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York Air Compressor CFM Ratings (on the truck)
snaked from the J--P list!
From: John Nutter <jnutter com="">
Subject: re: york compressors</jnutter>
I found the displacements of the different York/Techuseh compressors in an old JCW catalog a while ago. Here they are:
| Model | Displacement (cubic inch per rotation) |
| F206R | 6 |
| F210R | 10 |
| R209R | 9 |
| R210L | 10 |
| T210L | 10 |
To decode:
first digit
F= flange top
R= roto lock
T= tube-O
2nd digit:
2= 2 cylinder
3rd and 4th digits - cu.in displacment of air during one rotation
5th digit:
R= right hand suction
L= left hand suction
- --
John Nutter '85 CJ7
Bill Blair compiled this shortspread sheet of Engine RPM = CFM output of a converted Air Conditioning Compressor to an on-board Air Compressor system.
This assumes a Compressor Pulley of 5" diamater, and an engine pulley of 6" in diameter.
CFM=(CID*RPM)/(12*12*12)*(Drive_Pulley_Diameter/comp_pulley_diameter)
| Compressor Cubic Inch Displacement | Cubic Feet per Minute Output @ Engine RPM | |||
| 1000 | 2000 | 3000 | 4000 | |
| 6 | 4.17 | 8.33 | 12.5 | 16.67 |
| 8 | 5.56 | 11.11 | 16.67 | 22.22 |
| 9 | 6.25 | 12.5 | 18.75 | 25 |
| 10 | 6.94 | 13.89 | 20.83 | 27.78 |
-Tom