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Idler wheel for K-series dry sump belt?


SLR No.77

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Cheers Steve,

 

The Caterham D/S setup uses the power steering pump bracket, which incorporates a tensioner wheel (manually adjusted, no spring). My wheel has a chunk missing from the outer section therefore needs renewing.

 

Stu.

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I've seen 3 different types of these now. There's the manual and sprung tensioner type and then lately another type of sprung tensioner with a different wheel. My wheel has no recess for the belt, but the newer one does. Looks "safer" IYSWIM.
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I'd go for the auto tensioner if I were you. On a toothed wheel, it makes sense to go for a manual tensioner but poly-v belts are supposed to self tension to a point so you'll want something which can react to the changes in tension. The spring on the auto tensioner is bloody strong and gives you the opportunity to implement a belt-off warning light (pics available).

 

The whole tensioner assy is from the PAS system I believe. I can probably confirm that if in doubt.

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Thanks Nig - you're leading me down a whole new thought process!

 

I have the power steering pump bracket, which came complete with a 3 bolt plate assembly that mounts the manual tensioner. What alternative bits do I need to run an auto-tensioner?

 

Stu.

 

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