Hello,
I have only owned this 1965 BJ 8 for a year, purchased it with 2000 miles on a rebuilt motor, however the motor was done 15 years ago. The motor has been run every year, the car was driven every year. I have driven the car aprox 4000 miles since buying. Yesterday I noticed oil in the coolant , the eng oil is perfectly clean. I saw some oil in the coolant a few months ago, just assumed it was residual rust etc from all the sitting the car has done, guess i was wrong.
Compression was 130-135 in all cylinders, the car ran great, with lots of power.
I pulled the head off today, and was hoping something obvious would show up, cleaned the block surface, it is dead flat, can see some stains around the oil passage hole leading to the head, maybe that is where it is leaking. The head looked the same, I took the head to my local machine shop for inspection just waiting for his report. The block and rad had at least 1-2 litres of oil mixed with coolant **** of a mess to flush.
I am aware of a block repair kit for the main gallery, looks like it may be hard to source if needed.
I filled the block with water and closed off the oil feed, made a fitting for my air hose and attached it to the main oil gallery plug. Pressure tested the oil line to 60 psi ( high as my air reg would go} and looked for bubbles in the water jacket holes, nothing showed.
When I search through the archives, it seems to be a bit of a mystery, the fix is mill the head install new gasket thats it, hoping that is all i need.
Any ideas would be helpful, also do you thing my pressure test worked.
Thanks
Phil
I have only owned this 1965 BJ 8 for a year, purchased it with 2000 miles on a rebuilt motor, however the motor was done 15 years ago. The motor has been run every year, the car was driven every year. I have driven the car aprox 4000 miles since buying. Yesterday I noticed oil in the coolant , the eng oil is perfectly clean. I saw some oil in the coolant a few months ago, just assumed it was residual rust etc from all the sitting the car has done, guess i was wrong.
Compression was 130-135 in all cylinders, the car ran great, with lots of power.
I pulled the head off today, and was hoping something obvious would show up, cleaned the block surface, it is dead flat, can see some stains around the oil passage hole leading to the head, maybe that is where it is leaking. The head looked the same, I took the head to my local machine shop for inspection just waiting for his report. The block and rad had at least 1-2 litres of oil mixed with coolant **** of a mess to flush.
I am aware of a block repair kit for the main gallery, looks like it may be hard to source if needed.
I filled the block with water and closed off the oil feed, made a fitting for my air hose and attached it to the main oil gallery plug. Pressure tested the oil line to 60 psi ( high as my air reg would go} and looked for bubbles in the water jacket holes, nothing showed.
When I search through the archives, it seems to be a bit of a mystery, the fix is mill the head install new gasket thats it, hoping that is all i need.
Any ideas would be helpful, also do you thing my pressure test worked.
Thanks
Phil