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ChrisD

Name Chris D
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Date Joined Feb 10, 2009
Date Last Access Feb 19, 2009 12:46 pm
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Re: New engine replacement for Simplicity 724 with Tecumseh H70
#1   Feb 19, 2009 12:33 pm
Marc,

I can try to rotate the starter.  Looks like there are extra holes. 

Need to assess the bolt pattern for the guides.  The drawing doesn't specify spacing, just bolt size.

I will call SEW once I measure my old H-70's bolt pattern.

Thanks all,

Chris

Re: New engine replacement for Simplicity 724 with Tecumseh H70
#2   Feb 17, 2009 10:49 am
Marc, all,

You are correct - it is a paddle wheel Simplicity 724 model with the H-70 motor.  I did confirm a CCW rotation of the shaft which is on the left side (in operator position).

My dad (87) just hates parting with his old stuff.  I have to admit - it's a beast of a machine.  It (H70) threw a rod, and that was after I repaired it 2 years ago.  Makes me believe there was something else wrong.

The replacement Tecumseh motor's pull starter would face front, but it wouldn't be a problem since I could pull the starter rope outwards past the machines handles.

I believe I would need a spacer block, as the H70's shaft height is higher than the replacement's  - 4.125".  I'm going to remove the motor on my next visit, and get the measurements.  I did see the snow motor on the http://smallenginewarehouse.com site for $240.  That will work, I believe.

Marc - One thing that might be a problem - the machine's belt guides are bolted to the H-70's motor area near the output shaft.   Is this going to work with the new motor?  What did you do?

Thanks - great forum!

Re: New engine replacement for Simplicity 724 with Tecumseh H70
#3   Feb 10, 2009 8:18 pm
Not sure.  I'll have to take a look.  But  the pull starter on the Tecumseh 8 hp replacement will face the wrong way, making it awkward to start.
New engine replacement for Simplicity 724 with Tecumseh H70
#4   Feb 10, 2009 4:49 pm
My dad's Simplicity 724 with the Tecumseh H70 bit the dust on Saturday. 

I've looked at replacing the engine with a B&S, but it appears the B&S output shaft turns in the wrong direction (CCW),  and the pull starter would be facing the front of the machine.  

The H70 is a 7.0 hp, 3/4" output shaft on the left of the machine when you are in position.

Any ideas?

Thanks!

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