Checking and Changing Spark Plugs (Cont'd) / Checking Ignition Wires / Checking P.C.V. System
MA-24spec tableSpark plug specs vary by engine: GA16DS vs GA13DS/GA14DS/GA16DE. Hot type not applicable (—) for GA13DS/GA14DS/GA16DE.
Checking and Changing Spark Plugs (Cont'd)
- 2Remove spark plugs with spark plug wrench.
SMA294A - 3Clean plugs in sand blast cleaner.
- 4Check insulator for cracks or chips, gasket for damage or deterioration and electrode for wear and burning. If they are excessively worn away, replace with new spark plugs.
- 5Check spark plug gap.
SMA476 - 6Install spark plugs. Reconnect ignition wires according to nos. indicated on them.
Spark plug
Standard type
GA16DSBKR6E
GA13DS, GA14DS & GA16DEBKR5E
Hot type
GA16DSBKR5E
GA13DS, GA14DS & GA16DE—
Cold type
GA16DSBKR7E
GA13DS, GA14DS & GA16DEBKR6E, BKR7E
| Specification | Value |
|---|---|
| Gap(0.031 - 0.035 in) | 0.8 - 0.9mm |
| Spark plug | 20 - 29N·m |
Gap(0.031 - 0.035 in)
0.8 - 0.9mm
Spark plug
20 - 29N·m
Checking Ignition Wires
- 1Inspect wires for cracks, damage, burned terminals and for improper fit.
- 2Measure the resistance of wires and check for intermittent breaks.
SMA015A
| Specification | Value |
|---|---|
| Resistance(2.93 - 6.83 kΩ/ft) | 9.6 - 22.4kΩ/m |
Resistance(2.93 - 6.83 kΩ/ft)
9.6 - 22.4kΩ/m
If it exceeds the limit, replace the ignition wire with a new one.
Checking Positive Crankcase Ventilation (P.C.V.) System
CHECKING P.C.V. VALVE
With engine running at idle, remove ventilation hose from P.C.V. valve; if valve is working properly, a hissing noise will be heard as air passes through it and a strong vacuum should be felt immediately when a finger is placed over valve inlet.