User Guide

CH20-64500 Page 6 of 30
Crankcase
Ref # Part Number Qty Description
1 Crankcase (Service with Short Block or Miniblock. Refer to
Selection Guide TP-2470)
1
3 12 380 03 Pin, dowel locating6
4 52 139 09-S Plug, cup1
5 24 032 01-S Seal, oil front1
6 24 144 01-S Shaft, governor cross1
7 X-25-102-S Washer, plain 1/4"1
8 12 032 01-S Seal, governor cross shaft1
9 X-25-63-S Washer, plain 1/4"1
10 12 380 04-S Pin, hitch1
13 24 067 01 Connecting Rod (Std.) Replaced by 24-067-052
13 24 067 02 Connecting Rod (.25) To be replaced by 24-067-062
14 24 874 01-S Piston w/Ring Set (Std.) Includes 15,162
14 24 874 02-S Piston w/Ring Set (.25) Includes 15,162
14 24 874 03-S Piston w/Ring Set (.50) Includes 15,162
15 24 018 01-S Retainer, piston pin4
16 24 108 01-S Ring Set (Std.)2
16 24 108 02-S Ring Set (.25)2
16 24 108 03-S Ring Set (.50)2
17 12 422 07-S Shim, camshaft (A.R.) (white) (.02725 - .02875)1
17 12 422 08-S Shim, camshaft (A.R.) (blue) (.02925 - .03075)1
17 12 422 09-S Shim, camshaft (A.R.) (red) (.03125 - .03275)1
17 12 422 10-S Shim, camshaft (yellow) (.03325 - .03475)1
17 12 422 11-S Shim, camshaft (A.R.) (green) (.03525 - .03675)1
17 12 422 12-S Shim, camshaft (A.R.) (gray) (.03725 - .03875)1
17 12 422 13-S Shim, camshaft (A.R.) (black) (.03925 - .04075)1
18 24 012 05 Camshaft1
28 52 139 02-S Plug, hex. hd. 3/8" N.P.T.F.2