Piston-Std 810852

• Piston-Std 810852

Piston-Std 810852

This internal engine component absorbs combustion or control forces and transmits them to the associated mechanics.

It is installed in the crank mechanism or valve train Wear, thermal overload or dimensional deviations lead to noise, loss of power or engine damage.

Component classification: Piston or crank drive component

System function: Power transmission or valve control in the crank or cylinder head drive

Compatible manufacturers: Mercury / MerCruiser

Compatible models: various Mercury and MerCruiser engines - check serial number

Reference numbers:

• OEM: 810852

FAQ

What exactly is the task / function of the component?
The internal engine component absorbs forces from combustion or the valve train and transfers them to the associated mechanics within the engine. Dimensional accuracy, material condition and surface quality are essential for function and service life.

How can you recognize a defect / typical symptoms?
Typical symptoms are mechanical noises, loss of power, compression deviation, increased oil consumption or metal abrasion in the oil. Wear, seizure, thermal overload or dimensional deviation have a direct effect on engine running.

How do you check / test the component?
Dimensions, play, surfaces, straightness or concentricity and the contact pattern on the contact surfaces are checked according to workshop specifications. In addition, compression, leak-down or valve clearance measurements provide information on the condition in the installed engine.

When should it be replaced?
The part should be replaced if the wear limits are exceeded, cracks, seizure marks or thermal damage. Highly stressed internal components are often replaced as a precautionary measure as part of an engine overhaul.

How do you check compatibility?
The OEM number, motor type, dimension group, standard or oversize, installation position and corresponding mating parts are important. Changes to the serial number and machining status of the motor must also be taken into account.