Author |
Message |
75-911S Samba Member
Joined: May 22, 2010 Posts: 21 Location: Hartsville, SC
|
Posted: Mon May 19, 2025 5:10 am Post subject: Can't get brake hose loose. |
|
|
Any tricks to disconnecting the right rear brake hose at the cross-transmission and rear wheel cylinder connections? Mine are stuck solid. |
|
Back to top |
|
 |
scrivyscriv Samba Electrician

Joined: October 04, 2011 Posts: 3318 Location: Memphis
|
Posted: Mon May 19, 2025 5:19 am Post subject: Re: Can't get brake hose loose. |
|
|
Flare nut wrench and a propane torch.
If the lines are broken, a socket on an impact driver will get the nuts off. _________________ Robert in Memphis
Dünkelgrügen 1967 Java Green bug thread
Engine rebuild thread
If you're ever in the Memphis area, you are welcome to stop by for advice and help. |
|
Back to top |
|
 |
VW_Jimbo  Samba Member

Joined: May 22, 2016 Posts: 10966 Location: Huntington Beach, CA
|
Posted: Mon May 19, 2025 8:21 am Post subject: Re: Can't get brake hose loose. |
|
|
Flare end wrench on both the hose and line. First try tightening the connection. Then try breaking it free. If you can get the wrenches lined up to “squeeze” them together, it makes it way easier! _________________ Jimbo
There is never enough time to do it right the first time, but all the time necessary the second time!
TDCTDI wrote: |
Basically, a whole bunch of fuckery to achieve a look. |
67rustavenger wrote: |
GFY's Xevin and VW_Jimbo!  |
|
|
Back to top |
|
 |
Eric&Barb Samba Member

Joined: September 19, 2004 Posts: 25784 Location: Olympia Wash Rinse & Repeat
|
Posted: Mon May 19, 2025 10:53 am Post subject: Re: Can't get brake hose loose. |
|
|
VW_Jimbo wrote: |
First try tightening the connection. Then try breaking it free. |
Definitely! Tightening ever so slightly will crush the rust from a plating that takes up too much room in the threads that they are a press fit, into a rust dust that allows threads to be undone. When you get the nut moving, do work it back and forth often. If you just go all the way loosening it up the rust in the threads can gall up and weld together the threads....
Check your brake line that runs on the left side of the pan hump, where it sits in damp from your shoes. If that looks really nasty rusty it is a good time to upgrade to rust proof brake lines. Up to about 1,500 PSI will happen in a brake system, so a pitted up brake line can blow all too easily.
Either which way, do apply a little anti-seize to the brake line nuts and work each nut back from the end of the line to apply more anti-seize on the brake line so it ends up between the nut and brake line. Just wipe off the tip of the brake line if need be, where it seals up to keep anti-seize out of the hydraulics. That will keep out water and corrosion from those areas, making it so much easier in the future to take back apart. _________________ In Stereo, Where Available! |
|
Back to top |
|
 |
Dan22 Samba Member

Joined: August 30, 2019 Posts: 635 Location: Battle Ground, WA
|
Posted: Mon May 19, 2025 11:09 am Post subject: Re: Can't get brake hose loose. |
|
|
If the lines are really stuck, they are probably very old, and probably should all be replaced for safety.
If you decide to replace, then use whatever hack method like big vice grips to get the fittings apart.
Then smile after you get the new lines and hoses in knowing those can last another 50 years. The anti seize is a good idea too.
Just some more general advice for you....  _________________ 1-0900722 die langsame grüne Schildkröte
https://www.thesamba.com/vw/forum/viewtopic.php?t=765074 |
|
Back to top |
|
 |
aquifer Samba Member
Joined: August 30, 2021 Posts: 265 Location: Nebraska
|
Posted: Mon May 19, 2025 1:15 pm Post subject: Re: Can't get brake hose loose. |
|
|
Kroil. The correct answer is Kroil. The fitting will magically loosen itself while you stand there dumbfounded with the wrench in your hand. I'm only slightly exaggerating. Haha
 _________________ Parts needed:
Front & rear NOS or used OEM door panels for a '67 in the original Gazelle color (dark tan/light brown). |
|
Back to top |
|
 |
VW_Jimbo  Samba Member

