Kohler Logo Lister 5/1 Diesel

Kohler Engine Specifications

Single Cylinder Engines Page 1: K91 - K241

Horsepower
Engine Model 		4hp
K91 		6hp
K141 		7hp
K161		 8hp
K181 		10hp
K241
Cu In
Cu Cm 		8.86
145.22 		16.94
276.99 		16.94
286.00 		18.64
304.85 		23.85
391.72
Cylinder
New 		2.375"
60.325 mm 		2.9375"
74.613mm 		2.9375"
74.613mm 		2.9375"
74.613mm 		3.251"
82.575mm
Cylinder
Worn 		2.378"
60.401 mm 		2.9405"
74.689mm 		2.9405"
74.689mm 		2.9405"
74.689mm 		3.2545"
82.664mm
Cylinder
Taper 		0.0025"
0.064 mm 		0.0025"
0.064 mm 		0.0025"
0.064 mm 		0.0025"
0.064 mm 		0.0015"
0.038mm
Cyl Out
Of Round 		0.005"
0.127 mm 		0.005"
0.127 mm 		0.005"
0.127 mm 		0.005"
0.127 mm 		0.005"
0.127 mm
Crankshaft
End Play 		0.004/0.023"
0.102/0.584mm 		0.002/0.023"
0.005.0.584mm 		0.002/0.023"
0.005.0.584mm 		0.002/0.023"
0.005.0.584mm 		0.003/0.020"
0.076/0.508mm
Crank Front/
Rear Dia 		0.984"
25.00mm 		1.181"
30.16mm 		1.181"
30.16mm 		1.181"
30.16mm 		1.574"
40.00mm
Crankpin
New Dia 		0.936"
23.774mm 		1.186"
30.124mm 		1.186"
30.124mm 		1.186"
30.124mm 		1.50"
38.10mm
Crankpin Out
Of Round 		0.0005"
0.013mm 		0.0005"
0.013mm 		0.0005"
0.013mm 		0.0005"
0.013mm 		0.0005"
0.013mm
Crankpin
Max Taper 		0.001"
0.025mm 		0.001"
0.025mm 		0.001"
0.025mm 		0.001"
0.025mm 		0.001"
0.025mm
Camshaft
Clearance 		0.001/0.0025"
0.025/0.064mm 		0.0005/0.003"
0.013/0.076mm 		0.0005/0.003"
0.013/0.076mm 		0.0005/0.003"
0.013/0.076mm 		0.001/0.0035"
0.025/0.089mm
Camshaft
End Float 		0.005/0.020"
0.127/0.508mm 		0.005/0.020"
0.127/0.508mm 		0.005/0.020"
0.127/0.508mm 		0.005/0.020"
0.127/0.508mm 		0.005/0.020"
0.127/0.508mm
Con Rod Big
End Max Dia 		0.9385"
23.837mm 		1.1885"
30.188mm 		1.1885"
30.188mm 		1.1885"
30.188mm 		1.5025"
38.164mm
Con Rod Big
End Clearance 		0.0035"
0.089mm 		0.0035"
0.089mm 		0.0035"
0.089mm 		0.0035"
0.089mm 		0.0035"
0.089mm
Con Rod Small
End Pin New Dia 		0.5630/0.5633"
14.30/14.308" 		0.6252/0.6255"
15.880/15.888mm 		0.6252/0.6255"
15.880/15.888mm 		0.6252/0.6255"
15.880/15.888mm 		0.85975"
21.838mm
Con Rod Small
End Clearance 		0.0007/0.0008"
0.018/0.020mm 		0.0006/0.0011"
0.015/0.028mm 		0.0006/0.0011"
0.015/0.028mm 		0.0006/0.0011"
0.015/0.028mm 		0.0003/0.0008"
0.008.0.020mm
Piston Thrust Face
Max Wear Dia 		2.359"
59.918mm 		2.9305"
74.435mm 		2.9305"
74.435mm 		2.9305"
74.435mm 		3.2445"
82.410mm
Piston Thrust Face *
-Bore Clearance 		0.0035/0.006"
0.089/0.152mm 		0.0035/0.006"
0.089/0.152mm 		0.0035/0.006"
0.089/0.152mm 		0.0035/0.006"
0.006/0.152mm 		0.0075/0.0085mm
Piston Ring Max
Side Clearance 		0.006"
0.152mm 		0.006"
0.152mm 		0.006"
0.152mm 		0.006"
0.152mm 		0.006"
0.152mm
Piston Ring New
Gap Clearance 		0.007/0.017"
0.178/0.432mm 		0.007/0/017"
0.178/0.432mm 		0.007/0/017"
0.178/0.432mm 		0.007/0/017"
0.178/0.432mm 		0.010/0.020"
