SPECS & TORQUES - Gardner Inc

[Pages:31]SPECIFICATIONS & TOLERANCES TORQUE VALUE & SEQUENCES

SPECS & TORQUES

Table of Contents

Standard Application Torque Recommendations ..................................................................................................3 K?Series Single Cylinder Engine Specifications & Tolerances ........................................................................ 4-5 K?Series Twin Cylinder Engine Specification & Tolerances ............................................................................. 6-7 K?Series Single Cylinder Torque Values & Sequences for Fasteners .................................................................8 K?Series Twin Cylinder Torque Values & Sequences for Fasteners....................................................................9 Magnum Single Cylinder Engine Specifications & Tolerances ...................................................................... 10-11 Magnum Twin Cylinder Engine Specifications & Tolerances ......................................................................... 12-13 Magnum Single Cylinder Torque Values & Sequences for Fasteners ............................................................... 14 Magnum Twin Cylinder Torque Values & Sequences for Fasteners .................................................................. 15 Command Single Cylinder Engine Specifications & Tolerances ................................................................... 16-21 Command Twin Cylinder Engine Specification & Tolerances ....................................................................... 22-25 Command Single Cylinder Torque Values & Sequences for Fasteners ....................................................... 26-27 Command Twin Cylinder Torque Values & Sequences for Fasteners .......................................................... 28-29 Conversion Factors............................................................................................................................................. 30

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Standard Application Torque Recommendations

Torque values are in N?m. Values in parenthesis ( ) are English equivalents.

Metric Fastener

Tightening Torque: N?m (in. lb.) + or ? 10%

4.8

Size M4 M5 M6 M8

1.2 (11) 2.5 (22) 4.3 (38) 10.5 (93)

Property Class

5.8

8.8

10.9

Noncritical

Fasteners

12.9

Into Aluminum

1.7 (15) 3.2 (28) 5.7 (50) 13.6 (120)

2.9 (26) 5.8 (51) 9.9 (88) 24.4 (216)

4.1 (36) 8.1 (72) 14.0 (124) 33.9 (300)

5.0 (44) 9.7 (86) 16.5 (146) 40.7 (360)

2.0 (18) 4.0 (35) 6.8 (60) 17.0 (150)

Tightening Torque: N?m (ft. lb.) + or ? 10%

4.8

M10 21.7 (16) M12 36.6 (27) M14 58.3 (43)

Property Class

5.8

8.8

10.9

Noncritical

Fasteners

12.9

Into Aluminum

27.1 (20) 47.5 (35) 76.4 (55)

47.5 (35) 66.4 (49) 81.4 (60) 82.7 (61) 116.6 (86) 139.7 (103) 131.5 (97) 184.4 (136) 219.7 (162)

33.9 (25) 61.0 (45) 94.9 (70)

Oil Drain Plugs (All Models)

Size 1/8" NPT 1/4" 3/8" 1/2" 3/4" X-708-11

Into Cast Iron ?

17.0 (150 in. lb.) 20.3 (180 in. lb.) 27.1 (20 ft. lb.) 33.9 (25 ft. lb.) 27.1/33.9 (20/25 ft. lb.)

Into Aluminum 4.5 (40 in. lb.) 11.3 (100 in. lb.) 13.6 (120 in. lb.) 17.6 (13 ft. lb.) 21.7 (16 ft. lb.) 27.1/33.9 (20/25 ft. lb.)

Torque Conversions

N?m = in. lb. x 0.113 N?m = ft. lb. x 1.356 in. lb. = N?m x 8.85 ft. lb. = N?m x 0.737

English Fastener

Tightening Torque: N?m (in. lb.) + or ? 20% Bolts, Screws, Nuts and Fasteners Assembled Into Cast Iron or Steel

Grade 2

Grade 5

Size 8-32 10-24 10-32 1/4-20 1/4-28 5/16-18 5/16-24 3/8-16 3/8-24

2.3 (20) 3.6 (32) 3.6 (32) 7.9 (70) 9.6 (85) 17.0 (150) 18.7 (165) 29.4 (260) 33.9 (300)

2.8 (25) 4.5 (40) 4.5 (40) 13.0 (115) 15.8 (140) 28.3 (250) 30.5 (270) -----------------

