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Mtd 990? Need Another Set Of Eyes, Please.


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#106 Moosetales OFFLINE  

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Posted November 16, 2014 - 08:06 PM

Well, I'm working getting the fan off the 1977 MTD 990 I picked up in OH. I have the clip rings out and now I'm trying to get the U joint apart and I'm stumped. I need to pull the yoke apart so I can pull it off the shaft like Lost pup did. Thanks for any help you can offer.

20141116_194848.jpg

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#107 Sawdust OFFLINE  

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Posted November 16, 2014 - 10:59 PM

Oh no not another one. :biting_nails:  Are you using this rear end for the other one? If so is this fan bad too. If not can you just leave the yoke & fan on there so you can install the whole unit like it is. Keep us posted.  :thumbs:


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#108 Moosetales OFFLINE  

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Posted November 17, 2014 - 06:14 AM

Actual MTD 990 Pic

Needed a custom puller to remove the driveshaft yoke.

The other side of the fan is sectioned/divided so with the clip on it

compresses/holds it to the yoke to rotate.

Lost Pup,

 

I've been studying your thread for how to help and there's one step in the process of taking apart the yoke that I can't figure out. After I take out the tension clips/rings how do I get the yoke apart? Thanks. Matthew

 

P.S.

 

This is the step I can't seem to figure out how you accomplished it. I'm guessing the C clamp factored into the equation but how I cannot tell. Thanks.

 

mtd 990.jpg


Edited by Moosetales, November 17, 2014 - 06:41 AM.


#109 Moosetales OFFLINE  

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Posted November 17, 2014 - 06:20 AM

Oh no not another one. :biting_nails:  Are you using this rear end for the other one? If so is this fan bad too. If not can you just leave the yoke & fan on there so you can install the whole unit like it is. Keep us posted. 

 

The fan is in one piece on this tractor and I'm not planning to use this rear end (at this time) so I need to pull the fan. I bought this donor tractor for the fan and a few other parts as well as to have a back up transaxle and hydro pump. Here's to hoping this goes smoothly. This tractor does not appear to have been outside as much so things are coming apart much more easily.


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#110 Sawdust OFFLINE  

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Posted November 17, 2014 - 12:07 PM

Mat since all your wanting is the fan did you check with some of the sponsors on here. No one had one when I needed one so I found a NOS on ebay for $22. I seen one recently for the same & started to buy it just in case I get another 990....love this tractor. They normally go for $50. or more  :(

 

Just found this Mat

http://www.ebay.com/...=item3f2ba25eff


Edited by Sawdust, November 17, 2014 - 12:11 PM.

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#111 Lost Pup OFFLINE  

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Posted November 17, 2014 - 02:11 PM

Lost Pup,
 
I've been studying your thread for how to help and there's one step in the process of taking apart the yoke that I can't figure out. After I take out the tension clips/rings how do I get the yoke apart? Thanks. Matthew
 
P.S.
 
This is the step I can't seem to figure out how you accomplished it. I'm guessing the C clamp factored into the equation but how I cannot tell. Thanks.
 
attachicon.gifmtd 990.jpg


It's a c clamp press for the u joint. Press the cups out. Also a vise could be used as well. Hit up youtube with ( vise u joint replacement )
To see how it's done.
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#112 Moosetales OFFLINE  

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Posted November 17, 2014 - 06:14 PM

It's a c clamp press for the u joint. Press the cups out. Also a vise could be used as well. Hit up youtube with ( vise u joint replacement )
To see how it's done.


Thanks. I saw it done with two different sized sockets so I'll give it a try.
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#113 Lost Pup OFFLINE  

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Posted November 18, 2014 - 12:24 AM

Thanks. I saw it done with two different sized sockets so I'll give it a try.


Of course there is the big hammer method but I was concerned that if I damaged the yoke replacement would be costly.
The new set of u joints I used fit just fine.
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#114 Moosetales OFFLINE  

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Posted November 18, 2014 - 07:38 AM

They say a picture is worth a thousand words so here are four thousand words:

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20141118_063725.jpg

The fan is off safe and sound. Thanks to all who offered feedback.
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#115 Lost Pup OFFLINE  

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Posted November 18, 2014 - 07:43 AM

Great job.
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#116 VTXrider OFFLINE  

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Posted November 18, 2014 - 07:58 AM

Nice update and your puller worked well.

I replaced two u-joints this summer using the vice with sockets and a big hammer and acetylene torch and some choice words.

One on the drive shaft to the tiller and one on the mower deck.


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#117 Sawdust OFFLINE  

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Posted November 18, 2014 - 04:39 PM

Now that was some Yankee ingenuity  :D  Glad you got it off without any problems like before. Now you can go on to better things that need done.


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#118 Moosetales OFFLINE  

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Posted November 19, 2014 - 01:34 AM

I was able to pull together a few video clips that captured most of the process of removing the u-joint from the hydro pump shaft. It's a bit long but one can skip through it easy enough.

 

http://youtu.be/_Hsg2EOjyP4


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#119 Sawdust OFFLINE  

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Posted November 19, 2014 - 10:55 PM

Great job Mat & what a perfect example of improvising. I don't think I could have done all that on camera. Even though I have a whole set of c-clamps everytime I get them out I wished I had a third hand. When that reducer & socket fell I thought you were going to disappear & nothing but the sound of things bouncing off the walls could be heard. Good video tutorial !  :thumbs:


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#120 Moosetales OFFLINE  

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Posted November 21, 2014 - 09:22 PM

The cold is slowing down my painting tasks so I'm turning my focus a bit to some fabrication that I know I'm going to need to do. I recently picked up a snow blower from Doug (DH1) and I knew going into the deal that it was missing some pieces to mount the blower.

 

When I picked up the blower in OH I drove off without the few mounting brackets and turn rod so I'm needing to make things from scratch. Here as some pics of the blower:

 

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I'm hoping that you all might be able to supply me with pics of what I'm missing to mount and run the blower. Remember, the rob and bracket that are in one of the pics are still in OH so I'll need to fab those too. Thanks.


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