Club Car Precedent 2014, Руководство по техническому обслуживанию и ремонту

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AS26 FE 350 ENGINE Cylinder Head
21
Spark Plug Installation
NOTE: Before installing the plug, check the condition of the threads in the cylinder head. Soften deposits in cylinder
head threads with penetrating oil and clean the threads with a tap if necessary.
Use a high temperature, anti-seize lubricant on the threads of the spark plug to reduce friction when installing
a new plug, and reduce “gauling” and thread seizing for future replacements.
Install the spark plug by threading it in until finger tight, then tighten the spark plug to 20 ft·lb (27 N·m).
CYLINDER HEAD
See General Warnings on page 1-2.
GENERAL INFORMATION
Test cylinder compression using a standard compression tester. Low compression would normally indicate a problem in
the cylinder assembly such as defective rings, gaskets, etc. At a cranking speed of 550 to 600 RPM, the compression
should be 156 to 185 psig (1075.6 to 1275.5 kPa).
See Engines and Transaxles Manual for inspection and repair.
BREATHER VALVE (REED VALVE)
General Information
The function of the breather is to create a vacuum in the crankcase which prevents oil from being forced out of the
engine through the piston rings, oil seals or gaskets. The breather has a reed valve which limits the direction of air flow
caused by the piston moving up and down. Air can flow out of the crankcase, but the one-way reed valve blocks return
flow and therefore maintains a vacuum in the crankcase.
Oil laden air in the crankcase passes through the reed valve and expands into the rocker chamber. In the rocker
chamber most oil separates from the air and drains back to the crankcase. The air passes through a tube and vents to
the intake manifold.
See Engines and Transaxles Manual for inspection and repair.
VALVE CLEARANCE CHECK AND ADJUSTMENT
1. Check and adjust clearance when the engine is cold.
2. Turn the crankshaft until the piston is at the top of the compression stroke.
3. Using a feeler gauge (1), measure the clearance (2) between the adjuster screw (3) and the top of the valve stem
(4)
(Figure 21-2, Page 21-4 and Figure 21-3, Page 21-4)
4. If necessary, loosen the lock nut (3) and turn the adjuster (6) up or down to adjust the clearance to 0.005 inch
(0.127 mm) for both intake and exhaust
(Figure 21-2, Page 21-4)
5. While keeping the adjuster from turning with the screw holder (5) (P/N 1016413), tighten the lock nut (3) to
90 in·lb (10 N·m).
6. Recheck the clearance on both valves.
2014 Precedent ® Golf Car Maintenance and Service Manual Page 21-3