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Page Title:
REPAIR AND REPLACEMENT STANDARDS - CONTINUED |
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 TM 9-2320-269-34-1
REPAIR AND REPLACEMENT STANDARDS - CONTINUED
COMPONENT
MANUFACTURER'S DIMENSIONS
MAXIMUM ALLOWABLE
POINTS OF
AND TOLERANCES IN INCHES
WEAR AND CLEARANCE
MEASUREMENT
(MILLIMETERS)
IN INCHES (MILLIMETERS)
MINIMUM
MAXIMUM
VALVE GUIDES
Bore diameter
0.3738 (9.495)
0.3748 (9.520)
Length
Intake
3.25 (82.4)
Exhaust
2.968 (75.2)
Height above top
cylinder head
1.219 (30.96)
VALVE TAPPETS
Length
2.550 (64.77)
2.590 (65.79)
Diameter
0.9955 (25.286)
0.9966 (25.298)
Clearance In bore
of block
0.003 (0.076)
0.005 (0.127)
VALVE SPRINGS
Free length
2.075 (52.71)
Test length
1.397 (35.4)
Load (at test length)
192 - 208 lb
(854-925 N)
ROCKER ARMS
Shaft bore diameter
0.8661 (21.999)
0.8670 (22.022)
Clearance on shaft
0.0011 (0.028)
0.0045 (0.114)
Rocker arm to valve
tip clearance
Intake
0.014 (0.36)
Exhaust
0.016 (0.41)
VALVE TIMING
Intake opens
(before tdc)
16 degree
Intake closes
(after bdc)
52 degree
Exhaust opens
(before tdc)
68 degree
Exhaust closes
(after bdc)
16 degree
1-10
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