11-21-2012 09:11 AM
Usually cylinder head stud bolts will crack in the first lower thread caused by corrosion. This happens when water was spread over the engine.
Kind regards, Zement
09-17-2012 12:11 PM
The plant I am in is having a very high rate of cylinder head studs failure around 32 last year. Has anyone else had this type of trouble? The trends before showed that this plant normally broke around 5 a year since the start up of the plant, but last year the units had around 45k hours and the failure rate changed.