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Ford Tractors Discussion Forum
:

Ford 850 distributor problem converted to electronic

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billsanfilippo

11-21-2019 14:26:02




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OK Looking for some help to avoid a repeat of the same problem. Installed a Pertronics ignition in my 1957 Ford 850 172CI Per instructions removed dis cap and dust cover - replaced points with supplied trigger. Installed magnetic barrel over points cam pressing it down as far as it would go. Replaced dust cover & cap. Started engine ran it for a few minutes-maybe 6- shut it off. Went to restart it to no avail. No spark. Checking things I found that the magnetic barrel was rubbing on the dust cover to the point that when stopped they fused together. When I tried to restart the barrel was destroyed by the points cam.

Anybody have a similar experience?? Any advice?? I have ordered replacement parts but have not received them yet so I can't comment if there was some defect in the old parts.
Thanks for your help Bill

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Hobo,NC

11-24-2019 07:30:06




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
Where I stand on EI...

Conventional ignition parts have became unreliable then add in the age of the support parts its can become a battle to keep them running be it the ignition are whatever...

Once it becomes a hassle either on in the field repairs are them tote'n the distributor in for an unscheduled ignition repair its time for EI...

EI is not for everyone I understand that BUT I don't like to work on my own tractor either so slowly converting them to EI...

On the EZ ones I probably would just deal with conventional ignition unless mother nature became an issue...

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SEArk

11-23-2019 09:56:53




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
I ruined one also with no gasket, has run fine since for years,



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billsanfilippo

11-23-2019 09:20:03




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
Quoting Removed, click Modern View to see Bingo!! I hope the new dust cover I ordered comes with said gasket. Thanks again for everyone's help. Should be able to solve the problem one way or the other.



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showcrop

11-23-2019 03:14:24




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
Quoting Removed, click Modern View to see

Robilmichael, I have had Pertronics in a '69 forklift for probably 35 years. and in my Ford 960 for probably 118 years. I think that your statement hinges on what you think of as a "significant" improvement. Personally I have better things to do than to tend to points maintenance every other year and trouble shoot the ignition every 8 years. For me that is a significant improvement, and I have seen dozens of posts here from others who feel the same way. There is another thread on Pertronics on here right now where you can read a few more posts praising them.

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billsanfilippo

11-22-2019 07:53:09




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
Quoting Removed, click Modern View to seeThanks for the additional advice. Doubled checked-no such warning on the instructions that came with my 1244A. Luck of the draw?? This will be like checking valve clearance on a modified engine. Ill have to get out my clay! Its just nice to know it's not some kind of one of situation. I do like the idea of just creating some extra clearance while keeping the dust cover intact Thanks again Aloha from Pahoa HI Bill

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showcrop

11-22-2019 05:35:52




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
As per the instructions posted by MarkbMI this is common. I encountered this situation to a slight degree but I solved it without cutting a hole in the cover, I believe that I just removed a slight amount from the underside of the cover.



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MarkB_MI

11-22-2019 04:08:37




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
Check what your instructions say. This is an excerpt from the Pertronix 1244A instructions:

7. Reinstall dust shield, rotor spring tension clip, and rotor.

NOTE: SOME APPLICATIONS REQUIRE THE INSTALLATION OF THE DUST SHIELD TO INSTALL THE DISTRIBUTOR CAP. THE CENTER HOLE OF THE DUST SHIELD MUST BE ENLARGED TO CLEAR THE MAGNET SLEEVE.

Interestingly, I did not need to drill out my dust cover; I'm not sure why. Apparently they're not all the same.

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billsanfilippo

11-21-2019 19:47:31




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
That is what I thought about doing and was hoping that some one would confirm that such a solution would work. Thanks so much to everyone for their input. Bill



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billsanfilippo

11-21-2019 19:45:38




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
For some reason this tractor wears down the rubbing block on the points in about 10 hours. The dist cam appears smooth to the eye but after a couple sets of points it was either new dist or new ignition. Thanks, Bill



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billsanfilippo

11-21-2019 19:41:37




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
Quoting Removed, click Modern View to see I don't think you can ditch the dust cover because the dust coner indexes on the distributor and the cap indexes on the dust cover Thanks for the reply Bill



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KCTractors

11-21-2019 19:18:05




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
I drill a 1-1/2" hole in the dust cap. If you keep the dust-cap off, the distributor cap does not fit tight.



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Bob

11-21-2019 18:55:45




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
A quality set of breaker points can last 15 to 20 years.

What are you trying to accomplish?



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robilmichael

11-23-2019 03:01:09




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 Re: Ford 850 distributor problem converted to electronic in reply to Bob, 11-21-2019 18:55:45  
I agree. I have been running my Jubilee and 850 using standard points for a decade or more without any adjustments or problems. I can't recall ever seeing a post praising electronic ignition as a significant improvement over standard points in these farm tractor applications.



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WayneIA

11-21-2019 18:27:26




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
That's not a new problem. I bought a 641, non running, because of that problem. I put a Pertronics in a NAA finding the same problem. Both times I ground away some of the back side of the dust cover and it made room. I'm not sure exactly what is the true answer to that problem or even what actually is the cause of the problem. I think leaving the dust cover off would put the rotor too close to the cap and one would have to reshape the cap clips if you did.

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JMOR

11-21-2019 16:45:11




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
Quoting Removed, click Modern View to seeCall Pertronix. Seems that I recall they tell you to ditch the dust cover.



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John P.

11-21-2019 15:49:23




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 Re: Ford 850 distributor problem converted to electronic in reply to billsanfilippo, 11-21-2019 14:26:02  
I installed that kit in my 1955 950 and it works perfectly.



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indford

11-22-2019 20:41:50




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 Re: Ford 850 distributor problem converted to electronic in reply to John P., 11-21-2019 15:49:23  
I had this problem on one of my tractors(1821). Turns out it was missing it gasket (Part#35) then it was fine.



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