Unit Repair Manual

The 4T65-E has an oil pump assembly that has selective rotor, vane and slide components. These components are chosen based on pump body dimensions. Oil pump body, rotor, vane and slide components are available in four size classifications (1, 2, 3 and 4) with the following tolerances:

Rotor Selection:

Slide Selection:

Vane Selection:

Oil Pump Body Depth:

Rotor, vanes and slide must be chosen in the same size classification to match the oil pump body. Allowable rotor, vane and slide end play to the oil pump body are as follows:

- Slide to Oil Pump Body End Play: 0.033-0.076 mm (0.0013-0.0030 in)
- Rotor and Vane to Oil Pump Body End Play: 0.050-0.083 mm (0.0020-0.0033 in)