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My 2006 750j engine is heating up when I'm pushing dirt.

Customer Question

I've done everything from washing...

My 2006 750j engine is heating up when I'm pushing dirt. I've done everything from washing out the radiator to replacing the water pump,belt,tensioner,thermostat and have even set the hydraulic fan to run with the engine rpm's (the old fashion way). Anyone have any suggestions?

Submitted: 6 years ago.Category: Construction and Road Equipment

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Answered in 2 minutes by:

6/22/2016

Mechanic: Bradley Martin,

replied 6 years ago

Category: Construction and Road Equipment

Satisfied Customers: 497

Experience: Field Technician at Thompson Tractor Company

Verified

Have you tried flushing out the block? may have a calcium build up in the block causing flow issues.

Customer reply replied 6 years ago

I have done that. The problem started suddenly so I was leaning towards thinking maybe it was an air flow issue but I'm pretty much stumped at this point.

Mechanic: Bradley Martin,

replied 6 years ago

Does yours have the 1025 engine in it?

Customer reply replied 6 years ago

It has 6068 engine.

Mechanic: Bradley Martin,

replied 6 years ago

Are you going by the gauge when you are checking the temp. or using a thermal gun and checking the temp.

Customer reply replied 6 years ago

I've checked it with a temp gun and it is within 5 degrees of what the gauge reads.

Mechanic: Bradley Martin,

replied 6 years ago

Do you know the thermostat is opening up?

Customer reply replied 6 years ago

I put a new one in and it heated just the same as it did before. Having said that I haven't actually seen the thermostat operate.

Mechanic: Bradley Martin,

replied 6 years ago

What does the oil look like?

Customer reply replied 6 years ago

Clean as a whistle and it doesn't lose any water.

Mechanic: Bradley Martin,

replied 6 years ago

I would have to check that thermostat make sure it is opening up and the coolant is circulating.

Have you ran the engine with the cap off make sure the engine is not pressurizing the radiator?

Customer reply replied 6 years ago

It doesn't seem to be. It does have a plastic overflow tank and the level doesn't fluctuate. I guess I was wondering about the fan rpm's but I don't know what they are.

Mechanic: Bradley Martin,

replied 6 years ago

Does this model have a fan clutch or direct bolt to engine?

Customer reply replied 6 years ago

It has a hydraulic driven fan that sits in front of the radiator.

Mechanic: Bradley Martin,

replied 6 years ago

Is the fan motor working?

I would still check the cooling system flow with a temp gun to make sure the thermostat is opening I see on your original post that you set the fan to engine speed the fan motor should run at half of engine speed

Customer reply replied 6 years ago

it appears to be operating correctly. I did have a mechanic friend suggest I check to make sure it was operating at full speed but I don't know what full speed is and it seems john Deere is kind of close with their info.

Mechanic: Bradley Martin,

replied 6 years ago

I will find out what the exact RPM should be can I get with you tomorrow?

Customer reply replied 6 years ago

That would be fine. You can call or text if you want.(###) ###-#### ***** forward to talking to you tomorrow. Thanks

Customer reply replied 6 years ago

Did you find anything out about the fan speed?

Mechanic: Bradley Martin,

replied 6 years ago

No I did not let me opt out see if someone else can help with the fan speed question I know there is a expert on John Deere see I will see if he can help you.

Opting out now he should be with you this evening if not earlier is that ok.

Customer reply replied 6 years ago

OK thanks

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