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  #11  
Old 05-05-2019, 10:15 AM
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ol'George ol'George is online now
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This will take care of your leaking relief valves.
Ebay # 320670405175.

And it is common for the old worn/hard "O" rings, to leak more in the winter
than summer.
Since you can't rebuild the valves without dissembling them, and that is not doable without cutting them apart I wonder how you did it as you say?
Possibly you just replaced the outer "O" rings, not the little inner ones.

The charge pump runs @ a max of less than #1000 on a ported pump
usually #500 or so for a non ported pump.
The implement lift requires a higher pressures on a ported pump.
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  #12  
Old 05-05-2019, 10:59 AM
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Alvy Alvy is offline
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George he stated that he bought new valves after he rebuilt his and the new ones also leaked. Need to check the pressure yes?
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  #13  
Old 05-05-2019, 11:14 AM
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ol'George ol'George is online now
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Quote:
Originally Posted by Alvy View Post
George he stated that he bought new valves after he rebuilt his and the new ones also leaked.
I saw that, thought he only bought 1,
but I've BTDT,& had a new one I bought leak in less than 12 mo.
A fluke I guess.
I put in a used one I had, and all was well, and still is.
Looking Back, I think I didn't say the magic word like Groucho used to say.
Aww well, way before your time Ha,LOL.
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  #14  
Old 05-07-2019, 01:01 AM
IH1086 IH1086 is offline
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Ol George, to answer your questions, I did remove and rebuild both valves. I have a bench top wood lathe I picked up at an auction that I put a jaw head on from a junk milling machine. It's crude but works good for polishing shafts and such. I read a thing on here about doing it yourself with a metal lathe, so I thought I'd try mine with a file instead, and it worked. That didn't fix the problem, so I figured I goofed them up somehow. Apparently not though because the two new ones I bought from HB didn't do the trick either. I'll get to the bottom of it yet.
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  #15  
Old 05-07-2019, 09:12 PM
Tom Dowling Tom Dowling is offline
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It figures--- I read this thread and sure enough the same thing happens to my 682 tonight while mowing grass. Hytran oozing out of the little hole on one of the valves. What causes this to happen, Is it just the valve needing attention or is there something else that causes it?
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  #16  
Old 05-07-2019, 10:17 PM
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Quote:
Originally Posted by Tom Dowling View Post
It figures--- I read this thread and sure enough the same thing happens to my 682 tonight while mowing grass. Hytran oozing out of the little hole on one of the valves. What causes this to happen, Is it just the valve needing attention or is there something else that causes it?
Age, wear and tear. Seals harden, dry out and
lose the elasticity. Very common problem. However OP's problem with high pressure, if true, is not common. We are still waiting to hear the results.
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  #17  
Old 05-07-2019, 11:57 PM
IH1086 IH1086 is offline
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Sorry for not getting back with results. Been a cool wet spring so far, so we been trying to get anything we can done before we get more rain tomorrow and Thursday, and again this weekend. If I can't get to it this week I'll for sure find time this weekend. Part of the reason I love this thing is I can keep the ditches mowed even if they're still a little wet. My Gravely just spins out and makes a mess. They are getting tall already, so I need to get my but in gear!

Tom D, I know a lot of people have issues with their check valves leaking, and I don't want you to follow this thread thinking this will be your issue. Follow along and by all means chime in if I'm missing something, but I'm pretty sure you're lucky and just have a tired valve. As much as I've looked around, I believe this is at least for now specific to my machine. Plenty of used rebuilt and new ones around. Very simple repair, and I'd start there if I were you. I do know a few have said you don't need to take the whole fender well off to do the repair, but if you don't you be amazed how much oil and gunk you'll have in there the next time you do have take it off. Don't ask me how I know that.

My biggest reason for coming here, other than the fact that there is so much knowledge on this site, is that if I just bought it in somewhere to get fixed, the story stays untold for the next guy to read up on if having similar issues. I love asking the Google machine questions and finding answers!
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  #18  
Old 05-08-2019, 07:15 AM
R Bedell R Bedell is offline
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The problem with leaking check valves is this little internal O Ring.
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File Type: jpg Check Valve-B.jpg (7.2 KB, 89 views)
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  #19  
Old 05-08-2019, 08:09 AM
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Quote:
Originally Posted by IH1086 View Post
Sorry for not getting back with results. Been a cool wet spring so far, so we been trying to get anything we can done before we get more rain tomorrow and Thursday, and again this weekend. If I can't get to it this week I'll for sure find time this weekend. Part of the reason I love this thing is I can keep the ditches mowed even if they're still a little wet. My Gravely just spins out and makes a mess. They are getting tall already, so I need to get my but in gear!

Tom D, I know a lot of people have issues with their check valves leaking, and I don't want you to follow this thread thinking this will be your issue. Follow along and by all means chime in if I'm missing something, but I'm pretty sure you're lucky and just have a tired valve. As much as I've looked around, I believe this is at least for now specific to my machine. Plenty of used rebuilt and new ones around. Very simple repair, and I'd start there if I were you. I do know a few have said you don't need to take the whole fender well off to do the repair, but if you don't you be amazed how much oil and gunk you'll have in there the next time you do have take it off. Don't ask me how I know that.

My biggest reason for coming here, other than the fact that there is so much knowledge on this site, is that if I just bought it in somewhere to get fixed, the story stays untold for the next guy to read up on if having similar issues. I love asking the Google machine questions and finding answers!
If you feel that you are running pressures that are too high, put a pressure gauge on it and find out for sure.
every .015 shim= approx #100
https://www.google.com/imgres?imgurl...&iact=c&ictx=1
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  #20  
Old 05-10-2019, 03:07 PM
IH1086 IH1086 is offline
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I'm not sure if this is actually too low. Readings at high idle, and WOT. I'm going to try shimming it I guess. There aren't any shims in there right now. I just need to find something....
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File Type: jpg IMG_20190510_134458865.jpg (30.1 KB, 75 views)
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