Ski-Doo FORMULA S 1997, Shop Manual

Page: 86 / 926

Section 03 ENGINE
Sub-Section 04 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
03-04-9
MEASURING M
1
AND M
2
1. Bearing seat
b. Measure the thickness of each bearing (M
4
and
M
5
).
MEASURING M
4
AND M
5
1. Bearing thickness
c. Measure distance between bearing shoulders
on crankshaft (M
6
).
MEASURING M
6
d. Measure the distance ring (M
7
) and adjustment
shims thickness (M
8
). Add these measure-
ments to obtain dimension B.
e. From dimension A, subtract dimension B.
The result is the actual crankshaft end-play that
must be within specification.
If the result is over specification, add adjustment
shim(s) to reach this specification.
If the result is under specification, remove adjust-
ment shim(s) to reach this specification.
To Summarize
A = M
1
+ M
2
+ M
3
B = M
4
+ M
5
+ M
6
+ M
7
+ M
8
A – B = Actual end-play that must be within spec-
ification.
M
8
is the dimension that must be adjusted to ob-
tain the specified crankshaft end-play.
1. End-play is adjusted with shims
2. PTO
3. MAG
377, 443, 503 Engine Types
End-play is not adjustable but it should be be-
tween 0.10 – 0.30 mm (.004 – .012 in).
A01C0TA
1
A01C0UA
1
A02C0LA
A
M
3
M
2
M
1
3 2
1
M
4
M
5
M
6
M
7
M
8
B
A01C0WA