Operation And Care For Turbocharged Engine - Isuzu 4BG1 Instruction Manual

Fig. 15
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OPERATION AND CARE FOR
TURBOCHARGED ENGINE
Engine Starting
The warming-up operation of the engine should be done in the
way separately described. In addition, ensure the bearings
supporting the rotating parts of the turbocharger are sufficiently
lubricated.
Do not race cold engine.
When starting the engine after a long period (more than one
month) of standing, proceed as follows:
Pour engine oil into the turbocharger through the oil inlet port
with the air intake duct and oil inlet side pipe removed. Then
turn the impeller by hand to thoroughly lubricate the bearings.
When pouring oil in, do not allow dust particles and other
foreign materials to enter through the opening.
On completion of this operation, securely install the oil pipe and
air intake duct.
Engine Stopping
Whenever stopping the engine, the last about 3 minutes of
operation should be at idle. After hard operation, at least 5
minutes of. operation should be at idle until the turbocharger
cools down. This allows the turbocharger to return to idle speed
while engine oil pressure is available for lubrication.
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