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The drive shaft moves and causes my pulley to rub on the drive shaft housing on my 42" Simplicity MFG 1691522 snowthrower

Are there bushings that I am missing as I don't think that drive shaft should be moving that much

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If it's a simplicity then chances are good you have worn out the bearing shimms inside motor housing and it's allowing the shaft to move more , if you want to save it you'll need to open up motor housing and pull pullys off shaft and add new schimms ,bearings too would not hurt to replace, don't forget to replace the housing gaskets with new .

Posted on Nov 23, 2013


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Posted on Jan 02, 2017

  • 389 Answers

SOURCE: installing a bushing

If you bought the engine new from a dealer, ask about the availability of one with the correct shaft size or a crankshaft with a 1" PTO journal that you could install in the new engine.
The manufacturer designed the machine with the 1" PTO shaft for safety reasons. The load put on it during operation may be too much for the 3/4" shaft and cause it to break while running which could KILL some one!
You would have to replace the pulley, there is no SAFE way to use a 1 inch ID pulley on a 3/4 OD shaft, and if I am not mistaken, the keyway in the new engine is 3/16". and even if is 1/4, there isn't a "taller" 1/4" square key.
Just some things to think about! Chuck

Posted on Sep 22, 2009

Testimonial: "thanks for the input. I'll have to seek another solution, perhaps from a machine shop. thanks Mike"

  • 437 Answers

SOURCE: need to remove pulley from spindle to replace

If you do not the facilities to use an impact wrench, you will need to find to hold the pulley and you a breaker bar with a socket on it to get the pulley nut loose. I would use either"PB Blaster or Deep Creep" penetrating oil and spray it on the nut before you try to take it apart.
Or you may find a professional shop, take the deck to them and may may take the pulley off for a small fee.

Posted on Sep 28, 2009

  • 389 Answers

SOURCE: how do i replace the belt on my troy bilt 42

You can loosen the bolts that hold the pulleys and guards far enough to slip the belt in, then tighten them back up. I have also carefully bent the guides back just far enough for the belt to go in, then bent them back in place

Posted on Oct 31, 2009

  • 827 Answers

SOURCE: own a mtd single stage 21" snowthrower ( model

OH YEAH,. I am pretty sure that you have reverse threads on this. Try PB Spray (Penetrating Blaster available in most hardware & automotive stores,. it is a cousin to wd-40 and understand it has superior penetrating ability to get in there,. if you use it -- follow the directions and let it penetrate for about ten minutes.. The only other thing is that to be sure it is reverse direction you may need to try it both ways - perhaps use a 6-point (rather than a 12-pt) socket provided you can get it in there. In addition, try to PULL the wrench or tool TOWARDS you, in stead of away, for the obvious reason it is easier to get more torque, but also that if it slips, you do not break you knuckles apart!!

Finally, you may also need to go to the next level and apply some HEAT directly on the critter rapisly to get it to swell a bit, be careful not to overheat as the entire unit heats up - all of it shall swell together. Finally with heat if it doesn't work, you will have to wait for it to cool ENTIRELY before giving another crack at it.

PS, you may also be able to extend a wrench or ratchet with a pipe to gather more torque on it.

Good Luck withh the project and don't forget a "bigger hammer" method which may be used in combination to apply sharp torque 'hits' to give it a jarring momentum..

Best regards

Posted on Jan 15, 2011

Testimonial: "tHAMKS CK. i'LL GIVE IT A "SHOT"!!"

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B&D Elct mower crapped out today,rock?? started making a funny sound. and the same noise with a lttle white smokeLooks like th a belt of some sort under the blade is out of place. Any suggestions?