Tightening Torque: N?m (ft. lb.) + or ? 20%

Size 5/16-24 3/8-16 3/8-24 7/16-14 7/16-20 1/2-13 1/2-20 9/16-12 9/16-18 5/8-11 5/8-18 3/4-10 3/4-16

------------------------47.5 (35) 61.0 (45) 67.8 (50) 94.9 (70) 101.7 (75) 135.6 (100) 149.2 (110) 189.8 (140) 199.3 (150) 271.2 (200)

---------47.5 (35) 54.2 (40) 74.6 (55) 101.7 (75) 108.5 (80) 142.4 (105) 169.5 (125) 223.7 (165) 244.1 (180) 311.9 (230) 332.2 (245) 440.7 (325)

Grade 8

------------------------18.7 (165) 22.6 (200) 39.6 (350) -------------------------

40.7 (30) 67.8 (50) 81.4 (60) 108.5 (80) 142.4 (105) 155.9 (115) 223.7 (165) 237.3 (175) 311.9 (230) 352.6 (260) 447.5 (330) 474.6 (350) 637.3 (470)

Grade 2 or 5 Fasteners Into

Aluminum

2.3 (20) 3.6 (32) --------7.9 (70) --------17.0 (150) -------------------------

---------------------------------------------------------------------------------------------------------

13/8-16 thread with hex. head nut and fiber gasket.

3

K-Series?Single Cylinder Engine Specifications & Tolerances

All dimensions in inches.

Model (Horsepower)

K91 (4) K161 (7) K181 (8) K241 (10) K301 (12)

General Balance

Gear Camshaft Connecting

Rod

Crankshaft

Cylinder Bore

Cylinder Head

Ignition

Bore x Stroke

Displacement Cu. In.

Max. Operating RPM

Shaft O.D.

New Max. Wear Limit

End Play

End Play

Rod to Crankpin (New)

Running Rod to Crankpin Clearance Wear Limit

Rod to Piston Pin (New)

Small End I.D. (New)

Main PTO & Flywheel

New

End O.D. Max. Wear Limit

C R New A N Max. Wear Limit K P Max. Out of Round I N Max. Taper

End Play

Inside Diameter

New Max. Wear Limit

Max. Out of Round

Max. Taper

Max. Out of Flatness

Spark Plug Type & Gap

Type (Champion? or equivalent)

Battery

Magneto

Gaseous Fuels

Nominal Point Gap

2.375 x 2.000 8.86 4000 ? ? ?

0.005/0.020

0.001/0.0025

0.003

0.0007/0.0008 0.5630/0.5633 0.9841/0.9844

0.9841

0.9360/0.9355

0.9350

0.0005

0.001 0.004/0.023 2.3755/2.3745

2.378 0.003 0.003

0.003 RCJ-8

0.025 0.025 0.018 0.020

2.938 x 2.500 16.94 3600 ? ? ?

0.005/0.010

0.001/0.002

0.0025

0.0006/0.0011 0.6255/0.6258 1.1811/1.1814

1.1811

1.1860/1.1855

1.1850

0.0005

0.001 0.002/0.023 2.9380/2.9370

2.941 0.003 0.003

0.003 RCJ-8

0.025 0.025 0.018 0.020

2.938 x 2.750 18.64 3600 ? ? ?

0.005/0.010

0.001/0.002

0.0025

0.0006/0.0011 0.6255/0.6258 1.1811/1.1814

1.1811

1.1860/1.1855

1.1850

0.0005

0.001 0.002/0.023 2.9380/2.9370

2.941 0.003 0.003

0.003 RCJ-8

0.025 0.025 0.018 0.020

3.251 x 2.875 23.85 3600

0.4998/0.5001 0.4996

0.002/0.010 0.005/0.010

0.001/0.002

0.0025

0.0003/0.0008 0.8596/0.8599 1.5745/1.5749

1.5745

1.5000/1.4995

1.4990

0.0005

0.001 0.003/0.020 3.2515/3.2505

3.254 0.003 0.002

0.003 RH-10

0.035 0.025 0.018 0.020

3.375 x 3.250 29.07 3600

0.4998/0.5001 0.4996

0.002/0.010 0.005/0.010

0.001/0.002

0.0025

0.0003/0.0008 0.8757/0.8760 1.5745/1.5749

1.5745

1.5000/1.4995

1.4990

0.0005

0.001 0.003/0.020 3.3755/3.3745

3.378 0.003 0.002

0.003 RH-10

0.035 0.025 0.018 0.020

K321 (14)

