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Peoples Opinions On Not Relocating The Tensioner

Cartman

By Cartman,
in Engines & Forced Induction

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  • 2 weeks later...
30ed32 Enthusiast

30ed32

Posted
Posted

has anyone else welded a bit around the base just on the one side so the tensioner won't hit? because my thread isn't so great, the tensioner stud is tight in there and doesn't move around, but i dunno if thats enough for me

Gerg_R31 Mentor

Gerg_R31

Posted
Posted

from personal experience, the just jap rb30de belts are 150 teeth, which if going high compression n/a the teeth meet in the middle before getting the right tention (i ground 0.030" off the block and 0.080" off the head to get 10.5:1)

i know of someone making a carbon fibre rb30de lower cover mould, (who is also making the top and coil pack cover mould for the rb26)

JonnoHR31 Grand Master

JonnoHR31

Posted
Posted

in that case you'd probably have to relocate the tensioner, but it wouldnt be the same spot as the guide, you'd have to figure out exactly where it needs to go.

but for a standard 30det the gates belt and stock locationed tensioners works well, just make the bottom cover on the left side clears the belt by atleast ~10mm. myne cleared on the engine stand but now rubs ever so slightly at a certain rpm and load

Gerg_R31 Mentor

Gerg_R31

Posted
Posted

I dummy assembled the head block crank cams etc at work, i put a bit of bearing blue on the end of the stud (10mm by 1.5 thread pitch if anyone is looking for the tap / heli-coil set) and yeah it matched what the rb30de guide says. so I heli-coiled it

the gates t306 is the 150 teeth is what i got from just jap

but then i got the gates t291 152 teeth from repco for like $30 (Audi A4 1997-2000 1.8lt 4 cylinder turbo)

also came across this last weekend during my search

SUCCESS

Belt Guide:

Upper Tensioner Relocation Method.

Required Belt Length: 1216 mm

Required Belt Width: 25 mm

Required Tooth Pitch: 8mm

Required Tooth Profile: Trapezoidal (prefered) or Modified Curvilinear

Required Number of Teeth: 152

Compatible Belts:

Gates T291

Goodyear Gatorback 40291

Bosch BT866

Dayco 94680

Dayco 94407

Continental Contitech CT919 (OEM volkswagen belt supplier)

Factory Position - Dual Lower Tensioner Method.

Required Belt Length: 1200 mm

Required Belt Width: 23 to 25 mm

Required Tooth Pitch: 8mm

Required Tooth Profile: Trapezoidal (prefered) or Modified Curvilinear

Required Number of Teeth: 150

Compatible Belts:

Gates T306

Goodyear Gatorback 40306

Bosch BT306

Dayco 94777

Continental Contitech CT909 (OEM volkswagen belt supplier)

Gates PowerGrip GT2 1200-8MGT-30, cut down to 25mm from 30mm at factory (still pending)

This is a list of belts that i've compiled through comparing my new T291 belt to the stock SOHC dayco replacement belt for the RB30E. It fit exactly the same around the crank sprocket, so I did some sleuthing and cross referencing, and this is a list of belts that SHOULD be compatible.

When I say SHOULD, I mean that someone mentioned the GT2 to be compatible, and it was not. These belts are in comparison to the level of compatibility shown by the GT2. Even if you've got a GT2 on your DE conversion, it most likely does not fit as well as these ones listed above do.

30ed32 Enthusiast

30ed32

Posted
Posted

mmm, I never thought of using a heli-coil I might try that, only reason I'm not using the original location is im doing this build for a friend and he wants it cheap and i got the 152 belt for $19

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