V belt length

[Big Jim]

Hi does any one know the length of the alternator drive belt ? The reason I ask is my old one is 850 , I bought a new Gates belt from a Lotus supplier and it is 865 , which is too long . Is there something non standard on my car or was I suplied the wrong belt ?
Thanks Jim

[Hawaiis0]

Mine's approx 870 so I go with the Gates

[barker_001]

The correct alternator belt is a Gates 6263MC, according to their website the length is 865mm. So you have the right belt now.

[Big Jim]

Mmm. 865 is too long for me , I run out of adjustment .850 is only just small enough .

[Hawaiis0]

How deep is the belt sat in the V?

[Big Jim]

Good point , I have had a look and it looks ok . The alternator belt is the one on the right .





PS Does any one know why I am not being notified of a reply ? I have ticked the relevant box .

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[barker_001]

Non standard alternator or pulley? I've just measured the alternator pulley diameter on mine and its 63mm. I suppose if the pulley was smaller you would need a shorter belt?

[Big Jim]

Mine also 63mm .It must be a non standard slotted adjuster ? There is a bit of a mystery in that area , note the ragged edge on that bracket , that is the cam belt tensioner on the right ff the pic.