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Massey Harris & Massey Ferguson Tractors Discussion Forum

135 burning points

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Jack Adams

11-15-2005 14:19:40

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I have a massey 135 with the 3 cyl. perkins gas that seems to go through points quite often,I dont' use it verey much, maybe 15 hours a year, but every year it starts running rough and it's almost always the points burnt ! any suggestions?? thanks

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BigBoyinMS

11-17-2005 13:43:36

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Re: 135 burning points in reply to Jack Adams, 11-15-2005 14:19:40

The post about the resister coil is correct. But check prices. It may be less expensive to just add a resistor from a parts house. Probably ask for one for a mid 60's plymouth.

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Alberta Mike

11-16-2005 06:36:31

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Re: 135 burning points in reply to Jack Adams, 11-15-2005 14:19:40

Can't help with the points but I have a question about my friend's 135 gas that he has just rebuilt the engine on. When running (no load) he hears a somewhat faint, hollow tinny rattling sound from the engine. It doesn't really jump right out at you but it is there nonetheless. He has torn it apart since the rebuild and measured everything up and things are all to spec, however this strange noise still is there after reassembly. When your tractor is running, do you hear anything like this? He has never heard another 135 gas engine running before so he is out of answers right now unless it is a "normal" sound from that engine design.

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John T

11-15-2005 19:15:12

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Re: 135 burning points in reply to Jack Adams, 11-15-2005 14:19:40

Jack, some enemies of points causing premature burn up are bad condensors or excess coil current or they are mis aligned and not mating up good n flat n even. Look n see how well n even they close together??? One of the functions of the condensor is to extend the life of the ignition points by absorbing some of the energy which might otherwise arc acrss the points when they open, if bad, the points burn up soon.

I would replace the condensor if in any doubt as to its condition and make sure its wire is well attached to the points and that it has a good ground connection. The current which the points are required to switch shouldnt be much over the 4 and 5 amp range so you may wana take a look at the coils resistance and its current draw. I guess theres not any chance you have a 6 volt coil on a 12 volt system and it doesnt have an external ballast resistor is there??? Cuz if so the points will burn up quickly from exces current switching. Check the mechanical alignment of the point surfaces also.

Let us know, good luck n God Bless

John T, retired electrical engineer in Indiana

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mowr

11-15-2005 16:59:58

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Re: 135 burning points in reply to Jack Adams, 11-15-2005 14:19:40

I have seen this problem caused by the wrong coil. Someone had replaced it and apparently was unaware that it required a resistor coil. The resulting excess voltage kept frying the points.

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Jerry/MT

11-15-2005 16:36:13

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Re: 135 burning points in reply to Jack Adams, 11-15-2005 14:19:40

Are the points set correctly? Is the charging system working properly? Sometimes a failed voltage regulator will cause a higher than normal charging voltage that will cause an increase in primary ignition circuit current. If all these things are OK, replace the ignition condensor.

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Jerry/MT

11-15-2005 16:35:17

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Re: 135 burning points in reply to Jack Adams, 11-15-2005 14:19:40

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Ol Chief

11-16-2005 02:38:43

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Re: 135 burning points in reply to Jerry/MT, 11-15-2005 16:35:17

Is Primary voltage polarity to coil correct.

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Jack Adams

11-16-2005 09:32:01

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Re: 135 burning points in reply to Ol Chief, 11-16-2005 02:38:43

Thanks for all good advice guy's,I think I got the gap set o.k. at 21 and I did change the coil a couple of years ago so I guess I better check and see that I got the right one on there,so thanks' again and I wiil let you know how I make out.
Hello alberta Mike ,I cant' say that I hear the sound that you discribed on my 135 but, I hear a knocking sound not to loud, but I think it has somthing to do with the multi power as it goes away when shifted to low, by the way where in alberta are you , I'm in North Battleford Sask.

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