Were it my engine I'd squirt some Kroil (http://www.kanolabs.com/) into each cylinder and let it sit for a week or so and then try turning it again.
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Were it my engine I'd squirt some Kroil (http://www.kanolabs.com/) into each cylinder and let it sit for a week or so and then try turning it again.
Have not tried Kroil, but have tried Marvel MO in a stuck TR4 motor. Let it sit for 2 months, it didn't do anything.
And about the valve sizes, the only motors that I am aware of that had larger exhaust valves (than intake) were the early Bugatti motors. Just a fun fact, read somewhere long ago. Saw a beautiful type 57 in Hamilton, NZ a few months back! Sitting right next to a 540K (not the roadster unfortunately) but still one of the most beautiful cars of all time!
The Kroil worked...can now hand turn it. Thanks for the tip!
Awesome - keep the updates coming now!