3.500 x 3.250 31.27 3600

0.4998/0.5001 0.4996

0.002/0.010 0.005/0.010

0.001/0.002

0.0025

0.0003/0.0008 0.8757/0.8760 1.5745/1.5749

1.5745

1.5000/1.4995

1.4990

0.0005

0.001 0.003/0.020 3.5005/3.4995

3.503 0.003 0.002

0.003 RH-10

0.035 0.025 0.018 0.020

K341 (16)

3.750 x 3.250 35.90 3600

0.4998/0.5001 0.4996

0.002/0.010 0.005/0.010

0.001/0.002

0.0025

0.0003/0.0008 0.8757/0.8760 1.5745/1.5749

1.5745

1.5000/1.4995

1.4990

0.0005

0.001 0.003/0.020 3.7505/3.7495

3.753 0.003 0.002

0.003 RH-10

0.035 0.025 0.018 0.020

4

Model (Horsepower)

K91 (4) K161 (7) K181 (8) K241 (10) K301 (12)

All Pistons

Service Replacement Sizes

Thrust

New

Face O.D.2 Max. Wear Limits

2.371/2.369 2.366

2.9297/2.9281 2.925

0.003 ? 0.010 ? 0.020 ? 0.030

2.9297/2.9281 3.2432/3.2413 3.368/3.365

2.925

3.238

3.363

2

Thrust Face to Bore Clearance

(New)1

0.0035/0.006 0.007/0.010

0.007/0.010

0.007/0.010

0.007/0.010

Piston

Ring End Gap

New Bore Used Bore (Max.)

Max. Ring Side Clearance

0.007/0.017 0.027 0.006

0.007/0.017 0.027 0.006

0.007/0.017 0.027 0.006

0.010/0.020 0.030 0.006

0.010/0.020 0.030 0.006

Thrust Face New

?

?

?

?

?

O.D.4

Max. Wear Limits

?

?

?

?

?

4

1/2"

Thrust Face to Bore Clearance (New)1

?

?

?

?

?

Piston

Ring End New Bore5

?

?

?

?

?

Gap

Used Bore (Max.)5

?

?

?

?

?

Max. Ring Side Clearance

?

Thrust Face New

?

O.D.4

Max. Wear Limits

?

Thrust Face to Bore Clearance

4

1/2" (New)1

?

Piston

Ring End New Bore5

?

Gap

Used Bore (Max.)5

?

Max. Ring Side Clearance

?

?

?

?

?

?

2.9329/2.9336

?

3.3700/3.3693

?

2.931

?

3.367

?

0.0034/0.0051

?

0.0045/0.0062

?

0.010/0.023

?

0.010/0.020

?

0.032

?

0.030

?

0.006

?

0.006

Piston Pin Outside Diameter Guide Reamer Size

0.5623/0.5625 0.6247/0.6249 0.6247/0.6249 0.8591/0.8593 0.8752/0.8754

0.250

0.3125

0.3125

0.3125

0.3125

Tappet Clearance (Cold)

Intake Exhaust

0.005/0.009 0.011/0.015

0.006/0.008 0.017/0.019

0.006/0.008 0.017/0.019

0.008/0.010 0.017/0.019

0.008/0.010 0.017/0.019

Valves

Minimum Lift

Intake

(Zero Lash) Exhaust

Minimum Intake Valve Stem

O.D.

Exhaust

Nominal Angle Valve Seat

0.2035 0.1768 0.2478 0.2458

45?

0.2718 0.2482 0.3103 0.3088

45?

0.2718 0.2482 0.3103 0.3088

45?

0.318 0.318 0.3103 0.3074

45?

0.318 0.318 0.3103 0.3074

45?

