Cause
|
Correction
|
Worn or loose rocker arms
The rocker arm bearing end caps and/or needle bearings should
intact within the rocker arm assembly.
|
Replace the valve rocker arms as required.
|
Stuck valves
Carbon buildup on the valve stem can cause the valve to not close
properly.
|
Repair or replace as required.
|
Excessively worn or mis-aligned timing belt
|
Replace the timing belt and sprockets as required.
|
Worn camshaft lobes
|
Replace the camshaft and valve lash adjusters.
|
Sticking valve
|
Replace as required.
|
Worn or damaged pushrods
|
|
1. |
Inspect the pushrods for excessive wear, bent
condition or broken tip. |
|
Broken valve springs
|
Inspect valve springs and replace as required.
|
Excessive valve lash
|
Inspect the valve lash adjusters and replace as required.
|
