QuestionQUESTION: Having problems with my throttle linkage. While the throttle assembly seems to work ok, the engine only runs wide open. I'm thinking there might be a spring missing that holds up the link when the throttle is set to idle. There is a larger spring within the assembly that doesn't appear to be doing a whole lot so perhaps it came loose and got reattached incorrectly (that might be a stretch). Meanwhile I cannot seem to locate a complete drawing of the throttle assembly as it should look and that shows where the springs should be located and if there is one missing. The drawings I've seen are only disassembled to identify parts. Then again it may not be a spring issue at all. Any insight is appreciated. Thanks!
ANSWER: Hello David:
Can you Control the Engine Speed Using the Governor Control Arm? If No, then Remove the Carburetor and Check the Throttle Valve Plate. From your Description, it Sounds like the Throttle Valve Plate or the Governor is Broken. If you Can Control the Engine Speed with the Governor Control Arm, then the Internal Governor is Bad or the Throttle Control Bracket is Not Moving when you Move the Throttle Cable. A Bad Spring would Allow the Engine to Idle Only. Let me Know the Answers, Please. I will Attempt to Locate a Picture of the Throttle Control Bracket that Shows How the Linkage and Springs are Hooked up in Case it is Required. Hope this Helps. I am here if you Require more Assistance. Let me know what Happens, Please. Thanks.
Good Luck
Respectfully
John
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QUESTION: John... thank you for your very quick reply. I found the illustrated parts list for my model (406777) from an answer you gave someone else recently. Very helpful!
Yes, I can control engine speed using the governor control arm (227). If I hold it in the up position it will run near idle speed. But it won't stay up on its own. The throttle control bracket (222) moves by moving the cable but doesn't appear to move anything else. Is there a missing link between it and the governor control arm (or anything else)? What is supposed to move the governor control arm?
Next step I guess may be the governor itself. New territory for me but I may be up for the challenge. Difficult to replace?
John, thanks again for your help!
ANSWER: Hello Again David:
Heres a Site Addy with a Better Breakdown of the Control Bracket on your Engine. http://jdpc.deere.com/jdpc/servlet/com.deere.u90490.partscatalog.view.servlets.H. Enter the Name Scotts. Select File 2741 - Scotts S2048 Yard Tractor. Then Select Fuel and Air. Then Select Throttle Speed Control Linkages. When the Throttle Control Cable is Moved it Moves a the Shaft (#24). This Shaft Moves Lever (#28), which Pulls the Spring (#29). The Spring Pulls Pivot (#2). Its Been a While since I have Worked on this Type of Control Bracket, but I think Using the JD Site Addy you can See from the Breakdown/IPL How they Operate from here. If Not, Just Let me Know, Please. Hope this Helps. I am here if you Require more Assistance. Let me know what Happens, Please. Thanks.
Good Luck
Respectfully
John
Hello David:
I Just Read your Post. Thanks for the Good Words. Try to Submitt your Follow Up Question at 9pm EST. They Cut me Off After 10 Questions a Day and a New Day for Me Starts at 9PM EST. Till Next Time. May All Your Mechanical Problems be SMALL ONES and May the All Mighty Bless You and Yours. Thanks Again.
Best Wishes and Good Luck
Respectfully
John
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QUESTION: John..thanks for getting back to me. The drawing link you sent me was for the S-2048 and I have the L-2048. The throttle controls differ on the 2 models. The same link gets me to those drawings too but they don't really show the setup as a unit. However, after looking it over quite a bit I'm thinking my issue may not be just a spring. There a 2 springs that pull the throttle control arm down during acceleration but now I don't think there is any such mechanism for pulling the arm back up. I'm now thinking the offsetting tension that the 2 springs are working against is within the governor unit itself. Is that how the governor works? If so it looks like my governor may be fried. Is the governor replacement pretty straight forward or does it get complicated? I tinker a little but don't wanna tear it a part then get lost. Any input is appreciated. Thanks..David
AnswerHello Again David:
I am Glad to See you Got Through to Me. You are Correct About the Springs in Relation to the Governor. When you Move the Governor By Hand; You should Feel the Governor Pushing Against you. If you Do Not Feel this Push, then I have a Question. Has the Governor Arm Been Loosened from the Governor Shaft? If Yes, then the Governor May Be Out of Adjustment. If No, then the Internal Governor Needs to be Replaced. This is a Simple Process. Remove the Engine to the Work Bench with the Oil Pan Facing Up. I have a Wooden Rest that was Especially Made to Hold the Engine when in this Position. Remove the Oil Pan. Tap Upwards and Lightly on the Sides of the Oil Pan to Loosen it from the Dowel Pins and Slide the Oil Pan Off the Crankshaft. When the Oil Pan is Removed, you can See the Governor Resting on Top of the Cam Gear. Lift Off and Replace with a New Governor. Check the Engine Block for Debris from the Old Governor and Wipe the Inside of the Block With a Rag, Until Clean. Set the Governor So it is Resting on the Governor Shaft and Carefully Replace the Oil Pan. Remember to Replace the Oil Pan Gasket. If the Crankshaft Seal Was Not Leaking, then Leave it Alone. It Should be OK. You can Easily Replace it While Mounted on the Machine if Required Later. Make Sure the Governor Stays in Contact with the Governor Shaft while Replacing the Oil Pan. Re - Mount the Engine to the Machine. Refill With Oil. These Instructions are Basic. Your Internal Governor May Differ. Hope this Helps. I am Here if You Require More Assistance. Let me Know What Happens, Please. Thanks.
Good Luck
Respectfully
John
