Yesterday's Tractor Co. Shop Now
   Allis Chalmers Case Farmall IH Ford 8N,9N,2N Ford
   Ferguson John Deere Massey Ferguson Minn. Moline Oliver
Classified Ads
Photo Ads
Tractor Parts

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

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

Research & Info
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

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

Yesterday's Tractors Facebook Page

Related Sites
Tractor Shed
Ford 8N/9N Club
Today's Tractors
Garden Tractors
Classic Trucks
Kountry Life
Garden Tractors Discussion Forum

Kohler 482s engine

Welcome Guest, Log in or Register
Author  [Modern View]
Rusty Wheel

05-04-2014 09:51:51

Report to Moderator

I have a wheelhorse D180. The left plug will only fire if I unhook the plug wire and set the boot back on the plug but leave the wire unhooked. Got me and a few other guys stumped. Any help appreciated. Thanks in advance. RW.

[Log in to Reply]   [No Email]

05-05-2014 09:26:58

Report to Moderator
 Re: Kohler 482s engine in reply to Rusty Wheel, 05-04-2014 09:51:51  
I would swap plugs between the cylinders and see if the problem moved too.

[Log in to Reply]  [No Email]
joe csuti

05-04-2014 18:06:54

Report to Moderator
 Re: Kohler 482s engine in reply to Rusty Wheel, 05-04-2014 09:51:51  
You might want to click on link below & download a service/repair manual for eng.

You said you replaced coil,the 482 eng with 12v ign used 2 different type coils(this is covered in service manual ign section)one coil had an ext ballast resistor,the other had a built in resistor,if you installed a coil with built in resistor & you have a ballast resistor in 12v supply to coil you're probably not getting enough voltage to coil primary to fire both plugs at same time or 1 plug may be fireing late if at all.If coil not the problem I would suspect sticking/leaking valves,leaking head gasket or possibly an air leak in intake manifold for that cyl.

[Log in to Reply]  [No Email]
Rusty Wheel

05-04-2014 17:26:29

Report to Moderator
 Re: Kohler 482s engine in reply to Rusty Wheel, 05-04-2014 09:51:51  
Thank you Ken. I will try that tomorrow, but don't see the benefit since both plugs fire at the same time. At this point I'll try anything. I remember when I was a kid an old ignition man explained the reason for the separation of spark plug wires. It was to prevent the plugs from firing out of time due to the wires giving off a magnetic field. That was on a 1951 Oldsmobile, my first car. Thanks for the reply. RW

[Log in to Reply]  [No Email]
Rusty Wheel

05-04-2014 15:48:36

Report to Moderator
 Re: Kohler 482s engine in reply to Rusty Wheel, 05-04-2014 09:51:51  
Thanks for the reply Bob. Yes, I've done everything you have suggested, New plugs and wires, new coil, but haven't checked compression but when both plugs are firing, it seems to have plenty of power. Also installed new points and condenser. What ever is causing this is only related to the left bank. Don't understand what is happening when I separate the wire from the plug unless I'm changing the resistance.

[Log in to Reply]  [No Email]
ken combs

05-04-2014 16:39:36

Report to Moderator
 Re: Kohler 482s engine in reply to Rusty Wheel, 05-04-2014 15:48:36  
I see you didn't mention swapping plug wires at the coil. If you haven't, that is critical to checking the coil condition.

I've seen the same thing on older cars (now I'm showing my age, the older cars were Chevy sixes). Usually it was due to bad wires or plugs. forcing the spark to jump a bigger gap causes the coil to become more fully saturated, so more voltage.

[Log in to Reply]  [No Email]

05-04-2014 12:20:40

Report to Moderator
 Re: Kohler 482s engine in reply to Rusty Wheel, 05-04-2014 09:51:51  
Check the compression @ each cylinder, and the 2 intake gaskets.

Try swapping spark plugs from side to side, then wires (if one is too short to do this, temporarily use 2 known-good wires off of something else, a V-8 engine, for example).

Swap the wires between the two terminals on the coil. (Yes, this will work, they both fire at the same time and wire location is NOT specific.)

Does any of this make any difference in how it runs?

[Log in to Reply]  [No Email]
[Options]  [Printer Friendly]  [Posting Help]  [Return to Forum]   [Log in to Reply]

Hop to:

Fast Shipping!  Most of our stocked parts ship within 24 hours (M-Th). 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. [ About Us ]

Home  |  Forums

Copyright © 1997-2018 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