I'm new to the forum and I recently picked up a 60 Apache C-10 with a 235 stock engine with 3 speed transmission. And I have a few questions concerning the motor. Forgive me for any dumb questions. But I'm new to these types of motors. And from what I have learned from the threads in this forum (great forum by the way). The oil filter is a by pass type filter located in a cannister on the drivers side of the engine. I have removed the bolt on the top of the cannister but I could not get the lid off. I did not apply to much force to it trying to remove it. I did not want to tear anything up. So do the lids on this types of filters twist off or just pull off ? The next question I have concerns about the oil preasure. The motor seems to run fine with no knocking sounds and very little smoke.. When I first purchased the truck and drove it home it ran pretty good for a truck that had been sitting up for a few years. But it did smoke a good bit. But after running some more gas through it and some carb cleaner the smoke has cleared up a good bit. I replaced the instrument cluster. Now the oil preasure light will come on and flicker a bit until I rev the motor a bit and the light will go out. Could this be due to sludge in the pan, blocked oil sending unit, or pump ? I wasn't going to run the motor anymore until I pulled the pan and valve cover and changed the oil and filter. The oil pan looks like it will be a easy removal, is it ? Most of the time when I tell myself that sometning will be a easy job it turns out to be a nightmare. I have tinkered with newer vehicles, late 60s, 70s and 80s. But never with a 60 model engine. Thanks for any advice or tips you can give