CONNECTING RODS AND PISTONS

BASIC BLOCK

TESTING AND ADJUSTING

BASIC BLOCK

Main bearings are available with a larger outside diameter

CONNECTING RODS AND PISTONS

than the original size bearings These bearings are for

Use the 5F9059 Piston Ring Expander to remove or

cylinder blocks that have had the bore for the main

install piston rings.

bearings "bored" (made larger than the original size).

Use the IY7426 Piston Ring Compressor or the

4S9450 Compressor and the 4S9446 Clamp from the

FLYWHEEL AND FLYWHEEL HOUSING

4S9458 Teflon Seal Tool Group to install pistons into

cylinder block.

Tools Needed- 8S2328 Dial Indicator Group.

Tighten the connecting rod nuts in the following step

sequence:

Heat the rind gear to install it. Do not heat to more

than 400F (204C). Install the ring gear so the chamfer

1. Put crankcase oil on bolt threads and seating

faces of cap and nut.

on the gear teeth is next to the starter pinion when the

2. Tighten both nuts to 30 3 lb.ft. (4.1 0.4 mkg).

flywheel is installed.

3. Put a mark on each nut and cap.

4. Tighten each nut 60from the mark.

Face Runout (axial eccentricity) of the

Flywheel Housing

The connecting rod bearings should fit tightly in the

bore in the rod. If bearing joints or backs are worn

If any method other than given here is used, always

(fretted), check for bore size as this is an indication of

remember bearing clearances must be removed to get

wear because of looseness.

correct measurements.

5P3519 PISTON RING GROOVE GAUGE

1. Fasten a dial indicator to the crankshaft flange so

the anvil of the indicator will touch the face of the

flywheel housing.

A 5P3519 Piston Ring Groove Gauge is available for

checking ring grooves with straight sides. For instructions

2. Force the crankshaft to the rear before reading

on the use of the gauge, See the GUIDELINE FOR

the indication at each point.

REUSABLE PARTS; PISTONS AND CYLINDER

LINERS, Form No. REG01660.

8S2328 DIAL INDICATOR GROUP INSTALLED

PISTON RING GROOVE GAUGE

3. With dial indicator set at .000 in. (0.0 mm) at location

CONNECTING ROD AND MAIN BEARINGS

(A), turn the crankshaft and read the indicator at locations

(B), (C) and (D).

Bearings are available with a smaller inside diameter

than the original size bearings. These bearings are for

crankshafts that have been "ground" (made smaller than

4. The difference between lower and higher

the original size).

measurements taken at all four points must not be more

than .012 in. (0.30 mm), which is the maximum

permissible face runout (axial eccentricity) of the flywheel

housing.