Guide I.D. Max. Wear Limit1

Intake Exhaust

0.005 0.007

0.005 0.007

0.005 0.007

0.006 0.008

0.006 0.008

1Subtract O.D. of inner part from I.D. of outer part. 2Measure just below oil ring groove and at right angles to piston pin. 31800 RPM generator sets .005/.007.

4Measure 1/2" above the bottom of the piston skirt. 5Top and center compression rings.

K321 (14)

3.4941/3.4925 3.491

0.007/0.010 0.010/0.020

0.030 0.006

? ?

? ? ? ? 3.4945/3.4938 3.492

0.0050/0.0067 0.010/0.020 0.030 0.006

0.8752/0.8754 0.3125

0.008/0.010

0.017/0.019 0.318

0.318

0.3103

0.3074 45?

0.006

0.008

K341 (16)

3.7425/3.7410 3.738

0.007/0.010 0.010/0.020

0.030 0.006 3.7465/3.7455 3.744

0.0030/0.0050 0.010/0.020 0.030 0.004

3.7433/3.7426 3.7406

0.0062/0.0079 0.013/0.025 0.033 0.004

0.8752/0.8754 0.3125

0.008/0.010 3 0.017/0.019

0.318 0.318 0.3103 0.3074

45? 0.006 0.008

5

General

K-Series?Twin Cylinder Engine Specifications & Tolerances

All dimensions in inches.

Model (Horsepower)

KT17 (17)

KT19 (19)

Bore x Stroke Displacement Cu. In. Max. Operating RPM

3.125 x 2.750 42.18 3600

3.125 x 3.063 47.0 3600

Camshaft Connecting

Rod

Crankshaft

Cylinder Bore

Cylinder Head

Sleeve I.D. Installed

End Play

Running Clearance

Rod to Crankpin (New) Rod to Crankpin Wear Limit Rod to Piston Pin (New)

Small End I.D. (New)

Sleeve Bearing Journal

New Wear Limit

M A

Ball/Roller Bearing Journal

New Wear Limit

I Max. Out of Round (Sleeve)

N Max. Taper (Sleeve)

Running Clearance

New

(Max.)

(Sleeve) Wear Limit?

New Sleeve Bearing I.D. Installed

C R New A N Max. Wear Limit K P Max. Out of Round I N Max. Taper

End Play

Inside Diameter

New Max. Wear Limit

Max. Out of Round

Max. Taper

Max. Out of Flatness

?

0.003/0.013 0.0012/0.0024

0.0029 0.0006/0.0011 0.6255/0.6258 1.7412/1.7422

1.7407 ? ?

0.0005 0.001

0.0049 0.0059 1.7439/1.7461

1.3738/1.3733

1.3728

0.0005

0.001 0.002/0.014 3.1255/3.1245

3.128 0.002 0.0015

0.003

?

0.003/0.013 0.0012/0.0024

0.0029 0.0006/0.0011 0.7507/0.7510 1.7412/1.7422

1.7407 ? ?

0.0005 0.001

0.0049 0.0059 1.7439/1.7461

1.4998/1.4993 2

1.4988 2

0.0005

0.001 0.002/0.014 3.1255/3.1245

3.128 0.002 0.0015

0.003

6

K582 (23)

3.500 x 3.000 57.73 3600

Rear 1.251/1.252 Front 1.876/1.877

0.003/0.024 0.001/0.002

0.0025 0.0003/0.0008 0.8757/0.8760

1.7495/1.7500 1.7490

1.7716/1.7721 1.7711 0.0005 0.001

0.004 0.005 1.7515/1.7535

1.6250/1.6245

1.6240

0.0005

0.001 0.004/0.010 3.5005/3.4995

3.503 0.005 0.002

0.003

Model (Horsepower)

KT17 (17)

Ignition

Type (Champion? or equivalent)

Spark Plug Type & Gap

Battery

Gaseous Fuels

Nominal Point Gap

Service Replacement Sizes

3

Thrust Face O.D.3 New Max. Wear Limits

Thrust Face to Bore Clearance (New)1

Piston

Ring End Gap

New Bore Used Bore (Max.)

