HELP!!!Brake line won't go into caliper completely!!

Justinandwhat · 05-13-2016, 11:41 PM

I did the most stupid thing to take calipers completely off the rotors to paint it.... Now I tried to put them back on, but the brake hose won't screw all the way in... Is it because of the piston is compressed? Like there's no room for the hose? Or what's wrong?

and how do I fix it??? I regret so much taking calipers completely off.... So much

HFW003 · 05-14-2016, 01:13 AM

The screw in fitting, if that is what you are talking about, doesn't need to screw all the way in.

Whatever you do, do not over tighten them as they will snap.

Justinandwhat · 05-14-2016, 02:01 AM

Quote:

Originally Posted by HFW003

The screw in fitting, if that is what you are talking about, doesn't need to screw all the way in.

Whatever you do, do not over tighten them as they will snap.

I thought it's because I compressed the piston all the way back, whichs causing the screw not being able to tighten more?

Billfitz · 05-14-2016, 08:34 AM

It's a tapered pipe thread, it's not supposed to go 'all the way in'. It's supposed to go in as far as necessary so that it doesn't leak.

Justinandwhat · 05-14-2016, 11:19 AM

Quote:

Originally Posted by Billfitz

It's a tapered pipe thread, it's not supposed to go 'all the way in'. It's supposed to go in as far as necessary so that it doesn't leak.

But it's definitely not as far as when I loosened it to take it out

//M · 05-14-2016, 11:32 AM

Open the bleed screw then, your going to need to re bleed them anyway. I really hope you didn't let all the fluid leak out of the line either, you'll have a mighty bad time rebleeding them without ista if you let a lot of fluid out.

Justinandwhat · 05-14-2016, 11:46 AM

Quote:

Originally Posted by tifosielia

Open the bleed screw then, your going to need to re bleed them anyway. I really hope you didn't let all the fluid leak out of the line either, you'll have a mighty bad time rebleeding them without ista if you let a lot of fluid out.

I did let it just leak..... What's gonna happen?

//M · 05-14-2016, 12:02 PM

Quick question you did know you have to bleed them right?

There may be to much air in the brake line to use the brake pedal two person method.

You may need to use the DSC pump method which requires a highend scan tool (at least a $1000) or ISTA.

Justinandwhat · 05-14-2016, 12:05 PM

Quote:

Originally Posted by tifosielia

Quick question you did know you have to bleed them right?

There may be to much air in the brake line to use the brake pedal two person method.

You may need to use the DSC pump method which requires a highend scan tool (at least a $1000) or ISTA.

Yeah I know. I got a power bleeder kit so think I'm fine. I'm more concerned about the screw lol. I did lossen the bleeder screw but that's how far it will go

Justinandwhat · 05-14-2016, 12:08 PM

And yeah I read something about actuating D.SC. But the manual recommand DSC bleed only when dealing with the hydraulic unit replacement of repair so I'm gonna try the normal method then if it doesn't feel the same, I will get ISTA/D to actuate DSCZ mode

89alpinem3 · 05-14-2016, 01:11 PM

If it dosent leak from the fitting it's fine, just be sure you didn't cross thread it

Justinandwhat · 05-14-2016, 01:16 PM

Quote:

Originally Posted by 89alpinem3

If it dosent leak from the fitting it's fine, just be sure you didn't cross thread it

I wish I had pics from others so I feel more secured

Piggieback · 05-14-2016, 04:40 PM

Put the calipers back on the rotors, you dont have to tighten them down, start the car and depress the brake pedal several times, in doing that, you will see if there is any bleeding on the nipple.

Justinandwhat · 05-14-2016, 05:09 PM

Quote:

Originally Posted by Piggieback

Put the calipers back on the rotors, you dont have to tighten them down, start the car and depress the brake pedal several times, in doing that, you will see if there is any bleeding on the nipple.

If not, its in good shape? I'm just worrying for like future use lol I mean it's brake and I'm pretty new at DIY stuff

HFW003 · 05-14-2016, 05:17 PM

Quote:

Originally Posted by Justinandwhat

If not, its in good shape? I'm just worrying for like future use lol I mean it's brake and I'm pretty new at DIY stuff

If there is no leak you will be fine! Just reassemble and see what happens, you'll know pretty quickly if there is an issue.

You certainly picked something "easy" and non consequential to fuck about with if you don't know what you are doing.

Justinandwhat · 05-14-2016, 09:30 PM

Quote:

Originally Posted by HFW003

If there is no leak you will be fine! Just reassemble and see what happens, you'll know pretty quickly if there is an issue.

You certainly picked something "easy" and non consequential to fuck about with if you don't know what you are doing.

I should have just painted with the caliper on the rotor...

ORIGIN M. · 05-14-2016, 10:06 PM

No laughing matter. Should always start threads by hand. Possible Serious Situation.

If you cross threaded it... Buy Metric Tap and Die Set. Harbor Freight Tools.

Justinandwhat · 05-14-2016, 10:26 PM

Quote:

Originally Posted by red-sauerkraut

No laughing matter. Should always start threads by hand. Possible Serious Situation.

If you cross threaded it... Buy Metric Tap and Die Set. Harbor Freight Tools.

I don't think I did. Just wanna make sure again, if there's no leak, it's fine right?

ORIGIN M. · 05-14-2016, 10:31 PM

Quote:

Originally Posted by Justinandwhat

Quote:

Originally Posted by red-sauerkraut

No laughing matter. Should always start threads by hand. Possible Serious Situation.

If you cross threaded it... Buy Metric Tap and Die Set. Harbor Freight Tools.

