36 ENGINE2.2LDICOR Hydraulic lash adjuster Hydraulic lash adjuster uses Engine oil pressure for its operation. In case of a freshly assembled Engine, do not run for a long time; there are chances of valve train noise / tappet noise appearing when engine is started. There is no danger of damage to other components if engine is run for few minutes on no load condition. HLA noise can be heard as repeated tappet like noise when engine is running at low idle speed. Following procedure is recommended to eliminate the noise l Raise the Engine RPM to 500 without load (Vehicle stationary) to bleed the hydraulic chamber of HLA. The noise should disappear in 15-30 seconds. l If the noise still persists, run the engine further under same condition (no load @ 500 RPM) for several minutes. The noise should disappear in 3 to 30 mins, in few cases. l In a very rare case if still noise is heard, the HLA stuck in compressed condition needs to be replaced. Cylinder head bottomand top views
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