Over drive AC Pump
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4000 rounds a min
Joined: Apr 2010
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From: Albemarle NC
Over drive AC Pump
Anybody ever overdriven a AC Pump on an 7.3. Did the shim delete on my
AC the other day and noticed that the ware was getting in to the riverts for release spring.
Thanks
Richard
AC the other day and noticed that the ware was getting in to the riverts for release spring.
Thanks
Richard
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4000 rounds a min
Joined: Apr 2010
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From: Albemarle NC
Maybe this will help. This is what I'm looking at.
<TABLE cellSpacing=0 cellPadding=8 width="100%" border=0><TBODY><TR><TD><TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD class=pageHeading vAlign=top>99-03 Ford 7.3L Powerstroke AC Underdrive Pulley Kit F250/F350 from DFUSER
<SUB>[9903UPULLY]</SUB></TD><TD class=pageHeading vAlign=top align=right>$169.99 </TD></TR></TBODY></TABLE></TD></TR><TR><TD>
</TD></TR><TR><TD class=main><TABLE cellSpacing=0 cellPadding=2 width="100%" border=0><TBODY><TR><TD class=main vAlign=top>
******** type=text/javascript><!-- document['product1124'].src = 'images/ac_under_pulley_73lsm.jpg' //-->*********>
AC Underdrive Pulley system for your 99-2003 Ford F250/F350 7.3L Diesel, excluding Excursions
<!-- // EOF Affiliate program 2.5a upgrade mods DMG --></TD></TR></TBODY></TABLE></TD></TR><TR><TD colSpan=2>Again Thanks,
Richard
The Truck
</TD></TR></TBODY></TABLE></TD></TR><!-- // BOF MaxiDVD: Modified For Ultimate Images Pack! //--></TBODY></TABLE>
<TABLE cellSpacing=0 cellPadding=8 width="100%" border=0><TBODY><TR><TD><TABLE cellSpacing=0 cellPadding=0 width="100%" border=0><TBODY><TR><TD class=pageHeading vAlign=top>99-03 Ford 7.3L Powerstroke AC Underdrive Pulley Kit F250/F350 from DFUSER
<SUB>[9903UPULLY]</SUB></TD><TD class=pageHeading vAlign=top align=right>$169.99 </TD></TR></TBODY></TABLE></TD></TR><TR><TD>
</TD></TR><TR><TD class=main><TABLE cellSpacing=0 cellPadding=2 width="100%" border=0><TBODY><TR><TD class=main vAlign=top> ******** type=text/javascript><!-- document['product1124'].src = 'images/ac_under_pulley_73lsm.jpg' //-->*********>
AC Underdrive Pulley system for your 99-2003 Ford F250/F350 7.3L Diesel, excluding Excursions
- Get more power out of your engine and cooler running A/C.
- General Information:
1999-2003 Ford F250-F350 Trucks NO Excursions. Single Alternator Systems only - Features
- The most complete kit period!
- New A/C Pulley, clutch kit and shorter Belt
- New Pulley diameter is ~117mm or 4.6" to Factory ~132mm or 5.2".
<!-- // EOF Affiliate program 2.5a upgrade mods DMG --></TD></TR></TBODY></TABLE></TD></TR><TR><TD colSpan=2>Again Thanks,
Richard
The Truck
</TD></TR></TBODY></TABLE></TD></TR><!-- // BOF MaxiDVD: Modified For Ultimate Images Pack! //--></TBODY></TABLE>
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Joined: Sep 2000
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From: Stephensville WI
So, in reality that is an overdrive kit due to the smaller pulley, not an underdrive kit as it is advertised.
The claims "more HP and "cooler A/C" are not compatible. You get cooler A/C by spinning the compressor a little faster, but it takes MORE engine power to do this.
The claims "more HP and "cooler A/C" are not compatible. You get cooler A/C by spinning the compressor a little faster, but it takes MORE engine power to do this.
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4000 rounds a min
Joined: Apr 2010
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From: Albemarle NC
So undersizing the pulley spins the compressor faster makes cooler air but
robs engine of power. Sounds like this is not what I want, just need to go back with stock setup, It's worked for me so far.
Richard
The Truck
robs engine of power. Sounds like this is not what I want, just need to go back with stock setup, It's worked for me so far.
Richard
The Truck
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Joined: Jun 2010
Posts: 3
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Anybody have any ideas on a fully charged A/C system intermittently going warm? I have to turn off the air for a few minutes while driving and then it blows cool for a few minutes. Repeat as necessary. Thanks!
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Cargo Master
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Joined: Jan 2002
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From: La La Land
Take a look here:
https://www.ford-trucks.com/forums/5...ml#post4464164
I did a small write-up here:
SpringerPop's Compressor Clutch Air Gap
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Deluxe06
1999 - 2003 7.3L Power Stroke Diesel
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Jul 27, 2010 09:30 PM
