Hi Thomas,
What you are seeing or indeed measuring could also be attributable to worn lifters and camshaft. The very reason in having hydraulic lifters is to eliminate the need to manually adjust the valves. When the lifters and camshaft are well past their best, the outcome will be less than satisfactory. If you are going to remove the timing cover again, why not replace the camshaft and lifters while you're in there? I feel otherwise you'll be doing a lot of work for zero benefit.
Ron.
What you are seeing or indeed measuring could also be attributable to worn lifters and camshaft. The very reason in having hydraulic lifters is to eliminate the need to manually adjust the valves. When the lifters and camshaft are well past their best, the outcome will be less than satisfactory. If you are going to remove the timing cover again, why not replace the camshaft and lifters while you're in there? I feel otherwise you'll be doing a lot of work for zero benefit.
Ron.