Disassembly Of Cylinder Block - TOHATSU MFS25 Service Manual

23) Disassembly of Cylinder Block

Remove thermostat cover bolt and the cover 1.
1.
Remove oil filter 2.
2.
Wipe off spilt oil completely.
Oil Filter Wrench :
P/N. 3AC-99090-0
3. Loosen crank case bolts in several steps in the reverse
sequence of order shown, and remove crank case.
Remove connecting rod bolts 3 and connecting rod cap 4,
4.
and then, crankshaft 5 and oil seal.
5. Remove bearings from cylinder block and crank case.
6. Remove connecting rods and piston assemblies from
cylinder block.
• Removed bearings should be arranged in the
order they are removed.
• Mark individual pistons with number a
corresponding to their cylinders.
• Connecting rods and caps should be arranged
as pairs in the order they are removed.
Removes parts should be arranged so that
they can be reassembled in their original
positions and orientations.
• Do not reuse piston pin clips. Be sure to
replace with new ones.
Remove piston pin clips 6 and piston pin, and then, piston.
7.
25/30 2006
~
16 1
6
6 piston pin clips
15 16
5 6
11
12
2
9
10
3
4
13
14
8
7
3
6
a
Do not reuse.
1
2
5
4
5
6
2
1
5-45