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Have a 160M grader. Hard starting ,used a lot of oil when we…

Have a 160M grader. Hard...
Have a 160M grader. Hard starting ,used a lot of oil when we got it(1160 hrs)
Warning light for oil pressure came on at 3995 hours. Sent it to shop. Mechanic
Telling us engine is dusted. Hardly any blow by and I cut oil filter in half. Hardly any
Trace of metal shavings. Thoughts??
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Answered in 15 minutes by:
4/14/2014
Mechanic: catmastertech, Technician replied 8 years ago
catmastertech
catmastertech, Technician
Category: Construction and Road Equipment
Satisfied Customers: 3,998
Experience: Field service technician for CAT 19 years.
Verified

catmastertech :

Hello,

catmastertech :

What other factors is he basing the worn engine?

catmastertech :

Dirt in the intake?

catmastertech :

Dirt in the turbo or after cooler?

catmastertech :

Has the oil consumption be verified?

catmastertech :

Compared to fuel use per CAT spec'

Customer: Ser no b9T165
Customer: Dirt in tube after turbo
catmastertech :

Did he find the source of the dirt?

catmastertech :

Hole in air pipe or cracked aftercooler?

catmastertech :

Any history of low power in ECM?

catmastertech :

Operator complaints?

catmastertech :

Has the fuel system seen any issues?

Customer: Engine not experiencing any power loss. Messenger showing 129 low oil pressure faults we shut machine down after we got 1st low oil pressure warning
catmastertech :

How much dirt is in the intake or after cooler? It had to come from somewhere?

Customer: Other than hard starting. Only other problem is intermittent hydraulic response
catmastertech :

Fuel pressure and HEUI pressure ok?

Customer: Slow at times. Then works fine for a while. Then response slows again
Customer: Fuel pressure fine. Mechanic pugged oil pressure on computer ( showing 7 psi idling).
catmastertech :

Does this have the C9 or C11 engine?

Customer: C-9
catmastertech :

Has the HEUI pump pressure been tested?

Customer: Not to my knowledge
catmastertech :

Oil leaks and worn HEUI pump is more common for starting problems on C9 engines.

catmastertech :

Low oil pressure will also starve this pump.

catmastertech :

You should have logged low injector actuation pressure when the oil was low.

Customer: Ok. Got estimate on engine rebuild cost by chance?
catmastertech :

Any damage to this pump and starting pressure will be low. If the mechanic has ET he can quickly see the HEUI pump pressure.

catmastertech :

Not for this type repair. I can only guess, $15,000 for basic over haul.

catmastertech :

You may not need this much repaired though.

catmastertech :

Jugs and maybe a head, if valves are loose.

catmastertech :

This could save more and maybe get it in under $10,000

catmastertech :

Some dealers will not give a full warranty without a complete rebuild and dyno test though.

Customer: Ok well some questions will be asked tomorrow!!! Thank you for you time
catmastertech :

You're welcome. Glad I could help.

catmastertech
catmastertech, Technician
Category: Construction and Road Equipment
Satisfied Customers: 3,998
Experience: Field service technician for CAT 19 years.
Verified
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catmastertech
catmastertech, Technician
Category: Construction and Road Equipment
Satisfied Customers: 3,998
3,998 Satisfied Customers
Experience: Field service technician for CAT 19 years.

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