4" UDP...2100 belt too short

[jimk04]

So all the sources I have looked at regardinfg belt length witha 4" UDP states 2100mm. (With AC and PAS). well for me this bekt is way too long.

Anyone any more feedbak on this.?

Im thinking maybe 20 or 30mm shorer?

[rfuerst911sc]

Your message subject title says the belt is too short but in your text you say it's too long.......which is it ?

[coolbreeze551]

Does the OEM belt not fit? I thought it was supposed to?

[Steve Tinker]

No - the smaller pulley demands a shorter belt.....
When I bought mine from Jake Raby, it came with a correspondingly shorter belt.

[jimk04]

Sorry yeah....Too long or short....?
I meant long....but have found a 2075 is correct.

Dont understand all the references to 2100 I've seen....way too long for me.

[rfuerst911sc]

I'm curious is 4 " considered the " standard diameter " for under drive pulleys ? Or do different manufacturers make different diameters ? If there are different diameters that could cause confusion on what size belt is considered the correct size. I'm having Jake install a UD pulley in August ( damn he's busy ) and I will pay attention to the brand/size of belt that is installed.

[coolbreeze551]

Originally Posted by jimk04

Sorry yeah....Too long or short....?
I meant long....but have found a 2075 is correct.

Dont understand all the references to 2100 I've seen....way too long for me.

May I inquire as to where you acquired the 2075 belt? I am having one installed next month and sounds like I will need this belt.

Thanks

[jimk04]

Just a local motor spares shop....gates 6pk2075 if I remember the part number .