3b timing belt tensioner in place of roller on oil pump

[booested4door]

Hey all!! I have a 2 bennett serpentine setup on my b2 20vt. this setup uses an AAN waterpump..so adjustment, a 3b belt and no tensioner at all. Ironically the 3b belt is perfect tension. THat said, Id like to add a vw 8v tensioner in place of the oe roller on the pump. what are peoples thoughts here? any issues with drilling the block for the larger bolt? I know this is how the stroer guys get the tensioner integrated, but thats a different block.

[varia]

"this setup uses an AAN waterpump..so adjustment, a 3b belt and no tensioner at all." What?

[booested4door]

yup..... 2bennett.....ness. hence why i want to add one.......

[AndyP]

The 3B uses the waterpump as the tensioner, it has slots instead of holes. I saw a picture the other day where they were using a relay roller off another Audi that looked the same as the 3B one but had an eccentric adjuster in the middle, I think it was from the 2.0 16v ACE engine.

https://www.s2forum.com/forum/technical/engine-and-turbo/76019-stroker-cambelt-guide

[booested4door]

i saw that too! thats what im trying to accomplish, but on a 3b block

[AndyP]

I've ordered one, I have a stroker block but a 3B oil pump, I'll report back when I've trial fitted it.

[sal_s2]

Good idea