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Home >> Acura >> 2020 >> RDX Base >> Repair and Diagnosis >> Engine Performance >> Ignition System >> Engine Electrical Service Specifications >> Engine Electrical Service Specifications
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Engine Electrical Service Specifications

Item  Measurement  Qualification  Standard or New  Service Limit 
Ignition coil Firing order - 1-3-4-2
Spark plug Gap - 0.70-0.75 mm (0.0276-0.0295 in) -
Ignition timing At idle Check the red mark In N or P 2+/-2 deg. ATDC (conversion value by HDS: -2+/-2 deg.)
Drive belt Tension - Auto-tensioner
Alternator Brush length - 10.5 mm (0.413 in) 1.5 mm (0.059 in)
Starter Commutator mica depth - 0.40-0.50 mm (0.0157-0.0197 in) 0.15 mm (0.0059 in)
Commutator runout - 0.02 mm (0.0008 in) max. 0.05 mm (0.0020 in)
Commutator O.D. - 28.0-28.1 mm (1.102-1.106 in) 27.5 mm (1.083 in)
Brush length - 11.1-11.5 mm (0.437-0.453 in) 4.3 mm (0.169 in)