Hello. I have just finished my zvh engine with the 2.1 block. The head i have fitted is a standard 1.6 cvh head and is very tappy. The lifters seem to be lifting oil fine. (I have turned the crank with the coil lead off). The head has not been run for about 4 years or maybe more.

As stated in title it is very very tappy. Do you think it is because it has not been run for a while or is it a mechanical fault. many thanks in advance for your time and help