Cub Cadet 7360SS User Manual

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4. ENGINE
4-1. DETERMINING WHEN TO
OVERHAUL THE ENGINE
(1)DETERMINING WHEN TO
OVERHAUL THE ENGINE
Generally, when to overhaul the engine is to be
determined by taking into account a drop in
compression pressure as well as an increase in
lube oil consumption and excessive blowby gases.
Lower power or loss of power, an increase in fuel
consumption, a drop in lube oil pressure, hard
starting and excessive abnormal noise are also
troubles. These troubles,however,are not always
the result of low compression pressure and give
no valid reason for overhauling the engine.
the engine develops troubles of widely different
varieties when the compression pressure drops
in it. Following are the typical troubles caused
by the compression pressure failure:
(1)Low power or loss of power
(2)Increase in fuel consumption
(3)Increase in lube oil consumption
(4)Excessive blowby through breather due
to worn cylinders, pistons, etc.
(5)Excessive blowby due to poor seating of
worn inlet and exhaust valves
(6)Hard starting or failure to start
(7)Excessive engine noise
In most cases, these troubles occur concurrently.
Some of them are directly caused by low
compression pressure, but others are not.
Among the troubles listed above, (2)and(6)
are caused by a fuel injection pump
improperly adjusted with respect to injection
quantity or injection timing, worn injection pump
plungers, faulty injection nozzles, or poor care
of the battery, starter and alternator.
The trouble to be taken into account as the most
valid reason for overhauling the engine is(4): in
actually determining when to overhaul the
engine, it is reasonable to take this trouble into
account in conjunction with the other ones
(2) COMPRESSION PRESSURE
MEASUREMENT
1. Inspection
-Check to make sure-
(1)The crankcase oil level is correct, and the
air cleaner, starter and battery are all in
normal condition.
(2)The engine is at the normal operating
temperature.
2. Measurement
(1)Move the control lever to a position for
shutting off fuel supply.
(2)Remove all glow plugs from the engine.
Install the compression gauge and adaptor
(ST332270)combination to a cylinder on
which the compression pressure is to be
measured.
(3)Turn the engine with the starter and read
the gauge pressure at the instant the gauge
pointer comes to stop.
(4)If the gauge reading is below the limit,
overhaul the engine.

Cub Cadet 7360SS Specifications

General

Brand	Cub Cadet
Model	7360SS
Category	Tractor
Language	English