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9929419 R02 - 2018-2019 RZR XP / XP 4 Turbo S Service Manual

3.27

19.Inspect turbine housing profile and turbine housing

discharge cavity / pipe for signs of any oil residue.

NOTICE

If excessive oil residue is seen in the turbine housing

discharge or exhaust components, remove

turbocharger and perform further inspection.

20.Inspect turbine inlet runners

for the presence of oil

residue. Inspect compressor discharge outlet

for

any oil.

NOTICE

If an excessive amount of oil is present in the turbine

manifold inlet runners or cylinder head exhaust ports,

the source of oil is likely engine related.

If an excessive amount of oil is present in the

compressor inlet, the source of oil is likely related to the

crankcase ventilation system.

21.A compressor side oil leakage issue is likely if oil is

present in the compressor discharge, but not in the

compressor inlet. Similarly, it can be assumed a

turbine side oil leakage is likely if oil is present in the

turbine discharge outlet, but not in the turbine inlet

runners / exhaust ports.

NOTICE

Inspect the exhaust port flange surface for any signs of

pre-turbine exhaust leakage.

CAUTION

If you are replacing the turbo, put some new engine oil

down the supply hole and rotate turbo by hand. Do NOT

use compressed air.

ENGINE / COOLING SYSTEM

Polaris RZR XP User Manual

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