Briggs & Stratton — To Check and Clean the Oil Pump
Maintenance
From a Briggs & Stratton service manual — check it applies to your exact model before use.
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Procedure
- Remove the base from the engine
- Tilt the engine back and remove the pump by removing the two cap screws that hold it in place
- Place the pump in a pan of oil about 1/2 inch deep and work the plunger up and down; a stream of oil will be forced out of the hole in the pump plunger if the pump is in good condition
- If clogged, remove the plunger and plunger spring and submerge the parts in gasoline or kerosene for three or four hours
- If the pump is still inoperative it should be replaced, Part No. 29669
Source: Briggs & Stratton 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.