BTC
5.9L 24 Valve Cummins Worksheet
1. What is the turbo boost range?
a. 20 psi
b. 20” Hg
c. 20 mm Hg
d. 20” H2O
2. What is the most common turbocharger failure listed?
a. Coking and bearing failure
b. Coking and turbine shaft failure
c. Wastegate flutter
d. Compressor housing separation
3. What is the maximum allowable endplay of the turbine shaft?
a. 20 psi
b. 20” Hg
c. 20 mm Hg
d. 20” H2O
4. What is the minimum and maximum radial bearing clearance?
a. 20 psi
b. 20” Hg
c. 20 mm Hg
d. 20” H2O
5. How do you check for charge air cooler leaks?
a. Plug the inlet/outlet, pressurize to 100” H2O and check for leaks
b. Plug the inlet/outlet, pressurize to 40 psi and check for leaks
c. Plug the inlet/outlet, insert smoke machine hose and check for leaks
d. Run engine at high idle, spray soapy water on all connections
6. What is the pressure specification to test the sea water side of the after cooler assembly?
a. 20 psi
b. 20” Hg
c. 20 mm Hg
d. 20” H2O
7. What is the maximum air intake restriction allowed?
a. 20 psi
b. 20” Hg
c. 20 mm Hg
d. 20” H2O
8. What is the maximum exhaust restriction allowed?
a. 20 psi
b. 20” Hg
c. 20 mm Hg
d. 20” H2O
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