Rotax 277, 277 Rotax engine manual disassembly instructions.

Rotax 277 splitting the crankcase

Rotax 277 Splitting The Crankcase

Dismount, crankcase and remove crankshaft. Remove the 5 hex. screws with socket wrench 13 mm.
Push crankshaft out of crankcase half, p.t.o. side, with a puller.

Procedure:
Screw puller and puller plate together and fix them on crankcase,  p.t.o. side (2 hex. screws M8 x 25).

Attention: Use protection mushroom 876 552.

Then push crankshaft out of the crankcase by turning the puller screw to the right with wrench 22 mm (see ill. no. 4).

Take crankcase gaskets carefully off.

After removing the crankshaft from the crankcase, p.t.o. side, remove puller with plate. The puller itself need not be screwed off the plate. The puller with plate is then placed on crank- case, mag. side, and is fixed by 2 screws M8 x 100. Use protection mushroom 876 557.

Rotax 277 crankshaft removal from crankcase

Rotax 277 Crankshaft Removal From Crankcase

ATTENTION:

To avoid damage to the crankcase sealing surface, shims have to be used by all means and the nuts have to be tightened by hand 
(see ill. no. 5).

Tools:

puller plate 876 705 
puller assy. 876 296
2 cyl. screws M8 x 100 
2 washers 8.4 mm 
2 hex. nuts M8 
protection mushroom 876 552 protection mushroom 876 557

Rotax 277 crankshaft bearing removal

Rotax 277 Crankshaft Bearing Removal

Removing of ball bearing from crankshaft
see ill. #6.

Put ring halves for bearing 6306 over ball bearing.
Put outer ring over ring halves 276 020.
Use protection mushroom 876 552 or 876 557.

Fix puller by 2 cyl. screws M8 x 40 to the ring halves. Pull off ball bearing by burning the puller screw to the right.

Repeat procedure for ball bearing 
6206 with ring halves 977 470.