Jump to content

Time to Vote for Tractor of the Month!
Garden Tractors and Parts on eBay



Photo
- - - - -

Inconsistent Spark


  • Please log in to reply
8 replies to this topic

#1 Bob IN OFFLINE  

Bob IN
  • Senior Member
  • Contributor
  • Member No: 24042
  • 1,474 Thanks
  • 676 posts
  • Location: Albion IN

Posted January 13, 2014 - 08:57 PM

Im working on a rj 58 with a 4 hp kohler. It has spark but its not very consistent. Would this be caused by points? I cleaned them and also the magnets on the fly wheel. Also cleaned the contacts on the coil. I really hope its not the coil. Maybe ill try and clean them better. It may just be the person working on it but its getting frustrating. :wallbanging:


  • boyscout862 said thank you

#2 Gtractor ONLINE  

Gtractor

    The Tractor Hoarder

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 782
  • 7,887 Thanks
  • 4,401 posts
  • Location: Chillicothe, MO

Posted January 13, 2014 - 09:13 PM

It could be any number of things. My suggestion is start over and check and clean every contact and ground.  Sometimes corroded points are hard to get clean - especially if you have poor vision like I do.  :mad2:


  • Alc said thank you

#3 trowel OFFLINE  

trowel

    Summer.

  • Senior Member
  • -GTt Supporter-
  • Member No: 5127
  • 4,821 Thanks
  • 4,533 posts
  • Location: ma.

Posted January 13, 2014 - 09:17 PM

Sounds like something is loose or not making good contact. Decaying coils do that too but usually when hot.


  • Alc said thank you

#4 nbent OFFLINE  

nbent

    customizer

  • Senior Member
  • Member No: 8320
  • 650 Thanks
  • 529 posts
  • Location: amalga, UT

Posted January 13, 2014 - 11:51 PM

it may also be the condenser my friend had a 66 chevy with a 292 that happened when the condenser went bad 



#5 MH81 ONLINE  

MH81

    Proud to be Deplorable

  • Senior Member
  • -GTt Supporter-
  • Contributor
  • Member No: 802
  • 29,257 Thanks
  • 29,429 posts
  • Location: N. W. PA

Posted January 14, 2014 - 02:19 AM

Ground and condenser are my starting suggestions if you're sure the points are behaving.

One other thought, where are the point driven? Is it off the crank, is there any play in the crank? Could be just enough to cause the points to misbehave.
  • Alc said thank you

#6 JDBrian OFFLINE  

JDBrian

    Super Moderator

  • Super Moderator
  • Staff
  • -GTt Supporter-
  • Contributor
  • Member No: 2507
  • 9,595 Thanks
  • 14,140 posts
  • Location: Hubley, Nova Scotia - Canada

Posted January 14, 2014 - 06:14 AM

Points can be fussy. Remove them and get them in a good light so you can get a close look. One other issue is that you could have a worn or cracked spot on the plug wire somewhere and the spark is arcing over to the engine chassis.


  • Alc said thank you

#7 boyscout862 ONLINE  

boyscout862
  • Senior Member
  • Member No: 8923
  • 10,974 Thanks
  • 8,210 posts
  • Location: N.E. Connecticut

Posted January 14, 2014 - 08:07 AM

Other possibility is an intermittent short in a 12 volt wire. Sometimes at the points cover. Good Luck, Rick


  • Alc said thank you

#8 OldBuzzard OFFLINE  

OldBuzzard

    Tractorholic

  • Senior Member
  • Contributor
  • Member No: 805
  • 6,717 Thanks
  • 4,692 posts
  • Location: Oberlin, OH

Posted January 14, 2014 - 08:21 AM

It's also possible that it's a bad plug.
  • Alc said thank you

#9 Walkinman1 ONLINE  

Walkinman1
  • Senior Member
  • -GTt Supporter-
  • Member No: 34918
  • 750 Thanks
  • 572 posts
  • Location: Lombard, IL

Posted January 14, 2014 - 08:56 AM

I had that same issue the other day on a Kohler and it turned out to be the coil, even without getting hot it would work for a few seconds then quit.
  • trowel said thank you




Top