I don't think I did. Just wanna make sure again, if there's no leak, it's fine right?

No. This is the most important thing on your car.

Make sure the thread goes as deep as on the other calipers.

If in doubt, take it out. If you started tightening it with a wrench, that is where you went wrong.

Piggieback · 05-14-2016, 11:41 PM

Quote:

Originally Posted by Justinandwhat

If not, its in good shape? I'm just worrying for like future use lol I mean it's brake and I'm pretty new at DIY stuff

I put the M performance brakes on mine, and if I remember correctly, that thread looks right. Do what I told you, test it under pressure, if there is no fluid coming out, you are fine.

Piggieback · 05-14-2016, 11:43 PM

Also, let me get this straight, you didn't actually detach the brake lines?, you just removed the calipers?. If you didnt touch the brake lines, dont worry about them. Also, I hope you know that you have to replace the caliper bolts, since they are stretch bolts, once they are torqued down, they stretch and conform, replacement is needed once removed.

Justinandwhat · 05-15-2016, 01:49 AM

Quote:

Originally Posted by Piggieback

Also, let me get this straight, you didn't actually detach the brake lines?, you just removed the calipers?. If you didnt touch the brake lines, dont worry about them. Also, I hope you know that you have to replace the caliper bolts, since they are stretch bolts, once they are torqued down, they stretch and conform, replacement is needed once removed.

I actually detached the rear right one... What's the difference now???

and NO I didn't know I have to replace the bolts.. Thought there were fine??

05-13-2016, 11:41 PM	#1
Justinandwhat First Lieutenant 126 Rep 372 Posts Drives: 2013 335i xDrive Join Date: Apr 2016 Location: Indianapolis iTrader: (0)	HELP!!!Brake line won't go into caliper completely!! I did the most stupid thing to take calipers completely off the rotors to paint it.... Now I tried to put them back on, but the brake hose won't screw all the way in... Is it because of the piston is compressed? Like there's no room for the hose? Or what's wrong? and how do I fix it??? I regret so much taking calipers completely off.... So much Attached Images
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05-14-2016, 01:13 AM	#2
HFW003 Brigadier General 5697 Rep 3,225 Posts Drives: 2024 M340i xdrive Join Date: Apr 2013 Location: Newcastle, Australia iTrader: (0)	The screw in fitting, if that is what you are talking about, doesn't need to screw all the way in. Whatever you do, do not over tighten them as they will snap.
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05-14-2016, 08:34 AM	#4
Billfitz Lieutenant General 8243 Rep 16,082 Posts Drives: '15 328iX GT Join Date: Jan 2015 Location: New Hampshire iTrader: (0)	It's a tapered pipe thread, it's not supposed to go 'all the way in'. It's supposed to go in as far as necessary so that it doesn't leak.
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05-14-2016, 11:32 AM	#6
//M Lieutenant 243 Rep 497 Posts Drives: M2 Comp Join Date: Aug 2014 Location: Northeast iTrader: (0)	Open the bleed screw then, your going to need to re bleed them anyway. I really hope you didn't let all the fluid leak out of the line either, you'll have a mighty bad time rebleeding them without ista if you let a lot of fluid out.
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05-14-2016, 12:02 PM	#8
//M Lieutenant 243 Rep 497 Posts Drives: M2 Comp Join Date: Aug 2014 Location: Northeast iTrader: (0)	Quick question you did know you have to bleed them right? There may be to much air in the brake line to use the brake pedal two person method. You may need to use the DSC pump method which requires a highend scan tool (at least a $1000) or ISTA.
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05-14-2016, 12:08 PM	#10
Justinandwhat First Lieutenant 126 Rep 372 Posts Drives: 2013 335i xDrive Join Date: Apr 2016 Location: Indianapolis iTrader: (0)	And yeah I read something about actuating D.SC. But the manual recommand DSC bleed only when dealing with the hydraulic unit replacement of repair so I'm gonna try the normal method then if it doesn't feel the same, I will get ISTA/D to actuate DSCZ mode
	Appreciate 0 Quote

05-14-2016, 01:11 PM	#11
89alpinem3 Private First Class 53 Rep 168 Posts Drives: 16'320i,89'M3,08'X3,12'128i Join Date: Jan 2012 Location: Tucson,AZ iTrader: (0)	If it dosent leak from the fitting it's fine, just be sure you didn't cross thread it
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05-14-2016, 04:40 PM	#13
Piggieback Private First Class 41 Rep 141 Posts Drives: 2014 Cayman S, 2015 A3 Join Date: Feb 2015 Location: chicago iTrader: (0)	Put the calipers back on the rotors, you dont have to tighten them down, start the car and depress the brake pedal several times, in doing that, you will see if there is any bleeding on the nipple.
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05-14-2016, 10:06 PM	#17
ORIGIN M. Banned 3161 Rep 9,134 Posts Drives: ///M Join Date: Oct 2007 Location: Northern Hemisphere iTrader: (0)	No laughing matter. Should always start threads by hand. Possible Serious Situation. If you cross threaded it... Buy Metric Tap and Die Set. Harbor Freight Tools.
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05-14-2016, 11:43 PM	#21
Piggieback Private First Class 41 Rep 141 Posts Drives: 2014 Cayman S, 2015 A3 Join Date: Feb 2015 Location: chicago iTrader: (0)	Also, let me get this straight, you didn't actually detach the brake lines?, you just removed the calipers?. If you didnt touch the brake lines, dont worry about them. Also, I hope you know that you have to replace the caliper bolts, since they are stretch bolts, once they are torqued down, they stretch and conform, replacement is needed once removed.
	Appreciate 0 Quote