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Page Title:
CHAPTER 10. REPAIR AND REBUILD STANDARDS |
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 REPAIR AND REBUILD STANDARDS
parts which have not been worn beyond the di-
291. GENERAL
mension shown in the "Wear limit s" columns or
damaged from corrosion will be approved for
The repair and rebuild standards contained
service. An asterisk (*) in the "Wear limits"
herein give the minimum, maximum, and key
column indicates that the part or parts should
clearances of new or rebuilt parts. They also
be replaced when worn beyond the limits given
give wear limits which inicate that point to
in the "Sizes and fits of new parts" column. In
the "Sizes and fits of new parts" column, the
which a part or parts may be worn before re-
placement, in order to receive maximum serv-
letter "L" indicates a loose fit (clearance) and
ice with minimum replacement. Normally, all
the letter "T" indicates a tight fit (interference).
AND CONNECTING RODS
Note. The inside diameter of replacement camshaft bushing-type bearings and cylinder sleeves
should not be gaged until they are installed in the cylinder and crankcase assembly.
Wear limits
Ref.
Fig.
Sizes and fits
Field
Depot
No.
letter
of new parts
Point of measurement
maint
maint
a. Camshaft, Bushing-type Bearings, and Camshaft Thrust Plate.
(1) Outside diameter of bushing-type bearings.
A
Outside diameter of front bushing-type
bearing. (Press fit in bore dimen-
sion M below. )
B
Outside diameter of front intermediate
bushing-type bearing. (Press fit in
bore dimension L below. )
C
Outside diameter of rear intermedi-
ate bushing-type bearing. (Press
fit in bore dimension K below. )
D
Outside diameter of rear bushing-
type bearfing. (Press fit in bore
dimension J below. )
(2) Inside diameter of bushing-type bearing bores in cylinder and crankcase.
*
*
J
Rear bearing bore ------------------
2.1245
to
2.1255
*
*
K
Rear intermediate bearing bore -----
2.4370
to
2.4380
*
*
L
Front intermediate bearing bore -----
2.4995
to
2.5005
*
*
M
Front bearing bore -----------------
2.5620
to
2.5630
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