I think I bought the chain guides from Fords just in case, although mine looked ok and the rubber gasket in the pics was surplus. Maybe a Sierra version used this with the different front cover.
IIRC I fitted the tensioner wheel, plunger, chains and oils seal.
What parts exactly am i going to need to properly replace the chain and tensioner? including any bolts/seals etc?
Some said to replace the bottom pulley bolt as it's a stretch bolt but my Fords supplier hadn't got one and said they had never sold one ever so not to worry, I didn't
Having been a bit strapped, i still havent sorted my van yet, the tapping is worse and i have to get it sorted so looking for kit at the moment and also making checklist of exactly what to check for to diagnose the noise.
Sorry to sound stupid, but what do you mean exactly by oils seal?
also btw, i found this useful: http://www.fordscorpio.co.uk/images/dohc20chains.jpg
DOHC Timing Gear
The DOHC engines have many parts in common.
On the right the DOHC2000 is shown. Both the 8V and the 16V use this arrangement.
There are two simplex chains of unequal length, one for the cams and the other for the oil pump. The timing chain (4) rides the crankshaft pulley to run over a tensioner pulley (6) operated by the tensioner (8), then over the camshaft pulleys. An upper chain guide (10) is fitted between the cam pulleys.
It passes the chain guide (11) operating on a fulcrum provided by the collared bolt (21).
The oil pump drive chain runs on the forward pulley (1) passes a blade tensioner (19) using tension from the spring (9) and then over the oil pump drive pulley (3) and returns.
Any tips on checking tappets/adjusting tappets including how to do this and how to set correctly?