Figure 2 Crankcase
2 Dec 2018


Figure 2 Crankcase

70-9748 / E9748
Crankcase D.S.
Ref# 1   Fig.  2 Page 15 #7 (Qty:1)
 Crankcase D.S.


GS87
Breather disk
Ref# 2   Fig.  2 Page 15 #7 (Qty:1)
 Camshaft, inlet D.S.


70-2311 / E2311
Pin
Ref# 3   Fig.  2 Page 15 #7 (Qty:1)
 Breather disk locating pin, crankcase D.S.


70-2260 / E2260
Bush
Ref# 4   Fig.  2 Page 15 #7 (Qty:1)
 Camshaft, inlet D.S.


70-1516 / E1516
Bush
Ref# 5   Fig.  2 Page 15 #7 (Qty:1)
 Camshaft, exhaust D.S.


70-5976 / E5976
Chain tensioner abutment
Ref# 6   Fig.  2 Page 15 #7 (Qty:1)
 Primary chaincase


70-2724 / E2724
Pipe, metal
Ref# 7   Fig.  2 Page 15 #7 (Qty:1)
 Breather pipe, crankcase (beneath)


70-9749 / E9749
Crankcase T.S.
Ref# 8   Fig.  2 Page 15 #7 (Qty:1)
 Crankcase T.S.


70-1479 / E1479
Bush
Ref# 9   Fig.  2 Page 15 #7 (Qty:2)
 Camshaft, inlet and exhaust


70-4538 / E4538
Scavenge pipe
5/16" reinforced rubber
Ref# 10  Fig.  2 Page 15 #7
 Crankcase oil filter
 ¹ Reference only


70-6386 / E6386
Locating peg
Ref# 11  Fig.  2 Page 15 #7
 Oil pipes and junction block
 ¹ Reference only


57-0989 / T989
Hollow dowel
Ref# 12  Fig.  2 Page 15 #7 (Qty:2)
 Timing cover


57-0912 / T912
Locating peg
Dia:.07-.074" Length:.3135"(2).2585"/6.57mm(1)
Ref# 13  Fig.  2 Page 15 #7 (Qty:1)
 Layshaft thrust washer
 ¹ #7 calls for 1, 2 are required


57-1606 / T1606 TIMKEN M11121
Bearing, needle roller, layshaft high gear
Closed end needle roller
11/16" x 7/8" x 3/4"
Ref# 14  Fig.  2 Page 15 #7 (Qty:1)
 Gearbox casing
 ¹ Also shown as Ref.11/Fig.7


70-0375 / E375
Spindle
Ref# 15  Fig.  2 Page 15 #7 (Qty:1)
 Timing chest T.S., intermediate wheel


70-1532 / E1532
Hollow dowel
Ref# 16  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase D.S., forward cylinder stud 15/28


70-3716 / E3716
Hollow dowel
Ref# 17  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase halves, forward joint (screw 15/18)


21-1873 / S1873
Screw
UNC 1/4-20TPI X 13/16 U.H.
Ref# 18  Fig.  2 Page 15 #7 (Qty:2)
 Crankcase halves
 Orient: Fastens DS/TS crankcases
Through hollow dowel 15/17


14-1445
Stud
UNC/UNF 3/8-16TPI/24TPI X 4 1/2 O.A.
Ref# 19  Fig.  2 Page 15 #7 (Qty:1)
 Engine mount, beneath timing cover
 Torque: 20 LBS
 ¹ No 4 crankcase junction stud


60-4246 / S25-2
Washer, plain
3/8 x 3/4 x 1/16
Ref# 20  Fig.  2 Page 15 #7 (Qty:2)
 Engine mount stud 15/19


14-0303  (1 Spares)
Nut, plain
UNF 3/8-24TPI (Tool-9/16)
Ref# 21  Fig.  2 Page 15 #7 (Qty:2)
 Engine mount stud 15/19


70-8751 / E8751
Hollow dowel
Counter-bored with metering pin
Ref# 22  Fig.  2 Page 15 #7 (Qty:2)
 Tappet oil feed, crankcase T.S. forward
 Orient: Larger bore faces out
 ¹ #7 "... on the timing cover face", it's on the crankcase


70-9330 / E9330
Plug
UNC 5/16-18TPI
Ref# 23  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase oilway plug (below timing chest)


82-1880 / F1880
Washer, copper
5/16"
Ref# 24  Fig.  2 Page 15 #7 (Qty:1)
 Oilway plug 15/23, under crankcase T.S.


