John deere 650j high oil pressure and sputtering

[Btad]

I have a 2007 jonh deere 650j
It started sputtering I noticed the oil pressure was really high
I tested it with a test set at ide it was 65 psi
New oil and filter no change
I was going to remove and check the oil regulator
I thought I had a complete service manual but I guess not
I can not find the location
The serial is
t0650jx139568
Any suggestions would be greatly appreciated
Thanks all

 

[Diesel Dave]

Engine serial # PE4045H648321 model 4045HT050 .
The oil pressure regulator valve is under the timing cover and not accessible from the outside.
.

https://partscatalog.deere.com/jdrc/sidebyside/equipment/57341/referrer/navigation/pgId/670535873

.
Whats with the sputtering, starving for fuel ?
Any codes ?

 

[Btad]

No codes
I know hitgh oil pressure can cause sputtering
I am hoping it is just a bad oil regulator
And not a plugged iol gallery
Any thoughts would be greatly appreciated

 

[Diesel Dave]

I know hitgh oil pressure can cause sputtering

That’s a new one for me !

 

[Btad]

At least in Gas eingens
Not sure about deisel

 

[Diesel Dave]

I can’t think of anyway high oil pressure would affect this Deere engine performance.
Is the sputtering a new problem ?
What have you tried so far to fix it ?

 

[Btad]

It started a few weeks a go
It has not been used much sens
i started acting up after it warmed up
It would idel perfect but but as soon as you start to increase rpms
The faster the reps the more is sputters
Crank sensor
Fuel filter
Eingen speed control
It has full power when sputtering
Any thouts

 

[mg2361]

The oil pressure is not your issue. That machine has a Stanadyne DE10 electronic injection pump. You first want to make sure you have a good fuel supply and pressure to that pump. If it is starving for fuel, that can cause your issue.

Press and hold the menu button for 5 seconds with the key on until the words SERVICE MENU appear in the display. Then scroll to codes. Post any active or stored codes.

 

[Nige]

He’s changed a fuel filter element but has he done anything regarding the tank, fuel lines, and cleaning the passages in the fuel filter head. Until all that is ticked off I wouldn’t suggest doing anything else.

I know hitgh oil pressure can cause sputtering

Thanks for giving me the best laugh I’ve had all week.

 

[Btad]

There are no codes
I checked fuel up to the filter I will check it at the injection pump to day
the high oil pressure started and sputtering at the same time
My big fear with high oil pressure is some part in the eingen is not getting oiled
Are there any valves that require oil pressure to operate?
Much like variable valve timing in cars
I have seen this cause problems
65 psi at ide says dangers catastrophic eingen damage coming soon

 

[Btad]

He’s changed a fuel filter element but has he done anything regarding the tank, fuel lines, and cleaning the passages in the fuel filter head. Until all that is ticked off I wouldn’t suggest doing anything else.

Thanks for giving me the best laugh I’ve had all week.

Believe it or not I have had a variable valve timing with a pluegd oil passage caused all sorts of problems
I will check the complete fuel system today
Should I not worry about the high oil pressure
Thanks for all the help from the group

 

[Nige]

When you are attempting to diagnose what appears to be a fuel problem it’s always best to start the diagnostic journey from the same place that the fuel starts, i.e. the tank, and work forwards. Does the tank have a drain valve for removing water & sediment.? How long since it was last opened, etc, etc.?

Don’t forget to disassemble the head assemblies from all the fuel filters, remove all the fittings, and blow air or run a piece of wire through every passage. You may get some surprising results, but even if you don’t at least you have ticked the boxes.

Diagnostics is nothing more complex than eliminating things one at a time in a logical order until the root cause of the problem is found, and starting from the simplest most inexpensive things can potentially save you a lot of cash.

 

[Nige]

Believe it or not I have had a variable valve timing with a pluegd oil passage caused all sorts of problems

I’ll bet that wasn’t on a diesel engine though.?

Should I not worry about the high oil pressure

If the 65psi at idle that you measured was with the engine cold I wouldn’t think so. At normal operating temperature the answer might be a bit different. Caveat, that would be on a Cat engine. I stand corrected if it’s not the case on yours.

 

[Btad]

I most definitely agree and will do as you suggested
And I know I am betting a dead
Should I be worried about the high oil pressure if I find a problem in the fuel system and fix it
Thanks for putting up with all the stupid?

 

[Btad]

I’ll bet that wasn’t on a diesel engine though.?

If the 65psi at idle that you measured was with the engine cold I wouldn’t think so. At normal operating temperature the answer might be a bit different. Caveat, that would be on a Cat engine. I stand corrected if it’s not the case on yours.

The eingen temp was about 90f
So not hot
Even in the middle of winter it would never peg the needle

 

[Nige]

Should I be worried about the high oil pressure if I find a problem in the fuel system and fix it

I suggest that the JD specialists need to answer that.

 

[Nige]

The eingen temp was about 90f
So not hot

See what the oil pressure is like with the coolant temperature at 190-200 would be my thoughts.

 

[Btad]

I suggest that the JD specialists need to answer that.

Specs are 15psi at ide and 40psi at wide open

 

[Nige]

Specs are 15psi at ide and 40psi at wide open

But I would imagine that the pressure specifications would be for measurements taken with the engine at normal operating temperature, which by your own admission your engine most certainly was not when you took that reading.
I would also suggest (it certainly would be if it was a Cat engine) that the oil pressure specifications are minimum acceptable values.

 

[Btad]

It pains me to say you are right Aging lol
I wish I had 10% of your experience with heavy equipment
I will let you know about the fuel system in a few hours
Thanks again for trying to keep me going in the right direction I know it is hard at times