[garz]

i'm in the process of a swap - putting a K20A and Box into a mid engined car
the car has no power steering - or air con
so i'm keen to ditch the PS pump and AC pump - but obviously keep the alternator
seem to be 2 ways around it

1, use the Civic EP3 idler pulley and belt
pros = should be stock parts - easy to tension - and its tried and tested
cons = so far i've yet to track down the idler in the UK

2, use an overside alternator pulley and custom belt
(thought i saw photos on here)
Pros = Very neat - no unecessary moving parts- less space
Cons = may need a custom belt - not clear how to tension

any thoughts, experience or specifics would be great

i'm sure i'm not the only one that would like to know (great Forum!)

 

[non vtec]

I use the standard size pulleys and a short belt. I put a washer or 2 behind the alternator where the bolts go through. I have never had any issues with it yet. as for tensioning it when the time comes I'll just pack another washer behind the alternator.

I think there are a few guys doing this aswell..

 

[22crazy]

I use the standard size pulleys and a short belt. I put a washer or 2 behind the alternator where the bolts go through. I have never had any issues with it yet. as for tensioning it when the time comes I'll just pack another washer behind the alternator.

I think there are a few guys doing this aswell..

using standard pulleys, where can i find/buy this "short" belt? also how long is it? thanks

 

[non vtec]

I will measure the belt later tonight after work and give you a length. I'm pretty sure we still used the factory sized pulleys but made them all out of an alloy..

 

[garz]

yes please non vtec,

if it can be done with the standard pulleys and some spacers - great - but the belt looks mighty close to the middle pulley on my K20A

if you could measure the alternator pulley to check and let us know on teh belt size/part number it would be a great help

cheers

 

[non vtec]

ok the pulley is around 11-11.5" around the contact area. The belt is 40" long give or take 1/2".
I will post up a pic soonish of the pulleys and the belt..

 

[garz]

Good info - many thanks Non-Vtec

that looks pretty neat.

by the way - that pulley on the alternator is quite a bit bigger than a standard one - but it does give good clearance on the belt

looks like the way to go

thanks again