Small Engines (Lawn Mowers, etc.): Reassemble Mower starter cord recoil, briggs and stratton, plastic pulley


Question
QUESTION: My mower's power cord looked like it was about to break.

So I purchased a replacement cord and sought instructions on the web.

Unfortunately the instructions I found weren't consistent with the design of the Briggs and Stratton engine on my mower. The instructions show how to replace a coed in a recoil mechanism mounted on the top end of the engine shaft. Unfortunately my recoil mechanism is mounted on the front of the engine partially behind the square air filter. I couldn't find any hardware retaining the recoil mechanism on the mower except for the screw through the center of the recoil mechanism . I saw no way of reaching the knot on the end of the pull cord without removing the recoil mechanism from the mower, as the outer side of the pulley was covered by the spring housing and the inner side of the pulley was covered by another circular part.

I was unable to get the starter recoil mechanism off the mower without the spring getting loose.

I'm having trouble figuring out how to get that beast back into its enclosure AND the hook on its end attached to the pulley. The SAME pressed sheet steel part acts as the inner connection of the coil spring AND the housing around the spring. To complicate matters it appears the spring needs to be wound tight enough to fit inside the plastic pulley.

I couldn't find anything of assistance on the Briggs and Stratton or mower manufacturer's sites.

Engine Model 100708 type 3111

Any advise on getting that spring back and the recoil mechanism assembled enough to remount it on the engine would be greatly appreciated.

ANSWER: Hello Robert:

Go to this Site Addy, Please. You can View a Breakdown/IPL of the Engine at this Site Addy, http://www.outdoordistributors.com/ and Select the B. Then Select Briggs and Stratton. Then Select Don't have Part Numbers. Then Select the File #10.  Then Select the Folder #100700. I will Use this Breakdown/IPL for a Reference. You have the Vertical Pull Starter on this Engine. I am Assuming you Located and Loosened or Removed the Mounting Screw #65A on Page 4 of 7. This Screw Allows you to Remove the Recoil Starter from the Engine. Place the Outer End of the Spring In the Housing and Wind the Spring. Once the Spring is in the Housing, then Attach the Inner Spring End to the Set Washer. Install the Starter Back Into the Engine Housing and Thread the Rope as Required to Work Properly for Starting the Engine, then Loosen the Starter Mounting Screw and Turn the Starter Housing so you are Applying Tension to the Spring. Turn the Starter Housing 3 or 4 Times and Test the Starter. If the Rope is Retracting Properly, then you are Ready to Go, If Not, then Turn the Starter Housing 1 or 2 More Times Until the Recoil Spring is Retracting the Rope Properly. Hope this Helps. I am Here if You Require More Assistance. Let Me Know What Happens, Please. Thanks.

Good Luck

Respectfully  

John

---------- FOLLOW-UP ----------

QUESTION: Is the spring significantly easier to manipulate into place starting from the outer end  I was worried about the no 778 starter cover s retaining tab breaking off if I bent it in order to free the inner end  The black plastic no 548 washer appears to have more of a spacer and anti friction role than retention of the spring  I am also still mystified about getting the outer end of the spring hooked in to the slot in the pulley and getting the diameter of the spring small enough to fit inside the pulley  Since the slot for the outer end of the spring does not protrude past the pulley edge i am thinking the ribbed inner diameter of the pulley needs to fit around the spring  I was even considering ways to loop some string radially around the spring in a way that might allow me to extract the string after the pulley is in place  Now that I'm aware of the no 65a mounting screw i am seriously thinking of just replacing the whole no 764 recoil mechanism

Answer
Hello Again Robert:

Yes the Spring is a Lot Easier to Install GOing from the Large End. The Starter should be Assemblied and the Spring and Spring Cap are All that is Left to Install. Once the Spring is Wound Into the Housing and Cap Replaced, the Starter Should be Ready to Put Back on the Engine. Then Thread the Rope Through the Housing and Turn the Starter Body to Tighten the Spring (3 or 4 Turns). **Refer to Last Email.** The Pulley Should be on a Shaft that Holds the Pulley and Spring Assembly. If you Haven't Removed the Body of the Starter, then Do So. You can See how the Pulley Rests on the Curved Spline of the Shaft ans Moves to Engage the Flywheel when the Rope is Pulled. From the Description I Now have, you May want to Purchase a New Recoil Assembly. You have to Reassembly the Recoil Starter Completely Now. The Whole Breakdown/IPL # 764, is what I'm Seeing now, after you Explained you Haven't Removed the Recoil Support from the Engine. Hope this Helps. I am Here if You Require More Assistance. Let Me Know What Happens, Please. Thanks.

Good Luck

Respectfully  

John