Crank Pulley - Snowblower Forum : Snow Blower Forums
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post #1 of 4 Old 02-26-2015, 05:12 PM Thread Starter
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Crank Pulley

I have been looking to find the correct answer but have come up with 2 so far....

Question: What is used to secure the pulley on the output shaft of a 7hp Tec.

Answers - 1) Set screws on the shaft from the pulley

2) Set screws on the saft from the pulley AND a bolt run in the end of the crank.

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post #2 of 4 Old 02-26-2015, 05:38 PM
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Most of the time I use both if I can. Some cranks are not tapped for a bolt. Roger

Last edited by rhenning; 02-27-2015 at 08:56 AM.
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post #3 of 4 Old 02-26-2015, 08:27 PM
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To throw another answer at you it may possibly be a split sheave that has a key made in to the casting. In this design the shafted is stepped and a bolt on the end of the shaft clamps the two halves in place against the step. No set screws required.

This type of split sheave looks like this. I have seen these on 5-8 HP Tecumseh engines.

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post #4 of 4 Old 03-06-2015, 10:54 PM
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Many of the older Tecumseh's just use a slide on fit with a bolt and washer on the end of the shaft to keep them from sliding off.

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