Diagnosis - Can-Am Renegade 570 2016 Service Manual

Subsection 08 (TOP END)
ENGINE REQUIRED TOOL
TDC DIAL INDICATOR
All
(P/N 414 104 700)
DIAL INDICATOR
850 and
ADAPTER (P/N 529
1000R
036 159)
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1. TDC dial indicator
NOTE: If a dial gauge is not available, use a screw-
driver or another similarly suitable tool.
NOTICE
Do not scratch or damage pis-
ton/cylinder surface.
NOTE: At ignition TDC the marks on the camshaft
timing gear have to be parallel to cylinder head
base as per following illustration.
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1. Marks on camshaft timing gear
2. Cylinder head base
Leak Test
1. Install the gauge adapter in the spark plug hole.
6
REQUIRED TOOL
ENGINE LEAK DOWN TEST
KIT (P/N 529 035 661)
2. Connect to an adequate air supply.
3. Set needle of measuring gauge to zero.
NOTE: All testers have specific instructions on
gauge operation and required pressure.
4. Supply combustion chamber with air pressure.
5. Note the amount or percentage of leakage (de-
pending on tester).
LEAKAGE
PERCENTAGE
0% to 15%
16% to 25%
26% to 40%
41% and higher
NOTE: To make sure there is no false reading due
to a valve not being perfectly seated, tap each
valve adjustment screw (on the rocker arm) using
a soft hammer.

Diagnosis

Listen for air leaks.
– Air escaping in intake port/throttle body means
leaking intake valve(s).
– Air escaping in exhaust port means leaking ex-
haust valve(s).
– Air bubbles in the coolant (radiator) means leak-
ing cylinder head gasket.
– Air/coolant escaping from cylinder/head means
damaged gasket(s) and/or loosened screws.
– Air escaping into crankcase area means exces-
sively worn cylinder and/or broken piston rings.
– Air/oil escaping from crankcase means dam-
aged gasket and/or loosened screws (refer to
BOTTOM END
subsection).
NOTE: For all checkpoints mentioned above, see
appropriate engine section to diagnose and repair
the engine.
Reassembly
Reverse the preparation procedure. Ensure to
respect torque values and use of appropriate
products/lubricants. Refer to exploded views in
other subsections of this manual as required.
ENGINE
CONDITION
Excellent condition
Good condition
Fair condition; reduced
engine performance
Poor condition, diagnose
and repair engine
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