4 Cycle, Single Valve Restoration
Mfg. 1898 Serial #107
See
Page 1, Page 2, Page 3, Page 4, Page 5, Page 6, Page 7, Page 8, Page 9, Page 10,
for more of the 10 HP Bovaird & Seyfang Restoration project.
Also, Be sure to check out the Single Valve drawing and explanation for the Bovaird & Seyfang...
This photo is of wire brushing the bearing cap to get ready for pouring...
These (2) photos were taking as I was doing a dry run on the set/up for pouring the bearing caps. One thing to note in both of these photos is how the shims touch the shaft. This way the molten babbitt can't get to the bearing underneath the shim and melt it...
In photo #1 the babbitt is getting heated. Photo #2 is of cooking all the moisture out of the bearing caps. Photo #3 is of cooking the moisture out of the dummy shaft. This is all done just minutes before the pour...
Here is the entire set/up ready for the pour. Everything is very hot and all the dumb dumb has been applied, and now for the pour...
The pour is completed. In photo #1 you can see the babbitt on top of the bearing cap. I made a little wall around the hole I was pouring the babbitt in which you can see is full of babbitt. In photo #2 (the lighting is bad) you can see the bearing caps removed and the new bearings. They came out real nice and after I clean them up will look even better...
Now for the dirty job of cleaning the flywheels. I have taken the engine base and skid outside and am going to load the flywheels onto the trailer where I am going to wire brush them and get a coat of primer on them...
These 2 photos are of lapping the intake and main valve. Photo #1 is of the intake valve and photo #2 is of the main valve. They really came out great...
In these 2 photos the valve chest and the bearing caps get more primer ...
I need to finish up the rocker arm and push-rod support bracket. Here I have it set/up in the mill and have started milling a 1/2" wide slot...
Time to start working on the brasses again. In photo #1 you can see one of the brass halves all set up in the drill press and ready for action. Photo #2 shows a 1/2" diameter hole through the brass half that will be 5/8" diameter when all completed...
With all the holes drilled in these brasses, the halves are orientated and are labeled with an "X". They will always go together with the "X"s on the same side...
Get ready, here comes the 5/8" diameter drill...
I am making (2) sets of brasses. One set is for my friend who let me barrow all the parts to copy. His 10 HP Bovaird & Seyfang was missing the brasses. In photo #1 all the holes are drilled in the brasses. Photo #2 shows shims placed between the halves and one set of brasses bolted together ready to get put in the lathe for turning...
In this photo you can see one set of brasses set/up in the 4 jaw chuck and the front face all machined. Notice the little pieces of gasket material I use between the brasses and the chuck jaws so the surfaces don't get marked up...
Photos #1 & #2 show the hole being bored in its early stages where the casting is rough and the cut can be interupted. Photo #3 shows the bore finished to a diameter of 3.239. The brasses are machining up real nice...
This photo shows putting the radius on the bore which will need to mate up or clear the radius on the crank shaft. The brasses need to be flipped in the lathe chuck 180 deg. so the radius can be turned on the opposite side...
Well I took a break from working on the brasses and because the weather was getting nicer I decided to finish up the wire brushing on the flywheels and get a coat of primer on them. Here in these (2) photos you can see the flywheels with the first coat of primer applied...
In these 3 photos you can see I have disassembled the governor assembly and all the latch components so I can prepare them to be painted. The photos also show all the parts wiped down with minerial spirits prior to priming...
These next 3 photos show parts scattered all around the shop with the first coat of primer applied. The parts really start to look nice even with the first coat of primer...
With the flywheels back in the shop, I applied a second coat of primer and will apply 1 or 2 more before I start sanding. They are really starting to look nice too...
See
Page 1, Page 2, Page 3, Page 4, Page 5, Page 6, Page 7, Page 8, Page 9, Page 10,
for more of the 10 HP Bovaird & Seyfang Restoration project.
Also, Be sure to check out the Single Valve drawing and explanation for the Bovaird & Seyfang...
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