TM 5-3805-281-24-1
Tests
Turbocharger Boost1--Specification
Pressure ................................................... 152--172 kPa (1.52--1.72 bar)
(22--25 psi) using No. 1 fuel and
no muffler
Rated Engine--Specification
Speed .......................................................................................... 1940 rpm
8. If boost pressure is low, check the following:
9010
Wrong fuel
25
Restricted air filter elements.
10
Restricted fuel filter elements.
Incorrect injection pump timing.
Incorrect fast idle adjustment.
Exhaust manifold leaks.
Intake manifold leaks.
Faulty fuel pump.
Low compression pressure.
Cam lobe wear (valve clearance).
Faulty fuel injection nozzles.
Carbon build-up in turbocharger.
Turbocharger compressor or turbine wheel rubbing
housing.
9. Remove gauge.
Apply thread lock and sealer (medium strength) to
plug.
Tighten plug.
1
Turbocharger boost pressure is reduced by 7% if using No. 1 fuel.
CED,TX14795,4358
1917APR983/3
3-62
