


With the (2) motors next to each other I started swapping over all the items that made sense. The upper and lower water necks were a size smaller so I wound up swapping them over as well.

The I ran into another small road block. I needed to swap the tach drive over for the mechanical tach. Once I removed the rear driver side 5 hole cover from the original engine, I realized the tach drive was cracked...

The drive itself is threaded at 3/8”x24. I was able to compress the crack and get a nut over it, but when I tried to remove it, it broke clean off. In the meantime I had ordered a new one and already installed it but didn’t realize it was a different design. My mistake, I should have looked closer at it before I installed it. After a quick post on the DD group on FB, the general consensus was to use a flat plate with a hole drilled in it and then tight a 3/8”x24 nut to draw it out OR use a slide hammer. But when I tried the flat plate, I broke the new one off in the new motor. At that point I dug out my slide hammer and made an adapter to pull it out. Our hardware store didn’t have any 3/8”x24 threaded rod couplers (only 3/8”x16) so I welded (3) 3/8”x24 grade 8 nuts together. Fortunately there was enough thread left on the new one to pull it out. But I was sweating it out for sure...
This was late Friday night and I was all ready to set the new motor in on Saturday. But I really didn’t want to put the motor in without the tach drive since I knew it would be a challenge since it would be close to the firewall. At that point I decided to try an pull the old broken one out of the original motor. So I filled the hole in the block with an old welding coat and welded a 3/8”x24 bolt to it, The using the slide hammer I was able to pull it out. My thoughts were that I would be able to repair it somehow...

Then I remembered that Joe D might have one and sure enough he did!!! I was able to remove it from the motor with the slide hammer and install it in the new motor by 7:30 the next morning. What a relief.........

More to follow...