How to Replace an Oil Pump on All 1996 - 2000 Honda Civic LX / Del Sol 1.6L 4 Cyl D16Y5, D16Y7 & D16Y8 Engines
Removal & Installation
Fig. CKF sensor location-1.6L (D16Y5, D16Y7, D16Y8) engines
The original radio may contain a coded anti-theft circuit. Always obtain the security code number before disconnecting the battery cables.
1.6L (D16Y5, D16Y7, D16Y8) Engines
- Disconnect the negative battery cable.
- Raise and safely support the vehicle.
- Drain the engine oil.
- Rotate the crankshaft to set the No. 1 cylinder to Top Dead Center (TDC) for the compression stroke. The white TDC mark on the crankshaft pulley should align with the TDC pointers on the lower timing cover. Mark the direction of the timing belt rotation if it is to be reinstalled.
- Remove the accessory drive belts and the crankshaft pulley.
- Remove the valve cover and the upper and lower timing belt covers. Cover the rocker arm and shaft assemblies with a towel or sheet of plastic to keep out dirt and foreign objects.
- Remove the dipstick and its tube from the oil pump housing.
- Release the timing belt tension. Then, remove the timing belt.
- Unbolt the Crankshaft Speed Fluctuation (CKF) sensor from the oil pump cover. Disconnect the sensor and remove it so that it will not come in contact with oil or become damaged.
- Remove the crankshaft sprocket.
- Remove the oil pan.
- Unbolt the oil screen and pick-up tube from the oil pump housing and crankshaft buttress. If the screen and pick-up tube are blocked with oil residue, clean or replace them as necessary.
- Unbolt, then remove the oil pump assembly. If the rotors are to be reused, matchmark them with a felt-tipped marker for assembly.
Replace the rotors if they are worn or damaged. Use new O-rings when assembling and installing the oil pump.
- Install the rotors back into their original positions. Be sure they move without binding. Pack the rotor cavity with petroleum jelly to prevent oil starvation damage when the engine is initially started.
- Assemble the oil pump and tighten the rotor cover bolts to 5 ft. lbs. (7 Nm).
- Be sure all gasket mating surfaces are clean prior to installation.
- Install a new crankshaft oil seal into the oil pump housing.
- Apply liquid gasket to the cylinder block mating surface of the block. Apply a light coat of oil to the crankshaft seal lip. Install a new O-ring on the cylinder block and install the oil pump. Apply liquid gasket to the threads of the oil pump mounting bolts and tighten them to 8 ft. lbs. (11 Nm).
- Lightly lubricate the relief valve piston and spring, then install them. Install the sealing bolt with a new crush washer, and tighten it to 29 ft. lbs. (39 Nm).
- Install the oil screen. Tighten the fastening nuts and bolts to 8 ft. lbs. (11 Nm).
- Install the oil pan. Tighten the oil pan nuts and bolts to 9 ft. lbs. (12 Nm).
- Install the crankshaft sprocket. The concave surface of the spacer must face the engine block.
- Verify that the engine is at TDC/compression for the No. 1 cylinder.
- Install and tension the timing belt. Tighten the tensioner adjusting bolt to 33 ft. lbs. (44 Nm).
- Install and reconnect the CKF sensor. Tighten the sensor mounting bolt to 9 ft. lbs. (12 Nm).
- Install the upper and lower timing belt covers. Install the valve cover. Be sure all rubber seals and gaskets are properly seated.
- Install the dipstick tube with a new O-ring.
- Tighten the crankshaft pulley bolt to 134 ft. lbs. (181 Nm).
- Install a new oil filter. Refill the engine with fresh oil.
- Slowly rotate the engine several times by hand to prime the oil pump and verify that the timing belt has been installed and tensioned correctly.
- Install and adjust the accessory drive belts.
- Connect the negative battery cable.
- Run the engine and check for proper oil pressure.
- Check for leaks. Top off the engine oil if necessary.