This site uses cookies to maintain login information on FarmallCub.Com. Click the X in the banner upper right corner to close this notice. For more information on our privacy policy, visit this link: Privacy Policy
NEW REGISTERED MEMBERS: Be sure to check your SPAM/JUNK folders for the activation email.
Well I tried to start her last.....
Forum rules
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
Notice: For sale and wanted posts are not allowed in this forum. Please use our free classifieds or one of our site sponsors for your tractor and parts needs.
- Ken (48 Cub)
- 10+ Years
- Posts: 994
- Joined: Mon Feb 03, 2003 11:10 am
- Zip Code: 40023
- Tractors Owned: 1948 FCub
1957 LoBoy - Circle of Safety: Y
- Location: KY, Fisherville
Well I tried to start her last.....
I tried to start her last night for the first time since the rebuild with no luck The starter turns the engine over very smoothly. I have a temporary gas tank set up. I pulled the wire from the coil and have good spark. I pulled a spark plug next and have NO spark. What am I missing?
Does the kill switch ground the system to stop it or the other way around?
Help please!
Does the kill switch ground the system to stop it or the other way around?
Help please!
Ken, Annie the '48.
I think we gotter if'n she don't jump, Andy Griffith.
I think we gotter if'n she don't jump, Andy Griffith.
- John *.?-!.* cub owner
- Cub Pro
- Posts: 23701
- Joined: Sun Feb 02, 2003 2:09 pm
- Zip Code: 63664
- Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
- Location: Mo, Potosi
Ken, since you mentioned kill switch I assume you still have a magneto. The kill switch grounds the points and completely kills the spark. Did you correctly time the governor gear when you reassembled the engine? Have you checked that the rotor is pointing to the correct wire? Rudi has a magneto timing guide on his website. Also check that the pinion gear (drives the rotor) hasn't broken, they are getting old and seem to be regularly failing.
If you are not part of the solution,
you are part of the problem!!!
you are part of the problem!!!
- Bigdog
- Team Cub Mentor
- Posts: 24144
- Joined: Sun Feb 02, 2003 12:50 pm
- Zip Code: 43113
- Circle of Safety: Y
- Location: OH, Circleville
- Contact:
Ken, the kill switch grounds the points to stop the engine. Your problem lies in the distributor. If the mag is generating a spark (which you have confirmed) then the problem is delivery of the energy to the sparkplug. First of all, check your timing. Pull the distributor cap and confirm that the rotor is spinning as the engine cranks. The mag is delivering spark to the distributor cap, the rotor delivers it to the plugs. The spark must be delivered at the proper time as the rotor tip passes the lugs on the cap. Make sure your coil wire is firmly connected to the cap center post.
Bigdog
If you can't fix it with a hammer, you've got an electrical problem.
My wife says I don't listen to her. - - - - - - - - Or something like that!
http://www.cubtug.com
If you can't fix it with a hammer, you've got an electrical problem.
My wife says I don't listen to her. - - - - - - - - Or something like that!
http://www.cubtug.com
- Ken (48 Cub)
- 10+ Years
- Posts: 994
- Joined: Mon Feb 03, 2003 11:10 am
- Zip Code: 40023
- Tractors Owned: 1948 FCub
1957 LoBoy - Circle of Safety: Y
- Location: KY, Fisherville
John & Bigdog,
Yes, I have rebuilt the J4 magneto and have good spark from the coil wire. I matched the timing marks up dutinrg assembly.
I pulled the cap off and watched the roter turn with the engine. It seemed a little jumpy not smooth but it was turning. Even if it wasn't timed correctly I should see spark from the plugs, right?
Yes, I have rebuilt the J4 magneto and have good spark from the coil wire. I matched the timing marks up dutinrg assembly.
I pulled the cap off and watched the roter turn with the engine. It seemed a little jumpy not smooth but it was turning. Even if it wasn't timed correctly I should see spark from the plugs, right?
Ken, Annie the '48.
I think we gotter if'n she don't jump, Andy Griffith.
I think we gotter if'n she don't jump, Andy Griffith.
- cjpenny89
- 10+ Years
- Posts: 1080
- Joined: Mon Feb 03, 2003 1:15 pm
- Location: St. Charles, MI 48655
I had the same problem with a farmall A. I had the timing off from the rotor cap to the dist cap off. It was sparking in-between the lugs and I had no spark to the plugs.
Bring it up to top dead center firing strock and pull the dist cover and see if it lines up with the rotor cap. you might have to play with that.
Chad
Bring it up to top dead center firing strock and pull the dist cover and see if it lines up with the rotor cap. you might have to play with that.
Chad
- George Willer
- Cub Pro
- Posts: 7013
- Joined: Sun Feb 02, 2003 9:36 pm
- Zip Code: 43420
- Circle of Safety: Y
- Location: OHIO, Fremont
- Contact:
Ken (48 Cub) wrote:John & Bigdog,
Even if it wasn't timed correctly I should see spark from the plugs, right?
Wrong! The rotor must be pointing to one of the towers when the mag trips, even if the wrong one in order to have a spark at the plugs.
If the spark doesn't have a path through the plugs it can jump internally to the coil, and possibly damage it. The J-4 mag does not have a safety gap to prevent damage.
