Hello

i'm having some troubles with the tensioner for the timing chain between the cams on my 1.5 Z5 engine.

Long story short: took out the cams because i removed the head to change valve stem seals. After installing it again the tensioner was soft and made a lot of ticking and rasling noises. I tought it was broken so i bought a brand new OEM tensioner (Z501-12-500). Installed the tensioner and cams again, but still the same. Tensioner is soft and the chain is slack and is making noises.

Took the tensioner out again and fed oil in the feed hole, while blocking the output holes that lubes the chain. This made the tensioner hard as it should. Then again i installed it and started the car. It ran smooth and without any noises for about a minute. Then the same thing all over again. Smooth tensioner.

For info i have blown air down the oil chanel that feeds oil to tensioner. Oil pressure is within spec. I have tried to look for a manual that mention anything on how to install this but i can't find anything. Now i am out of ideas. Is there any spesial procedure to vent or install this tensioner? Or have anyone had the same problem?

Appreciate all help

Jonas


Oil feeds into the small 3mm hole to bottom left.