Max. Ring Side Clearance

Service Replacement Sizes

Thrust Face O.D.4 New Max. Wear Limits

4

1/2" Thrust Face to Bore Clearance (New)1,4

Piston

Ring End Gap

New Bore5 Used Bore (Max.)5

Max. Ring Side Clearance

Piston Pin Outside Diameter

Guide Reamer Size

RY17YC 0.025 0.018 0.020

3.118/3.117 3.113

0.0065/0.0085 0.010/0.020 0.030 0.004

3.1210/3.1203 3.118

0.0035/0.0052 0.010/0.020 0.032 0.006

0.6247/0.6249 0.3125

Tappet Clearance (Cold)

Intake Exhaust

0.003/0.006 0.011/0.014

Valves

Minimum Lift

Intake

(Zero Lash) Exhaust

Minimum Valve Stem

Intake

O.D.

Exhaust

Nominal Angle Valve Seat

0.280 0.280 0.3103 0.3088

45?

Guide I.D. Max. Wear Limit1

Intake Exhaust

1Subtract O.D. of inner part from I.D. of outer part. 2Pre Series II 1.3733/1.3738, Maximum Wear 1.3728. 3Measure just below oil ring groove and at right angles to piston pin.

0.005

0.007 4Measure 1/2" above the bottom of the piston skirt. 5Top and center compression rings.

KT19 (19)

RV17YC 0.025 0.018 0.020

0.003 ? 0.010 ? 0.020 ? 0.030 3.121/3.120 3.113

0.0035/0.0055 0.010/0.020 0.030 0.004

0.003 ? 0.010 ? 0.020 ? 0.030 3.1215/3.1208 3.119 0.0030/0.0047 0.010/0.023 0.032 0.006 0.7499/0.7501 0.3125

0.003/0.006

0.011/0.014

0.280

0.280

0.3103

0.3088 45?

0.005

0.007

K582 (23)

RH-10 0.025 0.018 0.020

3.4941/3.4925 3.491

0.007/0.010 0.010/0.020

0.030 0.006

? ? ? ? ? ? 0.8752/0.8754 0.3125 0.008/0.010 0.017/0.020 0.318 0.318 0.3103 0.3074 45? 0.006 0.008

7

K-Series?Single Cylinder Torque Values & Sequences for Fasteners

Model (Horsepower)

Connecting Posi-Lock1,2 Rods1 Capscrew1,3 Spark Plugs

K91 (4)

? 140 in. lbs. 18-22 ft. lbs.

K161 (7)

?

K181 (8)

New 140 in. lbs. Used 100 in. lbs.

K241 (10)

200 in. lbs. 18-22 ft. lbs.

K301 (12) K321 (14)

New 260 in. lbs. Used 200 in. lbs.

285 in. lbs. 18-22 ft. lbs.

K341 (16)

Cylinder Head1

6 13

K91 200 in. lbs. 5

42

7

14

K161 & K181 3 15-20 ft. lbs.

5 26

7

8 14

K241,

9

K301, K321

3

25-30 ft. lbs.

52

6

7

8 14

10

K341 25-30 ft. lbs.

9

3

6

52

Flywheel Nut1 Retaining5 Screw1

40-50 ft. lbs. 250 in. lbs.

85-90 ft. lbs. 4 ?

50-60 ft. lbs. 22-27 ft. lbs.

Governor Bushing

70-90 in. lbs.

130-150 in. lbs.

100-120 in. lbs.

Grass Screen

Metal Plastic

?

70-140 in. lbs.

?

?

70-140 in. lbs. 20-30 in. lbs.

Oil Pan Cast Iron1

250 in. lbs.

Grade 5-250 in. lbs. Grade 8-350 in. lbs.

35 ft. lbs.

Sheet Metal1

?

?

200 in. lbs.

Non Metallic Fuel Pump

Mounting Screws

?

37-45 in. lbs.

37-45 in. lbs.

1Lubricate fastener threads with engine oil. 2DO NOT overtorque ? DO NOT loosen and retorque the hex. nuts on Posi-Lock connecting rods.

NEW ? Component directly from stock. USED ? Component that was in a running engine.

3Overtorque 20%, loosen below torque value and retorque to final torque value. 4Prior to Serial No. 23209832 ? 45-55 ft. lbs. 5Flywheel and crankshaft tapers must be clean and dry.

8

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