OK, I believe I understand it now. The piece that runs through the water jacket actually traverses the whole block from side to side. I believe threading the new one into the block, from the push rod side to the driver's side, is better done with two people. One person doing the threading on the passenger's side and another watching from the driver's side to tell the threading person when the far end (driver's side end) of the line is close to the exit hole on the driver's side. Then the driver's side end is connected to the oil distributor. The oil pan does not need to come down for this operation.
Is this what you understand as well, Stuart?
Thanks,
Harrell Sellers
Brookings, SD
