73
Fig. 8
Fig. 9
Fig. 10
NOTE - Early type valves were secured by a pin fitted
through a hole in the valve stem and secured by the
spring cap. This type can be removed by lifting the spring
and removing the pin with a pair of long nosed pliers
(Fig 8).
4. DISASSEMBLING CYLINDER, PISTON
AND RINGS
For removal and checking of piston and rings, drain oil
from crankcase by removing plugs ‘H’ for horizontal shaft
engine and plug ‘V’ for vertical shaft (Fig 9).
At this point check crankshaft for main bearing wear and,
according to engine type, proceed as follows:
a) ENGINES LAV-BV-HS BVS VANTAGE PRISMA
SYNERGY SPECTRA, FUTURA
Remove key from crankshaft (PTO end) and in order to
prevent damage to bearing surface during removal,
thoroughly clean shaft end and remove crankcase cover.
Oil seal damage may be prevented by the use of special
tool 670261 (Fig 10-a).
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For Discount Tecumseh Engine Parts Call 606-678-9623 or 606-561-4983
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