Just finished pulling the 261 apart after a total of about 10 seconds of actual running time. At first glance it appears as if I didn't have the dist. pulled down tight enough to stay engaged in the oil pump. I left it a bit loose so I could adjust the timing. The O-ring under the flange held it up enough to keep it out of the drive. After much measuring with and without the ring, when NOT engaged in the pump there is only .128" gap between the flange on the dist. and the block. There is a lot of vertical play in the dist. shaft.
My assessment of the damage done after 10 seconds of no oil is: the rods and mains look OK, but the piston pins on the two rod caps I have pulled (2 and 5) are seized tight.
