Cylinder Compression - Honda Gold Wing GL1200D Shop Manual

~HONDA
~
GL 12000' GL1200A
Apply molybdenum disulfide grease to the rod
cap bearings.
Install the caps on the correct crankpins by making
reference to the mark on the side of the rod.
Tighten the cap nuts in a crisscross pattern in 2~3
steps.
TORQUE: 30-34 N·m (3.0-3.4 kg-m, 22-25 ft-Ibl
Install the mainshaft in the right engine case
(Page 10-21).
Assemble the engine case (Page 10·24).
CYLINDER COMPRESSION
Warm up the engine.
Stop the engine, then disconnect the spark plug
caps and remove the spark plugs,
Insert the compression gauge.
Open the throttle all the way and crank the engine
with the starter motor.
NOTE:
Crank the engine until the gauge reading
stops rising. The maximum reading is usually
reached within 4-7 seconds.
COMPRESSION PRESSURE:
1,100- 1,500 kPa (11-15 kg/em
2
,
156-213 psi)
If compression is low, che-:k for the following:
Improper valve clearance
Leaky valves
Leaking cylinder head gasket
Worn piston/ring/cylinder
If compression is high, it indicates that carbon
deposits have accumulated on the combustion
chamber and/or the piston crown.
CRANKSHAFT/PISTON
~
COMPRESSION GAUGE
11 -1 7