[Healeys] Timing chain tensinoer

[john spaur]

I bought I new timing chain tensioner and unbeknownst to me it is a 
County brand.

It lacks the oil hole and I am concerned that the rubber is pour 
quality and could become un-bonded.

Are people having problems with these? If the rubber is good I could 
use the original body with the oil hole.

What about the Denis Welch tensioner (expensive).

John
'62 BT7