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Hydraulic tube assembly

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Skip Kmitch

Well-known member
Joined
May 16, 2020
Messages
85
Location
St. Cloud, MN
Experience with this anyone?
Replacing the hydraulic tube assembly and tube assembly nut on a 1650 as a leak has developed. The parts information appears to also show an o-ring? The assembly being replaced does not have an o-ring. Could this be an upgrade or is the o-ring not a necessary part of the assembly?
Thanks
Skip
 

Greg Riutzel

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IHCC Supporter
Joined
Jul 9, 2020
Messages
228
Location
Lebanon, Oregon
I've had the pump off on my 1650 last summer. No Oring on the tube. I too thought a leak was there. Turned out the pump's cork mounting gasket was failing and slowly weeped down the casting and off the tube. New gasket later all is still dry.
 

mgonitzke

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Joined
Aug 4, 2006
Messages
4,283
Location
Wichita, KS
displayname
Matt Gonitzke
I assume you mean the suction tube from the transaxle to the hydro pump? The hydro pump end is a flare fitting, and the transaxle end is a compression fitting. The "O-ring" you are seeing is a compression sleeve.

I agree with Greg, it is likely the cork gasket is leaking, not the suction tube.
 

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