Replacing brake hoses?

Mr. Detail · Post by **Mr. Detail** » 03 Aug 2022, 03:58

Hello, again gentlemen;
Figured I would ask to see how hard it might be to replace all four brake hoses on my P2. I already sprayed all of the fitting ends with WD-40 so that I wouldn't damage the metal lines. The only difficult part might be the bleeding part. Do I need some special bleeder tool?
Thanks in advance.

Post by **kallekula** » 03 Aug 2022, 04:36

Try Deep Creep from Seafoam next time. That sauce will loosen almost any rusty bolt. WD-40 is good for other things.

Post by **abscate** » 03 Aug 2022, 05:03

Before you hit with ( not WD40, see below) do three cycles of 30 seconds propane heat and cool on the metal to hose junction

After the last cool hit with one of these

Liquid wrench, pb blaster, deep creep, Kroil, 50/50 acetone and ATF mix

Post by **jonesg** » 03 Aug 2022, 06:35

I bought new flare wrenches on amazon, they worked good, didn't have much trouble at all, sprayed something or other on the fittings .

Bleeding was a matter of pumping up pressure , brace the pedal against the seat with a stick and open/close the bleeder until it no longer sputtered. Did it 3 times on both sides. Used a 12 inch section of clear tube on the bleeder to direct fluid at the ground. Its easier to see the air bubbles with the tube.

Post by **cn90** » 03 Aug 2022, 06:47

- FRONT Brake hoses are subjected to up/down and R/L turn movements, and are usually cracked at 100K miles. So yes replace them.

- REAR brake hoses usually last > 200K miles. Check, if no cracks, leave them alone.

- Use ATE, FTE or Corteco brands, about $10/each.

- I wrote the tips/tricks in this forum...

Post by **cn90** » 03 Aug 2022, 06:49

I bleed using air compressor and modified ATE cap...info in forum.

Mr. Detail · Post by **Mr. Detail** » 03 Aug 2022, 08:28

Thank you everyone! I do have a can of "PB Blaster" in the garage. Will re-do. Also will run over to Home Depot and buy a small tank of propane with adapter end.

Mr. Detail · Post by **Mr. Detail** » 03 Aug 2022, 08:32

Sorry, follow-up question. Does anyone know the size(s) needed of flare wrenches for my P2? Metric I will assume.

Post by **jonesg** » 03 Aug 2022, 10:33

Mr. Detail wrote: ↑03 Aug 2022, 08:32 Sorry, follow-up question. Does anyone know the size(s) needed of flare wrenches for my P2? Metric I will assume.

13mm worked for me.
these cost me around $12, excellent.

https://www.amazon.com/SATA-Full-Polish ... r=8-2&th=1

Post by **BlackBart** » 03 Aug 2022, 12:16

If you have a local NAPA store, they should have a small metric set.