necting rod. See Figure 10.6.
NOTE: The piston, rings and connecting rod are
currently not available as service parts. If they
are damaged or worn, the engine must be short
blocked.
Figure 10.3
Valve tappets
Figure 10.4
Remove the connecting rod bolts
Figure 10.5
piston pin retainers
Remove one of the
Figure 10.6
Oil hole
Arrow

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MTD 483 Series Specifications

General IconGeneral
BrandMTD
Model483 Series
CategoryEngine
LanguageEnglish

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