Engines Htb-Hcb-Hsb-Hbp-Bh With Ball Bearing On Pto - Tecumseh SPECTRA 37 Service And Repair Manual

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b) ENGINES HTB-HCB-HSB-HBP-BH WITH BALL
BEARING ON PTO
These engines are fitted with a ball race at the PTO end
of the crankshaft and removal is as follows:
Remove crankshaft key and any dirt or rust present on
the shaft.
On early engines remove oil seal (Fig 11) and with thin
nose pliers, remove bearing circlip.
BH engines - the side plate can be removed complete
with bearing and seal.
All types - remove crankcase cover bolts and withdraw
cover.
With PTO end uppermost remove gasket, dowel pins, and
oil pump (vertical shaft engines), camshaft and tappets,
(mark tappets for refitting in same position).
Remove big end nuts, big end cap and dipper (H engines),
remove carbon deposits from cylinder bore and withdraw
piston and conrod.
Remove crankshaft, clean all components and check for
wear or damage. (Fig 12 &13).
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Fig. 11
Fig. 12
Fig. 13
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