Kohler KD27V12 — Fitting the HP pump
Repair & overhaul · High pressure pump
For the Kohler KD27V12, from the Kohler service manual.
Applies to: Kohler KD27V12, Kohler KD27V12 engine
Before you start
- If the angle has not been set correctly, the Diesel engine does not develop its full rated power.
Procedure
- Fit the turning device [10123791].
- Ensure that the 1st cylinder is in ignition TDC.
- Position the shaft's oil feed bore horizontally.
- Replace the O-rings, oil and insert into the grooves.
- Install both HP pumps starting from the bottom at a 45° angle without twisting the shaft.
- Remove the protective caps from the fuel feed and return lines.
- Replace O-rings and screw connection.
- Connect connecting lines.
- Remove the inlet manifold.
- Remove the HP pumps' drive cover and remove the gear.
- Fit the torque angle gage [10023839] with attachment on the gear.
- Rotate the gear 135° clockwise, measured at the torque angle gage.
- Remove the torque angle gage with attachment.
- Fit the gear and tighten hex screws.
- Replace gasket, fit the HP pumps' drive cover and tighten hex screws.
Tools required
Tool links are Amazon searches (affiliate links); manufacturer special tools may only be available from a dealer.
Specs & values
- Gear rotation 135° clockwise
- Socket head screw M10x30-10.9: 15 Nm, 68 Nm
Full service-parts list: Kohler KD27V12 →
Source: Kohler 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.