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8N front mount distributor replacement

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JMOR
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PostPosted: Mon Jul 27, 2020 3:22 pm    Post subject: Re: 8N front mount distributor replacement Reply to specific post Reply with quote

CVPost-Ron Petterson wrote:
(quoted from post at 17:26:31 07/27/20) 32..I have replaced condenser, but not each time.

Once running, the tractor runs smooth, idles way down to a very slow idle well and not "missing" at high
speed. Does not "bog" down while using bushhog or plow.

The issue since the 90's is a starting issue after use, which I said started out as an every 6 mth issue
or 50-75 hours of run time. Cold or hot, no difference. As the years went by, the time between "no
starts" got shorter. so I posted question in the mid 2000's asking about electronic ignition. Was told by
many they are not good alternative for 6V system.So did not convert.

So now it is happening regularily and I asked about replacing distributor and received much info, which I
responded to, including voltage and amp readings and checking other stuff. Replacing distributor was not
recommended. So after receiving the various info, I pulled the distributor and checked the condenser. It
read 2.0 constant on my ohm meter, did not increase as it seems it should.

So with all the info I have received and after looking at distributor closely, I am going to replace
breaker plate as it is scored and chipped ( like filed small "v's" around the top edge) at the area where
the rotor attaches to the cam, and installing all Blue Streak components as recommened. Points,
condenser, distributor cap. And I ordered a front bushing in case the breaker plate does not have one,
which it should. When setting pounts or inspecting cam, there is no visable horizontal movement within
the bushings.

JMOR gave me the best advice. Your stupid, forget it!

But stupid is trying to fix something that is not readily apparent as to the cause. So that is me. Would
be much easier if some ohm reading was way off.

Thanks for your assistance!
Those are your words, not mine! You make helping difficult by not answering questions directly. I ask for measurements including under what conditions, where, etc. and get, " I have checked the resistor, the coil etc and if I remember correctly I was getting 6.25 volts
anywhere i checked and 1.0 to 1.5 reading on the ohm meter with the settings at the smallest setting 200ohms, (my meter has multiple settings from 2M down through
multiple K's to 200)." Well, "6.25v anywhere I checked...". Really??, points open, closed, key on/off, where are the two meter probes attached?, one stuck in the earth & other up dog's butt? I do not have a crystal ball. also, I asked for ammeter measurement with meter inserted between coil & resistor output, key on, points closed.....it never materialized. I, too , get frustrated, Sir.
 
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Ron Petterson
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PostPosted: Mon Jul 27, 2020 4:43 pm    Post subject: Re: 8N front mount distributor replacement Reply to specific post Reply with quote

Points closed
Switch on
6.25 volts on any circuit from switch to coil that carries voltage. Measured from various starting and ending points, not just point A to the coil. Rechecked everything after getting
the diagrams from others in discussion.
ohm meter is a Southwire 10031S multimeter, ohm settings 2M ohms, 200k ohms, 20k ohms,2k ohms and 200
ohms.
Meter probes, one attached at point A, beginning point of curcuit check and the second at point B, end of
circuit check.
I did respond concerning the resistor to coil ohms. Key on, points closed, from the exit terminal of the
resistor, where the wire to the coil attaches to the coil terminal and then to the pig tail output of the coil, the ohm reading fluctuated between 1.0 to 1.5 at the 200
ohm setting.
Sorry if I did not answer your questions direct. I answered many, some the same as yours and guess I
missed responding.
So given this info,did I answer everything?
Thanks
 
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JMOR
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PostPosted: Mon Jul 27, 2020 4:54 pm    Post subject: Re: 8N front mount distributor replacement Reply to specific post Reply with quote

