Cause | Correction | ||||||||||||||
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Low oil pressure |
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Loose and/or worn valve rocker arm attachments |
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Worn or damaged valve rocker arm |
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Bent or damaged push rod | Inspect the following components and replace, as required:
Inspect the top of the pistons for valve contact. If the top of the piston shows valve contact, replace the piston and pin assembly. | ||||||||||||||
Improper lubrication to the valve rocker arms | Inspect the following components and repair or replace, as required:
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Broken valve spring | Replace the valve spring and spring shim. | ||||||||||||||
Worn or dirty valve lifters | Replace the valve lifters. | ||||||||||||||
Stretched or broken timing chain and/or damaged sprocket teeth | Replace the timing chain and sprockets. | ||||||||||||||
Worn engine camshaft lobes |
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Worn valve guides or valve stems | Inspect the following components and repair, as required:
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Stuck valves Carbon on the valve stem or valve seat may cause the valve to stay open. | Inspect the following components and repair, as required:
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Cause | Correction | ||||||||||
---|---|---|---|---|---|---|---|---|---|---|---|
Low oil pressure |
| ||||||||||
Loose and/or worn valve rocker arm attachments |
| ||||||||||
Worn or damaged valve rocker arm |
| ||||||||||
Bent or damaged valve push rod | Inspect the following components and replace, as required:
Inspect the top of the pistons for valve contact. If the top of the piston shows valve contact, replace the piston and pin assembly. | ||||||||||
Improper lubrication to the valve rocker arms | Inspect the following components and repair or replace, as required:
| ||||||||||
Broken valve spring | Replace the valve spring and spring shim. | ||||||||||
Worn or dirty valve lifters | Replace the valve lifters. | ||||||||||
Stretched or broken timing chain and/or damaged sprocket teeth | Replace the timing chain and sprockets. | ||||||||||
Worn engine camshaft lobes |
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Worn valve guides or valve stems | Inspect the following components and repair, as required:
| ||||||||||
Stuck valves Carbon on the valve stem or valve seat may cause the valve to stay open. | Inspect the following components and repair, as required:
|