Question about Mtd 19 In. 173 CC OHV 3-In-1

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Hit rock, will run a little only

Mower starts but will stop.

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  • Mtd Master
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You may have broken the shear key on the flywheel

Posted on Mar 06, 2018

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6ya6ya
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Posted on Jan 02, 2017

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steve_lima
  • 181 Answers

SOURCE: I hit a big rock with my walk behind lawn mower

the flywheel key is broken.take the recoil cover off.take the nut off that holds the flywheel on.thake a hammer and lightly hit the flywheel oppisit side of key way.the fly wheel will come off.replace the key.replace the flywheel.replace the recoil cover and test run the mower.should be fine.let me know if this helped................

Posted on Jun 29, 2009

zeusfaber
  • 247 Answers

SOURCE: was running, hit a rock and now it won't start. grass was wet too

My guess is that the sudden stop has sheared the key that makes the flywheel turn with the crankshaft. (the key is a little sliver of metal that bridges a pair of slots cut into the end of the shaft and the bore of the flywheel. The flywheel is the large metal wheel that spins round on the top of the engine). Since the ignition timing is driven by the position of the flywheel, this does tend to stop the engine working.

The end of the shaft is usually tapered, making the flywheel a tight fit. Conequently, you will need a tool called a "puller" to get it off to put a new key in. Trying to hammer it off instead will just damage the magnets on the flywheel and make matters worse, so don't be tempted.

A

Posted on May 16, 2010

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2 Answers

While mowing with a brand new craftsman riding mower it sounded like it hit maybe a small rock and quit running. When you go to restart it just has a clicking sound


That sounds like a flat battery, faulty starter solenoid or starter. Hitting a rock would be coincidental to bad starting unless the stone kicked up and damaged a cable, but that should be impossible.

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John deere d170 hit rock and mower will not engage


well if you READ your owners manual its tell u how to reset it or fix it...

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I have a 6.5 self propelled Lawnman by MTD . It will start but will not stay running.


is the handle hard to pull?or pull back at times?any way pull the flywheel off and check the key that aligns the crank and flywheel in time they shear when you hit rocks

May 08, 2012 | Mtd Yard - Man 160cc, 21" Self - Propelled...

1 Answer

Model 917-372832 Eager-1 5.5 HP . Stopped running . Won't restart. I believe the timing may of moved. How to remove the fly wheel to check key position? The key may have stripped. Hit a rock which may...


Hi, you are correct, the key will be sheered. Remove the top shroud and flywheel nut, then while pulling upwards on the flywheel have someone strike downwards on the crankshaft with a hammer and brass drift. Do not use a steel drift as it will damage the crankshaft. Hope this helps, regards Phil.

Jul 18, 2011 | Craftsman Garden

1 Answer

I have a husqvarna self-propelled lawn mower/keystart with leaf bag. i hit a small tree root and now it wont start. the cord back fires a little when you pull it. will a bent blade stop it from cranking?


Hi hardister2...


Sounds like you sheared the key that holds the flywheel to the crankshaft, this is a common occurance when you hit something hard with the mower running.
You will have to remove the flywheel to replace the key.
No a bent blade will not stop the mower from running,but should always be replaced
It can cause problems later with the seal under the mower, it will start to leak oil.
Please take time to rate me

Jun 28, 2011 | Husqvarna Garden

2 Answers

The engine is not started


Hi.
Check the blade... it is bent and causes a vibration. if it is not the blade then the motor shaft is bent and that is terminal...if that happened then the mower is junk...

heatman101

Jul 12, 2010 | Poulan "Poulan" Push Mower

1 Answer

Was running, hit a rock and now it won't start. grass was wet too


My guess is that the sudden stop has sheared the key that makes the flywheel turn with the crankshaft. (the key is a little sliver of metal that bridges a pair of slots cut into the end of the shaft and the bore of the flywheel. The flywheel is the large metal wheel that spins round on the top of the engine). Since the ignition timing is driven by the position of the flywheel, this does tend to stop the engine working.

The end of the shaft is usually tapered, making the flywheel a tight fit. Conequently, you will need a tool called a "puller" to get it off to put a new key in. Trying to hammer it off instead will just damage the magnets on the flywheel and make matters worse, so don't be tempted.

A

May 16, 2010 | Mtd 22" Yard Machine Push Mower

1 Answer

My wife was mowing the lawn and she hit a rock. Since than the lawn mower does not start and when it tries to start a little smoke will come out of the carburator area. The mower is a Sears eager 1...


Unless the blade is belt-driven, like on riding mowers, then the blade is attached directly to the engine crankshaft. Hitting a rock with a mower like this is a very common problem. You probably have a bent crankshaft. In most cases this can be repaired, but may not be worth it, considering the age of the mower. But you should call a local small engine/mower repair shop to ask for an estimate. The repair is not something you would be able to do yourself.

Apr 30, 2010 | Craftsman Garden

1 Answer

Mower hit a big rock and stoped running


If you hit something hard enough to partially shear the key on the blade adapter, you did shear the key on the flywheel, and it will need to be replaced for the engine to run properly.

Apr 11, 2009 | Garden

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