Allis-Chalmers 2900 Mark II — Fuel Injection Pump Removal
Repair & overhaul
For the Allis-Chalmers 2900 Mark II, from the Allis-Chalmers service manual.
Before you start
- Shut off fuel supply if the tank or fuel level in tank is above the filter.
- Clean external surfaces to prevent dirt from entering system.
Procedure
- Clean external surfaces of the injection pump, including all line connections and fittings to be disconnected, to prevent dirt from entering system.
- Remove timing hole plug located on side of timing gear housing cover and in line with the injection pump drive hub.
- Rotate engine flywheel until the timing mark on pump drive hub is in line with mark on timing pointer on fuel injection pump.
- Disconnect speed control throttle from speed control lever.
- Disconnect engine stop cable from stop control lever.
- Shut off fuel supply if the tank or fuel level in tank is above the filter.
- Remove fuel supply tube from inlet of the fuel feed pump.
- Remove oil supply tube from cylinder block and fuel injection pump.
- Remove fuel tube between fuel feed pump outlet and inlet to filter.
Specs & values
- Timing: 26 degrees BTDC stamped on crankshaft pulley
Source: Allis-Chalmers service manual. Steps and values are as documented; always cross-check against the official manual and any later revisions for your exact serial number before servicing.