You've either broke the motors housing moving the motor out of alignment or the impact on the blade has snapped the drive belt by the sudden torque or it's been jerked off by the sudden stop of the blade it's been yanked off the drive pulleys and the nose is the motor running free with no blade resistance you will need to open up and inspect the drive belt assembley system the blade drive shaft pulley access area and the motor access area to either replace the broken belt or refit the belt if it's not been chewed or damaged by the free spinning motor pulley the smoke it was proberbly the belt rubbing against the motors drive pulley or wrapping up around it burning it through friction
Or your broke the motors drive shaft HOUSING allowing the driving motor and pulley to become misaligned dropping drive belt off
The motor funny noise if a banging around sound then is was the still running motor pulley is bouncing around and rubbing against the deck ect. Causing the smoke if this has happened the impact with the stone has caused a kickback effect on the motor twisting it out of its housing breaking it's secure mounts meaning the decks motor is loose the housing has gone, the MOWER extremely dangerous as the motor can at the speed it's running at 3000rpm it will chew thought the rest of the deck in a matter of seconds throwing and ripping itself from the machine sending chunks of broken deck and the motor flying in all DIRECTION possibly causing injuries to any one within range and as the wires rip apart and a possible nasty and even fatal electric shock please for your own safety do not use the lawnmower
Until it's been inspected by qualified personnel
It is highly unsafe and should either be repaired or replaced which ever the cheaper
Advice to check the area your cutting esp when using a high impact resistant plastic deck lawnmower for hidden foreign objects large and small stones as the small ones can be thrown by the blade like a "bullet"! small toys esp metal cars etcetra will make excellent shrapnel and cut the fabric grass box to ribbion it's also you if directly in the debris path Also not good for your lawnmowers blade or deck
Pavement slabs are defiantly known as the silent MOWER DESTROYER YOU can't hear it, as you aproch you can't see it before it's too late, there's a Loud bang the MOWER stops that exact same instant and the MOWER IS NOW KNOWN AS BROKEN "!
Esp on petrol mowers slabs tend to stop the MOWER dead bending the crank shaft the mowers with a slightly bentccrank will jump Round like it's on steroids or vibrate so badly it will shake itself apart as well as leaving a, very odd sensation in your arms
Deposits from animals are just nasty to clean off the deck and wheels so I clear them up too if THERE are any just in case

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Rebuilt trans installed in 2011. seal leaked in 2012 and was replaced. 2015 leaking again after 7000 miles. Why?

seals depend on a properly positioned shaft upon which they run
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Belt keeps breaking. On poulan pro lawn tractor 42" cutting deck. What could b the cause of this.

Check the alignment of all points of contact, also make sure that all pulleys move freely. A bad bearing could be causing too much friction.

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Check the drive shaft bushings if they are worn the gears are probably binding and this creates the problem you are having.

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Simplicity F3500-- how do I get the bottom off to change the belt?

To change the belt on the Simplicity F3500, unplug the vacuum and turn it upside down. There are two tabs (one on each side) behind the beater bar that hold the cover on the vacuum. Press these tabs inward and lift the bottom plate away from the unit.

Then remove the brushroll and the worn or broken belt from the pulley on the side of the brush roll and the drive shaft. Loop the new belt over the driveshaft and the brushroll. Replace the brushroll in the housing and turn it by hand. Make sure that the belt is seated on the driveshaft and pulley with no twists. Also check that all of the rotating parts will move.

Then put the bottom cover back on by aligning the back hinges and then pressing the plate down until both sides click.

For pictures of the cover removal process, look at page 15 in the manual. The direct link is . Most Simplicity vacuum manuals are available at their support site: .

I hope this helps.

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1 Answer

Model #LT4600 ...the belt that drives the blades comes off the pulleys continously . I take it to the authorized repair service shop (Extreme Engine Service /West Monroe ,La.)fot the repairs ,but it is...

We are a self help / DIY type of site. We provide free and pay for service repair advice at FixYa and are not affiliated with the retailer or dealers of the Huskee LT4600.
Having said that... There are a few thing you as the operator / owner can check.
- With the unit shut off deck raised try teetering each blade up and down by lifting and pressing down on the end of each blade. Watch the blade drive shaft under the mower to see if there is movement in the lower bearing area. Also watch the drive pulley above the deck to see if the blade drive shaft is moving in the mandrel. If you have noticeable moment of any blade shaft BELOW or ABOVE the Deck Base, the most likely problem is the Shaft bearings or the spindle housing (replacements not available for the spindle housing) .

See DETAIL 1 of this link:

Item 57 Bearing (2 ea) Or the spindle shaft Item 56 (1 ea) are the most like suspects.
Note the spacers Item 50 (2 ea) and Item 58 (1 ea)
A problem with any one of the above can cause the blade drive pulley to oscillate in an elliptical vs rotate true. When the pulleys oscillate they throw off the belt repeatedly.

I think your going to find movement of the blade spindle shaft(s) in the spindle housing(s)
Thanks for choosing FixYa,

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1 Answer

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