chain tensioner upgrade

[jaykay]

Has anyone gone and changed out their chain tensioners for the updated spring loaded type?

I would think that the spring load would be a great feature to mitigate chain lash on start up, before oil pressure builds up.

It seems Porsche has issued a TB regarding retro fit of the older tensioners; I am confused as to why this might be. Is there a dimensional, or stroke mismatch which is the issue?

Gp1800.pdf

_150_Carrera_New_Drive_Chain_and_Seal_for_Intermediate_Shaft.pdf

[JFP in PA]

Porsche first released the spring assisted style, and then promptly issued a TSB concerning which type of timing chains they should be used on (roller or non-roller), which confused a lot of people. Being Porsche, they then re-updated the tensioners yet again without any explaination.

I would get the latest update type for your exact engine year (check with a good parts department like Sunset Porsche to verify which style you should be using) and stick with them.