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To Bleed Or Not To Bleed?

Dan93
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Dan93 Contributor

Dan93

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Hi guys just a quick question as I've done a search.
Do I need to bleed the front passenger side brake?
This was my first time having a go at changing the rotors and pads and I undid the bolts that held the caliper in place (starting from bottom to top). I realised that when I undid the last top one slightly some fluid came out so I redid it. Now I'm wondering do I need to bleed just that side? Thanks, I'm new to brakes so be gentle.

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GTSBoy Grand Master

GTSBoy

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There shouldn't be any fluid coming out when you're removing caliper bolts. You had best show us a photo of what you mean.....because if you were splitting the caliper accidentally, you might be in some trouble.

And here's a pro tip. ALWAYS bleed brakes. Every opportunity.

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Dan93 Contributor

Dan93

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Yes the caliper split slightly, but I still had the top one done up. It was only till I loosened it slightly that fluid came out. It's all together and well, I just need to know if I need to bleed that brake specifically.
I will bleed them all when I get the chance, but would I be able to drive it as it sits now?

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GTRPSI Mentor

GTRPSI

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Off the record, your not supposed to split the calipers, the bolts are torque to yield items and should be replaced, as should the oring that seals the 2 halves.

Having said that, i know heaps of people who have split them and reused the old bolts.....but with a new oring.

Yep, you have to bleed now, no ifs or buts about it.....dont even think about driving it, you don't know how much air got in.

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Dan93 Contributor

Dan93

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I know I wasn't supposed to split it, but I didn't know those bolts held the caliper together.
So now I've got to get the caliper pulled apart to replace the o ring?
OK bleeding it isn't such a problem now considering I don't know the problems I have made, by slightly loosening the caliper.

Edit: I'd also like to add that it is not leaking at all since I did up those bolts.

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GTRPSI Mentor

GTRPSI

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Edit: I'd also like to add that it is not leaking at all since I did up those bolts.

So you tested it while hot under full pressure braking with the master full of vacuum while the caliper flexes under high speed load?

You 100% sure it wont leak? :)

Hence why the oring should always be replaced......

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