BRP Cam-am Outlander 6x6 DPS 2015 Manual page 112

Section 02 ENGINE, CVT AND GEARBOX
Subsection 09 (TOP END (650))
REQUIRED TOOL
TDC DIAL INDICATOR
(P/N 414 104 700)
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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.
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
Install gauge adapter into spark plug hole.
REQUIRED TOOL
ENGINE LEAK DOWN TEST
KIT (P/N 529 035 661)
Connect to adequate air supply.
Set needle of measuring gauge to zero.
158
NOTE: All testers have specific instructions on
gauge operation and required pressure.
Install gauge adapter into previously cleaned spark
plug hole.
Supply combustion chamber with air pressure.
1
2
V07C0KA
TYPICAL
1. Leak tester
2. Air supply hose
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 valves not 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.
ENGINE
CONDITION
Excellent condition
Good condition
Fair condition; reduced
engine performance
Poor condition, diagnose
and repair engine
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