0.254/0.508mm
Piston Ring Worn
Gap Clearance 		0.027"
0.686mm 		0.027"
0.686mm 		0.027"
0.686mm 		0.027"
0.686mm 		0.030"
0.762mm
Inlet Valve
Tappet Cold 		0.005/0.009"
0.127/0/229mm 		0.006/0.008"
0.152/0/503mm 		0.006/0.008"
0.152/0/503mm 		0.006/0.008"
0.152/0/503mm 		0.008/0.010"
0.203/0.254mm
Inlet Valve Max
Lift (Zero Tappet Cl.) 		0.1828"
5.321mm 		0.2778"
7.056mm 		0.2778"
7.056mm 		0.2778"
7.056mm 		0.324"
8.230mm
Inlet Valve Stem-
-Guide Clearance Max 		0.004"
0.102mm 		0.0045"
0.114mm 		0.0045"
0.114mm 		0.0045"
0.114mm 		0.0045"
0.114mm
Exhaust Valve
Tappet Cold 		0.011/0.015"
0.279/0.381mm 		0.015/0.017"
0.381/0.432mm 		0.015/0.017"
0.381/0.432mm 		0.015/0.017"
0.381/0.432mm 		0.017/0.020"
0.432/0.508mm
Exhaust Valve Max
Lift (Zero Tappet Cl.) 		0.1828"
4.643mm 		0.2542"
6.457mm 		0.2542"
6.457mm 		0.2542"
6.457mm 		0.324"
8.230mm
Exhaust Valve Stem **
-Guide Clearnce 		0.006"
0.152mm 		0.006"
0.152mm 		0.006"
0.152mm 		0.006"
0.152mm 		0.0065"
0.165mm
Cam Follower
Clearance in Guide 		0.0005/0.002"
0.013/0.051mm 		0.0005/0.002"
0.013/0.051mm 		0.0005/0.002"
0.013/0.051mm 		0.0005/0.002"
0.013/0.051mm 		0.0008/0.0023"
0.020/0.058mm
Spark Plug
Gap - Magneto 		0.025"
0.635mm 		0.025"
0.635mm 		0.025"
0.635mm 		0.025"
0.635mm 		0.025"
0.635mm
Spark Plug
Gap - Battery 		0.025"
0.635mm 		0.025"
0.635mm 		0.025"
0.635mm 		0.025"
0.635mm 		0.035"
0.889mm
Spark Plug
Gap - Gaseous Fuel 		0.018"
0.457mm 		0.018"
0.457mm 		0.018"
0.457mm 		0.018"
0.457mm 		0.018"
0.457mm
Spark Plug
Gap - Resistor Plug 		0.025"
0.635mm 		0.025"
0.635mm 		0.025"
0.635mm 		0.025"
0.635mm 		0.035"
0.889mm
Contact Breaker
Nominal Gap 		0.020"
0.508mm 		0.020"
0.508mm 		0.020"
0.508mm 		0.020"
0.508mm 		0.020"
0.508mm
Contact Breaker
Spark Run BTDC 		20 Degrees 20 Degrees 20 Degrees 20 Degrees 20 Degrees
Torque
Spark
Plug 		18-22 ft lbs
2.76 kg m
27.1 nm 		18-22 ft lbs
2.76 kg m
27.1 nm 		18-22 ft lbs
2.76 kg m
27.1 nm 		18-22 ft lbs
2.76 kg m
27.1 nm 		18-22 ft lbs
2.76 kg m
27.1 nm
Torque
Cylinder
Head 		15-20 ft lbs
2.415kg m
23.71 nm 		15-20 ft lbs
2.415kg m
23.71 nm 		15-20 ft lbs
2.415kg m
23.71 nm 		15-20 ft lbs
2.415kg m
23.71 nm 		25-30 ft lbs
3.795 kg m
37.26 nm
Torque
Connecting
Rod 		140 in lbs
1.61 kg m
15.81 n m 		200 in lbs
2.30 kg m
22.58 nm 		200 in lbs
2.30 kg m
22.58 nm 		200 in lbs
2.30 kg m
22.58 nm 		300 in lbs
3.45 kg m
33.87 nm
Torque *****
Flywheel
Nut/Screw 		40 -50 ft lbs
6.21 kg m
60.91 n m 		45-55 in lbs
6.90 kg m
67.75 nm 		45-55 in lbs
6.90 kg m
67.75 nm 		45-55 in lbs
6.90 kg m
67.75 nm 		50-60 in lbs
7.95 kg m
74.52 nm

NOTES:

* Measure just below oil ring and at right angles to piston pin
** Measure at top of guide with valve closed
***
****
***** 5/16" Screw - 250 in lbs / 2.88 kg m / 28.25 n m

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