New Holland 40 Series Repair Manual page 39

- - - - - - - - - - - - - - C H A P T E R 1 - - - - - - - - - - - - - -
1. If not to specification use Tool No. FNH
00053 and press out the old bush using
the removal fixture as shown in
Figure 34. Press fit a new bush through
the fixture using the installation detail and
into the connecting rod as shown in
Figure 34. After fitting a new bush ensure
all sharp edges and burrs are removed.
NOTE: A, Ensure the split in the small end
bush is at right angles to centre line of con-
necting rod. B, Connecting rods should only
be changed as matched sets.
2. Where special tooling is not available for
the removal or fitment of the connecting
rod bush a standard bush can be fitted,
Figure 35, in the following manner:
3. Place the connecting rod securely in a
bench press. Manufacture from suitable
bar stock, a press tool with the end face
ground at an angle to suit the connecting
rod bush side face. Position the tool on
the bush and gently drive the bush from
its position. It is recommended a guide is
manufactured to assist alignment of the
bar stock during this operation.
Connecting Rod Bush Fitment
1. Press Tool
2. Bush
3. Machined Side
4. Bush Slot Alignment
4. A new bush can then be fitted in a similar
manner by using a suitable piece of bar
stock with an end face machined flat to
suit the standard parallel bush. Use a
guide as described and gently drive in the
new bush into the connecting rod.
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5. After installation grind the side faces of
the new bush to match the side faces of
the connecting rod. Ensure all sharp
edges are removed and loose chippings
are cleaned from the connecting rod be-
fore re-assembly into the engine.
Drilling of Connecting Rod
1. Connecting Rod 2. Drill
6. With a new bush fitted, drill a hole through
the top of the connecting rod using a
0.187 in (4.6mm) and drill through the ex-
isting oil hole, Figure 36.
7. Use an expanding reamer to obtain cor-
rect bushing to piston pin clearance refer-
ring to specification section. Remove
burrs and chippings before refitting.
CYLINDER BLOCK OVERHAUL
1 . Cylinder block plugs and senders require
changing if leaking or rusty and must be
replaced. Clean the old sealant off the
block and fit new plugs with sealer, this
applies to both the 4 and 6 cylinder en-
gine range.
Figure 37 refers to the front and left hand
side of the cylinder block.
NOTE: New part mating faces and threads
should be coated in sealant, refer to "Specifi-
cations". Assemble in the following manner:-
Plug (1) torque to 6-10 lbf ft (8-14N m)
0.8-1.3 kgf m. Use sealant C.
Switch (2) torque 18-25 lbf ft (24-34N m)
2.4-3.4 kgf m. Use sealant E.
Plug(3) torque to 50-70 lbf ft (68-95N m)
6.9-9.6 kgf m. Use sealant F.
Plug (4) drive in to block.
Plug (5) torque to 18-25 lbf ft (24-34N m).
2.4-3.4 kgf m. Use sealant E.