Guide For Transmission Element Sources
Key to element symbols:
- Al = Aluminum
- Cr = Chromium
- Cu = Copper
- Fe = Iron
- Pb = Lead
- Si = Silicon
- Na = Sodium
- Sn = Tin
Transmission Element Sources | Element | |||||||
---|---|---|---|---|---|---|---|---|
Possible Source | Al | Cr | Cu | Fe | Pb | Si | Na | Sn |
Aluminum | 鈥 | |||||||
Anti-seize compounds (no failure) | 鈥 | 鈥 | 鈥 | |||||
Bearing 鈥 differential | 鈥 | |||||||
Bearings | 鈥 | 鈥 | 鈥 | |||||
Brakes discs | 鈥 | |||||||
Brass pump parts | 鈥 | |||||||
Clutch housing | 鈥 | |||||||
Clutch pack piston | 鈥 | |||||||
Clutch plates (Transmission or lock-up clutch) | 鈥 | |||||||
Condensation | 鈥 | |||||||
Possible Source | Al | Cr | Cu | Fe | Pb | Si | Na | Sn |
Coolant leak | 鈥 | |||||||
Cooler core leaching (no failure) | 鈥 | |||||||
Dirt entry | 鈥 | |||||||
Dirt entry (clay soils) | 鈥 | 鈥 | ||||||
Friction bonding agent | 鈥 | |||||||
Gears | 鈥 | |||||||
Housing | 鈥 | |||||||
Isolation plate (gear pump) | 鈥 | 鈥 | ||||||
Lockup clutch disc | 鈥 | |||||||
Oil additives (no failure) | 鈥 | 鈥 | 鈥 | |||||
Possible Source | Al | Cr | Cu | Fe | Pb | Si | Na | Sn |
Pressure plate wear (gear pump) | 鈥 | |||||||
Pump and motor bearings | 鈥 | |||||||
Pump bearings | 鈥 | 鈥 | ||||||
Pump body wear | 鈥 | |||||||
Pump body wear (gear pump) | 鈥 | 鈥 | ||||||
Pump housing | 鈥 | |||||||
Pump wear | 鈥 | |||||||
Roller bearings | 鈥 | 鈥 | 鈥 | |||||
Shafts | 鈥 | |||||||
Silicon additives (no failure) | 鈥 | |||||||
Possible Source | Al | Cr | Cu | Fe | Pb | Si | Na | Sn |
Silicon grease (no failure) | 鈥 | |||||||
Slipper and port plate wear (piston pump) | 鈥 | |||||||
Splines | 鈥 | |||||||
Thrust washer 鈥 differential | 鈥 | |||||||
Thrust washers (drop box assembly) | 鈥 | |||||||
Thrust washers (inter axle assembly) | 鈥 | |||||||
Torque converter bushing(s) | 鈥 | |||||||
Torque converter impeller | 鈥 | |||||||
Torque converter turbine | 鈥 | |||||||
Transmission center shaft 鈥 sleeve bearing | 鈥 | |||||||
Possible Source | Al | Cr | Cu | Fe | Pb | Si | Na | Sn |
Transmission discs | 鈥 | |||||||
Washer 鈥 axle | 鈥 | |||||||
Water entry | 鈥 | |||||||
Possible Source | Al | Cr | Cu | Fe | Pb | Si | Na | Sn |