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Home >> Subaru >> 2008 >> Tribeca Base >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Engine Ignition System - Ignition >> Spark Plug >> Installation >> LH Side
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LH Side

Install in the reverse order of removal.

Tightening torque: 

Spark plug 

21 N.m (2.1 kgf-m, 15.5 ft-lb) 

Ignition coil 

16 N.m (1.6 kgf-m, 11.8 ft-lb) 

NOTE: The tightening torque described above should be applied to only new spark plugs without oil on their threads. In case their threads are lubricated, the torque should be reduced by approx. 1/3 of the specified torque in order to avoid over-stressing.