Cummins/Onan — Turbocharger - Replace (03-13)
Repair & overhaul
From a Cummins/Onan service manual covering: K 19, K19, KTA19, KTA19-M, KTA19G2, KTTA19, Kt19. Check it applies to your exact model before use.
Applies to: Cummins/Onan K 19, Cummins/Onan Kt19, Cummins/Onan K19 engine
Before you start
- This assembly weighs more than 23 kg [50 lb]. Personal injury can result.
- These parts are a safety-related item. Be sure the parts are clamped correctly to prevent fretting.
Procedure
- Remove the intake and exhaust pipes from the turbocharger.
- Remove the turbocharger air crossover; remove retaining straps and capscrews; discard o-rings and dust seal.
- Disconnect the oil drain hose.
- Remove the mounting nuts, washers and the turbocharger; discard the gasket.
- Install the gasket (word OUT towards turbocharger), turbocharger, washers and nuts; tighten to 35 N·m [25 ft-lb].
- Position the turbocharger drain tube within 35 degrees of vertical.
- Install the oil drain tube; tighten capscrews to 45 N·m [35 ft-lb].
- Pour 50 to 60 cc of clean engine oil into the oil supply fitting.
- Connect the oil supply hose (AiResearch 45 N·m [35 ft-lb]; Holset 20 N·m [15 ft-lb]).
- Check and adjust air crossover to turbocharger alignment.
- Connect the exhaust piping; tighten V band clamp to 4.0 N·m [35 in-lb].
Specs & values
- Mounting nuts 35 N·m [25 ft-lb]
- Oil drain tube 45 N·m [35 ft-lb]
- AiResearch oil supply 45 N·m [35 ft-lb]
- Holset oil supply 20 N·m [15 ft-lb]
Full service-parts list: Cummins/Onan K 19 →, Cummins/Onan Kt19 →
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.