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Have you ever had a clogged brake lines?


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While waiting on my ECU I started working on my rear brakes that didn't work. I tried everything peddle would get hard but the brake pads never moved. I finally took the brake lines off the rear caliper brake peddle would still pump up. Long story short both brake lines two inches before going into the caliper the fluid had crystallized. I used .31 safety wire and after about 30 minutes got both lines cleared and then pumped a bunch of brake fluid through them before reinstalling the calipers thank good they work great now 

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When was the last time the brake fluid was changed?

 

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Safety wire is super sharp. Do you know the inside wasn't damaged in any way? Brakes are...important. 

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I was told the bike sat for at least five years.  Judging by the clutch reservoir I would guess and say the fluid was never changed 

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As for the original question, yes. On a RC36-2 that sat for years.

 

 

IMG_20200724_131323.thumb.jpg.e852a45e9b90428b3c8f060f698a69b8.jpg

 

 

@TheDutchy and I put silly pressure on to try and clear it to no avail.

 

IMG_20200725_103345.thumb.jpg.f04303b7b50c7976e87023d4a72ab41f.jpg

Mucked about with some wire, but abandonned that. As bmart wrote, that is sharp

 

 

 

 

So the clever next step was

 

IMG_20200729_113844.thumb.jpg.17052d42b9353e23909b78f343eb896e.jpg

 

 

The clutch slave was not much better

IMG_20200726_153855.thumb.jpg.9f22dcecfcd2e99ab5881a0139a38b76.jpg

 

 

 

IMG_20200731_164913.thumb.jpg.131b85ff62e6a233b091246414d3ba7d.jpg

 

 

 

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While you were at the rear brake line, you may as well have taken off the caliper, ejected the pistons, cleaned them up and reinstalled with new seals and rubber boots on the sliders (plus pads if necessary). Easy job and vastly improves the rear brake feel.

 

Er, Dutchy, is it my eyes or is that last photo of yours missing a copper washer between the banjo and caliper body?

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Good chance the SMC (secondary master cylinder) at the front wheel is also blocked. Need to go through the whole system to make sure everything is clear. Great opportunity to ditch the linked braking system all together. 

 

Justin

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Kinda cool thread... never have been in that spot, I have seen some gunky fluid but never crystalied... 

--- Echo-ing everbody on here... @n3n3... it would be wise to teardown your entire brake system for a cleanout/rebuild....

 

Cheerz and beerz all

 

 

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