Detroit Diesel — Installation of Oil Pan
Repair & overhaul
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- To avoid injury from inhaling engine exhaust, always operate the engine in a well-ventilated area. Engine exhaust is toxic.
- NOTE: If oil pump was removed, follow section 1.6 "Priming the Oil System."
Procedure
- When a plastic pan is used, insert the raised lip portion of the seal into the groove in the oil pan. Press down on the isolator seal and insert it completely around the oil pan; do not stretch or bun
- For the aluminum pan, place the gasket on the top of the pan.
- Reapply Loctite® 5970 or equivalent to the four corner squares in gasket.
- Install the eighteen oil pan bolts and sleeve assemblies through the pan rail into the gaskets holes.
- Ensure the joint surfaces of the gear case and the cylinder block are cleaned and there is no damage that could prevent sealing.
- Install the oil pan assembly in position on the cylinder block.
- Ensure that the seal has not been disturbed. Torque the eighteen oil pan bolt assemblies to 20 N·m (15 lb·ft) using the proper sequence.
- Install the oil pan drain plug and torque the plug to 45 N·m (33 lb·ft).
- Install bolt at harness P-clamp on front center of oil pan.
- Install dipstick tube fitting if removed from pan and torque to spec listed in Table 1.
- Install dipstick tube on fitting and tighten clamp.
- Install dipstick.
- Install oil filter & cap. Torque to 55 N·m ±5 (40 lb·ft ±5).
- Refill the crankcase with lubricating oil.
- Start the engine and inspect for leaks.
Specs & values
- Oil pan bolt assemblies (eighteen): 20 N·m (15 lb·ft) using the proper sequence
- Drain plug: 45 N·m (33 lb·ft)
- Fitting to pan M20x1.5: 60 N·m (44 lb·ft)
- Fitting to pan M22x1.5: 70 N·m (51 lb·ft)
- Fitting to pan M27x1.5: 90 N·m (66 lb·ft)
- Fitting to pan M30x1.5: 100 N·m (73 lb·ft)
- Oil filter & cap: 55 N·m ±5 (40 lb·ft ±5)
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.