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.
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3b timing belt tensioner in place of roller on oil pump
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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/techni...-cambelt-guide
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1991 Audi S2 3B - 2.5 Stroker engine
1997 A6 2.5TDi quattro avant - C4
1976 RD250E / 350LC cafe racer
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