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20th October 2020, 11:23 | #51 |
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That’s as good as access gets I’m afraid!
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20th October 2020, 11:32 | #52 |
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20th October 2020, 11:33 | #53 |
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I use a syringe with a pipe attached to fill the pot up.
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20th October 2020, 11:58 | #54 |
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The plan
Ok, just to make sure I haven't missed anything, this is the plan.
1) Get the cap off the master cylinder (one way or the other!). 2) Suck out as much old fluid as possible with a syringe. 3) Fit the cap from the Sealey VS820 or the Gunson Eezibleed to the MC. 4) Fill the Sealey or Gunson with new DOT4 fluid. 5) Connect my 'contraption' to the gold quick release connector. 6) Pressurise the Sealey VS820 or Gunson Eezibleed (25psi if the Sealey). 7) Open the nipple on my contraption and allow 1 litre of brake fluid out. 8) Close nipple. 9) Unscrew the Sealey/Gunson cap and refit the MC's own cap. 10) Disconnect my contraption from the gold quick release connector. QUESTIONS A) Is step 2 necessary? B) If it is, how much fluid does the MC itself hold? C) Do I put a hole in the rubber condom or not? D) Why can't I ditch the rubber condom altogether? E) What's the best new fluid to use? (I've already got some of this) TIA Last edited by Blink; 20th October 2020 at 12:05.. |
20th October 2020, 13:11 | #55 |
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The rubber condom allows for the level to rise and fall in the reservoir whilst keeping air out of the system - the idea being clutch fluid is hygroscopic and will pick up moisture if exposed to atmosphere over time.
If you ditch it and fill the reservoir up then the excess fluid will leak out of the bleed hole in the cap when you press the pedal down the first few times. When I fit new clutches I always replace the condom and don't cut any holes in it, but the choice is yours. |
20th October 2020, 13:19 | #56 | |
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Quote:
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20th October 2020, 13:28 | #57 | |
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Questions remaining from post 54 after Mike answered C & D.
QUESTIONS A) Is step 2 necessary? B) If it is, how much fluid does the MC itself hold? E) What's the best new fluid to use? (I've already got some of this) Post 54: Quote:
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20th October 2020, 14:27 | #58 | |
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Quote:
I appreciate the fluid is hygroscopic, but is it really a problem for the clutch system? The moisture absorbed can certainly be a problem in the braking system, where the fluid can become hot and boil, yet the braking MC is vented to air. The whole point of the condom in the clutch MC was one of making it a quick change item, with no need to bleed, which would not leak fluid out when on the parts shelf. Once the system is tampered with, with to flush fluid, the condom serves little purpose, other than to serve as a seal around the lip of the lid.
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20th October 2020, 21:31 | #59 |
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The reservoir capacity is pretty limited with or without the condom Harry, but I agree in the great scheme of things it doesn't make much difference whether you replace it or not. As I said the choice is yours.
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21st October 2020, 11:58 | #60 |
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Rain has stopped play again.
PS. I still have questions A, B, E in post 57. Last edited by Blink; 21st October 2020 at 12:01.. |
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