a For cylinder.
b For cylinder exhaust flange.
c For rotary valve shaft.
d For ball bearing, rotary valve shaft.
e For oil seal rotary valve shaft (without oil pump), intake side.
f For oil seal rotary valve shaft (with oil pump), intake side.
g For inner oil seal rotary valve shaft, water pump side.
h To press in the rotary seal.
i For rotary valve timing.
j To pull out the rotary seal - the inner steel bushing of the rotary seal has to be removed before disassembly.
k For fitting of piston pin circlip (monohook-circlip).
l for outer oil seal rotary valve shaft, waterpump side.