Camshaft Timing Gears Removal; Timing Gear Inspection - TGB EST 1000 Service Manual

5-2. ENGINE TOP END
NOTE: Install the new gasket of chain
tensioner.
NOTICE: Improper adjustment of the timing
chain will lead to severe engine damage.
▪ Fit the spring on one side into the slot of the
plug and on the other side into the plunger.
NOTE: Turn spring only clockwise in order to fit
the spring end into the notch of the plunger and
to avoid loosening the plunger during spring
installation. Do not reload the spring.
NOTE: Do not forget to replace the O-ring on
chain tensioner plug.
▪ Then compress the spring and screw the plug
in.
NOTE: To avoid overstressed timing chain, the
plug must engage into threads within the first
full turn.
▪ Install all other removed parts.
▪ Finally, tighten the plug.
CAMSHAFT TIMING GEARS

Camshaft Timing Gears Removal

▪ Remove the cylinder head cover.
▪ Turn crankshaft to TDC ignition of the
respective cylinder and lock magneto
flywheel.
▪ Unscrew timing chain tensioner.
▪ Remove timing gear retaining bolts.
▪ Remove the timing gear.
NOTE: Secure timing chain with a piece of wire.

Timing gear Inspection

▪ Check timing gear for wear or deterioration.
▪ If gear worn or damaged, replace it as a set
(camshaft timing and timing chain).
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