Cummins/Onan — Turbocharger Installation
Installation · Turbocharger mounting
From a Cummins/Onan service manual covering: ST-50, T-18A, VT-50. Check it applies to your exact model before use.
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Procedure
- Check oil drain position; drain must be down or within 30 degrees of that position.
- Install gasket and position turbocharger on exhaust manifold flange; mount with capscrews.
- Put Teflon tape on inlet and drain fittings and install in bearing housing at specified torque.
- Install oil drain line from bottom of turbocharger to boss on engine block or oil pan.
- Add 2 to 3 oz [60 cc] of clean engine lubricating oil through the inlet opening.
- Fill the inlet line with clean lubricating oil and connect to turbocharger.
- Install hose connecting compressor air outlet to engine intake manifold connection.
- Install air cleaner and exhaust piping; check crankcase breather condition.
Specs & values
- 2 to 3 oz [60 cc] clean engine lubricating oil through inlet
- Oil drain within 30 degrees of down position
Source: Cummins/Onan 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.