Arctic Cat M 8000, Service Manual

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36
Engine
 NOTE: Whenever a part is worn excessively,
cracked, or damaged in any way, replacement is nec-
essary.
Engine Removing/Installing
- 4000
This engine sub-section has been organized to show a
progression for the removing/installing of the Arctic Cat
4000 engine. For consistency purposes, this sub-section
shows a complete and thorough progression; however,
for efficiency it may be preferable to remove only those
components needing to be addressed. Also, some compo-
nents may vary from model to model. The technician
should use discretion and sound judgment.
SPECIAL TOOLS
A number of special tools must be available to the techni-
cian when performing service procedures in this engine
section.
 NOTE: Special tools are available from the Arctic
Cat Service Parts Department.
Removing
 NOTE: For assembling purposes, note cable tie
locations securing the harness and cables to the chas-
sis.
 NOTE: Prior to removing the engine, disconnect the
hood harness and remove the side access panels; then
remove the screws securing the hood to the chassis.
0746-793A
1. Carefully remove the exhaust temperature sensor
from the expansion chamber.
2. Remove all springs securing the expansion chamber
and resonator; then remove the expansion chamber
and resonator.
3. Remove the cap screw from the driven clutch and
slide the driven clutch (along with the drive belt) off
the driven shaft. Account for alignment washers.
4. Using Drive Clutch Bolt Tool, remove the torx-head
screw and high-collar washer securing the drive
clutch to the crankshaft.
5. Using Drive Clutch Puller and Drive Clutch Spanner
Wrench, tighten the puller. Remove the drive clutch.
 NOTE: If the drive clutch will not release, sharply
strike the head of the puller. Repeat this step until the
clutch releases.
6. Remove the two screws (A) securing the heat shield
to the chassis; then remove the heat shield from the
two front locating pins (B) and remove the heat
shield.
XM250A
7. Disconnect the ECM; then remove the screws secur-
ing the right- and left-side fascia panels to the chas-
sis. Remove the panels and ECM as an assembly.
Description p/n
Drive Clutch Bolt Tool 0644-281
Drive Clutch Puller 0744-062
Drive Clutch Spanner Wrench 0644-136
Hood Harness Extension 1686-659
CAUTION
Never attempt to substitute any other drive clutch puller
for the recommended puller or severe clutch or crank-
shaft damage will occur.