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John Deere 317 Lawn Tractor Engine

John Deere 317 Engine Specifications

Engine Model ............. Kohler KT17QS
Engine Type ............. 4-Stroke, gasoline, twin-cylinder air-cooled
Number of Cylinders ............. 2
Displacement, cc (cu.in) ............. 692 (42.2)
Engine Bore, mm (in) ............. 79.4 (3.13)
Engine Stroke, mm (in) ............. 69.8 (2.75)
Rated Engine Power, hp (kW) ............. 17.0 (12.7)
Rated Engine Speed, rpm ............. 3600
Fuel System Type ............. Carburetor
Carburetor Model ............. Kohler
Carburetor Type ............. Side draft, adjustable jet
Fuel Pump ............. Mechanically operated
Governor ............. Mechanical
Lubrication ............. Pressurized
Oil Pump ............. Rotor type
Oil Capacity, L (qts) ............. 1.42 (1.50)
Electrical System Rating, Volts ............. 12
Charging System ............. Alternator
Weight, kg (lbs) ............. 53.5 (118)

John Deere 317 Engine Maintenance Data

Valve Adjustment

Intake Valve Clearance (Cold), mm (in) ............. 0.076-0.152 (0.003-0.006)
Exhaust Valve Clearance (Cold), mm (in) ............. 0.278-0.354 (0.011-0.014)
Valve Lift (Zero Lash), mm (in) ............. 7.11 (0.280)
Intake Valve Stem to Guide (Max), mm (in) ............. 0.114 (0.0045)

Engine Oil and Filters

Engine Oil Type (Summer) ............. SAE 30
Engine Oil Type (Winter) ............. SAE 5W-20, 5W-30
Oil Classification ............. SF or SG
Oil Capacity (w/o Filter), L (qts) ............. 1.5 (1.6)
Oil Capacity (with Filter), L (qts) ............. 1.9 (2.0)
Oil Filter Part Number ............. 12-050-01-S
Air Filter Part Number ............. 45-083-02-S

Carburetor Adjustment

Main Fuel ............. 2-1/2 turns
Idle Fuel ............. 1 to 1-1/4 turns
Low Idle Speed, rpm ............. 1200±75
High Idle Speed, rpm ............. 3600±50

Ignition System

Spark Plug Type ............. Champion RBL15Y
Spark Plug Gap, mm (in) ............. 0.635 (0.025)
Breaker Point Gap, mm (in) ............. 0.432-0.580 (0.017-0.023)
Thread Size, mm (in) ............. 14 (0.55)
Spark Plug Reach, mm (in) ............. 11.7 (0.46)
Spark Plug Torque, Nm (ft-lbs) ............. 14-20 (10-15)

John Deere 317 Engine Service Specifications

Cylinder Block

Cylinder Bore Diameter (Std), in (mm) ............. 3.125 (79.375)
Cylinder Bore Diameter (Max. Wear), in (mm) ............. 3.128 (79.45)
Cylinder Bore (Max. Taper), in (mm) ............. 0.0015 (0.038)
Cylinder Bore (Max. Out of Round), in (mm) ............. 0.002 (0.05)
Camshaft End Play, in (mm) ............. 0.003-0.013 (0.077-0.330)
Camshaft Bearing, in (mm) ............. 0.0010-0.0025 (0.025-0.063)
Crankcase End Play (Ball Bearing), in (mm) ............. 0.002-0.023 (0.051-0.580)

Valves

Intake Valve to Tappet (Cold), in (mm) ............. 0.003-0.006 (0.076-0.150)
Exhaust Valve to Tappet (Cold), in (mm) ............. 0.011 -0.014 (0.279-0.355)
Valve Lift (Zero Lash), in (mm) ............. 0.280 (7.11)
Intake Valve Stem to Guide (Max), in (mm) ............. 0.0045 (0.114)
Exhaust Valve Stem to Guide (Max), in (mm) ............. 0.0065 (0.165)
Tappet Clearance in Guide (Max), in (mm) ............. 0.0005-0.0024 (0.013-0.060)
Valve Guide Interference Fit in Cylinder, in (mm) ............. 0.005-0.002 (0.013-0.051)
Valve Guide Ream Diameter, in (mm) ............. 0.312-0.313 (7.925-7.950)

