i pulled the oil pan and checked the rod cap and main cap bearings. all in spec, mains .0015 clearance, rods are .003 i did find a cracked pickup tube, which is likely where my low oil pressure was coming from. rotating the engine by hand i cannot see any wrist pin slack, though i am not sure i would be able to see by the naked eye. and i dont see a sleeve moving, all appear to protrude from the bottom of the block the same amount using a feeler gauge with a mark on it to gauge the depth on each one.
i found some more things to replace when i pulled the front axle assembly, so i made another parts order, including a new pickup tube. i was advised my others to rotated the engine before i install the oil pan to be sure the new tube clears the crankshaft.
i am going to reassemble the tractor and run it as is. i may be paranoid about the knock, and not wanting to cause more damage i tore it down to have a look. better safe than sorry. i will get old older fellow that knows these engines well to listen to it after its together and see what they think.
on the list now is oil pan gaskets, new pivot tube and bushing for the axle. maybe i can get the old girl together and take her for a neighborhood spin soon.
then on to the 8N project!!!
i found some more things to replace when i pulled the front axle assembly, so i made another parts order, including a new pickup tube. i was advised my others to rotated the engine before i install the oil pan to be sure the new tube clears the crankshaft.
i am going to reassemble the tractor and run it as is. i may be paranoid about the knock, and not wanting to cause more damage i tore it down to have a look. better safe than sorry. i will get old older fellow that knows these engines well to listen to it after its together and see what they think.
on the list now is oil pan gaskets, new pivot tube and bushing for the axle. maybe i can get the old girl together and take her for a neighborhood spin soon.
then on to the 8N project!!!