Table I-I. Repair and Replacement Stanadards-Continued

TM10-3930-634-34

Table 1-1. Repair and Replacement Standards-Continued

New Parts

Wear

Minimum

Engine Parts (standard size)

limits

0.4362"

0.4370"

Roller Pin Hole Diameter

CAM FOLLOWER ROLLERS AND PINS1

0.9070"

0.9020"

Roller Outside Diameter

0.4395 "

0.4390"

Roller Bushing Inside Diameter

0.4377"

0.4374"

Roller Pin Outaide Diameter

0.0021 "

0.010"

0.0013 "

Clearance-Pin-to-Bushing

Horiz

0.230"

0.0150"

Side Clearance-Roller-in-Follower

CAMSHAFTl

2.1825"

2.1820"

Shaft Diameter at Bearings

0.002 "

Runout at Center Bearing (When mounted on End Bearings)

0.208 "

0.210"

Thrust Washer Thickness

0.019"

0.015"

0.008"

End Thrust

CAMSHAFT 1

2.1820"

2.1825"

Shaft Diameter at Bearings

0.002 v

Runout at Center Bearing (When mounted on End Bearings)

0.210"

0.208"

Thrust Washer Thickness

0.015"

0.019"

0.008 "

End Thrust

BALANCE SHAFT1

2.1825"

2.1820"

Shaft Diameter at Bearings

0.208"

0.210"

Thrust Washer Thickness

0.015"

0.019"

End Thrust

0.008"

CAMSHAFT AND BALANCE SHAFT BEARINGS1

2.187"

2.188"

Bearing Inside Diameter

0.008 "

0.0045 "

0.006"

Clearance-Bearings-to-Shaft

CAMSHAFT AND BALANCE SHAFT GEARS1

0.005 "

0.007 "

0.003 "

Backlash

IDLER GEAR1

0.007 "

0.005 "

0.003 "

Backlash

2.187"

2.186"

Idler Gear Bearing Inside Diameter

2.1835"

2.1825"

Idler Gear Hub Outside Diameter

0.007 "

0.0025"

0.0045"

Clearance-Bearing-to-Hub

0.120"

0.118"

Thrust Washer Thickness

0.017"

0.013"

End Play

0.006"

CRANKSHAFT TIMING GEAR1

0.007 "

0.003 "

0.005 "

Backlash

BLOWER DRIVE GEAR1

0.007 "

Backlash

0.005"

0.003 "

0.006"

0.004 "

Blower Drive Gear Shaft End Play

0.103"

Thrust Washer Thickness (4-53)

0.093 "

GOVERNOR GEAR DRIVE1

0.005 "

0.007 "

Backlash

0.003 "

These wear limits also apply to oversize or undersize parts.

This runout tolerance given for guidance when regrinding crankshafts.

NOTE

must not exceed 0.003 inch total indicator

Crankshaft supported on No. 1 and No. 5

reading. When high spots of runout on adja-

journal, runout measured at No. 2, 3 and 4

cent journals are at right angles to each

journals. When runout on adjacent journals is

other, the sum must not exceed 0.004 inch to-

in the. opposite direction, the sum must not

tal indicator reading, or 0.002 inch each

exceed 0.003 inch total indicator reading.

journal.

When in the same direction, the difference

1-5