Detroit Diesel — Install Turbocharger (Pre-lubrication)
Installation
From a Detroit Diesel service manual — check it applies to your exact model before use.
Before you start
- Do not hold the compressor wheel, for any reason, while the engine is running.
- Failure to perform the prelubrication procedure may result in premature bearing failure.
Procedure
- Install the seal ring on the exhaust outlet elbow. Position the turbocharger on the exhaust manifold adaptor and into the exhaust outlet elbow using a new mounting gasket and four bolts, washers and n
- Slide the hose over the end of the turbocharger air outlet opening with the T bolt positioned away from the parting line of the tube. Tighten the two hose clamps so a .017 in feeler gage will pass fre
- Install the oil drain line between the opening in the bottom side of the center housing and the cylinder block. Attach the oil inlet line at the cylinder block.
- Pre-lubricate: clean the area and disconnect the oil inlet (supply) line at the bearing (center) housing. Fill the bearing housing cavity with clean engine oil and turn the rotating assembly by hand t
- Add additional clean engine oil to completely fill the bearing housing cavity and reinstall the oil line. Clean off any spilled oil.
- Start and run the engine at idle until oil pressure and supply has reached all of the turbocharger moving parts (oil pressure gage registers 10 psig or 69 kPa at idle).
- Check all connections, ducts and gaskets for leaks. Operate the engine at rated output and listen for sounds of metallic contact.
Specs & values
- Oil pressure at idle 10 psig (69 kPa)
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.