CVPost-Ron Petterson wrote:
(quoted from post at 20:43:49 07/27/20) Points closed
Switch on
6.25 volts on any circuit from switch to coil that carries voltage. Measured from various starting and ending points, not just point A to the coil. Rechecked everything after getting
the diagrams from others in discussion.
ohm meter is a Southwire 10031S multimeter, ohm settings 2M ohms, 200k ohms, 20k ohms,2k ohms and 200
ohms.
Meter probes, one attached at point A, beginning point of curcuit check and the second at point B, end of
circuit check.
I did respond concerning the resistor to coil ohms. Key on, points closed, from the exit terminal of the
resistor, where the wire to the coil attaches to the coil terminal and then to the pig tail output of the coil, the ohm reading fluctuated between 1.0 to 1.5 at the 200
ohm setting.
Sorry if I did not answer your questions direct. I answered many, some the same as yours and guess I
missed responding.
So given this info,did I answer everything?
Thanks
"Meter probes, one attached at point A, beginning point of curcuit check and the second at point B, end of
circuit check.' I guess that statement means something to you, but tells me nothing.
"I did respond concerning the resistor to coil ohms. Key on, points closed, from the exit terminal of the
resistor, where the wire to the coil attaches to the coil terminal and then to the pig tail output of the coil, the ohm reading fluctuated between 1.0 to 1.5 at the 200
ohm setting." One does not measure Ohms in a powered circuit! Meter must have good protections or it would be toast now.
 
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Ron Petterson
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PostPosted: Tue Jul 28, 2020 9:45 am    Post subject: Re: 8N front mount distributor replacement Reply to specific post Reply with quote

Thiis is the picture of the distributor and why i am replacing breaker plate. And Hunkydory, this is not for you, but no one please think I am stupid enough to file
around the top of the plate next to the cam. Maybe a previous owner did it in the 45 years before I bought the tractor. This is the worst side, the other side is less
scored. I could be that it has just been wearing like this and it is the first time I have noticed.


 
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JMOR
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PostPosted: Tue Jul 28, 2020 10:09 am    Post subject: Re: 8N front mount distributor replacement Reply to specific post Reply with quote

CVPost-Ron Petterson wrote:
(quoted from post at 13:45:30 07/28/20) Thiis is the picture of the distributor and why i am replacing breaker plate. And Hunkydory, this is not for you, but no one please think I am stupid enough to file
around the top of the plate next to the cam. Maybe a previous owner did it in the 45 years before I bought the tractor. This is the worst side, the other side is less
scored. I could be that it has just been wearing like this and it is the first time I have noticed.

<img src="/cvphotos/cvphoto51689.jpg">
I see nothing wrong there. That upper bushing mount is a bent up piece of formed sheetmetal, not some precision machined part. Again picking 'all the wrong places to look' for cause of pitted points! Rolling Eyes

 
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a32vickyhotrod
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PostPosted: Tue Aug 04, 2020 5:59 am    Post subject: Re: 8N front mount distributor replacement Reply to specific post Reply with quote

Don, Any update on the ignition problem?
 
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Ron Petterson
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PostPosted: Wed Aug 05, 2020 11:50 am    Post subject: Re: 8N front mount distributor replacement Reply to specific post Reply with quote

32..On vacation, so repairs on hold. Parts received, new breaker plate installed in distributor. Points
installed .O15 , new top bushing much more snug than old one, new rotor does not have any "play" when
installed like old one, new cap and new gaskets, drop of cam lub, so distributor is ready to be
reinstalled once I get home. Will find out if this solves problem. If not, will move to next item until I
track it down. Will let you know, thanks for checking.
 
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a32vickyhotrod
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PostPosted: Wed Aug 05, 2020 12:51 pm    Post subject: Re: 8N front mount distributor replacement Reply to specific post Reply with quote


Thanks for the update, enjoy the vacation, we all need a good one, with the state of things these days.
 
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Ron Petterson
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PostPosted: Tue Aug 11, 2020 11:53 am    Post subject: Re: 8N front mount distributor replacement Reply to specific post Reply with quote

32..Reinstalled distributor, started right up. Now the issue will be how many times it will start until I
have to work on it again. Thats always been the issue. Maybe this will be the fix.
 
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a32vickyhotrod
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PostPosted: Wed Aug 12, 2020 10:38 am    Post subject: Re: 8N front mount distributor replacement Reply to specific post Reply with quote

CVPost-Ron Petterson wrote:
(quoted from post at 12:53:05 08/11/20) 32..Reinstalled distributor, started right up. Now the issue will be how many times it will start until I
have to work on it again. Thats always been the issue. Maybe this will be the fix.


Good news! I know some here have good luck with having points last for years, however I remember the days when you changed ignition parts twice a year. We tuned up our vehicles before winter and once again in the spring before the summer vacation trip.

Granted there's a lot of difference between cars and tractors but the fact is the ignitions system used to be a regular maintenance activity, and changing out the points and condenser was a big part of it.

Maybe over kill, but no one wanted a car that didn't start in the winter or fail them on vacation.
 
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