Specifications

9
6
NOTE: SPECIFICATION TABLES BEGIN ON PAGE 8 OF THIS SECTION.
3. Place piston assembly (5) and compressor upside
down on bench and push piston down until head of
piston is even with edge of compressor (6),
Fig. 13.
4. Tighten compressor with wrench (7) until piston
cannot be turned in compressor.
5. Then loosen compressor until piston can be turned
with slight resistance.
Do not attempt to install piston and ring assembly
without ring compressor.
Install Piston Assembly
(Without Notch On Head)
1. Place connecting rod and piston assembly with
compressed rings into cylinder bore (8), Fig. 13.
2. Position rod so correct side is facing cam gear (A).
Turn crankshaft until crankpin is at top dead
center.
(With Notch On Head)
1. Place rod and piston assembly with compressed
rings into cylinder bore with notch on piston facing
magneto side of engine.
2. Turn crankshaft until crankpin is at top dead
center.
(Remaining Steps For Both Types)
3. Push piston down by hand until rod rests on
crankpin.
4. Oil crankpin and install rod cap with match marks
(9) or flats (12) aligned, Fig. 14.
5. Place shop rag over piston and ring compressor to
protect hands.
6. Assemble connecting rod bolt, rod bolt lock (10,
when used), and dipper (11, when used).
Typical styles of locks and dippers are shown in
Figures 14 – 18.
Fig. 14, Aluminum Model Series 60000
Fig. 15, Aluminum Model Series 80000, 111000,
112000, 120000, 190000, 220000, 250000
Fig. 16, Aluminum Model Series 100200, 130000,
170000
Fig. 17, Early Cast Iron Model Series 230000
Fig. 18, Cast Iron Model Series 230000, 240000,
300000, 320000
Fig. 13
6
7
8
5
A
Fig. 14
A
A
A
A
12
10
9
9
9
9
9
10
10
10
10
11
11
11
11
12
Fig. 15 Fig. 16
Fig. 17 Fig. 18