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Don't hit water meter cover with mower

Posted on 4/16/15 at 6:48 pm
Posted by roobedoo
hall summit
Member since Jun 2008
1085 posts
Posted on 4/16/15 at 6:48 pm
So I hit the water meter cover by the street and mower shuts off. I took a pretty good chunk out of the hard rubber cover.

Fearing the worst I pulled the cord and it started. It shut down after about a minute, started up again but only ran for seconds.

Long story short sheared the flywheel key which luckily saved the internals.

I ended up cracking the flywheel when I tried to pull it.

I have an old mower and pulled its flywheel. Both engines are Briggs/Stratton however the broken one is from 6.75 engine and the other from a smaller engine not sure size.

Both flywheels are same diameter. Both have same number of ribs/fins. The old one looks about 1/8 inch taller.

You think they are interchangeable? Of course the obvious answer is try it and see!!

Just wondering if anybody knows that it will not work because of magneto/points or other reasons.

Thanks

Posted by bootlegger
Ponchatoula
Member since Dec 2012
5330 posts
Posted on 4/16/15 at 8:09 pm to
As long as the magnet on flywheel is same size/location, should work I would think
Posted by LSUlefty
Youngsville, LA
Member since Dec 2007
26440 posts
Posted on 4/16/15 at 8:13 pm to
I got to replace my pull rope and the self propelled belt. Once it stops raining of course.
Posted by fishfighter
RIP
Member since Apr 2008
40026 posts
Posted on 4/16/15 at 8:17 pm to
quote:

As long as the magnet on flywheel is same size/location, should work I would think


This. It could of been worse. My dear wife wiped out a new one hitting a root on a tree. Bent the shaft.
Posted by animalcracker
Member since Oct 2010
1930 posts
Posted on 4/16/15 at 8:24 pm to
where do you live to be able to cut grass? looking at the weather forecast I might be able to get mine cut around wednesday.
Posted by Spankum
Miss-sippi
Member since Jan 2007
55969 posts
Posted on 4/16/15 at 8:38 pm to
quote:

sheared the flywheel key which luckily saved the internals.


interesting...so the flywheel key is designed to shear so that the inertia of the flywheel doesn't twist the crank...ingenious, really...
Posted by LongueCarabine
Pointe Aux Pins, LA
Member since Jan 2011
8205 posts
Posted on 4/16/15 at 9:06 pm to
Huh. Come talk to me when you hit the gas meter with the RFM.

LC
Posted by bpinson
Ms
Member since May 2010
2668 posts
Posted on 4/16/15 at 9:14 pm to
Ok, I was going to cut my MILs yard the Saturday before Easter. I had the John Deere LA105, (Lowe's and Home Depot model) lawn tratcor on the trailer going up I-55 to Jackson. I got off the Interstate and look back...no mower. I dropped that bitch on I-55 going about 65 mph. I back tracked and found it in the median next to the barrier cables. Dude was already checking it out when I got back. The back axle/rear end was broken. I got in the seat, turned the key and it started. Son boy and I dragged it back on the trailer, got a good strap, (the other one broke) and took it home. Farm Bureau is gonna pay me $400 and I am going to try and fix the rear end. I should be able to replace it for that or so the old man that works on mowers I asked said. So I guess it's all relative, you got no mower and neither do I. Good luck. I bet that bitch looked pretty wild bouncing on the interstate and I wasn't even drinking.
Posted by roobedoo
hall summit
Member since Jun 2008
1085 posts
Posted on 4/16/15 at 9:24 pm to
Yes, it really is a good design. I was thinking bent rods and valves but it is just a little rectangle piece of stock. It is like your timing belt. If it goes motor does not know how to run.
Posted by Spankum
Miss-sippi
Member since Jan 2007
55969 posts
Posted on 4/16/15 at 9:47 pm to
quote:

bpinson


holy hell, man!...I would love to have been within sight of that mower tumbling down the interstate....

don't feel too bad, I had a refrigerator fall out of my truck once...it slid down the road on the door at 60 miles per hour...
Posted by Spankum
Miss-sippi
Member since Jan 2007
55969 posts
Posted on 4/16/15 at 9:52 pm to
quote:

It is like your timing belt. If it goes motor does not know how to run.


true, the timing is really controlled by the magnets in the flywheel, so when the magent is no longer positioned at the right spot on the flywheel relative to the crank, things go haywire...
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