Pin hole leak in hydraulic line

EUG560 · Jul 24, 2023

I have 656 Farmall with a small pin hole leak in one of the steel hydraulic lines in front of the seat. I was going to attempt to braze it shut, but wondering if there are any other options besides swapping
out. Thanks in advance for any advice.

Blackhole49 · Jul 24, 2023

If doable, brazing would be my choice.

RESLLS · Jul 24, 2023

Pressure line only 2 choices. Braze or replace. If it's a suction line an epoxy would probably work.

Janicholson · Jul 24, 2023

It needs to be removed and the oil rinsed out before brazing. Doing it on the tractor is both dangerous and likely to contaminate the hydraulic system. Power wire brush the area to braze, use flux, and make the repair the size of a nickle and as thick, with all edges wetted to the steel. Jim

flying belgian · Jul 24, 2023

How come I can never get brazing to work on a hyd. line. I try but end up replacing in the end.

Janicholson · Jul 24, 2023

Clean and new exposed base metal, no mill scale (grey thin crust on steel) then flux and application of flux prior to rod melt. a wetted surface then results in a clean permanent repair. Jim

Welding man · Jul 25, 2023

I repair about one a week it seems, did one yesterday. Some I gas weld, some I TIG weld, Some I Braze. Depends on the thickness and if it if pitted.

Pin hole leak in hydraulic line

EUG560

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Blackhole49

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RESLLS

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Janicholson

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flying belgian

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Janicholson

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Welding man

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