Ski-Doo FORMULA III, Руководство по ремонту

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Section 04 ENGINE
Sub-Section 04 (LEAK TEST AND ENGINE DIMENSION MEASUREMENT)
04-04-9
1. Bearing thickness
c. Measure distance between bearing shoulders
on crankshaft (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 speci-
fication.
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
A. M
1
+ M
2
+ M
3
B. M
4
+ M
5
+ M
6
+ M
7
+ M
8
377, 443, 454, 494, 503, 582, 583, 670 and 779
Engine Types
End-play is not adjustable but it should be be-
tween 0.10 – 0.30 mm (.004 – .012 in).
CRANKCASE / ROTARY VALVE GAP
First Method
To measure this gap use a feeler gauge inserted
between rotary valve and upper crankcase with
the rotary valve cover in place
without its O-ring .
Check the most surface as possible. Follow the
same procedure with the lower crankcase.
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1
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ENGINE TYPE MINIMUM MAXIMUM
Liquid cooled
engines
0.27 mm
(0.011 in)
0.40 mm
(0.016 in)
A
M
3
M
2
M
1
3 2
1
M
4
M
5
M
6
M
7
M
8
B
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