Wisconsin VH4D Dokumentacja Pobierz pdf (Strona 23)

Fig. 19

CYLINDER HEAD

The cylinder head must be removed if it is necessary

to regrind valves, or to work on the piston, rings or

connecting rods. All of the cylinder head screws are

plainly in view and can be easily removed. Screws of

different lengths are used but these can be properly

reassembled according to the various lengths of

cylinder head bosses.

In reassembly; remove all carbon and lead deposits

from combustion chamber. It is recommended that new

cylinder head gaskets be used as the old gaskets will

be compressed and hard and may not seal properly.

Use a mixture of graphite and oil on the cylinder head

screws to prevent them from rusting tight against the

cylinder block. Tighten cylinder head screws to 24

ft. Ibs. torque in the sequence shown in Fig. 21.

After complete assembly and engine is run in, re-

torque head screws.

F ig. 20

ing the flywheel shroud to the lower cylinder shrouds

and cylinder heat deflectors, then remove the screws

holding the flywheel shroud to gear cover.

On power units, remove the front end panel together

with flywheel shroud. Remove the rear end panel

complete with fuel tank. Balance of shrouding can

now be readily removed.

In Reassembly; use the thin head capscrews~ for

mounting the flywheel shroud, in the two holes close

to the horizontal centerline. This is for stntor clear-

ance on engines with flywheel alternator.

FUEL TANK

If a side mount fuel tank is used, disconnect fuel

line and remove tank assembly as illustrated in

Fig. 20.

CARBURETOR AND MANIFOLD

The carburetor and manifold can be removed as a

complete unit. In reassemhly; tighten the manifold

nuts to |8 ft. lbs. torque. Tightening beyond specifi-

cations may cause the flanges to break.

15 14 13 21

22 ~

7 8

F ig. 21

GEAR COVER

Disconnect the governor linkage and remove governor

housing and gear-flyweight assembly from shaft in

gear cover. Take out the ten gear cover capscrews

and drive out the two dowel pins as shown in Fig. 23.

The cover can then be taken off - exposing the gear

train as illustrated in Fig. 24.

1 2 ... 18 19 20 21 22 23 24 25 26 27 28 ... 47 48

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Wisconsin VH4D Dokumentacja Strona 23

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