Joined: 21 Mar 2015 Posts: 5971 Location: Brighton
Posted: Sun Feb 03, 2019 8:34 pm Post subject: 997 gen 2 drive belt Tensioner failure .
See the image below ..
No.1 . T50 bolt that locates it.
No.2 the pivot , it looks like a washer but isnt .. its a pivot .
No.3 the 30 or 32mm nut you adjust it with , i forget which size off hand.
You move No 3 .. if the bolt moves then No.2 is siezed .. you need the top part of the tensioner replaceing .
The lower damper only needs changeing if its leaking , again the roller pully is optional .
Damage can occur if its left .. think of the bolt doing up or unwinding as it moves , and this is what happens .. 4k RPM and it lets go .. expensive .
i dont want to scare but i have seen an engine replacement due to this .. only once and thats since the Gen 2 came out , but it snapped the block fixing for this part ... ( warrenty )
I will say that a lot of mechanics out there dont realise this ... a lot do .. but not all ...
Its an easy check to prove as above .
Just an advise as its a silly item that can be easily be over looked .
Gratitude to Windy101 for the image .
EDIT .. bolts are T50 not T30 .. for some reason i had it in my head they were T30 .. geting old i guess _________________ .
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