Ski-Doo 2005 MACH Z, Руководство по ремонту, Страница: 99 / 343

Section 02 ENGINE
Subsection 09 (ENGINE MEASUREMENT)
Measuring in Crankcase
First, check deflection with crankshaft in
crankcase. If deflection exceeds the specified tol-
erance, recheck deflection using V-shaped blocks
to determine the defective part(s). See below.
Measuring on Bench
Once engine is disassembled, check crankshaft
deflection on V-shaped blocks.
If deflection
exceeds the specified tolerance, it can be worn
bearings or a bent crankshaft. Remove crankshaft
bearings and check deflection again on V-shaped
blocks to determine the defective part(s). See
measurement “A” in following illustration.
A01C0RD
1 A
TYPICAL
1. Measure at mid point between the key and the first thread
A. 3 mm (1/8 in)
NOTE: Crankshaft deflection cannot be correctly
measured on a lathe.
If the deflection exceeds the specified tolerance,
crankshaft should be repaired or replaced.
CONNECTING ROD BIG END
AXIAL PLAY
Using a feeler gauge, measure distance between
thrust washer and crankshaft counterweight. If
the distance exceeds specified tolerance, repair or
replace the crankshaft.
A01C0SA
TYPICAL
CHECKING CRANKSHAFT
ALIGNMENT
Remove both spark plugs.
Install a TDC gauge (P/N 414 104 700) in spark plug
hole on MAG side.
414 104 700
Bring MAG piston at top dead center.
Install the degree wheel (P/N 529 035 607) on
crankshaft end.
360 350 340
330
320
310
30
0
29
0
28
0
27
0
26
0
25
0
240
230
220
210
200
190 180
170
160
15
0
14
0
13
0
12
0
11
0
10
0
90
80
70
60
50
40
30
20 10
10
20
30
40
50
60
70
80
90
10
0
11
0
12
0
13
0
140
150
160
170
18 0 19
0
200
210
22
0
23
0
24
0
25
0
26
0
27
0
28
0
29
0
30
0
31
0
32
0
330
340
350 360
529 035 607
Scribe a mark on crankcase.
Install degree wheel so that 360° mark aligns with
the mark on crankcase. Do not rotate crankshaft.
80
mmr2005-119