Loud tapping noise coming from top of engine

[Starter986]

Originally Posted by Dave2001S

Thank you so much. Is there a procedure available for the replacement of the pressure relief valve? Or is that pretty straightforward? I see one can order a new piston, seal, and spring from Pelican. Is that all there is to it?

Gravy. Remove the bolt (watch for a litle oil, capture it in a cup), remove old, install new... snug her up. 5 minutes.