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jrtrebor


Location: Michigan - 3 hours north of Chicago on the lake
Joined: Feb 10, 2010
Points: 539

Well, bought another new to me SS - Toro 210R
Original Message   Feb 13, 2012 7:33 pm
That brings the Toro count to five.   It really needs to snow so I can get rid of a couple.  Or just stop counting.  Got this one at another auction for $29.00 .
Said it needed a flywheel...  It does and has a few more issues,  But the rest of the blower is in excellent condition.  2010 model  210R   38517  



Flywheel is junk.  This is like the chicken or the egg thing.  Don't know what could cause this.
Unless the nut backed off.  But the magneto did get trashed.  Nor did the recoil.
So what ever happened it happened fast.  Ive seen keys shear if the engine does a massive seize.
Or drops a rod off the crank.  But I've never seen a hub crack even thought it's aluminum.






Tore up the key way slot as well.
What's interesting is that the slot is flared out on both sides.
There is galling on the crank so the flywheel did spin at least a couple of times.
Maybe someone installed the wrong size key? Which allowed it to tip in the slot first.
Then things just started to happen. 





Took out the governor parts.




Am finding out some interesting things.  Such as, I've got a flywheel off of a 1999 Toro CCR2400 and according to
the Toro Parts Master.  The two engines (084132-0120-E1) are the same and they both use the same flywheel.
I say they are the same, but one is an E1 and the 210R is and E8 not really sure what that is?
They also both use the same crank.  And I have the crank as well.
Haven't  decided exactly what I'm going to do with the key way slot.  The slot still has some pretty good sides but
the top portion is pretty bad.  I may just eith tack weld a new key in place on the sides.   Then square it back up with a with a cutting wheel
on a Dremel.  Not sure.  I cleaned it up and it doesn't look to bad.




The casing is so close to the auger pulley that you can't get the belt off without taking off the pulley.  The casing doesn't appear to be bent.
From what I could see.  That's a pain.





The cutting edge / scraper tilts under spring tension.  And is much beefier than the older ones.  It would also be easier to replace.
Two bolts, and they are in a much better location.  Won't take as much abuse and rust as badly.





The tank just slips on a mounting post.  That's it, no other supports other than the neck going through the top cover.



And there is a little "tang" that hooks on the edge of the oval opening that keeps it from sliding off.  Once you push it all the way down and on.
Which it is not in the photo.




Overall the thing is in really good condition.
I also looked down the plug hole and there isn't any carbon at all on the head of the piston, none.
Which is a little strange. 



This message was modified Feb 13, 2012 by jrtrebor
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aa335


Joined: Nov 29, 2008
Points: 2434

Re: Well, bought another new to me SS - Toro 210R
Reply #6   Feb 14, 2012 10:02 am
Nice score on that 221QR.  You've got at least $200 in sellable parts on that machine.   Good luck on getting it sorted out, hopefully it just needs a new flywheel.  Looking at the pictures, you can see why Toro is ahead of the game, there's some smart engineering here and there.
jrtrebor


Location: Michigan - 3 hours north of Chicago on the lake
Joined: Feb 10, 2010
Points: 539

Re: Well, bought another new to me SS - Toro 210R
Reply #7   Feb 14, 2012 1:35 pm
Well in comparing the two flywheels there are a few significant differences.
One in particular, that I believe maybe responsible for the flywheel hub breaking.
You can see that the older flywheel on the right has a steel center.  I think what may have happened is that
the new flywheel without the steel center may been over torqued or that the torqued rating was to high.
And that when it is tightened down onto the tapered crankshaft, it acts as a wedge and splits / cracks / fractures
the hub.  Once it's put into use the stress vibration etc.. starts working on the stressed point it gets a little wobbly,
out of balance and the end comes quickly at some point.  All just speculation.
But having an all aluminum hub on a steel shaft with a steel key way.  Probably isn't a good idea if anything gets a little loose.
For what ever reason.
 It's also possible I guess that the flywheel wasn't as tight as it should be. 
What ever was the start or cause.  It's easy to see that having a steel center is a far better design.
     

Got a new key and mounted the older flywheel so I could check for spark, and discovered another problem.
Things looked okay with the coil.  But after mounting the flywheel I could see that the air gap was way to much.
Like an 1/8" of an inch.  I assumed that the flywheel had hit it and moved it, which it did.
But as I loosened the bolt on the right on the right side of the coil.  The entire mounting stud on the left side pulled away from
the block.  The flywheel hit the coil hard enough to break the stud right off the head.  Not a major deal to repair, just another
one of those odd things that happens when things go wrong.  Actually it's probably better that the stud broke and the coil moved
out of the way.  Or it might have gotten torn up and would have to be replaced.  There is no damage to the legs thankfully.

By the way the new key fits nice and snug in the slot no movement at all.  And the flywheel has no rotational play either.  So I think I'm just going to leave the crank slot the way it is.
And rely on the taper to keep the flywheel tight and aligned on the crank.



jrtrebor


Location: Michigan - 3 hours north of Chicago on the lake
Joined: Feb 10, 2010
Points: 539

Re: Well, bought another new to me SS - Toro 210R
Reply #8   Feb 14, 2012 1:53 pm
aa335 wrote:
Nice score on that 221QR.  You've got at least $200 in sellable parts on that machine.   Good luck on getting it sorted out, hopefully it just needs a new flywheel.  Looking at the pictures, you can see why Toro is ahead of the game, there's some smart engineering here and there.

