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Broken conrod on shearing plant

SER9135A Shearing petrol motor shearing plant with broken conrod are looking for replacment part or details on motor used for that model.

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Posted on Jan 02, 2017

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SOURCE: Will shearing the Shear Pin on a push mower cause the rope to seize up as if it's locked?

a sheared pin will throw off the timing making it kick back when trying to start but what caused the pin ti shear ma have like a bent crankshaft

Posted on Mar 30, 2012

  • 430 Answers

SOURCE: why does my 11 hp keep shearing the flywheel key?just rebuilt

Loose flywheel nut

Posted on Nov 19, 2012

  • 31 Answers

SOURCE: why does my flywheel key keep shearing

Hi Luke
In most cases a flywheel key shearing is caused by the timing being out. a loose flywheel nut or the airgap between the coil & magnets not set correctly. you may need to check repair manual for correct clearance (most cases 004-008"0

Posted on Nov 21, 2012

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1 Answer

Motor will turn backwards with wrench on but won't turn forward

not enough details like make model , engine petrol/diesel , what happened prior to this movement
it could be a hydraulic lock on one piston , big ned off and conrod jamming on block any thing, and with out details any guess is good
post your statement again with the details and ask a question
posts are not linked

May 14, 2016 | Cars & Trucks

1 Answer

How do I replace Woodruff key in engine

Take the cover off the housing that covers the flywheel. The crank shaft comes up the middle of the flywheel and has a slot in the end. The slot has the woodruff key in it. The key fits in the slot on the flywheel. When you hit something with the blades the crankshaft stops and the flywheel keeps turning. This shears off the woodruff key or makes it move out of position and then the timing becomes out of spec. The motor wont start. You need to pull the flywheel off and replace the woodruff key. They key looks like a half moon piece of metal.

Jan 01, 2016 | Garden

1 Answer

I have a 17.5 briggs& sttaton 2003 motor it keeps shearing the key

how is the motor shearing the key that doesnt make any sence

Jun 05, 2012 | Craftsman Garden

1 Answer

Will shearing the Shear Pin on a push mower cause the rope to seize up as if it's locked?

a sheared pin will throw off the timing making it kick back when trying to start but what caused the pin ti shear ma have like a bent crankshaft

Mar 28, 2012 | Poulan "Poulan" Push Mower

2 Answers

Does the blade need to be on for my 6.5hp self propelled toro mower to start? It keeps backfiring and the blade key is striped.

I am not familiar with this model. However, just about all lawn mower engines rely on the blade to act as a flywheel, a very important factor in engine operation.

I hope this helps you ...

Thanks for your interest in

Jul 13, 2011 | Toro Garden

1 Answer

I have a 11.5HP engine (28D707) on a ride mower. Initial problem was timing caused by the key on the crankcase shearing. Each time I restart the mower the key shears (2 times so far). Any ideas why this is...

The interference fit is damaged, if the key keeps shearing. THE key is not the main holding component, the interference fit is. The key just gives a jamb effect, but the flywheel and shaft MUST do most of the holding, through interference. If too loose, one, or both components must be replaced.

Mar 02, 2011 | Garden

2 Answers

Shearing of flywheel pin on starting 12 hp snapper

When you the key this time, put the flywheel on first then the key but this time use a little grit between the flywheel and crankshaft. Something like grinding compound. It will keep the flywheel from moving plus make sure you torque down the flywheel nut good.
Good Day.

Oct 29, 2009 | Garden

1 Answer

Distributor camshaft gear keeps shearing

Replace the distributor.The weights have collapsed causing this to seize.Thats why now its shattered

Jul 19, 2009 | 1987 Ford F 150

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