Yesterday's Tractor Co. Compare our Prices For Parts
Click Here or call 800-853-2651 
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
 
Marketplace
Tractor Manuals
Tractor Parts
Classified Ads
Photo Ads

Community
Discussion Forums
Project Journals
Tractor Town
Your Stories
Show & Pull Guide
Events Calendar
Hauling Schedule

Galleries
Tractor Photos
Implement Photos
Vintage Photos
Help Identify
Parts & Pieces
Stuck & Troubled
Vintage Ads
Community Album
Photo Ad Archives

Research & Info
Articles
Tractor Registry
Tip of the Day
Safety Cartoons
Tractor Values
Serial Numbers
Tune-Up Guide
Paint Codes
List Prices
Production Nbrs
Tune-Up Specs
Torque Values
3-Point Specs
Glossary

Miscellaneous
Tractor Games
Just For Kids
Virtual Show
Museum Guide
Memorial Page
Feedback Form

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
TractorLinks.com
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Enter your email address to receive our newsletter!

subscribe
unsubscribe
  
Garden Tractors Discussion Forum

16 hp Briggs - no spark

Author  [Modern View]
GF ND

12-07-2010 11:55:49
24.111.180.6



Report to Moderator

I have a 1975 16 hp briggs engine on a gilson garden tractor. It ran fine this summer for mowing, but now I can't get it to run. I've held the spark plug close to the head to see if there is a spark and there isn't one. I've replaced the spark plug, points and condensor. The magneto looks visually fine. I don't know any other ways to test or trouble shoot. Anyone have any thoughts?

Thanks

[Reply]   [No Email]
RoyIA

12-11-2010 21:53:22
71.7.25.10



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to GF ND, 12-07-2010 11:55:49  
I converted the Briggs on my Yazoo to battery ignition some years ago. It starts much better than the magneto powered one.



[Reply]  [No Email]
El Toro

12-07-2010 17:12:56
108.3.200.96



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to GF ND, 12-07-2010 11:55:49  
Make sure where you connected the wire from your new condenser and the armature on the points aren't touching any metal. Make sure your points are gapped at .020" then clean them with a cotton swab dipped in alcohol. Then see if you have fire to your plug. Hal



[Reply]  [No Email]
joe csuti

12-07-2010 15:31:47
70.111.203.15



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to GF ND, 12-07-2010 11:55:49  
In addition to checking things hal said,try disconnecting ign kill lead that goes to ign sw at eng,crank eng/try to start eng with lead disconnected,if you have spark/eng fires & runs then you have a problem in ign sw or safety sw(s) on tractor killing eng ign by grounding same,if you still don't have spark/eng won't fire & run with lead disconnected,then problem on eng in points,wiring or armature

[Reply]  [No Email]
GF ND

12-08-2010 13:56:42
24.111.180.6



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to joe csuti, 12-07-2010 15:31:47  
I will try that in a couple of days. Last night the starter quit working. Took it apart and only two of the brushes were still hooked up and the two permanent magnets were broke into about 15 pieces. Have one ordered.



[Reply]  [No Email]
El Toro

12-07-2010 15:11:21
108.3.200.96



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to GF ND, 12-07-2010 11:55:49  

Your armature may look fine, but it may be weak.
Make sure there's no rust on the magnets and check the clearance between the armature and magnets. Touch those magnets with a flatblade screwdriver to see if they have strong magnetism.
That engine is B&S model number 326434 and Gilson used it on the Ward's tractors they made for Wards. That armature is probably still available. Hal

[Reply]  [No Email]
GF ND

12-08-2010 19:43:51
96.3.3.81



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to El Toro, 12-07-2010 15:11:21  
I checked the points gap and verified no touching wires. The magnet had a little rust on it, so cleaned that up and it seemed to have a strong pull. The clearance between the armature and magnet is 0.011", but I don"t know what is recommended. I"ll have to wait until I get a new starter to check other things out. Is there anything else I should look at in the meantime? What does the 16 gage wire that runs from the battery side of the solenoid to some sort of capacitor/fuse on the side of the engine by the fly wheel do? It carries 12.4volts there all of the time. Thanks.

