The Jalopy Journal
It's been awhile what with summer activities and all but I've still put some time in on the engine. I finished the exhaust manifolds and a...
Hi Ebbspeed, I use black Delrin. It machines nicely and has good electrical properties.
The distributor will be a Hall trigger type with an electronic ignition. It will be driven off the end of the cam by way of helical gears that I...
Up next are the breather tube, generator and brackets, fan and pulley and the distributor. Making all the small parts takes as much time as some...
It's been a long time since posting but I'm making good progress on the engine. The block and internals are all finished except the piston rings....
Gentlemen, I made a couple of videos of all the parts to date. It just includes everything I have shown here but is a little more interesting to...
Gentlemen, The crank is finished. I spent the better part of today, burring, filing and polishing but it was completed without incident, oh yes...
The crankpin was brought to TDC by using an adjustable parallel under the 2 crankpins that are at 90 degrees. Picked up the centerline and then...
Today's venture was the oil holes. I cleaned the mill table and mounted my angle milling table. I set the angle close with the vernier scale and...
All the milling is compete on the crank. All that's left to do is drill the oil holes but I'll have to set up the angle table to do that. The...
All of the counterweights were cut. I have a casting of a V-8 crankshaft that I'm using as a model to do the counterweights. Each set of throws...
I set the fixture up on the mill and indicated it parallel to the X axis. I found the easiest way to true up the faces to be cut was to use an...
I finished the holding fixture so I can cut the counterweights and drill the oil passages. I have used the same aluminum plate that I started...
All the turning is finished, whew!!. Normally when cutting the throws it's necessary to put some packing between the webs that have already been...
With the fixture block set true the crank stock was mounted and locked in place with the set screw. The tailstock block was slid onto the end of...
The driving fixture block was mounted in the four jaw chuck and indicated. I made up a brass bushing with a .50 hole in it to accommodate the end...
All of the mains were cut leaving .006 for the possibility of warpage after the throws are all cut. The blank was then put back into the mill vise...
Next up is the crankshaft. Since I discovered 1144 steel I make all of my crankshafts from this material. It cuts great and the nicest part is...
All that remained as far as machining goes was to make the cover plates for the runners. The runners had been machined 'to the numbers' when they...
With all the milling complete it was time to start all the hand work. First up were small burrs in a flex shaft to whittle away excess material....
The plan for the manifold is to make it look like a dual plane type but in reality it will only be a single plane but with only 4 cylinders being...
Now came the time consuming work, stepping off around the fuel pump pad, the breathe neck boss and the generator bracket. This involved multiple...
The next step was to set the angle table back up to cut the angled walls over the outside edges of the runners. [IMG] [IMG]
The part was then put back in the vise to start sculpting the outside shapes. At first everything was roughed leaving .02 on each wall until there...
The next step was to start roughing out the outside shape so the part was put back in the vise at 90 degrees and the area around the runners was...
The next piece up is the intake manifold. The original plan was to paint the engine when finished so with that in mind I was going to make the...
With the shapes on the two ends milled the remaining stock was cut with the bandsaw and then milled to depth. This pan has three different levels....
With all the internal surfaces finished it was time to start on the outside. The front area would be the first because of the complex shapes. On...
Once the cavity was roughed out the intricate job of stepping off all the radii and shapes started. The most complex areas was at the front of the...
The next large piece is the oil pan. This started from a very large block of 6061 aluminum. This is one of those pieces that will have more metal...
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The Jalopy Journal
