Acura Coupes and Sedans 1986-1993 Repair Guide

TDC/Crank Angle/Cylinder Sensors

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REMOVAL & INSTALLATION



Legend

See Figure 1



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Fig. Fig. 1: TDC/CRANK/CYL Sensor locations-Legend

  1. Set the engine to TDC No. 1 cylinder. On 1986-1990 vehicles, remove the cruise control actuator. Disconnect the CRANK/CYL sensor connector.
  2.  
  3. Remove the upper timing belt cover from the front bank of cylinders on 1986-1990 vehicles. On later models, remove both upper belt covers.
  4.  
  5. Remove the timing belt from the upper pulley(s).
  6.  
  7. Remove the 3 bolts holding the front or left pulley and remove it.
  8.  
  9. Remove the front upper cover back plate.
  10.  
  11. Unbolt and remove the sensor.
  12.  

To install:
  1. Carefully install the sensor on the head and tighten the bolts to 9 ft. lbs (12 Nm).
  2.  
  3. Install the upper cover back plate and gaskets.
  4.  
  5. Align the cam pulley pin with the camshaft hole to install the cam pulley. Tighten the bolts to 23 ft. lbs (32 Nm).
  6.  
  7. Install the timing belt.
  8.  
  9. Install the upper timing belt cover.
  10.  
  11. Install the cruise control actuator if it was removed.
  12.  

Integra

The sensors are contained within the distributor housing and are not individually serviceable. Should any of the sensors become faulty, the distributor housing must be replaced. All of the components external to the housing, such as the cap, rotor, coil and igniter may be transferred to the new unit.

Vigor

See Figure 2



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Fig. Fig. 2: TDC/CRANK/CYL Sensor locations-Vigor

  1. Set the engine to TDC No. 1 cylinder. Disconnect the TDC/CRANK/CYL sensor connector.
  2.  
  3. Remove the upper timing belt cover from the belt.
  4.  
  5. Remove the timing belt from the upper pulley.
  6.  
  7. Remove the bolt holding the pulley and remove it.
  8.  
  9. Remove the timing belt back plate.
  10.  
  11. Unbolt and remove the sensor(s). The TDC/CRANK sensor is held by two bolts; the CYL sensor is held by a nut and a bolt
  12.  

To install:
  1. Carefully install the sensors on the head and tighten the bolts and nut to 9 ft. lbs (12 Nm).
  2.  
  3. Install the back plate.
  4.  
  5. Align the cam pulley key with the camshaft slot to install the cam pulley. Tighten the pulley bolt to 54 ft. lbs (75 Nm).
  6.  
  7. Install the timing belt.
  8.  
  9. Install the upper timing belt cover.
  10.  

 
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