Why is there a clearance between the rocker arm and the valve stem?
The clearance in between the valve stem and rocker arm is termed as tappet clearance. They facilitate the operation of rocker arm in a four-stroke engine; by providing sufficient space for thermal expansion.
What instrument measures clearance of rocker arm face and valve stem?
In automotive applications, feeler gauges can be used to set the valve clearance between the rocker arms and the valve stem and to adjust the spark plug gap.
Where is the valve adjusting wrench on a Mercedes?
Valve adjusting wrench is on the lower lock nut ready to take tension off the top adjusting nut. Bottom nut is being loosened while holding the top nut still. Once the bottom nut is loosened
What are the torques on a Mercedes Benz cylinder head?
Lock nut to adjusting screw 50 Nm Rocker arm pedestal to cylinder head Stage 1 60 Nm Stage 2 90° OM 457 hLA Euro 4/5/EEV (457.950/954/959/964) Rocker arm Tightening torques Lock nut to adjusting screw
How big is the rocker arm on a Mercedes Benz?
50 Nm Rocker arm pedestal to cylinder head Stage 1 60 Nm Stage 2 90° OM 457 hLA Euro 4/5/EEV (457.950/954/959/964) Rocker arm Tightening torques
Where do you put the valve cover on a Mercedes?
When the valve cover is removed I just lay it over on its back on the fender, with all the stuff still bolted to the valve cover. Makes it MUCH easier! when the valve cover is removed. After the nuts are removed, I just lift the valve cover up and lay it on the drivers fender. cover on the top. Naked exposed upper cylinder head.
What are the tightening torques in a Mercedes Benz?
Tightening torques 01 Engine Injection nozzle combination Tightening torques Clamp piece for injection nozzle combination to cylinder head 35 Nm Thrust bolt for high pressure fuel line to cylinder head 40 Nm Timing case Tightening torques Timing case to the cylinder crankcase 50 Nm
How much torque does a m8x75 cylinder head have?
Tightening torques Rocker arm pedestal to cylinder head M8x75 10.9 30+6 Nm Adjusting screw on rocker arm M10x1 25+5 Nm Adjusting screw on bridge M10x1 25+5 Nm Timing case Tightening torques Timing case to the cylinder crankcase 50 Nm
What kind of clamp tightens the cylinder cover?
Cylinder head cover Tightening torques Cylinder head cover on cylinder head 30 Nm Hose clamp, WAF 7 3 Nm Reinforced hose clamp, WAF 10 5 Nm Cylinder head Tightening torques Cylinder head to cylinder crankcase M16x2
What are the torques on a m16x2 cylinder?
Cylinder head Tightening torques Cylinder head to cylinder crankcase M16x2 Stage 1 20 Nm Stage 2 70 Nm Stage 3 170 Nm Stage 4 280 Nm Stage 5 90° Stage 6 90° Sump Tightening torques Oil sump to the cylinder crankcase M8 25 Nm Oil level sensor to sump M20x1.5 50 Nm Oil drain plug to sump 80 Nm