Tappets on 5.0 N/A engine

[ocean1]

Anyone had problems with these? I was down at MDM in Coalville on Friday and it was commented that the engine sounded slightly tappety, I cant say I had noticed, but now its been said Im concerned. Are the tappets even adjustable? I thought they were hydraulic.

[Jaguar steve]

V8 tappets are not hydraulic. You may need an oil change if the engine has been filled with a mineral oil that has lost it's hot viscosity over time or the noise may simply be normal injector firing.

Change the oil for a good quality proper synthetic and see if that makes a difference.

[ocean1]

But there is variable valve timing on the N/A engine, and the lifters are not hydraulic? Anyway its having the oil changed now so I can be sure its the proper stuff. It has only just been serviced apparantly at North West XJ (Jagman), so if the oil is incorrect I shall want to know the reason why.

[ocean1]

The injectors on these engines can sound like the faint clacking of tappets? The noise is coming from both banks so perhaps it is this then.