NOTE TABLE V
Install all crush type gaskets except the self centering STUDS type, with the unbroken surface against the flange of MIN. DRIVING TORQUE the plug or part being tightened against the seal. Turn Torquethe part until the sealing surfaces are in contact and Threads In. Lb s. then tighten to the angle of turn listed for the appropriate thread size. 1/4-20 15
5/16-18 25 NOTE: Lubricate Threads Unless Otherwise Specified. 3/8-16 50
SSP1776 1-37
SERVICE TABLE OF LIMITS
PART 1 DIRECT DRIVE ENGINES SECTIONV SPECIAL TORQUE REQUIREMENTS
ADJUSTABLE OIL RELIEF VALVE
Engine Accessories and Hardware 1-38
SSP1776
SERVICE TABLE OF LIMITS
PART 1 DIRECT DRIVE ENGINES
SECTIONV SPECIAL TORQUE REQUIREMENTS
920
Engine Accessoriesand Hardware
SSP1776 1-39
SERVICE TABLE OF LIMITS
PART 1 DIRECT DRIVE ENGINES SECTIONV SPECIAL TORQUE REQUIREMENTS
915
915
Engine Accessories and Hardware
PART 1 DIRECT DRIVE ENGINES
SECTIONV SPECIAL TORQUE REQUIREMENTS
955
Engine Springs and Hardware
SSP1776 1-41
SECTION I SECTION II SECTION III SECTION IV SECTION V
(A)
(B)
(D)
(E)
(L)
(T)
(WD)
SERVICE TABLE OF LIMITS
PART II INTEGRAL ACCESSORY DRIVE ENGINES
CHART MODELS
AQ TIO-541
AZ TIGO-541
500 SERIES CRANKCASE, CRANKSHAFT & CAMSHAFT
600 SERIES CYLINDERS
700 SERIES GEAR TRAIN
800 SERIES BACKLASH (GEAR TRAIN)
900 SERIES TORQUE AND SPRINGS
These fits are either shrink fits controlled by machining, fits that may readily be adjusted, or fits where wear does not normally occur. In each case, the fit must be held to manufacturing tolerance.
Side clearance on piston rings must be measured with face of ring flush with piston.
The dimensions shown are measured at the bottom of the piston skirt at right angles to the piston pin.
Permissible wear of the crankshaft (rod and main bearing journals) to be minus 0.0015 on the diameter.
Loose fit; wherein a definite clearance is mentioned between the mating surfaces.
Tight fit; shrink or interference fit.
Wide Deck Crankcase.
SSP1776
July 31, 1979*
* -Indicates cut-off date for data retrieved prior to publication.
SECTIONI CRANKCASE, CRANKSHAFT,CAMSHAFT
Ref. Ref. Chart New Old
500 501 AQ
AQ-AZ
AQ
500 955 AQ-AZ
501 525 AQ-AZ
AZ
AQ 501 954 AZ
AQ
502 564 AQ-AZ
503 566 AQ-AZ 504 567 AQ-AZ
AQ
SSP1776
Nomenclature
Main Bearings and Crankshaft (Except Front)
MainBearingsand Crankshaft
Front Main Bearingsand
Crankshaft
Diameter of MainBearing
Journal on Crankshaft
(2-5/8 Main)
Diameter of Front Main
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