AC Pulley from 2002AD

[Djthom]

Hi All

 

I got an AC pulley from 2002AD for use with my ICEAC kit.  I need to press this onto the hub. 

 

Can anyone tell me which side A or B goes towards the timing belt teeth and also how far to press it on?

 

The A side has a relief and chamfered edge which would help start it square on the shaft.  The B side has a sharp shoulder which would serve as a hard stop against the teeth.  So I'm not sure what the intent is here.  

[Son of Marty]

Call 2002ad and get the word from the horses mouth.

[Djthom]

I tried.  Ben just makes then and farms out the install so he didn't know but was going to look into it.  Bob at ICEAC didn't know either!   Surprising

[Stevenc22]

Here is my oem pulley. Hope this helps

[Mark92131]

1 hour ago, Djthom said:

So I'm not sure what the intent is here.  

 

From the OEM piece, it looks like the "A" side goes against the timing belt teeth.

 

Mark92131

[Djthom]

Thanks guys.  It does look like A side against the teeth. 

 

This pulley measures 16.5mm approx on average.  @Stevenc22is that what you get on your part?

Edited July 7, 2022 by Djthom

[Stevenc22]

Here u go

[Djthom]

Great thanks.  I dropped the parts to a machinist.  The other issue is the 2002ad pulley has 7 thou interference fit which won't work.  Nothing is easy....

[Son of Marty]

I think the idea is to freeze the pully in alcohol and dry ice, and heat the pully before pressing the 2 together. Notice the heat ring on this pully 

 

 

[TobyB]

7 thou would crush the pulley, methinks. Off the top of my butt.

2 or 3 seems more appropriate for a shrink fit onto a casting...

 

I'd turn down the casting, after making sure that sheave is concentric...

 

t

 

[Ryan P]

3 thou should do the trick. 

[Djthom]

So I had the pulley machined and pressed on.  The issue I have now is that if the timing belt teeth are aligned, properly, the AC pulley would be recessed into the front cover.  Is modification to the front cover required to fit an AC pulley (the actual front cover, not the plastic cover which I know you have to cut for belt to pass)   can someone post pictures of an AC pulley installed?

[jgerock]

9 hours ago, Djthom said:

So I had the pulley machined and pressed on.  The issue I have now is that if the timing belt teeth are aligned, properly, the AC pulley would be recessed into the front cover.  Is modification to the front cover required to fit an AC pulley (the actual front cover, not the plastic cover which I know you have to cut for belt to pass)   can someone post pictures of an AC pulley installed?

You should look at the Behr AC installation instructions posted on this site.  Another recent great resource is Rob Siegel’s book “Just Needs a Recharge” from Amazon.com.   The lower aluminum timing cover will need notching as well as the lower plastic cover.

Edited July 13, 2022 by jgerock