Piston crowns

Piston crowns often exhibit wear, particularly within the piston ring grooves, which inevitably leads to over sizing and often scrapping. PJ Diesel and their partner have developed a proven method to recondition used piston crowns back to standard at a fraction of the cost of a new unit(s).

On receipt at our works, all piston crowns are thoroughly cleaned, degreased and identified with a unique reference number to ensure traceability.

A full inspection report is produced, including photographs – And sent to the client for approval including recommendation for repair.

Upon receipt of approval from client, the piston crown(s) is machined to remove all existing chrome and prepared for hard chrome plating of the ring grooves.

Hard chrome plating of all over size ring grooves is then completed.

This is followed by precision re-machining of the ring grooves, and all critical areas to the original limits and tolerances, carried out in own state-of –the-art workshops.

The piston crown is then clean and complete.