Daewoo — Injection timing adjustment
Adjustments · Injection pump
From a Daewoo service manual — check it applies to your exact model before use.
Before you start
- Do not overtighten delivery valve holder.
Procedure
- Check crankshaft pulley TDC mark alignment.
- Remove injection pump fixing bolts.
- Disconnect No.1 injection pipe.
- Remove delivery valve holder, spring, valve seat, delivery valve.
- Reinstall holder and tighten to 4~4.5 kg.m.
- Turn pump body clockwise, then reverse until fuel stops flowing.
- Lock pump; retighten coupling bolts.
- Reinstall internal parts and No.1 injection pipe.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Injection timing: DB33 18° BTDC, P034TI 13° BTDC
- Delivery valve holder 4~4.5 kg.m
- Injection pipe nut 3~3.5 kg.m
Source: Daewoo 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.