Oil Pump Dyno

[pbf777]

 
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[Blueoval77]

There is indeed one unused hole that could be used to register the thing but not much else thats reliable. Pinning would of course make them unique unless a fixture was made  . I have a huge hunk of cover sitting here now I just have to make a drill guide on the lathe for the center hole then decide on making the new rotor shaft all the same OD or make the bottom larger so when the rotor is pressed down it stops at the desired depth. . This one of course will get its four holes punched in to match the cover I have and then bolted down and the center hole for the shaft bored.
I take it the consensus on cover clearance for the rotor is just shy of touching ?
Its still a bit rough... But it will smooth out

[427John]

     
[/quote]

When i say to soft metal in the cover i don't talk about it bowing of the pressure but to soft so
the rotor galling the cover. The reason i used to make a thicker cover was to minimice the warpage
from heat treating. I don't know the terminology in English, but you "carb" the surface to get a really
hard surface then grind it therefor you cant have much warpage because the hardness just go so deep
[/quote]Are you talking about carburizing?I believe thats the process where its heated with a oxy aceteline torch and then they cut the oxygen back and play the sooty flame over the surface?

[Heo]

     

When i say to soft metal in the cover i don't talk about it bowing of the pressure but to soft so
the rotor galling the cover. The reason i used to make a thicker cover was to minimice the warpage
from heat treating. I don't know the terminology in English, but you "carb" the surface to get a really
hard surface then grind it therefor you cant have much warpage because the hardness just go so deep
[/quote]Are you talking about carburizing?I believe thats the process where its heated with a oxy aceteline torch and then they cut the oxygen back and play the sooty flame over the surface?
[/quote]

Yes you can do it by hand that way. At the boltfactory it was done in owens with a high carb atmosphere on selftaping screws
and things like that that needed a hard surface
 
You can also heat the object orange, rub it with Cow hooves and quench in water. Thats the old blacksmith way,and it does not smell like strawberries. The burning hooves carburize the surface. It is most practical to remove hooves from the cow first

[wowens]

"You can also heat the object orange, rub it with Cow hooves and quench in water. Thats the old blacksmith way,and it does not smell like strawberries. The burning hooves carburize the surface. It is most practical to remove hooves from the cow first "

I tried that method once, cow kept kicking me. Now I feel stupid.
That's funny Heo !

[Blueoval77]

Slight difference between the two.

[Barry_R]

You can also heat the object orange, rub it with Cow hooves and quench in water. Thats the old blacksmith way,and it does not smell like strawberries. The burning hooves carburize the surface. It is most practical to remove hooves from the cow first

I think you have just won the internet!

It's gonna take me at least a couple hours to get over that one...     

[Royce]

Actually if you look at an old gunsmithing book on how case hardening is done, you put strips of leather around the part then heat it in a sealed container.. Now a cow hoof.. That must be a Scandinavian thing  lol.. I'll ask some of the old Swede blacksmiths around here about that

[WConley]

I think you have just won the internet!

That one made me spit up my coffee a little bit 

[475fetoploader]

Do you remove all 4 hooves at the same time, so they don’t limp?

[Heo]

Actually if you look at an old gunsmithing book on how case hardening is done, you put strips of leather around the part then heat it in a sealed container.. Now a cow hoof.. That must be a Scandinavian thing  lol.. I'll ask some of the old Swede blacksmiths around here about that

Well there is several ways to carb the surface. I come from a long line of blacksmiths so
i have some literature and mouth to mouth learned tricks but dont want to take this tread
hostage with that. But  here is one, the perfeckt aneal temperature for a spring is when
you rub a piece of birsch against the spring and it feels slippery

[Heo]

Do you remove all 4 hooves at the same time, so they don’t limp?

Well i usualy start with removing life from the cow

[Heo]

You can also heat the object orange, rub it with Cow hooves and quench in water. Thats the old blacksmith way,and it does not smell like strawberries. The burning hooves carburize the surface. It is most practical to remove hooves from the cow first

I think you have just won the internet!

It's gonna take me at least a couple hours to get over that one...     

 

[427John]

That's some funny stuff,but it's also kind of cool it makes you wonder what kind of stuff they tried to use to treat metal in the old days,and how did they find out about it by accident or trial and error?

[Heo]

That's some funny stuff,but it's also kind of cool it makes you wonder what kind of stuff they tried to use to treat metal in the old days,and how did they find out about it by accident or trial and error?

I have thoght that way through the years, How and why did they found out