SECTION 03 - CHASSIS PREPARATION
MMC2005-001_03A.FM
03-17
As mentioned earlier, the configuration of the shim stack will control most of the dampening of the shock.
There are several methods to tuning shim stacks. The first and most commonly used is to increase or
decrease the overall stiffness of the stack. This can be done by changing the number of large shims or
by increasing or decreasing their thickness.
The overall stiffness of the stack has been in-
creased by adding 7-30 mm
×
.203 mm shims.
This will result in firmer dampening at both low
and high piston speeds. Thicker shims will also re-
sult in firmer dampening but it is better to use
more thin shims than fewer thick shims. More thin
shims will provide better, smoother dampening
than a few thick shims. There is an equivalency
between thick and thin shims, though. The follow-
ing chart indicates how many thin shims are re-
quired to equal the stiffness of one thick shim.
(mm)
1
×
.152 = 2.4
×
.114
1
×
.203 = 2.3
×
.152
1
×
.254 = 2.0
×
.203
This means it will take 2.4
×
.114 mm shims to
have the same dampening as 1
×
.152 mm shim.
Obviously you can’t use a fraction of a shim so you
must find the lowest common denominator. For
2.4 it will be 5. For 2.3 it will be 10. The following
chart shows the most common possibilities.
(mm)
5
×
.152 = 12
×
.114
10
×
.152 = 24
×
.114
10
×
.203 = 23
×
.152
1
×
.254 = 2
×
.203
2
×
.254 = 4
×
.203
3
×
.254 = 6
×
.203
4
×
.254 = 8
×
.203
5
×
.254 = 10
×
.203
6
×
.254 = 12
×
.203
7
×
.254 = 14
×
.203
8
×
.254 = 16
×
.203
9
×
.254 = 18
×
.203
1 x .305 = 2 x .254
2 x .305 = 3 x .254
3 x .305 = 5 x .254
4 x .305 = 7 x .254
5 x .305 = 9 x .254
6 x .305 = 10 x .254
The diameter of the smaller shims that support the
large shims will also affect the dampening. A larg-
er support shim gives more support to the large
shim thus making it act stiffer. Conversely, a small-
er diameter support shim will allow the large shim
to bend more easily thus softening the dampen-
ing. The following graph shows the effect of dif-
ferent diameter support washers.
A99F05S
TOP OUT WASHER
TOP OUT WASHER
STIFFER
SOFTER
Qty.
Dia. (mm) Tickness
10
x
30
x
.203
1
x
18
x
.203
1
x
18
x
.203
1
x
16
x
.203
1
x
15
x
.203
Qty.
Dia. (mm) Tickness
3
x
30
x
.203
1
x
18
x
.203
1
x
18
x
.203
1
x
16
x
.203
1
x
15
x
.203
Содержание ski-doo MACH Z 1000 SDI
Страница 1: ...Mmc 2005 001 Racing FH8 Wed Sep 15 15 27 01 2004 Page 1 C M Y CM MY CY CMY K...
Страница 118: ...04 36 MMC2005 001_04A FM SECTION 04 SUSPENSION SC 3 SC 4 RAS SC IV REAR SUSPENSION 0...
Страница 124: ...04 42 MMC2005 001_04A FM SECTION 04 SUSPENSION SC 3 SC 4 RAS...
Страница 196: ...05 72 MMC2005 001_05A FM SECTION 05 ENGINE PREPARATION FUEL TANK AND FUEL PUMP All Models except SDI 2 4 3 1 A33C2VS...
Страница 289: ...SECTION 06 DRIVE SYSTEM MMC2005 001_06A FM 06 27 422 A01D3JA 417 222 562 427 A01D3KA 417 222 677...
Страница 473: ...SECTION 12 SERVICE TOOLS MMC2005 001_12A FM 12 29 N Scratch remover P N 861 774 800 APPLICATION All models...
Страница 476: ...MMC2005 001_13A FM 13 1 SECTION 13 ACCESSORIES TABLE OF CONTENTS 0 ACCESSORIES 13 02...
Страница 493: ...Mmc 2005 001 Racing FH8 Wed Sep 15 15 27 01 2004 Page 1 C M Y CM MY CY CMY K...