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1989 Mercedes Benz 300se Repair Question


Topics covered: Camshaft, Rocker arm, Crankshaft.
Mileage: 200,000 miles.

Asked on August 18, 2011

Hydraulic lifters

How do you replace the hydraulic lifters on a 1989 mercedes 300SE?

On this same car do you need to adjust the valves?

If I could have a step by step procedures with picture or diagram so that I will not be confused, I would appreciate that very much.
Avatar Asked by drproud

Answer

Replied on August 18, 2011

ROCKER ARM ASSEMBLIES

Removal

Remove valve cover. Position camshaft lobes of rocker arms to be removed downward. Remove camshaft bearing cap. When rocker arms can be lifted, the lifter can be pulled out to be replaced.

Reverse procedure for installation.

There is no necessity to adjust the valve clearances as there is noting for you to adjust.

Tiny Answered by KHLow2008 (expert)
39,956 answers provided
Replied on August 18, 2011

When the position of the camshaft lobes of the rocker arms to be removed is downward, the rocker arm itself is up, the spring is not compressed. Is this true?
How do I turn the camshaft?
What is the torque of the bolts on the camshaft bearing cap?

Tiny Response from drproud
2 questions asked
Replied on August 18, 2011

Yes, with the camlobes downwards, there would be no pressure on the rocker arms.

Camshaft bearing caps torque is 11 ft.lbs.

Turn the crankshaft clockwise to turn the cams.

Tiny Answered by KHLow2008 (expert)
39,956 answers provided

Replied on August 18, 2011

How do you turn the crankshaft?

Tiny Response from drproud
2 questions asked
Replied on August 18, 2011

Do I need to remove the radiator, condenser to access the wheel for the crank-shaft, I am trying to see how I can turn the crankshaft by hand.

Tiny Response from drproud
2 questions asked
Replied on August 19, 2011

You need a box spanner to turn the crankshaft via the crank pulley bolt.

Tiny Answered by KHLow2008 (expert)
39,956 answers provided