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  #1  
Old 10-29-2017, 09:27 AM
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charlie105 charlie105 is offline
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Default Hydro line leak / replacement torque?

OK I did have to split the 105, and yes you all told me so. Grrrr. Had to replace; the input shaft seal, driveshaft, drive hub,rear coupler, rag joint, hydro filter, the hydro suction line and drained the hydro fluid. I replaced the suction line with the (later?) right angle unit. Not sure what I did wrong when I installed it, but it is leaking, and the transaxle is still empty. I tightened the fittings per the manual-finger tight then 1/4 turn. It was leaking at the fittings the next day, soooo I tightened a “little” more,maybe 1/2 turn total. Still leaking. Have I damaged the ferrules, and is there a procedure for installing/aligning the 3 piece unit ?
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Old 10-29-2017, 10:22 AM
J-Mech J-Mech is offline
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Where is it leaking? At the pump, or on the rear end?

Why did you replace the original line?

I doubt you damaged the ferrule, but it's not uncommon for a ferrule to only seal one time. Each rear end is different, soit seals in a different place. If it is leaking at the lower nut, tighten it more. If it still leaks, get a different line, or replace the ferrules.

No, there is no torque spec.

No, there is no procedure for "alignment".

No, thread tape or sealants will not help.
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Old 10-29-2017, 11:34 AM
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charlie105 charlie105 is offline
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Default 105 hydro suction line

I replaced it because it was leaking, and to use the simpler right angle line. All 4 joints are leaking, and that is with only the residual fluid left after draining the trans. Thanks, Steve
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Old 10-29-2017, 11:39 AM
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johncub7172 johncub7172 is offline
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Quote:
Originally Posted by charlie105 View Post
OK I did have to split the 105, and yes you all told me so. Grrrr. Had to replace; the input shaft seal, driveshaft, drive hub,rear coupler, rag joint, hydro filter, the hydro suction line and drained the hydro fluid. I replaced the suction line with the (later?) right angle unit. Not sure what I did wrong when I installed it, but it is leaking, and the transaxle is still empty. I tightened the fittings per the manual-finger tight then 1/4 turn. It was leaking at the fittings the next day, soooo I tightened a “little” more,maybe 1/2 turn total. Still leaking. Have I damaged the ferrules, and is there a procedure for installing/aligning the 3 piece unit ?
I can assume the leak would be at the bottom of the suction tube, at the entry of the reservoir. This would be drainage from the pump. In the Blue Ribbon Service Manual, for the International Cub Cadet Tractor models: 86, 108, 109, 128, 129, 149, 169, 800, 1000, 1200, 1250, 1450, and 1650 # GSS-1464 located in the forum's Tech Section, you might find some insight on page X, XI titled Standard Torque Data For Hydraulic Tubes And Fittings.

I know the differences between the narrow frame and wide frame, but this info might still help. I just installed the suction tube to the pump on my 1450 yesterday, and I did use thread tape wrapped the correct direction on both ends of the suction tube and I doubt that I will have any leaks in these areas.

I don't think you have your tube installed and aligned correctly, as they are more challenging to work around.
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Old 10-29-2017, 11:48 AM
J-Mech J-Mech is offline
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I replaced it because it was leaking, and to use the simpler right angle line. All 4 joints are leaking, and that is with only the residual fluid left after draining the trans. Thanks, Steve
All 4 joints? There are only 2..... where are you getting 4?
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Old 10-29-2017, 11:49 AM
J-Mech J-Mech is offline
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I just installed the suction tube to the pump on my 1450 yesterday, and I did use thread tape wrapped the correct direction on both ends of the suction tube and I doubt that I will have any leaks in these areas.
John, on a ferrule style compression fitting, the threads do not seal. The ferrule does. Using tape is unnecessary, and will not prevent leaks.
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Old 10-29-2017, 12:03 PM
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johncub7172 johncub7172 is offline
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John, on a ferrule style compression fitting, the threads do not seal. The ferrule does. Using tape is unnecessary, and will not prevent leaks.
So these ferrule style compression fittings use O rings? The information I provided talks about the ferrule style and swivel joints.
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Old 10-29-2017, 12:11 PM
R Bedell R Bedell is offline
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Quote:
So these ferrule style compression fittings use O rings?
Ferrules and O rings are two totally different animals. Ferrules are usually made of brass and O rings are a rubber/synthetic type of product.
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Old 10-29-2017, 12:14 PM
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charlie105 charlie105 is offline
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IT is a 90 deg. Elbow line with fittings at both ends, and 2 fittings at the elbow junction.
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Old 10-29-2017, 12:28 PM
J-Mech J-Mech is offline
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IT is a 90 deg. Elbow line with fittings at both ends, and 2 fittings at the elbow junction.
Oh, ok. You used the tube with the fitting at the elbow.

So, you are saying all 4 joints leak? If that is correct.... tighten them more. They are either going to seal or not. If they don't..... replace all the ferrules and try again.
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