Perkins — To check the timing of the pin timed fuel injection pump
Maintenance
From a Perkins service manual — check it applies to your exact model before use.
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Before you start
- Do not remove the nut (A2) which retains the hub (A4) to the shaft of the fuel injection pump. The hub is fitted permanently to the shaft.
Procedure
- Set the piston of number 1 cylinder to TDC on the compression stroke, see Operation 8-1 or Operation 8-2.
- Remove the gear cover from the cover of the timing case. For gear driven coolant pumps, remove the coolant pump.
- Insert the timing pin (A1) through hole (A5) in the fuel pump gear and the slot of the hub (A4).
- Push the pin fully into the hole (A3) in the body of the fuel pump; if fully inserted the pump timing is correct.
- Remove the timing pin.
- If the pin cannot be pushed into the pump body, check that the engine is correctly set at TDC on number 1 compression stroke.
- If the engine is set correctly but the pin does not fit, the fuel pump must be removed and set by a specialist.
- Fit the gear cover to the cover of the timing case. For gear driven coolant pumps, fit the coolant pump.
Tools required
- Timing pin Bosch fuel injection pumps 27610032 Amazon
- Timing pin Lucas/Delphi and Stanadyne fuel injection pumps 27610033
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Timing pin position for Lucas/Delphi and Stanadyne pumps is (A1)
- Timing pin position for Bosch EPVE pumps is (B1)
Source: Perkins 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.