Can anyone tell me how much the oil pan drive shaft should stick out above the "baffle" in the distributor hole on a 400. Took out the distributor to rebuild/recurve and was off a tooth on the first stab reinstalling. Pulling it out to adjust the oil pump shaft hung up on the distributor and pulled up half an inch or so and rode up on the pump drive. I turned in a little by hand and it dropped back down but now I cannot even get the distibutor to engage. It sticks up a good inch and I have spent a couple hours trying to reinstall turning the pump shaft with screw driver. Just wanted to make sure I did not actually drop the pump shaft off the drive. Thanks