PART # 114900
When replacing oil pumps in the following transmissions, you may be supplied with a bearing type pump, which has superseded the bush type oil pump.
Things to be aware of:
- There is no supersession on the torque convertor, the issue with this is the bearing has a slightly larger clearance and can allow more oil to pass and compromise the front seal, even blowing the seal out.
- If the pump bush has lodged and seized on the convertor spout and this surface area/diameter is reduced by machining you will increase blow-by oil and increase the chance of seal blow out.
Things you can do:
Measure convertor spout. This should be 43.00mm minimum – if your spout is under you can replace the convertor spout. Alltranz has convertor spouts available with the following specifications:
- Pump Drive Style: Slots
- Hub Mount: Flanged
- Material: Hardened Steel
- Assembled Height: 32.26mm
- Flange Outer Dia.: 96.70mm
- Height: 37.80mm
- Journal Dia.: 43.00mm
