Engine Specifications Chart - MTD P90 series Shop Manual

Engine specifications chart

Specification
Bore
Cylindricity
Cylinder taper
Displacement
Crankshaft journal OD (flywheel end)
Crankshaft journal OD (flywheel end)
Crank pin diameter
Connecting rod max. ID (crank side)
Connecting rod to crank pin running clear-
ance
Connecting rod to crank pin side clear-
ance
Crankshaft run out
Crankshaft end play
Crankshaft bearing cavity (cylinder block)
Crankshaft bearing ID (sump)
Cam shaft OD (cylinder block)
Cam shaft OD (sump side)
Cam shaft bearing ID (cylinder block)
Cam shaft bearing ID (sump)
Intake lobe overall height
Exhaust lobe overall height
Balance shaft OD (cylinder block)
Balance shaft OD (sump)
Balance shaft bearing cavity
(cylinder block)
Balance shaft bearing ID (sump)
Crankshaft, piston and connecting rod
Minimum
in mm
3.544" 90.01 3.544"
0.000" 0.000 0.000"
0.000" 0.000 0.000"
25.6 cu. in (420 cc)
1.375" 34.94 1.377"
1.377" 34.98 1.378"
1.417" 35.98 1.417"
1.418" 36.02 1.418"
0.001" 0.03 0.002"
0.122" 3.10 0.157"
0.000" 0.00 0.001"
0.004" 0.10 0.018"
2.835" 72.00 2.835"
1.379" 35.03 1.380"
0.636" 16.17 0.637"
0.636" 16.17 0.637"
0.638" 16.20 0.639"
0.638" 16.20 0.639"
0.768" 19.51 0.774"
0.748" 18.99 0.754"
0.589" 14.97 0.590"
0.589" 14.97 0.590"
1.376" 34.96 1.377"
0.589" 14.97 0.590"
Maximum Service Limit
in mm in
90.02 3.553"
0.008 0.000"
0.000 0.000"
34.98 1.369"
34.99 1.370"
35.99 1.414"
36.03 1.420"
0.05 0.003"
4.00 0.300"
0.03 0.001"
0.45 0.018"
72.02 2.861"
35.06 1.393"
16.18 0.633"
16.18 0.633"
16.22 0.640"
16.22 0.640"
19.67 0.761
19.15 0.741"
14.98 0.587"
14.98 0.587"
34.99 1.377"
14.98 0.587"
mm
90.25
0.008
0.000
34.77
34.81
35.91
36.07
0.08
7.62
0.03
0.45
72.67
35.37
16.09
16.09
16.25
16.25
19.33
18.82
14.90
14.90
34.99
14.90
101