Oil In Radiator (avensis D4-d)

[Leevi Ruotsalainen]

Hi,

My D4-D diesel Avensis (2000) leaks engine oil to radiator, have anyone heard problem like that before? i have tried to fix it, cylinder head job is done,head gasket is ok,turbo is ok..what can it be??

Engine runs ok,no problem with that..

[Q.S.]

Hi,

My D4-D diesel Avensis (2000) leaks engine oil to radiator, have anyone heard problem like that before? i have tried to fix it, cylinder head job is done,head gasket is ok,turbo is ok..what can it be??

Engine runs ok,no problem with that..

Hi, not conversant with the model but does it have a heat exchanger? Often built into oil filter head, sometimes seperate unit, oil passes through one section, water through another. Heat is exchanged from oil to water and vice versa keeping the oil and water at the same temperature.

Because oil pressure is higher than water system pressure, oil passes into the coolant when an internal leak occurs.

[SF695]

My first bet would be the head gasket, but you said that it's ok.

[Leevi Ruotsalainen]

I have bypassed flux of water in oil filters head by external hose and turbos water coolant is bypassed like that too..

No its not head gasket,i thought that too and now engine head is fully repaired,new valves and everything but it didnt help

[Q.S.]

I have bypassed flux of water in oil filters head by external hose and turbos water coolant is bypassed like that too..

No its not head gasket,i thought that too and now engine head is fully repaired,new valves and everything but it didnt help

Not much left but either cracked head or cracked block?