Sears Mower Housing Repair

The lawn mower began emitting horrible crashes, which turned out to be coming from a flange at the rear of the mower housing that was formerly spot-welded to the main chassis. Those welds broke and the flange occasionally vibrated into contact with the blade, causing heartache and confusion for both parties.

Re-spot-welding the flange wasn’t in the cards, but the elaborately formed piece of steel did have a flat section in contact with another part of the chassis with just enough meat for a bolt. I grabbed the two with a Vise-grip, whacked the flange until it was more-or-less lined up where it should be, drilled a hole, and popped in a 1/4-20 bolt:

Mower flange - side view
Mower flange – side view

The curved section of the flange faces the blade, with the vertical end pointed anti-spinward: the blade nicks that edge.

A dab of red Loctite and a nylock nut topped it off:

Mower flange - bottom view
Mower flange – bottom view

Then I could complete the mission…

6 thoughts on “Sears Mower Housing Repair

  1. Red Loctite and a nylock nut. That’s a good way to avoid flying fasteners…

  2. The pull starter on my mower had the return spring fail. I dug down that far to find they’d pop-riveted the whole pull starter assembly on. Downside: irritating to disassemble. Upside: will probably never come apart.

    1. Like those “lubricated for life” bearings that have just enough lube for the intended lifetime: when the lube runs out, the lifetime is over!

      I have a set of plastic drawers full of various blind rivets that will become a cherished family heirloom to be handed down through the generations, because I use them so rarely. It seems if I must get into something that was riveted together, I’ll be going back in there again for another reason, so I may as well install screws & nuts. Occasionally, that’s not possible and I hate it when that happens…

      1. I riveted this back together because there’s very little room between the cooling fins on the top of the flywheel and the place the bolt heads would have to go and the thought of one coming loose gave me the heebie jeebies. And thirty seconds later I dropped the screw that attaches the plastic doodad with the manufacturer swoosh onto the top, right into those same cooling blades, where it was totally unrecoverable… without drilling out the rivets again.


        1. Good thing you don’t have house plants in the shop; would have wilted the poor things before starting to drill out the rivets.

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