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  #1  
Old 11-30-2011, 09:14 AM
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There should be a couple of holes in the metal cup the clutch sets back into. There are set screws down on the pulley shaft that probably need to be tightened back up. They are allen screws. One screw will set against the shaft key and one will be 90 degrees from it and set against the crankshaft.
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1973: 128, ag tires, 3pt. lift, spring assist, lights, 42" Deck

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Old 11-30-2011, 09:23 AM
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Here is a good pic. There are access holes in the cup.

pulley.jpg
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1973: 128, ag tires, 3pt. lift, spring assist, lights, 42" Deck

10" moldboard plow

2016 XT1 42" deck 18HP
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  #3  
Old 11-30-2011, 12:41 PM
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Default set screw access holes

Thanks so much for that nice yellow photo. Now I can clearly see where the set screws are located, and I have found them on mine.
Those set screws are really rusted in and I cannot budge them even with a good fitting Allen key. Any suggestions on that item?
It seems that as I am working on this beast, I no sooner identify one issue...but another one pops up. Is there no end????
jim
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Old 11-30-2011, 12:50 PM
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bsyphrit bsyphrit is offline
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there is an end but you just do not know when you get there, remember you are dealing with something that was likely made before men were walking on the moon and things tend to rust even when properly stored.

if your Allen fits snugly do not try and force it, pb blaster and time is your friend here soak it down and wait a day or two, if you think spray it down 2-3 times a day and i have found most things will come loose.

if it is as loose as you described you may want to remove PTO and inspect every thing to ensure there is not to much wear on the shaft.
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Old 11-30-2011, 02:27 PM
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As bsyphrit has said, use plenty of PB Blaster and we are talking for a few days. Give it time to work in. I use a 1/4" drive ratchet an extra long length of Allen tool and a socket that would fit the tool exactly. I cut the length of tool till I was able to slide the socket and tool down till it is securely engaged into the set screw and then would use the ratchet to help apply a good amount of pressure and keep working it. If it didn't feel like it was going to break loose I would squirt it again with some PB and try again the next day.

As for never ending, that is why many of us end up either doing a good complete mechanical overhaul during the winter or as soon as we pick up our cub from a seller. There really isn't a whole lot on these little machines that cannot be fixed or repaired. A person just have to have some patience and time. I was never much on patience in the past, but these last couple of years and my refurbish of my 128 have really made me learn to take my time. Let us know how things go.
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1973: 128, ag tires, 3pt. lift, spring assist, lights, 42" Deck

10" moldboard plow

2016 XT1 42" deck 18HP
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  #6  
Old 11-30-2011, 03:08 PM
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Default PB Blaster...great idea

I just want to say thanks to all who have contributed to the potential cure for my little Cub problem. I will use the PB blaster on those pulley set screws and we shall see what time and patience can do.
It'll give me some time to tend to the other issues.....like trying to find a new front rim. The one that came on the machine had been run without much of a outer bearing left in it, and so the rim is worn away and needs to be replaced....and I cant seem to find one real handy. Would a golf cart shop be a likely place to try?
Charging may be another issue. Grounding the field terminal on the regulator gets it charging quite nicely...for a minute or so, and then the meter indicator drops off again. Maybe the battery is full up and the reg'r is working fine and doing what it should do....or maybe there is a strange regulator problem....I just dont know yet. I'm thinking that a nice solid state regulator would be a good idea......but where could I buy one that will work perfectly with this machine?
Then I will have to repair or replace the headlights. I dont intend do work this machine in the dark...but then you just never know. Summers in South Florida get way too hot during the day...the nights are sometimes much better for getting things done.
And I guess this Cub thing goes on and on and on.
Thanks again guys.
jim
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  #7  
Old 11-30-2011, 04:09 PM
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Quote:
Originally Posted by bsyphrit View Post

if your Allen fits snugly do not try and force it, pb blaster and time is your friend here soak it down and wait a day or two, if you think spray it down 2-3 times a day and i have found most things will come loose.

.

I agree... it's good stuff ... patience that is. PB blaster is good too! :-)

One other hint... if you have a long key and can put the allen key in the set screw and give it a couple good raps on the back end of the key... followed by more PB, the impact can help unfreeze the screw also.


John
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  #8  
Old 12-02-2011, 08:42 AM
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Default Blaster is in....

Here's my plan of attack. I have soaked the set screws with PB Blaster...twice yesterday, and I have turned a small diameter steel rod in the lathe so that the new turned down end will just fit inside the socket head of the frozen set screws, without scraping their sides and possibly damaging the grip surfaces for the allen key.
I will set this rod into the allen head set screw and use it as a device to hammer on, and hopefully assist the Blaster in doing its work.
This way I will save my good tempered snug fitting allen key from abuse.
I'll keep on blasting and hammering until the screws relent.....and it is my fondest hope that they relent someday soon.
My can of Blaster didn't come with a properly fitting tube to spray through, so I am having to make-do with something left over from a can of wd40 or something like that. The trick is to keep the tube into the nozzle of the spray can while spraying...and at the same time, trying to hold the tube at something like a 90 degree angle to focus the blaster in the correct area.
Three hands would be nice! I'll let you know how this episode turns out.
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  #9  
Old 12-02-2011, 09:23 AM
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Three hands would be nice! I'll let you know how this episode turns out.

If you take off the grill 'n hood, you will only need 2 1/2 hands!! LOL

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  #10  
Old 12-02-2011, 07:29 PM
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TIP #1)I use Q-tips W/plastic stems they fit most spray cans. just nip off the cotton ends or leave one end on and use it as an applicator.
TIP #2) If you use the Q-tip for it's intended purpose first, there might be no need for PB cuz that will lube lots of stuff!!
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