The stator was also missing but the engine was running it you had a charged battery.A month ago when the 4118AH was purchased there were some Onan's in the weeds.
Never look a gift horse in the mouth.
Spike.
646-75lbh restore
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Spike188
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Re: 646-75lbh restore
Another setback this morning. This motor had an "what did they do that for" point box on it. The stator was also missing but the engine was running it you had a charged battery.
With what is know about this engines history and the overall condition of the 646B it came from, cam condition should have been expected.
The points lobe had galling on the lead in of the cam on both sides. My first though was remove the points and change over to electronic ignition. Further inspection of the other lobes reveled a slight imperfection on the back side of on lobe. Well there goes the dream of finishing it this week. Can you say Debbie Downer?
A month ago when the 4118AH was purchased there were some Onan's in the weeds.
This one not only has a good cam, but also a few other parts that will be useful.
Never look a gift horse in the mouth.
Spike.
The stator was also missing but the engine was running it you had a charged battery.With what is know about this engines history and the overall condition of the 646B it came from, cam condition should have been expected.
The points lobe had galling on the lead in of the cam on both sides. My first though was remove the points and change over to electronic ignition. Further inspection of the other lobes reveled a slight imperfection on the back side of on lobe. Well there goes the dream of finishing it this week. Can you say Debbie Downer?
A month ago when the 4118AH was purchased there were some Onan's in the weeds.
This one not only has a good cam, but also a few other parts that will be useful.
Never look a gift horse in the mouth.
Spike.
Spike Colt - 9 & 10, Case - 108, 118, 444, 446, 448, 646, 646bh, Ingersoll 4016, 4118AH
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Spike188
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Re: 646-75lbh restore
The donner camshaft is from a JD 318, and a newer series of engines. The lobe lifts are a lot higher than the CCKA cams. 
The options now are finding a good camshaft or using the old one with electronic ignition.
Any suggestion?
Spike
The options now are finding a good camshaft or using the old one with electronic ignition. Any suggestion?
Spike
Spike Colt - 9 & 10, Case - 108, 118, 444, 446, 448, 646, 646bh, Ingersoll 4016, 4118AH
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Eugen
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Re: 646-75lbh restore
If the profile of the lobe is mostly the shape it should have and only local parts are pitted or gauged, would it not be possible to fill in with some welding and file it back into a smooth finish of the right shape? I would not do that to the valve cam lobes, but the points shaft doesn't put a lot of pressure on the lobe.
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Spike188
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Re: 646-75lbh restore
Boomer to the rescue! He shipped me a NOS cam, intake valve and guide today. Now the pistons and crank will come back out to have the valve and seat ground.
Spike
Spike
Spike Colt - 9 & 10, Case - 108, 118, 444, 446, 448, 646, 646bh, Ingersoll 4016, 4118AH
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Eugen
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Re: 646-75lbh restore
That is good news Spike! What are you cutting the valve seats with? I ordered a tool from India 3 months ago and it never came
I had mine done by Mike.