General Motors — Oil Pump Reassembly & Installation
Repair & overhaul
From a General Motors service manual — check it applies to your exact model before use.
Procedure
- Install pump gears into pump body with marked gear teeth indexed. If pick-up tube was removed, apply sealant to tube end. Tap tube end into pump using plastic hammer. Reassemble remaining components i
- Prime oil pump with engine oil. Install pump and extension shaft, ensuring slot on top of extension shaft engages with drive tang on end of distributor shaft.
- Tighten oil pump bolt to specification. Install oil pan.
Tools required
- plastic hammer Amazon
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Tighten oil pump bolt to specification.
Source: General Motors 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.