Should not need to prime this tensioner. Older versions, like those on the 4.5 you had to prime. Priming did not involve disassembly, rather you put it in a bucket of oil and pushed the piston in a couple times to blow out air and draw in oil.

__________________
Mike Tangas
'73 280SEL 4.5 (9/72)- RIP
Only 8,173 units built from 5/71 thru 11/72

'02 CLK320 Cabriolet - wifey's mid-life crisis

2012 VW Jetta Sportwagon TDI...at least its a diesel

Non illegitemae carborundum.