Condition
|
Action
|
Low oil pressure
|
Insufficient or poor oil supply to valve train.
|
1. |
Perform oil pressure test. |
|
2. |
Repair or replace all damaged components. |
|
Improper lubrication to the valve finger-follower
|
|
1. |
Inspect valve rocker arm, hydraulic valve lifter,
oil pump and engine block oil galleries. |
|
2. |
Repair or replace all damaged components. |
|
Worn or damaged valve finger-follower
|
|
1. |
Inspect valve rocker arm, hydraulic valve
lifter, |
|
2. |
Repair or replace all damaged components. |
|
Sticking valve
|
Carbon on the valve stem or valve seat may cause the valve to
stick.
|
1. |
Inspect valves and valve guides. |
|
2. |
Repair or replace all damaged components. |
|
Worn or faulty camshaft lobes
|
|
1. |
Inspect camshaft lobes. |
|
2. |
If damaged replace camshaft and all valve
finger-followers. |
|
Damaged or misaligned timing gears
|
|
2. |
Replace all damaged components. |
|
