Small Engines (Lawn Mowers, etc.): JD 160, blade style, volt light


Question
Hi John
I have a JD 160 that was also handed down to me like one of your previous questions.  The problem was that it first starts to cut out and stall when you engage the deck.  I rewired the harness to the deck and seat switch as well as the signal to the fuel tank.  I found a short to the frame in one of the connectors, and another was almost worn through.  The mower worked fine for a couple of cuts, but now the deck won't engage at all. I have power going to the clutch, but am wondering what the resistance should be of the coil for it.  Any ideas?

Answer
Hello Hans:

>>The Following is a PTO Test File I made. Any Input is Appreciated. **If you have an Ohmmeter, Disconnect the Wiring Harness from the Front of the Clutch and Check the Resistance of the Clutch. You should have around 4 or 5 OHMs. If at or near Zero, the Coil has Shorted.**
>>The Following is a Basic File I made for Setting the PTO Clearance. Any Input is Appreciated. **Some of the Newer PTOs cannot be Adjusted.
>>If you can Get a Blade Style Feeler Gauge between the PTO Magnet and Clutch, then Set the Clearance at .015in. The Newer PTOs have the Same Set Up as the Older PTOs, except there is No Adjustments.
>>I Suggest also that you Rig a 12 Volt Light for Testing the Current Flow to the PTO while Operating the Mower. If the Light Blinks During Operation, then you have a Bad Connection somewhere to the PTO Clutch.
>>If the Light Stays Steady and the PTO Still Kicks in and Out, then it is the Adjustment.
>>You can Also Try Turning the Spring Loaded Adjuster Nuts 1/4 Turn and Operate the Mower. Do Not Adjust Over 1/2 Turn.
>>If you have Adjusted to 1/2 Turn and the Problem is Still Present and you Know the Voltage to the PTO is Steady, then Replace the PTO.**
>>To Remove the PTO;
>>Remove the Spark Plug and Use a Bolt with the Same Diameter and Threads as the Spark Plug and About 3" Long.
>>Thread the Bolt into the Spark Plug Hole Until it Engages the Piston.
>>Slowly Tighten the Bolt Until you have Locked the Piston and it Does Not Move. **BE CAREFUL A LOT OF TORQUE IS NOT REQUIRED. PISTON DAMAGE CAN OCCUR IF TO MUCH TORQUE IS USED ON THE STOP BOLT**
>>Now Remove the Crankshaft Center Bolt from the PTO Clutch Assembly.
>>If you Hit a Snag or this Does Not Correct the Problem, I Hope to be Here if You Require More
Assistance. Hope this Helps. Let me Know What Happens, Please.
>>Have a Happy Holiday Weekend and May the All Mighty Bless You and Yours. Be Safe and Happy. Thanks.

Good Luck

Respectfully

John

PS: I am Allowed to Answer 5 Questions a Day. If you See I am Maxxed Out, then Try Submitting your Question at or Just After 8pm EST (US). My New Day Starts then. Comments and Ratings are
Greatly Appreciated. Thanks.

Respectfully

John