Piston and Piston Rings

Piston Thrust Face to Bore Running, in (mm) ............. 0.006-0.008 (0.15-0.20)
Top Ring Side Clearance, in (mm) ............. 0.002-0.004 (0.051-0.10)
Second Ring Side Clearance, in (mm) ............. 0.001-0.003 (0.025-0.077)
Oil Ring Side Clearance, in (mm) ............. 0.001-0.003 (0.025-0.077)
Rings End Gap, in (mm) ............. 0.010-0.020 (0.254-0.508)
Wrist Pin to Piston Boss (Max), in (mm) ............. 0.0003 (0.008)
Wrist Pin to Rod, in (mm) ............. 0.0006-0.0011 (0.016-0.027)
Piston Thrust Face Diameter (Max. Wear), in (mm) ............. 3.1165 (79.159)

Crankshaft

Crankshaft End Play (Sleeve Bearing), in (mm) ............. 0.002-0.014 (0.051-0.355)
Crankshaft Running Clearance (Sleeve Bearing), in (mm) ............. 0.0013-0.0033 (0.034-0.083)
Crankshaft Crankpin Diameter (Std), in (mm) ............. 1.3733-1.3738 (34.882-34.895)
Crankshaft Crankpin (Max. Out of Round), in (mm) ............. 0.0005 (0.013)
Crankshaft Crankpin (Max. Taper), in (mm) ............. 0.001 (0.025)
Crankshaft Main Bearing Diameter (Std), in (mm) ............. 1.7412-1.7422 (44.226-44.252)
Crankshaft Main Bearing Diameter (Min), in (mm) ............. 1.7407 (44.22)

Connecting Rod

Connecting Rod to Piston Pin Running, in (mm) ............. 0.0006-0.0011 (0.016-0.027)
Connecting Rod to Side Play on Crankpin, in (mm) ............. 0.005-0.016 (0.13-0.41)
Connecting Rod to Crankpin Running, in (mm) ............. 0.0012-0.0024 (0.030-0.060)
Connecting Rod Crankpin Bore Diameter, in (mm) ............. 1.3750-1.3757 (34.925-34.943)
Connecting Rod Crankpin Bore Diameter (Max), in (mm) ............. 1.3765 (34.963)
Connecting Rod Wristpin Bore Diameter, in (mm) ............. 0.62565 (15.891)

John Deere 317 Engine Tightening Torque Specs

Spark Plugs, Nm (ft-lbs) ............. 14-20 (10-15)
Flywheel Retaining Screw, Nm (ft-lbs) ............. 54 (40)
Manifold Screws, Nm (ft-lbs) ............. 17 (12.6)
Closure Plate Screws, Nm (ft-lbs) ............. 17 (12.6)
Cylinder Head Screws, Nm (ft-lbs) ............. 20-27 (15-20)
Cylinder Barrel Stud Nuts, Nm (ft-lbs) ............. 40.5 (30)
Connecting Rod Screws, Nm (ft-lbs) ............. 23 (17)
Connecting Rod Nuts, Nm (ft-lbs) ............. 15.8 (11.7)
Crankcase Stud Nuts, Nm (ft-lbs) ............. 29 (21.5)
Crankcase Cap Screws, Nm (ft-lbs) ............. 17 (12.6)

JOHN DEERE TRACTORS ATTACHMENTS
420	430	455	790	990
X300	X320	X330	X350	X475
X485	X500	X540	X570	X590
X700	X720	X738	X758	1023E
2025R	2210	2520	3025E	3032E
3038E	3038R	3039R	3046R	3203
3320	3520	4052R	4066R	4100
4105	4115	4200	4310	4320
4400	4410	4520	4600	4720

JD TRACTORS TROUBLESHOOTING
2640	3040	3310	3650	4100
5050D	5090R	5410	6105R	7200R
E130	L111	LA110	LT155	X300R