Stuck with a DIY obsession, a need for specialty tools, and full machine shop access at work I made quite a few tools to aid in rebuilding my engine. Many of these were simple presses/drifts to help get bearings in and out but some were more complicated.
Cam bearing installation tool
The mini has three different sized bearings for the camshaft which all need to be carefully pressed in. I found some plans online and made the pieces. Each press is threaded so that it can be drawn through with threaded rod. In addition there is a guide sleeve to help keep things centered. I turned all of these at work out of aluminum.
They worked fantastic!
Connecting Rod Balancer
In order to balance connecting rods, a stand is need so that each end can be measure independently. Here is the stand:
|Vertical support showing two thrust bearings and the linkage|
The big end is held using a plug with two bearings in the center. This mounts to the stand via a pivoting bracket that is height adjustable. This allows the rod to move in two degrees of freedom. The little end is held on a dowel pin mounted to stand that sits on the scale.
This stand worked well but was fairly sensitive to the distance between the stand and the scale. In the future, I think that a bearing on the little end support would help eliminate this.