Here's what we have:
-'55 loboy
- Engine cranks, lights work
- No spark
- Ammeter shows no discharge when ignition is switched on
- Ignition switch ok (shows continuity when pulled out)
- Continuity from switch to neg side of coil
- Swapped known good coil, same result
Ideas?
Thanks!
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No Fire
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Rodney51Cub
- 10+ Years
- Posts: 523
- Joined: Fri Feb 11, 2011 6:06 pm
- Zip Code: 62995
- Tractors Owned: 1951 Farmall Cub
1950 John Deere A
1949 Farmall Cub
1943 Farmall H
1940 Farmall H
1953 Farmall Super M
1962 Massey Ferguson 65 - Circle of Safety: Y
- Location: Southern Illinois
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Crimson Tim
- 10+ Years
- Posts: 604
- Joined: Wed Feb 19, 2014 1:09 pm
- Zip Code: 32736
- Tractors Owned: The crew:
"John", 1952 Cub
"Paul", 1951 Cub
"George", 1958 LoBoy Cub with Wagner 45 Loader
"Ringo", 1977 Cub
So far, Paul and Ringo have arrived. John and George were supposed to follow ages ago, but apparently have gone awol. Long story. - Circle of Safety: Y
Re: No Fire
A voltage drop test will tell you more about the health of your wiring and connections than a continuity test. Check wiring connections, especially grounds. Clean and shiny?
What is known about the history of the tractor? When did it run last, and how did it run? Has anything changed since then?
Where are you checking for Spark? Is there any place upstream that has spark?
Which style ignition system do you have?
What is known about the history of the tractor? When did it run last, and how did it run? Has anything changed since then?
Where are you checking for Spark? Is there any place upstream that has spark?
Which style ignition system do you have?
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Glen
- 10+ Years
- Posts: 6139
- Joined: Mon Mar 19, 2012 7:33 pm
- Zip Code: 00000
- Tractors Owned: 1956 Farmall Cub with Fast Hitch, F-11 plow, Disc, Cultivator, Cub-22 mower
- Circle of Safety: Y
- Location: Wa.
Re: No Fire
Hi,
I would check the ignition points, like was said above.
They get old and burned from use.
They need flat, shiny surfaces to work best, so the engine will start, and run good.
If they are still useable, I take them out of the magneto, or Battery Ignition unit, and file them one at a time, with a large sharp file.
Set the point on a solid surface to file it.
Wipe off all filing with a clean cloth.
If the points look too burned, new points are better.
TM Tractor has new points and condenser, below is the listing, you can look at the pics.
http://www.tmtractor.com/new/el/367fp.htm
Below are pages showing the Battery Ignition unit, and the points. It shows setting the point gap also.
http://farmallcub.com/rudi_cub/www.clea ... age-11.jpg
http://farmallcub.com/rudi_cub/www.clea ... age-12.jpg
There is info in the 1957 LoBoy operator's manual also, and magneto info, if it has a magneto.
That manual is at the top of the page, at Cub Info, then go to Rudi's Manuals.
I would check the ignition points, like was said above.
They get old and burned from use.
They need flat, shiny surfaces to work best, so the engine will start, and run good.
If they are still useable, I take them out of the magneto, or Battery Ignition unit, and file them one at a time, with a large sharp file.
Set the point on a solid surface to file it.
Wipe off all filing with a clean cloth.
If the points look too burned, new points are better.
TM Tractor has new points and condenser, below is the listing, you can look at the pics.
http://www.tmtractor.com/new/el/367fp.htm
Below are pages showing the Battery Ignition unit, and the points. It shows setting the point gap also.
http://farmallcub.com/rudi_cub/www.clea ... age-11.jpg
http://farmallcub.com/rudi_cub/www.clea ... age-12.jpg
There is info in the 1957 LoBoy operator's manual also, and magneto info, if it has a magneto.
That manual is at the top of the page, at Cub Info, then go to Rudi's Manuals.
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nwfan1
- 10+ Years
- Posts: 78
- Joined: Tue Mar 01, 2005 3:42 pm
- Zip Code: 14559
- Circle of Safety: Y
- Location: NY, Spencerport
Re: No Fire
Thanks for the direction. Checking voltage drops is a good idea, and I'll take a closer look at the points today.
'54 Standard Cub #185939
'55 Standard Cub #192323
'55 Loboy #732 with IH 1000 loader
'55 LoBoy #1937
"No holes in my hoods!"
'55 Standard Cub #192323
'55 Loboy #732 with IH 1000 loader
'55 LoBoy #1937
"No holes in my hoods!"
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nwfan1
- 10+ Years
- Posts: 78
- Joined: Tue Mar 01, 2005 3:42 pm
- Zip Code: 14559
- Circle of Safety: Y
- Location: NY, Spencerport
Re: No Fire
Points did the trick. A quick file and all is good. Something looked funny when I took the distributor off- took me a minute to realize the dust cover was missing. Have one on the way this morning.
Thanks again everyone.
Thanks again everyone.
'54 Standard Cub #185939
'55 Standard Cub #192323
'55 Loboy #732 with IH 1000 loader
'55 LoBoy #1937
"No holes in my hoods!"
'55 Standard Cub #192323
'55 Loboy #732 with IH 1000 loader
'55 LoBoy #1937
"No holes in my hoods!"
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