It's crazy how starting just one little project can quickly turn into an open can of worms. In the process of removing and cleaning out Pappy's oil pan, something I did after reinstalling a new oil filtration system, I found that the previous owner had attached the throttle return spring to one of the bolts securing the pan to the block. Clearly, this was a hack job just like everything else on this CJ3B and so I went looking for what should be the correct spring attachment point. And, as I would soon discover, there was none or at least, none that I could see or find. After looking through my Universal Series Service Manual, I found that the Hurricane F-head motor had an "accelerator linkage retractor spring" that attached to a plug on the side of the block. Apparently, this is was a male, square head 1/8" NPT fitting that plugged a port on the oil galley and it had a hole in it that the spring could hook on to. Well, as luck would have it, the plug I found was a replacement female allen head and so it would need to be replaced if I wanted to do this right. Fortunately, I had a male square head plug that I removed from the oil filter inlet line port and just drilled a hole into it. Here are a few shots of what I did.
Here's a diagram of what the accelerator linkage should look like on a Willys CJ3B. As you can see, #15 is the retractor spring and the lower mounting point is the oil galley plug.
This is the male square head 1/8" NPT plug that I recycled and drilled a hole through so that I could attach the spring to it.
After removing the allen head plug, I installed the square head plug and connected the retractor spring.
Here's a shot looking from the top down.
And just like that, Pappy now has a spring back in his pedal or as the Service Manual calls it, "treadle".
Here's a diagram of what the accelerator linkage should look like on a Willys CJ3B. As you can see, #15 is the retractor spring and the lower mounting point is the oil galley plug.
This is the male square head 1/8" NPT plug that I recycled and drilled a hole through so that I could attach the spring to it.
After removing the allen head plug, I installed the square head plug and connected the retractor spring.
Here's a shot looking from the top down.
And just like that, Pappy now has a spring back in his pedal or as the Service Manual calls it, "treadle".