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JoelT

New Member

• Mar 29, 2023

• #1

Hi! So, did some research and seemed tuhat common problem is the failure of the fuel cooler unit. Was able to order used part. Replaced it, still Diesel in cooling. After that unplugged the unit from Diesel flow and cleaned the cooling system from diesel and still the problem exists. Only one thing comes in mind after that: crack in the endine block?? Oil is clean.

 

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lynall

Well-Known Member

Full Member

• Mar 29, 2023

• #2

Cyl head issue of some sort, do the injectors have sleeves/seal/orings?

 

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JoelT

New Member

• Mar 29, 2023

• #3

Yes they have seals. But the oil level is not getting bigger. Oil looks clean with no Diesel in it. Overall the engine works supersmooth and good.

 

v8250

Well-Known Member

• Mar 30, 2023

• #4

@JoelT , what radiator do you have fitted? Is it the combined coolant and oil cooling radiator? If so, there a good chance this has rotted through bottom RHS and the coolant is mixing with oil, and visa-versa. Drain coolant and oil from rad and pressure test to prove good or not.

 

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JoelT

New Member

• Mar 30, 2023

• #5

Thanx for the reply. As i mentioned before, oil looks superclean and oil level is stabile!

 

nobber

Well-Known Member

• May 6, 2023

• #6

19j doesnt have a fuel cooler thingy.