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| | | | Joined: Jan 2000 Posts: 21 'Bolter | | 'Bolter Joined: Jan 2000 Posts: 21 | I managed to booger up the threads on my 948R (1938) delco remy generator armature and cannot figure out what size the threads are! The chevy master parts catalog shows it to be 5/8 x 20, but it is wrong. It is bigger than 5/8 and smaller than 3/4. The tool salesmen just look at me like am nuts (a fair assessment).
Anybody know what size die will fix this?
Thanks
One who knows that enough is enough will always have enough. Lao Tzu
| | | | | Joined: Aug 2005 Posts: 6,377 Ex Hall Monitor | | Ex Hall Monitor Joined: Aug 2005 Posts: 6,377 | It's metric believe it or not. I don't remember the size but it is metric. I had the same problem on my 38 coupe.
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| | | | | Joined: Jul 2003 Posts: 31 Junior Member | | Junior Member Joined: Jul 2003 Posts: 31 | Try using a metric and/or std thread gage to find the correct size | | | | | Joined: Apr 2005 Posts: 2,832 'Bolter | | 'Bolter Joined: Apr 2005 Posts: 2,832 | Do as Wayne said, most tap and die sets have a thread guage with them. If you find the thread count and measure the shaft diameter that will tell you what die you need to restore the threads. If it is an 11/16, find one near you that restores old fords because they used 11/16 threads (R&L hand) on the tie rod ends. If you have a lathe or know someone that does, once you know the thread count you can set the lathe up to cut threads. On existing threads you must put the lathe in gear FIRST and then set your thread cutting tool to where it is in existing groove. If not, you'll destroy the remaining threads. I think most old time generator shops could do this for you. Good luck
Evan
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