BX TD Break return pipe broken - no access

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marrowpe
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BX TD Break return pipe broken - no access

Post by marrowpe » Mon Jul 03, 2017 5:46 pm

Hello. My problem: on my BX TRD Break there is a hydraulic oil leak on the right back side. One of the two plastic return pipes coming out of the bellow, the rear one, disappears vertically in that metal tube which leads to the other side of the car. I could pull the pipe out, apparantely it´s torn. The oil is running out of the apperture where that tube originally went in. I guess i that tube there must be a T connecting the return pipes. Question: How can I get there? What´s the operation?
Thanks a lot for tips!
Peter

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Re: BX TD Break return pipe broken - no access

Post by senmathal » Tue Jul 04, 2017 10:13 am

This pipe is only a ventilation pipe and should not connect anything, just went in to the metal tube in the rear frame. The other pipe is the return pipe. If oil comes out of the went pipe you have a big internal leakage or have changed the two pipes with each other.

/Mats

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Re: BX TD Break return pipe broken - no access

Post by Jaba » Tue Jul 04, 2017 10:19 am

One of the two plastic pipes you mention does just go into transverse tube as it is an air breather. The other one goes into a rubber T piece on the right hand side just above and at the end of the transverse tube. It is difficult to see, find and connect to so good luck ! I can't tell you which is which from memory so just look at the other side to see which one is the breather.
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Re: BX TD Break return pipe broken - no access

Post by marrowpe » Tue Jul 04, 2017 3:07 pm

Thanks for the answers. Mats, oil doesn´t come out of the vent pipe. It comes out of the hole where the vent pipe disappears (after pulling out the vent pipe). I can´t see any tubes or T pieces, only one which lies more or less above the transverse tube, but it seems to be cut. No access.I wonder if I have to take away the transverse tube. How?

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Re: BX TD Break return pipe broken - no access

Post by Dragon Man » Thu Jul 06, 2017 2:07 am

hmm ok i recently rebuilt my whole LHM system on my break. the pipes furthest away from the sphere are for airflow only (they just use metal sub frame tube as a vent). if somehow the bellows are pushing LHM into the large metal tube of the sub frame then the rear suspension pistons are leaking.

the only pipe that should have LHM in them are the pipes closest to the sphere as said this just goes into a T which then runs through the larger of the 2 solid clear plastic pipes which run in along with the fuel lines.

from what i have seen with mine no LHM should make it into the rear subframe unless the O ring seals in the rear suspension pistons have failed. if all else fails, just make all new pipe out of 6mm polyurethane pneumatic air pipe and push fitting (nylon pipe is to hard and you cant force it into the rear subframe for ventilation). it looks neat too!

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Re: BX TD Break return pipe broken - no access

Post by senmathal » Thu Jul 06, 2017 6:28 am

marrowpe wrote:
Mon Jul 03, 2017 5:46 pm
One of the two plastic return pipes coming out of the bellow, the rear one, disappears vertically in that metal tube which leads to the other side of the car.
Peter


The rear one? Have you change them with each other? I think it is the front one which will go in to the metal tube. The rear one is the leak return and from this one it´s normal that it will come a small amount of oil. As Dragon Man says "the pipes furthest away from the sphere are for airflow only"

/Mats

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Re: BX TD Break return pipe broken - no access

Post by marrowpe » Thu Jul 06, 2017 2:02 pm

thank you very much. tomorrow I´ll have a look...

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Re: BX TD Break return pipe broken - no access

Post by marrowpe » Thu Jul 20, 2017 6:11 am

Finally I had time to check it out. Once I found the pipes it was easy. The T was broken, I replaced it with a T for gardening irrigation. Problem solved.
BUT: there is a new problem: The left front automatic window doesn´t close properly, I have to guide it into the groove. I opened the inside of the door, but couldn´t understand how to fix it. The rubber seems to be ok. Thanks for tips

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Re: BX TD Break return pipe broken - no access

Post by senmathal » Thu Jul 20, 2017 2:22 pm

Is all screws for the mechanism properly tighten?

/Mats

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Re: BX TD Break return pipe broken - no access

Post by marrowpe » Sat Jul 22, 2017 7:45 am

...yes, they are. The window is hanging down somehow on the right sight. When I hold it up on the left side, it closes properly. I haven´t really understood how the whole mechanism, the metal bar, is fixed. Is it fixed on the electric motor? Lying on an axle?

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Re: BX TD Break return pipe broken - no access

Post by really? » Sat Jul 22, 2017 5:51 pm

Sounds as though the rail has rusted. This is the metal that covers the bottom of the glass.

Mine has just done exactly the same. Bought a new rail from Chevronics to put on.

When the mechanism pushes the bottom of the window to close it, it just bends and twists the rusted rail allowing the glass move sideways in the door.

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Re: BX TD Break return pipe broken - no access

Post by marrowpe » Sun Jul 23, 2017 5:43 am

Thanks for the reply. I have an old door, I guess it will be easier to change the door than the rail.

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Re: BX TD Break return pipe broken - no access

Post by saintjamesy89 » Sun Jul 23, 2017 10:31 am

Or if the rail isn't rusted, there could be play in the mechanism. It works as a scissor action, one of mine had enough play in the pivot point of arms for the glass to fal out of the guide grooves. I've done both of the fronts in my GT and replaced both mechanisms and runners each side - the runners had been bodged, with a seperate (non-BX) runner for each arm glued to the glass!
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Re: BX TD Break return pipe broken - no access

Post by marrowpe » Mon Jul 24, 2017 6:05 am

How do you get the rail out? Can you put the rail from the right side door to the left side?