Re: Coolant leaking into oil, water pump issue or worse?

Posted by d c On 2020/12/11 10:53:29

So the head is off now. You can continue to do this test multiple times over several days. I would do this with the oil drained from the pan with plug in. Topping off the water each day and rotating the crank by hand to set different cylinders to bottom of stroke. Each morn check what is in the lower cyl and what is in the pan. When you removed the head were all the piston tops black carbon covered? Were there any CLEAN ones? Since the head is dry on these you won't be looking for cracks in the head between the valves as is common. Check for cracks near head bolt threads to cyl. Check for cracks down low in cyl bores. Don't discount rust deterioration in these blocks . Any blocks this old can be rusted thin from the inside.