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Reload this Page Cub Cadet 782 IH Hydro Leaking
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  #1  
Old 06-19-2017, 10:53 AM
Reed Mitrowski Reed Mitrowski is offline
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Default Cub Cadet 782 IH Hydro Leaking
I use my Cub Cadet 782 year round with a mower deck, rear tiller, and snow plow. I noticed this spring, after only a few uses over winter, a puddle of Hy-tran fluid on my garage floor. Is this issue probably the relief valves? I would like to replace them and fix this leaking if it is a fairly simple procedure. Thank you in advance!
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Old 06-19-2017, 11:06 AM
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Terry C Terry C is offline
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Originally Posted by Reed Mitrowski View Post
I use my Cub Cadet 782 year round with a mower deck, rear tiller, and snow plow. I noticed this spring, after only a few uses over winter, a puddle of Hy-tran fluid on my garage floor. Is this issue probably the relief valves? I would like to replace them and fix this leaking if it is a fairly simple procedure. Thank you in advance!
Could be a couple of things. Best to clean everything and see where it is coming from. No matter where it's coming from it won't be horrible job.
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Old 06-20-2017, 08:10 AM
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flatpickerray flatpickerray is offline
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Could be a couple of things. Best to clean everything and see where it is coming from. No matter where it's coming from it won't be horrible job.
I agree with Terry, could be the relief valves, the infamous cork gasket, or even some bad seals. You'll have to pull the fenders of to be able to clean it good enough to see where it's leaking.
My 782 had leaking relief valves and a bad cork gasket. It's not really a simple procedure but not that bad either. You can have leaking valves rebuilt, which is what I did, much cheaper than new and just as good.
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Old 06-20-2017, 08:43 AM
Reed Mitrowski Reed Mitrowski is offline
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I took a closer look last night, it does not seem to be leaking from the valves, or the filter, but rather at the bottom where the large hydro tube is located. Im curious if it could be bad o rings in that tube.
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Old 06-20-2017, 08:58 AM
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ol'George ol'George is offline
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Clean if off real good under there as that is where the cork gasket leaks from,
as well as the large expansion plug, but it is not as common as the cork gasket leak.
Use some spray cleaner like brake clean or similar, then dust it with baby power the leak will show up.
my bet is ol "corky" as it has "become of age"
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Old 06-20-2017, 09:02 AM
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DeltaCub DeltaCub is offline
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Clean if off real good under there as that is where the cork gasket leaks from,
as well as the large expansion plug, but it is not as common as the cork gasket leak.
Use some spray cleaner like brake clean or similar, then dust it with baby power the leak will show up.
my bet is ol "corky" as it has "become of age"
That would be opinion too!
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Old 06-20-2017, 10:07 AM
Reed Mitrowski Reed Mitrowski is offline
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Just out of curiosity, because I am not familiar, where is the cork gasket located that is notorious for leaking near the bottom? If it is indeed that gasket causing the leaks would I be best getting a new one from Cub Cadet? Also how extensive of a repair is it? I haven't had time to get the fenders off so I can really get a good look at everything. I know it needs a good cleaning and it would probably be a wise idea for me to totally change the Hy-Tran as the filters have been changed but never the entire amount of fluid. I also have the tiller pulley mount on the back side of the transmission that would need to be removed.
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Old 06-20-2017, 11:21 AM
R Bedell R Bedell is offline
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The infamous Cork Gasket is sandwiched between the back of the Sundstrand Hydro Unit and the Rear End Assembly. The cost of the gasket is about $6.00. If you never have changed on out, allow a day. Most people that have done this before, are looking at 4 hrs.
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Old 06-20-2017, 04:03 PM
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The infamous Cork Gasket is sandwiched between the back of the Sundstrand Hydro Unit and the Rear End Assembly. The cost of the gasket is about $6.00. If you never have changed on out, allow a day. Most people that have done this before, are looking at 4 hrs.
I can vouch for that time estimate. I removed the entire rear end assembly to do because I was doing the axle housing gaskets and I did the axle seals and cork gasket while I had it out. So there was a little more work involved. I don't think the cork gasket can be done with the rear in the tractor. It is heavy, and dirty under there. It helps to have a helper for sure. The most important part is to keep things clean that you have apart, and remember where everything goes when you put it back together. It's a lot of work for a $6 part, but not impossible.
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Old 06-20-2017, 09:06 PM
Reed Mitrowski Reed Mitrowski is offline
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So, if I get into this repair and have to replace the cork gasket, what else should be replaced while I'm "in there?" I planned on totally changing the hydro fluid, probably for the first time ever along with the filter and rear cover gasket. I'd rather replace a few things while I have the chance then have to do it again in the near future. Suggestions?
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