B  Front Governor Gear and .0010L
Crankcase  .0030L .004L
732  674 G1-G2-S-T-AF  Front Governor Gear -End Clearance  .008L .016L  .021L 
BD-BE  Front Governor Gear -End Clearance  .0045L .0165L  .021L 
SSP1776  1-16 

SERVICE TABLE OF LIMITS PART 1 DIRECT DRIVE ENGINES SECTIONIII GEAR TRAIN SECTION-GOVERNOR & HYDRAULICPUMP(CONT.)
Ref. Ref. Chart New Old
733 675 G-J-SG-J-S
G-S (DUALMAGNETO) 734 674 G-J-S
G-S

(DUALMAGNETO) 735 772T-AF
Clearances Mfr. Min. Serv.
& Max.
Ma:
.0010L .005L .0010L .0025L .005L
.002L
.024L .034L
.002L
.037L .044L
.0010L .004L
.0010L .004L
.010L
.066L .076L
.007L
.032L .039L
.0010L .0030L .0045L
.0010l
.0025L .004L
.0010L
.0025L .006L
.010L .057L .075L
.003L .020L .030L
.000 .067L .075L
.012L .044L .055L
.017L .039L .050L
.0015L .0035L .006L
.0010L .0050L .0065L
.0015L .0035L .006L
.0010L .0025L .004L
.000 .017L .027L

736
737T-AF773
737
737 989
989

738 590
739 625
739 540
741
SSP1776
.

SSP1776
T-AF
(DUALMAGNETO)

T-AF

T-AF
(DUALMAGNETO)

Nomenclature  Dimensions 
Mfr. 
Min.  Serv. 
&  Max. 
Max. 
Rear Governor Gear and 
Adapter 

Rear Governor Gear and AccessoryHousing
Rear Governor Gear -End
Clearance

Rear Governor Gear -End Clearance
Hydraulic Pump Gear and Adapter
Hydraulic Pump Gear and Accessory Housing
Hydraulic Pump Gear -End Clearance
Hydraulic Pump Gear -End Clearance
SECTIONIII GEAR TRAIN SECTION-VACUUM& TACHOMETER

A-B-G-J-S-T-Y-
AF
S-T-AF
(DUALMAGNETO)

D

A-B-G-J-S-T-AF

D
Y
S
(DUAL MAGNETO)

T-AF
(DUAL MAGNETO)

A-B-Y

BD-BE

D-G-J-S-T-AF

G-J-S
(DUALDRIVE)

G-J-S
(DUALDRIVE)

Vacuum Pump Gear and Adapter
Vacuum Pump Gear and Accessory Housing
Vacuum Pump Gear and Accessory Housing
Vacuum Pump Gear -End Clearance
Vacuum Pump Gear -End Clearance
Vacuum Pump Gear -End Clearance
Vacuum Pump Gear -End Clearance
Vacuum Pump Gear -End Clearance
Tachometer Drive Shaft and Adapter
Tachometer DriveShaft and Adapter
Tachometer Drive Shaft and Accessory Housing
Vacuum Pump Gear and Adapter
Vacuum Pump Gear -End Clearance
1-17