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Et1 Sears Craftsman Electric Lawn Tractor


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42 replies to this topic

#16 KennyP ONLINE  

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Posted February 28, 2012 - 07:53 AM

Every time I see this thread I think of the movie ET and " ET phone home!" Good luck here, Doug. I would be a bit concerned with all that weight on the front axle, too.

#17 DH1 ONLINE  

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Posted February 28, 2012 - 08:02 PM

MURPHYs LAW

Today after work I took the motor out and pulled the pulley off and found a stepped crank, I thought all these small lawn tractors had 1" x 3" cranks on them. Turns out some of the early model Vert shaft engines had stepped cranks. 1" down to 7/8" (see pic) Live and Learn.
001.JPG 003.JPG

The engine has a Code# of 810326 11, Model# 252707
I think that makes it 1981yr made, which is what the tractor is, most likely original.

So now the hunt is on for another pulley off of a later model Briggs.
Or I have to modify the pulley I have.

The irony is that Eteks are suppose to have a 7/8" x 1-1/2" output shaft, but the one I got is 1" x 2-7/8"
I was so happy to get the 1" shaft thinking that it would be a simple swap.
009.JPG

#18 IamSherwood OFFLINE  

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Posted February 28, 2012 - 08:20 PM

Sorry to hear about this issue Doug.
You'll get it sorted out.
I know, you're a resourceful guy.

#19 Ryan313 OFFLINE  

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Posted February 28, 2012 - 08:27 PM

Im glad you were able to get the gray one for this project! I will be watching this one, without a doubt! sorry about the issue with the pulley, Im sure you will figure something out!

#20 wvbuzzmaster OFFLINE  

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Posted February 28, 2012 - 08:28 PM

Can you bore the pulley you have all the way thru to 1 inch and then just use the key to where it fits?

#21 DH1 ONLINE  

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Posted February 28, 2012 - 08:35 PM

Can you bore the pulley you have all the way thru to 1 inch and then just use the key to where it fits?


Looks like they used a piece of 1-1/4 outside dia pipe and put a bushing in it at one end to fit the crank.
The 7/8" stepped part of the crank is only 1-1/4" long.
I can probably knock the pulley bushing out, then I'd have to put another bushing in to fit the 1" Eteks shaft.
The inside dia of the pulley is 1.060"
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#22 KennyP ONLINE  

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Posted February 29, 2012 - 08:18 AM

Would finding 2 pulleys the right OD and make a spacer between them work? I think you can find a keyed shaft coupler at McMaster-Carr that would work. Maybe this:

ShaftCoupler.jpg
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#23 DH1 ONLINE  

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Posted February 29, 2012 - 05:46 PM

Doug, with most of the 270 lbs of batteries up front, will you need to do anything to the front axel / pivot?

If 1 goes out the back then 3 are under the hood, 1 battery probably weighs the same as the gas engine fuel tank and fuel.
So only the weight of 2 batteries, 135lbs will be added on the front end.

#24 DH1 ONLINE  

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Posted February 29, 2012 - 05:52 PM

Would finding 2 pulleys the right OD and make a spacer between them work? I think you can find a keyed shaft coupler at McMaster-Carr that would work. Maybe this:

ShaftCoupler.jpg


Thanks for the info the pulley assembly is
5" tall, bottom one is 5-3/4 dia, top one is 4-1/8 dia.
003.JPG Anybody got one kicking around.

#25 DH1 ONLINE  

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Posted March 02, 2012 - 07:26 PM

Tomorrow I go see a friend who has a pulley that he thinks will work, almost the same dimensions and for a 1" shaft.
Says he has 30 of them total from different lawn tractors.
Hopefully this problem is solved.
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#26 DH1 ONLINE  

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Posted March 03, 2012 - 11:11 AM

Problem solved, got myself a pulley that will work and some other parts I needed, traded the 11hp Briggs for it all.
It's good to get rid of stuff you don't need for stuff that you do need.

#27 wvbuzzmaster OFFLINE  

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Posted March 03, 2012 - 11:20 AM

Glad to hear that you made a good trade. So will you be bolting the motor on this afternoon?

#28 Ryan313 OFFLINE  

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Posted March 03, 2012 - 11:26 AM

Im pleased to hear you have that worked out. I was thinking the same as Casey... whens it going together?

#29 DH1 ONLINE  

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Posted March 03, 2012 - 11:34 AM

Glad to hear that you made a good trade. So will you be bolting the motor on this afternoon?


Im pleased to hear you have that worked out. I was thinking the same as Casey... whens it going together?


Next thing to do is make the mounting plate.

#30 Sparky OFFLINE  

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Posted March 03, 2012 - 11:36 AM

Hey Doug , just a suggestion . Before you borrow parts from a previous build , get good pics of it .You will thank yourself .




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