QuestionJohn,
What does the governor look like inside the engine? I looked at the diagram link you sent me, but I could not tell which part the governor shaft end is supposed to be on top of. I am concerned about taking it all apart and not being able to figure out which parts align. When I had it opened before - the only parts that came out were the oil slinger and it's arm. Where is the actual governor and what does it look like. Thank you very much.
Bill
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Followup To
Question -
John,
I adjusted the arm on the shaft. Engine starts and idles. After a minute, the speed picks up a little. I can only move the throttle a little or the engine starts to race again. If I put a load on the engine - engaging the blades - the engine slows. I can then open the throttle more to bring it to speed but cannot even go to 1/2 throttle without racing again. If I have the throttle adjusted to a proper sounding RPM with blades engaged - If I disengage - the engine races again. It seems that the governor is not compensating for load/no load. What internally in the engine would push the governor? If I did the opposite and move the governor pin to the left when adjusting the governor arm and crank the engine - I can fell a clattering against the governor. I only tried this to see if I could get the governor down to a speed lower than the original setting. I put it back.
Thanks, Bill
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Followup To
Question -
John,
The model is 289707, Type 015401, Code 9505084A.
If I push the governover arm to the left, it slows down the engine. The arm only moves a hair in that direction. Thought it was worth mentioning. Thanks for your help.
Bill
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Followup To
Question -
Hi John,
I have a Briggs&Stratton 12.5 hp 280000 series engine (1995). The case gasket for the oil sump had to be replaced because the old one failed. The only internal part that came out when changing the gasket was the oil slinger. This could only go in one way. After assembly of the engine - the engine is racing. I figured it was the governor. I checked all the linkages and cleaned. All parts are intact. I do not have a service manual. I read online to adjust the governor - place throttle to FAST, then loosen the clamp for the governor arm. I then turned the governor pin all the way to the right and tightened the clamp. The engine still races, but not as bad. With the throttle on SLOW, the speed sounds like medium throttle. I did make sure the throttle cable is set so the holes in the mechanism as specified in the owner's manual.
Do you think I did something wrong with reassembly ? I am lost as to why the governor does not work correctly.
Thanks, Bill
Answer -
Hello Bill:
Send me the Model, Type and Code Numbers Off of the Engine, Please. I require them to Look up your Engine In my Manuals. The Part that Fell Out was Probally the Governor Itself but I cant be Sure Until I see the Breakdown. Thanks.
Respectfully
John
Answer -
Hello Bill:
ReAdjust the Governor. You Should Not be Able to Move the Governor Arm as you just described to me. Make Sure you Hold the Governor Shaft in Place Until you have the Governor Control Arm Tightened on the Governor Shaft. If you want to see the Entire Engine Diagram, go to this Link http://shop.briggsandstratton.com/BShopProductListingPage.asp?MecID=100&CatalogI and Type in your Model and the First 4 Numbers of the Type Code. Hope this Helps. Let me know what Happens, Please.
Good Luck
Respectfully
John
Answer -
Hello Bill:
Its Begining to Sound like the Governor Shaft Isnt on the Governor Inside the Engine. The Shaft has a Curved Arm on the Inside that Makes Contact with the Governor. If you Have the Governor Control Spring on Properly, then I would Reopen the Oil Pan and Ensure that when You Replace the Oil Pan the Governor Arm is Aligned so to Set on Top of the Governor. Hope this Helps. Let me know what Happens, Please.
Good Luck
Respectfully
John
Answer Hello Bill:
The Diagram Number is #43 and it Sits on #46. There is a Plunger on #43 that the Governor Shaft Arm Inside the Engine Rests On. As the Valve Cam Turns; the Plunger on #43 has 2 Wing Arms that Fly Outward and Causes the Plunger to Extend Outward and This Plunger Pushs the Governor Shaft and This Moves the Throttle Control Arm Bolted to the Governor Shaft and this Regulates the Engine Speed. What Happens Most Times is the Governor Shaft Inside is Turned Away From the Governor and Once the Oil Pan is Installed the Arm Hits the Oil Pan and Cant be Turned over to Engage the Governor Itself. Hope this Helps. Let me know what Happens, Please.
Good Luck
Respectfully
John
