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noodlerooney


Joined: Feb 10, 2006
Points: 8

Ariens 11528 Pulley Misalignment
Original Message   Feb 10, 2006 8:28 am
My father recently purchased the Ariens 11528 Snowthrow.  I noticed that the drive pulley (on engine driveshaft, closest to engine) is extremely misaligned with the large driven pully and idler pulley.  I have read on this forum that to adjust, you loosen the set screw(s) on the drive pulley(s) on the engine shaft.  I have looked for these set screws (even in the pulley groove) and have not found them.  The only bolt it has is on the end of the engine shaft.  How do you align the pulley(s)? Thanks for your replies.
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noodlerooney


Joined: Feb 10, 2006
Points: 8

Re: Ariens 11528 Pulley Misalignment
Reply #5   Feb 11, 2006 11:06 pm
By the way, bought from Home Depot, I'm sure they will be a great help.  Maybe I'll just tell Dad to take it back for a refund.
Snowmann


Joined: Dec 3, 2003
Points: 494

Re: Ariens 11528 Pulley Misalignment
Reply #6   Feb 12, 2006 12:01 pm
When the clutch is engaged, the belt alignment should be fairly close. A belt width is not close. There are several sets of mounting holes in the top of the engine deck for various engines. The set of holes for the 318cc Tecumseh engines is exactly the same as that for the Tecumseh 358cc OHV except it is forward by about  .220". My guess is that the engine and mounting straps were placed into the wrong set of holes (11.5hp engine in the 13hp holes). These holes overlap some and connect kinda like a figure 8. This is rare but I've seen it a few times. I have pictures where you can identify whether the engine is in the right postion or not without removing the engine, but won't be able to get them to you until tomorrow. You could remove the belts and unbolt the engine, lift it up a bit and check whether the engine straps are in the front or the rear of the figure 8 slot. You could also measure some reference points (frame feature versus engine base) and compare them to another unit to see if they are different. If they are in the wrong position you can remove the engine and move the bolt straps forward. You can use a hammer and screwdriver to push the rivet forward in the slot, then re-mount the engine. Let me know if this is not the problem.

PK

noodlerooney


Joined: Feb 10, 2006
Points: 8

Re: Ariens 11528 Pulley Misalignment
Reply #7   Feb 12, 2006 6:19 pm
Snowmann wrote:
When the clutch is engaged, the belt alignment should be fairly close. A belt width is not close. There are several sets of mounting holes in the top of the engine deck for various engines. The set of holes for the 318cc Tecumseh engines is exactly the same as that for the Tecumseh 358cc OHV except it is forward by about  .220". My guess is that the engine and mounting straps were placed into the wrong set of holes (11.5hp engine in the 13hp holes). These holes overlap some and connect kinda like a figure 8. This is rare but I've seen it a few times. I have pictures where you can identify whether the engine is in the right postion or not without removing the engine, but won't be able to get them to you until tomorrow. You could remove the belts and unbolt the engine, lift it up a bit and check whether the engine straps are in the front or the rear of the figure 8 slot. You could also measure some reference points (frame feature versus engine base) and compare them to another unit to see if they are different. If they are in the wrong position you can remove the engine and move the bolt straps forward. You can use a hammer and screwdriver to push the rivet forward in the slot, then re-mount the engine. Let me know if this is not the problem.

PK


Thanks for the info.  It will be a few days until I can check Dad's machine.  I look foward to the pictures.
Snowmann


Joined: Dec 3, 2003
Points: 494

Re: Ariens 11528 Pulley Misalignment
Reply #8   Feb 13, 2006 2:37 pm
Noodlerooney,

I've got the photos. PM me your email address and I'll send them. Unless someone with more knwoledge than I can post them for me?

PK

noodlerooney


Joined: Feb 10, 2006
Points: 8

Re: Ariens 11528 Pulley Misalignment
Reply #9   Feb 21, 2006 7:38 am
Thanks Snowmann.  I took the liberty of posting the pictures you sent me.

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