Help identifying this HZ/HD AC clutch?

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kevinmrowland

Forum Lifer
Joined
Sep 2, 2005
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Location
Eugene, OR
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www.wagongear.com
I need to replace my worn AC clutch but I cant figure out what application it was originally from to get the right part number.



I have a good working AC system that I've been running for 13 years now, needs a new clutch.
I bought the motor side of the AC as a complete unit to fit to my HZ, I have no idea what application it came from.

It seems that I have the "long" pump from a 80/100 application with a deep or "short" pulley to line everything up.
There are a lot of OE applications where the pulley is shallow or "long" in order to use the more common "short" pump on the 80/100 trucks.
Good thread with that and other info here:

What I have is:
IMG_1454.jpg


You can see the pulley is very deep on the sleeve, as opposed to the much more typical HZ/FJ62/Mini Truck pulley here:
IMG_1455.jpg


And side-by-side here:
IMG_1449.jpg


This is part number 88410-60310, most typical for HZ trucks and the same dimensionally as the FJ62 which also uses the same dimensional pump that fits the HZ bracket, etc.
Conversely there is also a very common part 88410-22480 which is a crazy shallow ("long") pulley to make the short pump line up the the HD/80/100 crank pulley, thankfully its not that since those are stupid expensive.
What I can't seem to turn up is the deep/short pulley for the long pump like I have. I did look to see if maybe I could bolt a HD pulley on my HZ crank instead but unfortunately they are the same part number- the mount bracket is the difference between needing the "long" or the "short" setup. And the long v short setup really just comes down distance from AC mount bolt to pulley groove, there are multiple combinations to get that to be long or short overall.

Now if I get completely stuck I CAN just mount a 62 compressor and use the 60310 pulley and be good to go- but my AC works well and I don't want to change the pump if I don't have to.


Here you can see a 62 pump, which would be a "short" pump compared to the "long" on my truck:
IMG_1452.jpg


And again:

IMG_1453.jpg




So part options that I have explored so far:
Obviously the 88410-60310 since its the most common (and I also pressed the bearing out of that one and used the spline clutch to milk some more life out of what I have)
The 88410-60340 is listed as the HZ clutch for when the AC was a "dealer option" from 93-99, which is promising but I can't find a pic of it, and it maaaaay be a grooved belt pulley as well.
Its counterpart would be 88410-60230 from 90-93, but once again, no visual.
There are two pulleys that are the inverse of what I need, the 88410-22480 mentioned above, and the 88410-35250. Their grooved belt counterpart seems to be 88410-6A010.
The groove belt counterpart to the 88410-60310 is 88410-34040 and interestingly enough there seems to be a groove belt version of what appears to be the correct depth of pulley for my application that is 88410-34020, but when I check the other variations of it's application there are none with the V belt pulley groove.

Looking past Toyota numbers there are a couple of great sources for all variety of the clutch/pulleys, but after scouring these, still nothing that would match my setup. In fact- the majority are pushed the other direction where the pulley is all the way to the front of the vehicle, rather than the back.
Here:
And here:
And here:




So- has anyone seen a setup with this deep pulley that they know the origins of so I can look up the part?
Thanks for the help.
 
Didn't I send you some pics 12-13 years ago of aircon pulley/clutch positions.?
I dont have anything else but this 830 page catalog on compressors, pulleys, and blower fans may have what you want.

Ha- I think when I was trying to do the original AC setup you posted some photos of the brackets so I could see what I was trying to put together? Or to compare to the FJ62 stuff, something like that.... it was awhile ago.

Too bad that catalog only shows 3/4 views of the pulleys, and no dimensions? wtf. BUUUuuutt- those first couple pages of blower motors are an unexpected bonus! I need to look careful through that since the FJ60 heater blower motor is no longer available and they are a wear item....
 
Ha- I think when I was trying to do the original AC setup you posted some photos of the brackets so I could see what I was trying to put together? Or to compare to the FJ62 stuff, something like that.... it was awhile ago.
I thought it was comparing 70 and 80 series brackets.
 

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