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Time-Rite has been the instrument of choice of aviation mechanics for over 40 years. By using specialised arms and calibrated scales Time-Rite accurately displays piston position and angular displacement to 1 degree accuracy on just about every make of aviation piston engines. No other instrument has come close to matching the versatility, simplicity and accuracy of Time-Rite.

Aircraft Tool Supply Company is the proud manufacturer of Time-Rite®. It’s completely manufactured, assembled and serviced at their plant in the U.S.A.

The basic Time-Rite unit (I200B18 & I200B14) does not include any arms or scales. You must purchase these separately for the specific type of engine you intend to service. The complete Time-Rite kits (I200B18K & I200B14K) include the basic unit plus the complete set of arms and scales.

Engine MakeEngine ModelTime RiteScaleArm
Allison V-1710-143, -145 B18 12 H
Continental A Series B18 5AB D
Continental C-75, C-85, C-115, C-125 B18 5AB C
Continental C-90, C-145, O-300-A thru D, O-200 A thru F B18 10AB C
Continental E-165, E-185, 1, 3, 8, 9, 11; E-225-4, 8 (with 532452 Cylinders); IO-470-J, 0470-A, E, J, 11 15 (with 532452 Cylinders) B18 10AB D
Continental E-165, E-185, 1, 3. 8, 9, 11, E-225-4, 8; O-470-A, E, J, 11, 15 (with 536727, 538348, 528610 Cylinders) B18 13AB E
Continental FSO-526-A (ATC), GSO-526-A (ATC) B18 20AB X
Continental G10-300, GO-300-A, B, C, E B18 21AB U
Continental GSO-526-A (BTC) B18 20AB A
Continental IO-470-C, G; O-470-B, G, H, M, N, P, 2, 13 B18 13AB E
Continental IO-470-D, E, F, H, K, L, M, N, R B18 17A S
Continental O-470-G, H B18 21AB T
Continental O-470-K, L, R, S B18 17AB S
Continental R-9A, R-760, R-975,-C1, C2, C3 B18 4AB C
Continental W670 B18 4BB C
Franklin 4A4; 6A4-150, 165; 64-178; O-335-3, 4 B14 7AB A
Franklin 6A8-125 B14 7AB E
Franklin 6A4-200, 6V4-200, O-335-2, 5, 5A, 5B, 6, 6B, VO-335-5 B14 8AB G
Franklin 6A6-245, 6A8, 6V6-245, O-425-1, 5, 9 B14 8AB R
Jacobs L4, R755A B18 6AB C
Lycoming D2, O-145-B, C B18 9AB C
Lycoming O-235, 0-290-11, O-320, A, C, E, O435-17, 23, O-480-1, A1, A6, GO-435, VO-435, GO-480-A1, A6, B, B6, D, F, F6, GO-580, GSO-480-A1A6, B1A6, B1B6, GSO-580, IGSO-480-A, A1, A6, B6, IO-320A TVO-435, TVO-435-B1A B18 9AB E
Lycoming O-340-A, O-290-D2B, O-290-D2C B18 18AB V
Lycoming GO-480C, C1B6, C2D6; G2D6; GO-480-C1D6; GO-480-C2C6 B18 19 E
Lycoming IMO-360-A, O-360A, A1A, VO-360, MO-360, IGO-540, O540-A, A1A; VO-540, IGSO-540, HIO-360B, 0-340-A1A B18 18AB D
Lycoming R-680 (5.5:1) B18 3AB C
Lycoming IO540 B18 9AB T
Lycoming IMO-360-B B18 19 E
Lycoming IO-320-B1A, B, C; 0-320-B, D; GO-480-B1B; B1DB, D1A; 0-235-C1, GO-435-C2A,C2B, D1; GSO-590C, GSO-580D, 0-540-B2B5 B18 9AB E
Lycoming O-360A1D, O-360C, O-540D, O-540E, IO-540-D4A5, O-540F, IO-360A, IO-360B, IO-360-A1B6 B18 29AB U
Lycoming VO-360A, VO-360B, IVO-360A, HO-360A, HO-360B, IO-540C, IO-540D, IO-540J, HO-360, IGSO-540-A1A B18 18AB D
Lycoming IO-720, IO-360-A1A B18 18AB V
Lycoming HIO-360B, O-340-A1A B18 18AB D
Lycoming O-360B, O-540B B18 19 R
Lycoming O-290-D2 B18 18AB E
Lycoming O-290D, O-435A B18 13AB V
Pratt & Whitney R-985, R-1830 B18 24AB A
Pratt & Whitney R-2000 R-2800 B18 24AB A
Pratt & Whitney R-1340-H1, R-2180 B18 23AB A
Pratt & Whitney R-4360 B18 23AB A
Ranger 6-440-C B18 3AB A
Rolls-Royce V-1650, 23, 25 B14 15 J
Rolls-Royce GIPSY QUEEN 30MK.2 & 70 MK.2 B14 25AB C
Rolls-Royce GIPSY MAJOR 140 B14 28A D
Rolls-Royce GIPSY MAJOR 10MK.2 B14 25AB R
Warner 125, 145, 165, 185 B18 6AB C
Wright R-1820-54, 72 WA, 60, 62, 62A, 74W, 76, 76A, 76B, 76C, 76D, 80, 80A, 82, 82A, 84, 84A, 84C, 84D, 86, 86A, 97, 101, 103, 103A, C9GC, C9HD, C9HE (805940) B18 2AB B
Wright R-2600-8, 13, 20, 29, C148B, R-3350-8, 13, 23A, 24W, 24WA, 35, 35A, 57M, 57AM, 83; 745C18BA-3 (805940) B18 2AB B
Wright R-3350-26W, 26WA, 26WB, 30W, 30WA, 30WB, 32W, 34, 77, 85, 89, 91 (805942), 861C18CA-2, 956C18CA, 927TC18DA-1, 2, 3, 4; 975C18CB-1, 988TCl8EA-1, 2, 3 B18 14AB M
Wright R-760, R-975 B18 4AB C
Wright R-3350TC18 B18 14AB MA

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