Detroit Diesel — Installation of Straight Tube and Flange Assembly
Installation · EGR straight tube and flange assembly
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- To avoid injury from electrical shock, use care when connecting battery cables. The magnetic switch studs are at battery voltage.
- To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.
Procedure
- Install new delivery pipe hose with two new hose clamps onto the EGR delivery pipe. Do not tighten the hose clamps.
- Carefully slide the new tube and flange EGR valve inlet pipe into the new delivery pipe hose. Do not tighten the hose clamps.
- Position the EGR valve onto the mixer housing with two new O-ring seals.
- If equipped, position the EGR heater plate assembly with new O-ring seal between the EGR valve and new tube and flange EGR valve inlet pipe.
- Using four bolts, attach the tube and flange EGR valve inlet pipe, EGR valve heater plate (if equipped) and EGR valve to mixer housing.
- Torque four bolts in an X pattern to 30-38 N·m (22-28 lb·ft). Reconnect the Engine Harness to the EGR valve.
- If necessary, adjust the location of the delivery pipe hose to ensure a proper fit.
- Make sure the pipes are NOT touching inside the hose. If necessary, adjust the pipes to provide clearance.
- Torque the two EGR delivery pipe hose clamps to 6-6.5 N·m (53-57 in·lbs).
- Reconnect vehicle battery power.
- Start engine and verify repair.
Source: Detroit Diesel 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.