[Reply]  [No Email]
El Toro

12-09-2010 10:57:45
108.3.200.96



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to GF ND, 12-08-2010 19:43:51  

Here's a Gilson wiring diagram. Hal



[Reply]  [No Email]
El Toro

12-09-2010 10:46:03
108.3.200.96



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to GF ND, 12-08-2010 19:43:51  
They recommend .010" clearance on the armature. Take post card and cut off a strip wide enough to slide under the armature over the magnets. Then loosen the bolts holding the armature and push the armature on top of the post card and tighten the bolts. Then rotate the flywheel to remove the postcard. I would think that .011" would be close enough. You can always convert the engine to battery ignition using an auto type coil. I would buy one with a built-in ballast resistor used on 12 volts. You would need to disconnect the armature wire to your points. You would need an ignition switch with battery voltage run to the switch and from the switch to the + terminal on the new coil and another wire from the - terminal on the coil to your points. Make sure your points are set at .020". Hal
ps; Not sure what that capacitor does. The parts manual just shows it.

[Reply]  [No Email]
GF ND

12-14-2010 16:40:07
96.3.3.81



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to El Toro, 12-09-2010 10:46:03  
I have the new starter in and it cranks over nicely. I've checked all of the other wiring and points gap and all looks good. However, spark is very weak. I can hold the spark plug wire and just barely feel the spark. Is the armature shot? Thanks



[Reply]  [No Email]
El Toro

12-15-2010 04:52:06
108.3.200.96



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to GF ND, 12-14-2010 16:40:07  
Check your tractor for safety switches and for the time being I would jumper them to make sure they're not causing the weak spark, but I think it's probably the armature. A lawnmower repair shop can probably test your old armature.
Our local auto parts & machine shop were setup to test them when they sold B&S parts. Hal



[Reply]  [No Email]
El Toro

12-15-2010 04:44:24
108.3.200.96



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to GF ND, 12-14-2010 16:40:07  
Since you said the magnets have strong magnetism I think your armature needs replacing and they should be available. You will need the engine model and type number. Hal



[Reply]  [No Email]
GF ND

12-20-2010 07:01:36
24.111.180.6



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to El Toro, 12-15-2010 04:44:24  
I got it running. The wire that ran from the switch to the magneto was bad. It has a good spark and seems to be working fine. Thanks for your help.



[Reply]  [No Email]
GF ND

12-10-2010 09:43:19
24.111.180.6



Report to Moderator
 Re: 16 hp Briggs - no spark in reply to El Toro, 12-09-2010 10:46:03  
Thanks for the info. When the starter comes in, I'll see if I can get it running. If not, I'll look at switching it over to battery ignition.



[Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Add a Reply]

Hop to:
TRACTOR   PARTS TRACTOR   MANUALS
Same-Day Shipping! Most of our stocked parts ship the same day you order (M-F).  Expedited shipping available, just call!  Most prices for parts and manuals are below our competitors.  Compare our super low shipping rates!  We have the parts you need to repair your tractor.  We are a Company you can trust and have generous return policies!   Shop Online Today or call our friendly sales staff toll free (800) 853-2651. [ More Info ]

Home  |  Forums


Copyright © 1997-2014 Yesterday's Tractor Co.

All Rights Reserved. Reproduction of any part of this website, including design and content, without written permission is strictly prohibited. Trade Marks and Trade Names contained and used in this Website are those of others, and are used in this Website in a descriptive sense to refer to the products of others. Use of this Web site constitutes acceptance of our User Agreement and Privacy Policy

TRADEMARK DISCLAIMER: Tradenames and Trademarks referred to within Yesterday's Tractor Co. products and within the Yesterday's Tractor Co. websites are the property of their respective trademark holders. None of these trademark holders are affiliated with Yesterday's Tractor Co., our products, or our website nor are we sponsored by them. John Deere and its logos are the registered trademarks of the John Deere Corporation. Agco, Agco Allis, White, Massey Ferguson and their logos are the registered trademarks of AGCO Corporation. Case, Case-IH, Farmall, International Harvester, New Holland and their logos are registered trademarks of CNH Global N.V.

Yesterday's Tractors - Antique Tractor Headquarters