| Hyundai Engine >> VALVE TRAIN NOISE ON 1995-98 HYUNDAI 1.5L ENGINES |
Valve Train Noise On
1995-98 Hyundai 1.5L VIN C Engines
The AERA Technical Committee offers the following information regarding a valve train noise on 1995-98 1.5L VIN C engines. Vehicles that have received less than normal oil changes are likely candidates for this type of noise.
It may be necessary to clean the valve lash adjusters on this engine as a small particle may have plugged the rocker arm oil feed passage to the lash adjuster. To properly clean out the lash adjusters, Hyundai offers the following information.
1. Remove the rocker arms from the rocker shaft, making sure to keep them in order.
2. Spray or dip the rocker arm in solvent.
3. Blow compressed air, using a rubber tipped gun, through the lash adjuster as shown in Figure 1. Place your finger over the vent port on the topside of the rocker arm; this will force air through the oil passage back to the rocker shaft hole. Using this compressed air, any particles lodged inside will be blown out the oil passage into the bore for the rocker shaft.
4. Spray the rocker arm oil passage with spray solvent using an applicator tube. If the passage is clear, solvent will squirt out into the lash adjuster bore.
The AERA Technical Committee
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