p30 (11)
rd support rod nut (located back of inner choin gucrrd) and remove support rod.
26. Disconnect the foliowing wires: Circuit breaker to coil wire from coil rear terminal, generator cable wires from generator and relay terminals, and oil pressure signal light wire from pressure switch terminal.
27. Remove all engine mounting bolts, excepting the one under generator; this bolt cannot be removed without removing generator; merely push it up to elear frame engine lug.
28. Remove engine base from right side of frame.
Removing Assembled Engine From Chassis
for Complete Overhaul
When it is obvious that engine needs a complete overhaul rather than possibly only an upper end job, proceed as follows:
1. Disconnect battery ground connection.
2. Disconnect brake front rod from beli crank (right side of rear footboard support rod) and remove right footboard, sidebar and brake pedał assembly.
3: Lower rear end of bottom skid piąte. In some cases this reąuires removing only the two rear mounting bolts; in other cases it will be found that there is also a U-clamp around front frame tubę that must be freed.
4. Remove muffler rear hanger frame bolt and remove entire muffler and exhaust pipę assembly as a unit.
5. Remove oil pipes. Install nipple cap (manufac-turer's part number 3583-15) on oil tank feed pipę nipple to prevent oil from running out.
6. Disconnect spark control wire at Circuit breaker and free cylinder base control clamp.
7. Disconnect brake rear rod from beli crank.
8. Disconnect red wire and black wire from front end of relay; also green wire from generator terminal.
9. Remove spark plugs to avoid damaging; use manufacturer's wrench number 11929-40.
10. Remove cylinder head bracket to frame lug bolt; this also frees front spark pług cable clamp. Pay particular attention to shim washers between cylinder head bracket and frame lug; these will have to be refitted when re-installing engine.
11. Disconnect shifter lever bottom bolt.
12. Shut off gasoline; remove gasoline pipę.
13. Disconnect throttle control wire at carburetor. Disconnect air intake hose connection fitting from carburetor (4 screws) and leave attached to hose.
14. Disconnect clutch release cable at footpedal by removing cotter pin and washer. Then remove left footboard, sidebar and clutch pedał assembly.
15. Remove outer front chain guard. If motorcycle is eąuipped with oil bath air cleaner, it may be necessary to remove oil cup from air cleaner before chain guard can be removed.
16. Remove sprocket nut (right hand thread) using manufacturer s wrench number 12731-29. It will be necessary to strike wrench with hammer to loosen nut. Remove engine sprocket by giving fiat surface near outer edge a light but sharp rap with a hammer, being careful not to strike teeth.
17. Remove two screws that hołd inner chain guard to crankcase.
18. With \Ą" open end wrench, remove rear footboard support rod nut (located back of inner chain guard) and remove support rod.
19. Disconnect Circuit breaker to coil wire from coil terminal and oil pressure signal light wire from pressure switch terminal.
20. Remove all engine mounting bolts, excepting the one under generator; this bolt cannot be removed without removing generator; merely push it up far enough to elear frame engine lug.
21. Remove engine from right side of frame.
Disassembling Engine
(AFTER REMOYING FROM CHASSIS COMPLETELY ASSEMBLED)
1. Remove upper end parts as outlined under "Disassembling Engine for Top Overhaul Only," Page 29.
2. fiemove pistons. See "Piston and Pin," Page 43.
3. Remove generator as outlined under "Remov-ing Generator," Page 48.
4. Remove oil feed pump. Oil pump is secured by one hexagon-head screw and three nuts. Two of the nuts are extra long to provide wrench clearance and their location should be noted so they will be put back where they belong. After removing screw and nuts, pump can be pulled off.
Unless a new gasket is available, be very careful not to damage or break the old one. This is a very special gasket as concems both thickness and holes for oil channels. It is not advisable to attempt to replace it with a "home madę" gasket. Leaving out one hole or getting one in the wrong location is enough to put the entire oiling system out of order. When a new gasket is used, it should be one ob-tcrined from the manufacturer.
5. Remove Circuit breaker and timer assembly from timing gear case cover. See Illustration 20. To remove, take off Circuit breaker cover (2) and unlatch cover retainer (1) ends from holes in timer head (4). Head and also head seating tension (ground) spring (3) undemeath base are now free and head can be lifted off, exposing two screws (5) that secure base to gear case cover. After removing these screws and lock washers (6), base (7) with shaft and drive gear can be lifted out of cover. Be careful that gasket (8) and head seating tension (ground) spring are not misplaced.
6. Remove gear case cover. Take out all remain-ing timing gear case cover screws and cover is then free to be removed. Cover is located on dowel pins which fit rather snugly and it must be worked off these pins carefully to avoid damage to cover and joint faces. Do not pry off with screwdriver inserted between joint faces. Use a hammer and a błock of wood and tap lightly at the ends where the cover projects beyond the gear case.
The thin Steel shim washers assembled on outer ends of front cylinder cam gears may come off with the cover; be careful that they are not lost. Be careful also that cover gasket is not damaged, as this gasket, like the oil feed pump gasket, is very special and should not be replaced with other than a gasket obtained from the manufacturer.
7. Remove scavenger pump and crankcase breather valve. Scavenger pump is secured under-neath gear case with four studs and nuts. Remove nuts and pump can then be pulled off the studs.
30
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