4Litre_SiX
New member
I was wondering if anyone has experienced a slight knocking noise from their engine. It is for the most part, intermittent. It seems to come and go, but is only ever there on idle and generally when cold, but can sometimes be heard when idling at traffic lights. I have had a poke around with a screwdriver to my ear. The knock seems to be worst when placing the screwdriver against the rocker cover, over the last cylinder. It doesnt sound like a big end knock as it doesnt increase with revs etc. I was leaning towards excessive valve lash. Do these engines run hydraulic or solid lifters?