The impulse should never be allowed to trip without an external path for the spark.
George Willer
http://gwill.net
The most affectionate creature in the world is a wet dog. Ambrose Bierce
http://gwill.net
The most affectionate creature in the world is a wet dog. Ambrose Bierce
- Ken (48 Cub)
- 10+ Years
- Posts: 994
- Joined: Mon Feb 03, 2003 11:10 am
- Zip Code: 40023
- Tractors Owned: 1948 FCub
1957 LoBoy - Circle of Safety: Y
- Location: KY, Fisherville
George, your'e right. That was a dumb statement. It's got to be the timing. Bigdog will back me up when I say that I really struggle with the electronics. I guess my brain is just not wired that way.
I will check the timing tonight and report back tomorrow.
Thanks,
I will check the timing tonight and report back tomorrow.
Thanks,
Ken, Annie the '48.
I think we gotter if'n she don't jump, Andy Griffith.
I think we gotter if'n she don't jump, Andy Griffith.
- artc
- Cub Pro
- Posts: 1871
- Joined: Sun Mar 30, 2003 10:25 am
- Zip Code: 06457
- eBay ID: cmtelephone
- Tractors Owned: Restored: 1950 Cub, 1950 Cub Demo, 1948 super AI, 1935 Silver King, 1946 Oliver 60 RC, John Deere M, 1950 C demo.
In working clothes:
1950 cub, 1948 cub, 1941 A, 1948 H, 1963 B414, 1958 240U, 1947 Oliver 60 industrial, Oliver 70 industrial. IH 450, 1963, another 1948 cub, 1946 I6 with Trogan front blade. - Location: CT, Middletown
- Contact:
be sure that while testing with the distributer cap off, that the mag is turned OFF, otherwise, damage to the mag is possible. you might have timed the motor 180 out by thinking the dist turns CCW. easy to test, swap plug wires 2 and 3 and try to start.
'If they're tappin', they're not burnin'
http://www.ZagrayFarmMuseum.org
http://www.ZagrayFarmMuseum.org
- Rudi
- Cub Pro
- Posts: 28706
- Joined: Sun Feb 02, 2003 8:37 pm
- Zip Code: E1A7J3
- Skype Name: R.H. "Rudi" Saueracker, SSM
- Tractors Owned: 1947 Cub "Granny"
1948 Cub "Ellie-Mae"
1968 Cub Lo-Boy
Dad's Putt-Putt
IH 129 CC
McCormick 100 Manure Spreader
McCormick 100-H Manure Spreader
Post Hole Digger
M-H #1 Potato Digger - Circle of Safety: Y
- Twitter ID: Rudi Saueracker, SSM
- Location: NB Dieppe, Canada
- Contact:
Ken:
Forgive me for saying this, but it is nice to have company in the "not much good at electronics stuff" boat
Have a look again at the manual, and then at The Best of H.L. Chauvin's articles. Between the two of them, that is how I learned to time Ellie properly.
I would bet dollars to doughnuts that your problem is most likely timing, and you are probably 180 degrees out. I had to do it dozens of times before I got it right.
Hope this helps a bit.
Forgive me for saying this, but it is nice to have company in the "not much good at electronics stuff" boat
Have a look again at the manual, and then at The Best of H.L. Chauvin's articles. Between the two of them, that is how I learned to time Ellie properly.
I would bet dollars to doughnuts that your problem is most likely timing, and you are probably 180 degrees out. I had to do it dozens of times before I got it right.
Hope this helps a bit.
Confusion breeds Discussion which breeds Knowledge which breeds Confidence which breeds Friendship
- John *.?-!.* cub owner
- Cub Pro
- Posts: 23701
- Joined: Sun Feb 02, 2003 2:09 pm
- Zip Code: 63664
- Tractors Owned: 47, 48, 49 cub plus Wagner loader & other attachments. 41 Farmall H.
- Location: Mo, Potosi
-
- 10+ Years
yes that is what I mean
last week I put a mag on one of my mutts turned the crank around one time to the timing mark and couldn't trip the impulse so I tore off the governor checked the timing marks came up the house read the manual grabbed my right ear with my left hand my left ear right hand pulled real hard and wiped the brown ring off my neck again
last week I put a mag on one of my mutts turned the crank around one time to the timing mark and couldn't trip the impulse so I tore off the governor checked the timing marks came up the house read the manual grabbed my right ear with my left hand my left ear right hand pulled real hard and wiped the brown ring off my neck again
- cjpenny89
- 10+ Years
- Posts: 1080
- Joined: Mon Feb 03, 2003 1:15 pm
- Location: St. Charles, MI 48655
Again Please bring it up to top dead center with compression stroke.
Then mark where #1 is from the cap to the dist cap base. take off the dist cap and see if the rotor cap pointer lines up with #1 tower on the dist cap.
This will tell you if it is right. You may have your mag timed right but you might note have it aligned to the dist cap.
Chad
Then mark where #1 is from the cap to the dist cap base. take off the dist cap and see if the rotor cap pointer lines up with #1 tower on the dist cap.
This will tell you if it is right. You may have your mag timed right but you might note have it aligned to the dist cap.
Chad
Who is online
Users browsing this forum: No registered users and 56 guests