Joined: May 22, 2016 Posts: 10966 Location: Huntington Beach, CA
|
Posted: Mon May 19, 2025 1:20 pm Post subject: Re: Can't get brake hose loose. |
|
|
aquifer wrote: |
Kroil. The correct answer is Kroil. The fitting will magically loosen itself while you stand there dumbfounded with the wrench in your hand. I'm only slightly exaggerating. Haha
 |
Never used it. I use GM’s Heat Valve Lubricant.
Amazon has it! _________________ Jimbo
There is never enough time to do it right the first time, but all the time necessary the second time!
TDCTDI wrote: |
Basically, a whole bunch of fuckery to achieve a look. |
67rustavenger wrote: |
GFY's Xevin and VW_Jimbo!  |
|
|
Back to top |
|
 |
gt1953 Samba Member

Joined: May 08, 2002 Posts: 13946 Location: White Mountains Arizona
|
Posted: Mon May 19, 2025 6:20 pm Post subject: Re: Can't get brake hose loose. |
|
|
Yep that rust tight is some real deal stuff. It is so good you will never find it on the store shelves. Rusty connections are not fun. Follow some of the methods posted. _________________ Volkswagen: We tune what we drive.
Numbers Matching VW's are getting harder to find. Source out the most Stock vehicle and keep that way. You will be glad you did.
72 type 1
72 Squareback
({59 Euro bug, 62, 63, 67, 68, 69, 73 type ones 68 & 69 type two, 68 Ghia all sold}) |
|
Back to top |
|
 |
zerotofifty Samba Member
Joined: December 27, 2003 Posts: 3505
|
Posted: Tue May 20, 2025 7:58 am Post subject: Re: Can't get brake hose loose. |
|
|
Since Brake fluid exposed to air become corrosive be sure that upon reassembly that the threads are dry of fluid AND use a bit of brake system compatible brake grease on the threads. Only use brake system compatible grease, NEVER use regular greases, as if there is contamination of this grease into the brake system, even in small amounts, the rubber brake bits in the cylinders may degrade, with loss of braking. I also use the brake grease ont he threads on the cylinders, the bleeder screws, and coat the cylinder bores with it too. This will go a long ways to prevent corrosion, make bleeder screws easy to open, prevent rusting of the non wetted sections of the bores,
VW in the service manuals calls this Brake Paste in some editions. _________________ Sorry About That Chief.
Give Peace a Chance.
Words to live by. |
|
Back to top |
|
 |
my59 Samba Member

Joined: August 13, 2003 Posts: 3950 Location: connecting the dots
|
Posted: Wed May 21, 2025 5:26 am Post subject: Re: Can't get brake hose loose. |
|
|
A few days before I plan on doing work I spray the rusted connections with pb blaster, and repeat every day. Usually works well, tighten loosen, tighten loosen and connections come loose. If they don't, then I break out the Kroil, and let the troublesome joint soak as I keep doing other parts of the task, and come back to the Kroil spots. _________________ my59: Well son, my grandfather died before I got to drive it, so does that answer your question?
our79: sunroof bus w/camper interior and 2.0 FI
Other:'12 Jetta, '77 Benz 300D, and a 74 MG Midget. |
|
Back to top |
|
 |
75-911S Samba Member
Joined: May 22, 2010 Posts: 21 Location: Hartsville, SC
|
Posted: Thu May 22, 2025 5:50 am Post subject: Re: Can't get brake hose loose. |
|
|
Couldn't fit my impact driver in the space. Got some Kroil coming today. I rember using it ages ago. Will try the tighten-loose method after Kroiling (is that a word?) |
|
Back to top |
|
 |
aquifer Samba Member
Joined: August 30, 2021 Posts: 265 Location: Nebraska
|
Posted: Thu May 22, 2025 7:49 am Post subject: Re: Can't get brake hose loose. |
|
|
Try Kroil first as I suggested above, but here are some other suggestions:
Will the other two connections come loose from the splitter block? You can cut off the offending line, disconnect the other two lines, and remove the splitter block so you can put it in the vise and use an impact.
You can then cut the line again near the wheel cylinder, remove the drum, and remove the wheel cylinder with the short line still attached. Having access on the bench and/or vise will give you more options.
Worst case scenario, you'd replace the block and the wheel cylinder, and install a new cross over line to the wheel.
As someone else mentioned, it might be time to just replace all the brake lines & hoses. In that case, just cut whatever you have to. _________________ Parts needed:
Front & rear NOS or used OEM door panels for a '67 in the original Gazelle color (dark tan/light brown). |
|
Back to top |
|
 |
|