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#1 |
![]() Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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I'm just about to bleed my brakes (regular fluid change) and would like to install my DRM bias spring into the master cylinder.
Before I tear everything down - will I have to bench bleed the master cylinder afterwards or will a normal 4 corner bleed get all the air out? I don't have a bench bleed kit on hand and would make my Z inoperable for an unnecessary time...
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ZR-1 #638/1991 |
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#2 |
![]() Join Date: Jan 2006
Location: Niceville
Posts: 997
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Bench bleed is required to ensure bias spring stays centered & keeps brake light off. Easy to do in a vice on an 'ear' of the MC if you can recirculate from output ports back into reservoir.
Ted |
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#3 |
![]() Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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Thanks Ted. So, too much effort for me today. I'll put it back to my shelf and give another next year when next fluid change is due.
P.s. meanwhile I tried to remove the master cylinder but the front brake line nut is stuck. I drenched it in rust solvent. If it opens tomorrow I'll remove the MC and swap the spring. If not... No DRM spring for me.
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ZR-1 #638/1991 Last edited by Matt B; 05-31-2023 at 03:14 PM. |
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#4 |
![]() Join Date: Jul 2020
Location: Nashville TN
Posts: 314
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Brake clean and dry the fitting before disassembly. Don?t risk contaminating the brake fluid with the penetrating oil you put on the fitting.
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#5 |
![]() Join Date: Jan 2021
Location: Beautiful Bavaria
Posts: 523
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It didn't break loose. I skipped the swap and will retry next time.
Not sure if that spring is worth the effort...
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ZR-1 #638/1991 |
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