The next job on the engine was/is the Cams. First up was to assemble them. You have to press on the bearing. Again I used the press and found a suitable sized socket that just pressed on the inner race so as not to damage anything. Then, you have have to press on the sprocket carrier, again the same thing so I have not bother to upload another pic.
A little tweak is tack weld the sprocket carrier onto the cam. As the TIG was all set up, I got Dad to TIG it on as it is neater.
I have been dreading the next job. Its not difficult to do, but I just dont like doing it… SHIMS. The first part of this is to assemble up the engine using the old existing shims. Then, to get the length of the new shim, the Cam needs to go in, be clamped down and then the tappet clearance measured.
Then, when all have been measured, and this is not a five minute job itself, the Cam needs to come back out, and the old shims measured. The length of the new shim is then calculated and then they need to be made…. This is the bit I dont like doing…. surface grinding. Fortunately we have a surface grinder, or doing this would be impossible, well to do it to any level of accuracy is impossible anyway and with a good surface finish. Below is a pic of me doing one of the shims.
This is a very time consuming job, and unfortunately I ran out of time before I got it all finished. So this is how the engine stands at the moment, but after this it should all be pretty straightforward.
Tags: Engine
