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Allis Chalmers Discussion Forum
:

Points.file..... yes or no?

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loveshisallis

05-08-2008 14:54:03




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Hello;

I got trouble with the FM J magneto on my Model B and wonder...do you file points when you are installing them new ? I was told some where to do that and it seems that they are already pock marked after running only a while. Napa parts, so go wonder I suppose.
Add to it when I filed the old ones thay got marked the same way. thanks




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Den N Ms

05-10-2008 14:02:53




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 Re: Points.file..... yes or no? in reply to loveshisallis, 05-08-2008 14:54:03  
I have used 600-1000 grit wet or dry sand paper folded over to clean points.Then polish up with a strip of index card,dollar bill,brown paper bag.A bad condenser will cause points to arc excessively.



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Dick L

05-09-2008 07:22:08




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 Re: Points.file..... yes or no? in reply to loveshisallis, 05-08-2008 14:54:03  
You can file old points with a (point file) not just a file. New points would never have to be filed. NAPA locally does not carry point files in the store but I can get them the next day. To file points successfully you do have to know what you are filing. You only want to remove the tip that forms at the contact point. If you remove the silver plating they will burn again very quickly. Points will form a coating that can be removed by just passing the file over or even just corse paper over the silver coating. The key is just passing over. Not rubbing until your hand gives out. This is a case where a little is good and a lottle is bad.
If they are burnt bad filing is only a short fix.

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jdemaris

05-09-2008 17:49:14




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 Re: Points.file..... yes or no? in reply to Dick L, 05-09-2008 07:22:08  
I've had to file many new points that had been sitting on shelf for years and got oxidized. Just file enough to get the coating off. I've gotten so I check resistance on any new points I buy - many have been sitting for a long time.



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El Toro

05-09-2008 03:24:05




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 Re: Points.file..... yes or no? in reply to loveshisallis, 05-08-2008 14:54:03  
Take a cotton swab dipped in alcohol and clean them. Hal



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soundguy

05-08-2008 21:10:04




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 Re: Points.file..... yes or no? in reply to loveshisallis, 05-08-2008 14:54:03  
Ditto wha tthe others said.. new points need to stay new.. just clean any oikl of fthem from the manufacturing process.. the paper trick works good.

points that burn fast either are gapped way to close.. or have a bad condensor.

Now.. if you have a bad set of points and need to get a lil more time out of them.. go ahead and file them.. the filed ones won't last as long as the good surface is being removed.. however if already ruined.. not much to loose.

Also.. don't have to file on them like a prisoner getting out of jail. I've found a single clean swipe down each contact is plenty.

emory paper will a number on them to... gotta clean them after you dress them.. or they can end up worse than when you started with micro grit inbetween the contacts

soundguy

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old

05-08-2008 17:16:04




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 Re: Points.file..... yes or no? in reply to loveshisallis, 05-08-2008 14:54:03  
I agree with Bob if the new points go bad fast you need to replace the condenser thats what its job is.



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JMS/.MN

05-08-2008 16:56:42




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 Re: Points.file..... yes or no? in reply to loveshisallis, 05-08-2008 14:54:03  
Can"t imagine why you would file new points. Dad always said filing points is a temporary fix- they"ll burn up faster after that, just a way to get going again for a short time.



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CENTAUR

05-08-2008 16:06:30




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 Re: Points.file..... yes or no? in reply to loveshisallis, 05-08-2008 14:54:03  
If you ever want to remove resistance from a set of points,use a(FLEXSTONE)made by RINCK-McILWAINE,INC.Which are known as (RIMAC)BRANDAny tool company can order loose or carded in one dozen boxes.Order the #2 which is the thin one in #120 grit.These restore old regulators to work like the new original. CENTAUR



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Bob

05-08-2008 15:02:27




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 Re: Points.file..... yes or no? in reply to loveshisallis, 05-08-2008 14:54:03  
NO! Points file = MURDER to points.

"Filed" points NEVER last as long as new points, with the mirror factory finish.

WHY would you want to tear up new points???

If there is a little oxidation on them, draw a clean white piece of cardstock through them a few times to burnish them, then clean the reside off with electrical contact cleaner, and allow it to dry, with the points "open". A blast of clean, dry air is OK, too.

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Dick L

05-09-2008 07:05:08




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 Re: Points.file..... yes or no? in reply to Bob, 05-08-2008 15:02:27  
I wish you would explain that to my tractor. I have one running over ten years on points that I filed. Might be more to filing points than a file and and a set of points.
They didn't make point files to sell more points. I did say (point file) not just any old file. There is a difference.



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Bob

05-08-2008 15:03:30




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 P.S.... in reply to Bob, 05-08-2008 15:02:27  
If the new points are getting pitted, you have a condensor problem.



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