Thanks aa335.  I think I now know what it's going to need to get it back up and running.  The only parts that I'm probably going to have to buy will be the governor parts.  I don't know whether the owner
forgot to put them in the box.  Or whether the flywheel ripped them up, either way I don't have the vane, the gov. rod and some other part.  The mount is still there and intact.  I think the parts will run about
10 or 12 dollars.  Other than that (fingers crossed)  I'll have a less than 2 year old blower for around $50.00 or so.  I'm thrilled.  But the way things are going here it may be next year before I might be
able to really put it to a test.

Your right about Toro.  I really like the new cutting edge / scraper bar design.  Also on the the smartest changes they made.  Was putting a one bolt removable panel that exposes the entire
carb.  and access to it and all the linkage.  Get idea.  I take a few pictures when I get all the covers back one.
They also redesigned  the cable pull linkage and routing for the tension pulley arm.  Pulling on the bail has a much smoother feel to it.  They also raised the sides of the blower up just a little
so that now as your scrapper bar and paddles wear you don't end up grinding down the actual sides of the blower housing itself.  If you wait a little to long to replace those items.
aa335


Joined: Nov 29, 2008
Points: 2434

Re: Well, bought another new to me SS - Toro 210R
Reply #9   Feb 14, 2012 2:06 pm
jrtrebor wrote:

     


That's quite a significant difference between the newer flywheel (left) and the older flywheel (right).  Not only older flywheel has a steel insert, but the area surrounding the insert is raised and has a thicker cross section.  In addition, there also four ribs radiating from the center outward.    I'm not saying that the newer flywheel design doesn't perform as well, but it is likety to be more prone to failure when it is not properly torqued down (too loose or too tight) or when casting defects are present.  The newer flywheel was probably a result of a cost cutting or value improvement program.  1)  Remove steel insert, 2) Lighten flywheel to reduce material use and shift the rotating mass outward to keep the same polar moment of inertia. 

If I were tasked to reduce cost, these are the first two areas that I would probably concentrate on.  It's a valid change, but definitely reduce the safety factor.  It's a fine balance, reliability and cost.  :)  You can optimize a component up to a certain point to reduce costs, that has to balance out with warranty claims and recall costs. 
This message was modified Feb 14, 2012 by aa335
trouts2




Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1328

Re: Well, bought another new to me SS - Toro 210R
Reply #10   Feb 14, 2012 3:30 pm
   The 38517 should probably be 38587.

    Looked at the PL for the back and it looks like it might just be big enough to get the carb out which would be very nice.  Murray addad a pannel which is just enough to make a linkage adjust with a screwdriver but that's about it.

   No listing in the manuals for RPM.  Do you what those ran at?

   Nice rig and great price.  Also great picts and review.

This message was modified Feb 14, 2012 by trouts2
jrtrebor


Location: Michigan - 3 hours north of Chicago on the lake
Joined: Feb 10, 2010
Points: 539

Re: Well, bought another new to me SS - Toro 210R
Reply #11   Feb 14, 2012 5:17 pm
trouts2 wrote:

  No listing in the manuals for RPM.  Do you what those ran at?

   Nice rig and great price.  Also great picts and review.


trouts2 - All it says in the manual is.  Torque values are derived at 3060 RPM; horsepower values are derived at 3600 RPM.
It also states "Engine power will decrease 3-1/2 % for each 1000 feet (300 meters) above sea level"
Thanks for your comments
borat


Joined: Nov 10, 2007
Points: 2692

Re: Well, bought another new to me SS - Toro 210R
Reply #12   Feb 14, 2012 6:03 pm
JRT:

That's the 5 h.p. R-tek right? 

I have a Toro PDF file  that  shows the operating range from 3850 to 4250 rpm.   At 4250, my Toro is a handful to hold back.  I'm certain that it's making over 5 h.p. at 4250.
This message was modified Feb 14, 2012 by borat
trouts2




Location: Marlboro MA
Joined: Dec 8, 2007
Points: 1328

Re: Well, bought another new to me SS - Toro 210R
Reply #13   Feb 14, 2012 6:13 pm
    Interesting on the 3.5%.   Suprising it is that much.

    I looked again at the manuals and no hp and torque figures given.  If you have Toro lit that gives the torque and hp numbers for those rpm's please list them

This message was modified Feb 14, 2012 by trouts2
borat


Joined: Nov 10, 2007
Points: 2692

Re: Well, bought another new to me SS - Toro 210R
Reply #14   Feb 14, 2012 6:35 pm
No h.p. rating just engine operating speed ranges for various Toro products.    If you look around on the Toro site, they have a lot of data in .pdfs.    Note that this lists the different engines Toro used.

When I mention  five horsepower, that's the advertised output for the 141 cc R tek engine.  If it's making 5 h.p. at 3600 rpm, then the additional 650 rpm to bring it up to 4250, will give a considerable boost in power.  Two stroke power builds considerably with revs.  From my experience with the R-tek engine, it make noticeable power with even moderate increases in rpms. 



 
This message was modified Feb 14, 2012 by borat
jrtrebor


Location: Michigan - 3 hours north of Chicago on the lake
Joined: Feb 10, 2010
Points: 539

Re: Well, bought another new to me SS - Toro 210R
Reply #15   Feb 14, 2012 7:24 pm
borat - Yes, it is the 5hp R-Tek
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