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1963 MF35 Elecetrical system


 
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Gearhead210
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PostPosted: Fri Oct 12, 2012 8:29 am    Post subject: Re: 1963 MF35 Elecetrical system Reply to specific post Reply with quote

The voltage will not necessarily determine whether the resistor before the coil is needed. In 12V coils there are External resistor and internal resistor models. It may have stamped on the coil somewhere which type it is, but it is not uncommon for a 12V to have in inline resistor. Is there an issue with how it is running currently?
 
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GaryinAL
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PostPosted: Sat Oct 13, 2012 8:45 am    Post subject: Re: 1963 MF35 Elecetrical system Reply to specific post Reply with quote

Yea, It seems to want to kind of smother out when under load. Wanted to check the obvious first. Never seen a resistor with a 12 volt system. I know I need to check carb, timing, plugs, distributor, etc. What order should I check these things?, or does it matter, as long as I check them?
 
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Gearhead210
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PostPosted: Sun Oct 14, 2012 4:27 am    Post subject: Re: 1963 MF35 Elecetrical system Reply to specific post Reply with quote

Something that will "help" direct you to look towards electrical or towards fuel, is when it starts to act up while running it pull the choke part way out. If it starts running better then you have a fuel issue. No change, then it's electrical. Something simple I would check if you think its a fuel issue is for good flow down to the carb. Possible electrical issues that could cause it to get worse when hot is a bad coil or bad condenser. Check to see if the points have a bad burn spot on them- the condenser can cause that. If coils are bad they usually act up when warm, could have a break in the wire internally that turns into a gap when warmed up and everything expands.
 
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GaryinAL
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PostPosted: Mon Oct 15, 2012 12:42 pm    Post subject: Re: 1963 MF35 Elecetrical system Reply to specific post Reply with quote

Gearhead210 wrote:
(quoted from post at 13:27:17 10/14/12) Something that will "help" direct you to look towards electrical or towards fuel, is when it starts to act up while running it pull the choke part way out. If it starts running better then you have a fuel issue. No change, then it's electrical. Something simple I would check if you think its a fuel issue is for good flow down to the carb. Possible electrical issues that could cause it to get worse when hot is a bad coil or bad condenser. Check to see if the points have a bad burn spot on them- the condenser can cause that. If coils are bad they usually act up when warm, could have a break in the wire internally that turns into a gap when warmed up and everything expands.


Thanks for the info. I will try those things next time I'm at the tractor.
 
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