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Sears Suburban Clutch Idler


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#1 mrcountry OFFLINE  

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Posted July 05, 2014 - 10:39 AM

Hi. I am wondering something. I tried to find  sears part number 6636H idler pulley and found out the number switched to 634A86. I then proceeded to find out that this pulley is no longer available. Whoever had the tractor before I bought it put a regular flat idler on instead of the v-idler. Could someone help me with the dimensions of the original pulley so I can find a new one?. Thanks for your time.


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#2 glgrumpy ONLINE  

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Posted July 05, 2014 - 10:52 AM

Not sure which you are doing but there IS a flat and a v idler on most I have seen. Seems the one on side of frame that goes up and down to adjust is the flat one, and the other on the arm is the V one??  Would have to get manual out again to see. Biggest issue is getting one that is offset for clearance on the body sides. Or, use spacers there. Don't bind up the pulley with a washer or such.



#3 MH81 ONLINE  

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Posted July 05, 2014 - 11:55 AM

I will be able to measure late tonight if no one beats me to it.
Send me a reminder reply to jog my memory.
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#4 MH81 ONLINE  

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Posted July 05, 2014 - 10:03 PM

Finally got the 5 minutes to take a measurement.
The OD of the pulley is 3", the width is 3/4" on the tips of the flare, but the belt is a little wider than 1/2". Not quite 9/16.
I would buy a 5/8 wide id pulley and be done with it.
Anyways, here is pic of the pulley.

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#5 Bolens 1000 ONLINE  

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Posted July 06, 2014 - 06:36 AM

If someone would be kind enough to send me their old pulley I could make these available again, that goes for any Sears Pulley

Biggest thing is determining the offset.


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#6 MH81 ONLINE  

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Posted July 06, 2014 - 05:24 PM

If someone would be kind enough to send me their old pulley I could make these available again, that goes for any Sears Pulley
Biggest thing is determining the offset.


Brian, I will look at two or there of mine and see if any of them are different. If they are the same, we can see if one can't head up to you.
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#7 Bolens 1000 ONLINE  

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Posted July 06, 2014 - 07:13 PM

Brian, I will look at two or there of mine and see if any of them are different. If they are the same, we can see if one can't head up to you.

 

Sounds good. Would be happy to send you a new one in return if I can match it up. 

Are these used on alot of these Suburbans?



#8 MH81 ONLINE  

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Posted July 06, 2014 - 09:02 PM

Almost all of them. Only thing is, they rarely go bad.
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#9 TAHOE ONLINE  

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Posted July 07, 2014 - 08:42 AM

I've got a parts tractor, I can possibly send them to Brian too if Alan doesn't have 


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#10 mrcountry OFFLINE  

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Posted July 07, 2014 - 04:02 PM

Finally got the 5 minutes to take a measurement.
The OD of the pulley is 3", the width is 3/4" on the tips of the flare, but the belt is a little wider than 1/2". Not quite 9/16.
I would buy a 5/8 wide id pulley and be done with it.
Anyways, here is pic of the pulley.

that is a 3/8 hole with an offset?



#11 Bolens 1000 ONLINE  

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Posted July 08, 2014 - 07:50 PM

Are these for the tractor in question?

Found these Overpriced Used ones http://www.ebay.com/...=STRK:MEBIDX:IT

 

May try to get them so they can be reverse engineered! :D


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#12 MH81 ONLINE  

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Posted July 09, 2014 - 09:41 PM

OK, Brian... Here is what I came up with
I have the following pulleys
Onan pulleyimage.jpg
Tecumseh pulleyimage.jpg
Sears Custom Tecumseh image.jpg

The ones I have duplicates of, I measured diameter, they all seem the same.
You will notice the bracket is backwards on the Onan versus the Teccy powered tractors.
The custom style Teccy, the engine, the bracket is a little different but it looks like the same pulley.
I can see no difference in the flat idler that is down in that the back of the belt rides on.
These are the pulleys I removed with their bolts.image.jpg
The two tied together are from the Onan style.
They are sitting in a box, awaiting shipping to Doc. I don't see any serious difference in any of them, but I will let the Doctor give his opinion
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#13 Bolens 1000 ONLINE  

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Posted July 10, 2014 - 09:25 AM

Should be able to interchange these , will send you a pm with mailing details.

Some may be stock and some may require custom bushings .



#14 Bolens 1000 ONLINE  

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Posted July 21, 2014 - 07:24 PM

Figured I'd post an update on this

Alan was kind enough to send me some samples to match up :D

 

As luck would have it none of them were standard size and I'll have to special machine the bushings.

The good news is its something that can be done and I'll soon have OEM style idlers available so you guys can keep your machines original and running strong :thumbs:


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#15 Bolens 1000 ONLINE  

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Posted August 02, 2014 - 04:53 PM

Getting closer!

2 Down and one more to go to interchange the 3 I got from MH81

 

The one "v" idler will need a washer on it to compensate for the 1/16'' Bushing, other than that everything will match up 100% original!

 

 

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