Not quite on the V8 as it's a pushrod not overhead cam engine. So it is the followers that must be replaced with the camshaft. Followers are hydraulic so you need a fair amount of slack before you get a tapping noise as the follower takes up the slack. Pre-load must be correct so the follower is operating within the design range, see V8 Developments - Technical - Valve Train. Advice ref Moly lube is absolutely essential though.You change the camshaft and the rockers as a set. So either new rockers (or refaced) as well.
To quote the mechanic's work invoice this is what they did, and it costed $6000 so you can see why were at our wits end with this, as well as now there's an oil leak, lost about a quart in 2 days and it's coming from 3 spots. Got the Rover back the first time and it started ticking the next day. And now two days later it starts ticking again, any thoughts or insights?Camshaft - regrind, Manifold Gasket Set - Intake, Cam followers, Rocker Arms, Rocker Shaft, Pushrod, Valve Cover Gasket, Crankshaft seal, Camshaft Gear, Crankshaft Gear, Timing Chain, Timing Cover Gasket, Water Pump Gasket, Oil Cooler O-Ring
They did replace all 16 cause on the invoice it says x16, they only list the item description and beside it how many of each but yeah I'll make sure they investigate it further, but I'm worried about having to drive it back to the mechanic's, can this bad ticking cause any real damage just by driving it back there? (About a 45 min drive)That list includes pushrod,.just one not a full matched set of 16? Why would it need one pushrod too? After having paid out virtually the cost of a complete reconditioned engine, I'd take it back and get them to investigate further and sort out the oil leaks while they are at it.