21-1871 / S1871
Tachometer drive plug
LEFT-HAND
Ref# 25  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase D.S. tach drive


70-8896 / E8896
Washer, fiber
15/32"
Ref# 26  Fig.  2 Page 15 #7 (Qty:1)
 Tachometer drive plug
Ref# 26  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase, timing hole plug


21-1863 / S1863
Oil pipe stud
UNC/UNF OR BSW/ 5/16-?TPI X 1 1/2 O.A.
Ref# 27  Fig.  2 Page 15 #7 (Qty:1)
 Junction block


21-1865 / S1865
Stud
UNC B:3/8-16TPI X 1 7/8 O.A.
3/16-7/32-24TPI X 1 3/4 O.A.
Ref# 28  Fig.  2 Page 15 #7 (Qty:8)
 Crankcase to cylinder block
 ¹ 16TPI to crankcase, 24TPI for nut


21-1872 / S1872
Plug
UNC 1/2-13TPI
Ref# 29  Fig.  2 Page 15 #7 (Qty:1)
 Timing hole plug (crankcase)


21-1870 / S1870
Bolt
UNC 5/16-18TPI X 2 1/2 U.H.
Ref# 30  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase D.S.


14-6220
Bolt
UNC 5/16-18TPI X 1 3/4 U.H.
Ref# 31  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase D.S.


21-1869 / S1869
Bolt
UNF 5/16-24TPI X 1 7/8 U.H.
Ref# 32  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase D.S.


70-4856 / E4856
Stud
BS 5/16-26TPI X 5 1/16 O.A.
Ref# 33  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase, forward
 Torque: 20 LBS
 ¹ No 3 crankcase junction stud


70-2888 / E2888
Stud
BS 5/16-26TPI X 3 7/8 O.A.
Ref# 34  Fig.  2 Page 15 #7 (Qty:2)
 Crankcase, forward
 Torque: 20 LBS
 ¹ No 2 crankcase junction stud


60-4247 / S25-3
Washer, plain
5/16 x 5/8 x 1/16 (.040)
Ref# 35  Fig.  2 Page 15 #7 (Qty:11)
 Crankcase D.S.
 ¹ Bolts 15/30-31-32 and ??


S1-51
Nut
BS 5/16-26TPI
Ref# 36  Fig.  2 Page 15 #7 (Qty:8)
 Crankcase joining studs


70-9336 / E9336
Drain plug and filter
BA (Tool-1/2BS or 7/16W)
Ref# 37  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase oil drain/filter
 ¹ Use 70-7310 (pushrod tube) o-ring instead of 70-5315 (TSB)


70-5315 / E5315
Washer, copper
Ref# 38  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase filter


70-5375 / E5375
Breather extension pipe
Ref# 39  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase (bottom)


57-3851 / T3851
Drain plug (with level tube)
BA (Tool-11/16-2"extension)
Ref# 40  Fig.  2 Page 15 #7 (Qty:1)
 Gearbox UN


57-1257 / T1257
Washer, fiber
15/32"
Ref# 41  Fig.  2 Page 15 #7 (Qty:1)
 Gearbox drain/level plug


21-0543 / S543
Plug
UNF 1/4-28TPI x 5/16 (Tool-7/16)
Ref# 42  Fig.  2 Page 15 #7 (Qty:1)
 Gearbox level plug


70-2441 / E2441
Washer, copper
Copper 1/4" I.D. x 7/16" x 1/32"
Ref# 43  Fig.  2 Page 15 #7 (Qty:1)
 Gearbox drain/level plug 15/42
 ¹ Same as 33/29 for chaincase level plug


70-6347 / E6347
Drain and adjuster plug
BSF 7/16"
Ref# 44  Fig.  2 Page 15 #7 (Qty:1)
 Primary chaincase
 ¹ #7 p.33/ref.30 references this part as T2559


57-1738 / T1738
Washer, fiber
7/16 x 11/16 x 3/32
Ref# 45  Fig.  2 Page 15 #7 (Qty:1)
 Primary chaincase drain/adjuster plug
 ¹ Also referenced as Ref 31 Figure 11


57-1920 / T1920
Plug
Ref# 46  Fig.  2 Page 15 #7 (Qty:1)
 Gearbox blanking (rear)


57-2166 / T2166
Cap, inspection
Ref# 47  Fig.  2 Page 15 #7 (Qty:1)
 Primary chain case
Ref# 47  Fig.  2 Page 15 #7 (Qty:1)
 Primary chaincase filler/inspection port


70-8782 / E8782
O-ring
Ref# 48  Fig.  2 Page 15 #7 (Qty:2)
 Primary chaincase filler plug


14-6242
Bolt
UNC 3/8-16TPI X 4 U.H.
Ref# 49  Fig.  2 Page 15 #7 (Qty:1)
 Lower engine mount
 Torque: 13 LBS
 ¹ Crankcase junction bolt


70-5963 / E5963
Stud
BS 5/16-26TPI X 4 3/4 O.A.
Ref# 50  Fig.  2 Page 15 #7 (Qty:1)
 Crankcase, front
 Torque: 20 LBS
 ¹ No 1 crankcase junction stud


70-8892 / E8892
Protection blade
Ref# 51  Fig.  2 Page 15 #7 (Qty:1)
 Primary chaincase


14-1301
Nut, locking
UNF 1/4-28TPI thin Cleveloc
Ref# 52  Fig.  2 Page 15 #7 (Qty:1)
 Protection blade


70-7573 / E7573
Rubber plug
Ref# 53  Fig.  2 Page 15 #7 (Qty:1)
 Protection blade hole



EOF