I am retro fitting a diesel into a 642b that I bought all burned up. I have a couple of questions. How much of a gap is there between the front engine mount plate and the blower housing? Since I did not take this apart and it was burned up. I can't seem to figure out how the right line coming out of the oil cooler is routed. How do I rout the steel line inside the blower housing so I can attach it to the oil cooler? A pic would be great. Thanks