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#1
03-16-2010, 07:56 PM
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149 hydro gasket questions
I am getting geared up to fix a huge leak on my 149's hydro unit. I have yet to clean it good and look close for the source of the leak. It started out a slow leak a couple of years ago and now it is pouring. My main question is I read about the "cork" gasket needing replaced. I am assuming this is the large gasket that goes between the two housings of the pump? I have the service manual and what I am looking at on the diagram is part #26. If I pull the pump to change this would it make since to go ahead and change out the other seals?
This is a first for me so I'm learning. I have two 149's so I may do this to the one that is partially dismantled first to get a feel for it before doing my runner. Any tips? I have read the Cub Cadet FAQ by Richard C. Christensen on this. He says all three of the seals can "probably" be replace without taking the pump apart. Can they? If so, how? He does say the seal on the trunnion shaft can't be changed without disassembly. I will do the tests he recomends first to track down the leaks, but just trying to get some input on seals, etc.... I need to get a parts list together and hopefully attack this in a couple of weeks. 
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#2
03-16-2010, 08:44 PM
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Hi Cub149!
I just pulled my 1450 hydro out for a leak between the hydro and rear end. As you can see the original seal / gasket was shot. I checked all the other seal for any signs of being wet and found none so I did not change the other seals around the shafts.
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#5
03-16-2010, 10:49 PM
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i just pulled my 129's hydro due to the trunnion bracket in need of repair and leaks in a trunnion seal and the pump shaft rear seal. i went ahead and replace the other two seals while i had it apart. both the front and rear hydro pump shaft seals are the same.
be sure you clean the charge pump housing and pump housing completely before removing the charge pump and splitting the case. also, take a few more minutes and disassemble the pump and motor cylinder blocks and clean them. the motor cylinder block on mine was clean but the pump cylinder was caked with sludge. i purchaced the seals from NAPA. pump.JPG
__________________
100(2) 128, 129, 76(1/2)
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#6
03-16-2010, 10:55 PM
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I would just replace the 3 seals that are replaceable without taking the pump apart. I would not open that up unless you need to. Cleanliness is extremely important, and any little piece of dirt, or even a hair, can destroy the pump. I have done it a couple of times, but there are a few things you must be very careful of (follow the manual) or you'll wreck the pump. Redwaycc's situation is unusual...I've had a few of these apart, and all were clean as a whistle inside.
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#8
03-29-2010, 10:40 PM
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Well, I dove in head first this evening. I got both tractors clean the other day and broke them down this evening. I took the good pump off my runner and used the rearend from the parts tractor as the runner had a chip out of one of the bolt holes(PO owner had filled it with silicon caulking and it never has leaked). I managed to get the rearend back in the runner but will have to finish tomorrow. I am also putting the 3pt hitch on from the parts tractor.
This is all a first for me and it's not as bad as I had imagined. I did buy the cork gasket and the rear plate gasket but I made a copy of them to make my own when I put the parts tractor back to running. That rear gasket was 14 bucks at the dealer. I guess I will find out tomorrow if the leak is gone.
__________________
Chip T. Drexel NC
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Cub Cadet is a premium line of outdoor power equipment, established in 1961 as part of International Harvester. During the 1960s, IH initiated an entirely new line of lawn and garden equipment aimed at the owners rural homes with large yards and private gardens. There were a wide variety of Cub Cadet branded and after-market attachments available; including mowers, blades, snow blowers, front loaders, plows, carts, etc. Cub Cadet advertising at that time harped on their thorough testing by "boys - acknowledged by many as the world's worst destructive force!". Cub Cadets became known for their dependability and rugged construction.
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