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Caliper Brake Line Inlet Stripped


Chad989of2000
blows both ways and is skilled in magic with any mention of diarrhea
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Galant VR-4 org Post #: 1240962 posted 12/14/17 04:54 PM     Remind Me!  Send Private Message   Edit Post      
Hey guys, really bummed here. I'm installing a barely used Wilwood brake kit and the passenger side brake line will not tighten. On top of that the fitting won't back out now. It looks like the previous owner stripped it out.

Any advice on how to back the fitting out? Is the caliper trash now?




Chad A.
-'91 GVR-4 989/2000
-'92 GVR-4 141/1000
-'92 Mazda Miata
-'15 Forester XT Touring
-'14 Fiesta ST


Posts: 1726 | From: Livermore, CA | Member Since: 01/13/05 | IP: (67.160.220.10) | Report this post to a Moderator

Chad989of2000
blows both ways and is skilled in magic with any mention of diarrhea
989/2000
141/1000


Galant VR-4 org Post #: 1240964 posted 12/14/17 05:05 PM     Remind Me!  Send Private Message   Edit Post      
Considering clamping it and JB Welding it since there isnt much force exerted on it.



Chad A.
-'91 GVR-4 989/2000
-'92 GVR-4 141/1000
-'92 Mazda Miata
-'15 Forester XT Touring
-'14 Fiesta ST


Posts: 1726 | From: Livermore, CA | Member Since: 01/13/05 | IP: (67.160.220.10) | Report this post to a Moderator

Chad989of2000
blows both ways and is skilled in magic with any mention of diarrhea
989/2000
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Galant VR-4 org Post #: 1240965 posted 12/14/17 05:19 PM     Remind Me!  Send Private Message   Edit Post      
Used my serious level Channellocks and yanked while twisting counter-clockwise and the fitting finally bit. Unscrewed it by hand and got it off.

New game plan. Rubber gasket and Teflon tape and hopefully she can thread in.





Chad A.
-'91 GVR-4 989/2000
-'92 GVR-4 141/1000
-'92 Mazda Miata
-'15 Forester XT Touring
-'14 Fiesta ST


Posts: 1726 | From: Livermore, CA | Member Since: 01/13/05 | IP: (67.160.220.10) | Report this post to a Moderator

Chad989of2000
blows both ways and is skilled in magic with any mention of diarrhea
989/2000
141/1000


Galant VR-4 org Post #: 1240968 posted 12/14/17 08:08 PM     Remind Me!  Send Private Message   Edit Post      
Still wouldn't thread. JB Weld it is.



Chad A.
-'91 GVR-4 989/2000
-'92 GVR-4 141/1000
-'92 Mazda Miata
-'15 Forester XT Touring
-'14 Fiesta ST


Posts: 1726 | From: Livermore, CA | Member Since: 01/13/05 | IP: (67.160.220.10) | Report this post to a Moderator

toybreaker Galant VR4.org Moderator
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Galant VR-4 org Post #: 1240969 posted 12/14/17 09:29 PM     Remind Me!  Send Private Message   Edit Post      
I would strongly recommend you do NOT attempt to fix that with jb weld!

Do you have a better pic of the damage to the caliper threads?

Posts: 3466 | From: Never Summer Ranch, Colorado | Member Since: 04/30/06 | IP: (172.58.56.127) | Report this post to a Moderator

EHmotorsports
Capt Fabbin Stabbin
1865/2000


Galant VR-4 org Post #: 1240970 posted 12/14/17 09:51 PM     Remind Me!  Send Private Message   Edit Post      
You would be better off using a threadsert. Not cheap but worth the cost.



click

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Chad989of2000
blows both ways and is skilled in magic with any mention of diarrhea
989/2000
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Galant VR-4 org Post #: 1240974 posted 12/15/17 10:52 AM     Remind Me!  Send Private Message   Edit Post      
Unfortunately I did not snap a pic. It's pretty smooth in there, almost no threading.



Chad A.
-'91 GVR-4 989/2000
-'92 GVR-4 141/1000
-'92 Mazda Miata
-'15 Forester XT Touring
-'14 Fiesta ST


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Chad989of2000
blows both ways and is skilled in magic with any mention of diarrhea
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Galant VR-4 org Post #: 1240975 posted 12/15/17 10:56 AM     Remind Me!  Send Private Message   Edit Post      
That Thread Sert looks like a great product, but it sure is a little pricey. At this point, I will probably just scoop up another caliper.



Chad A.
-'91 GVR-4 989/2000
-'92 GVR-4 141/1000
-'92 Mazda Miata
-'15 Forester XT Touring
-'14 Fiesta ST


Posts: 1726 | From: Livermore, CA | Member Since: 01/13/05 | IP: (17.224.23.187) | Report this post to a Moderator

EHmotorsports
Capt Fabbin Stabbin
1865/2000


Galant VR-4 org Post #: 1240977 posted 12/15/17 11:51 AM     Remind Me!  Send Private Message   Edit Post      
Thatís a much better idea. Brakes are the most important component in your car. Donít cheap out on them.



click

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Chad989of2000
blows both ways and is skilled in magic with any mention of diarrhea
989/2000
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Galant VR-4 org Post #: 1240978 posted 12/15/17 01:32 PM     Remind Me!  Send Private Message   Edit Post      
I totally agree on that one. I don't feel so bad since I got a great deal on them.



Chad A.
-'91 GVR-4 989/2000
-'92 GVR-4 141/1000
-'92 Mazda Miata
-'15 Forester XT Touring
-'14 Fiesta ST


Posts: 1726 | From: Livermore, CA | Member Since: 01/13/05 | IP: (17.224.23.187) | Report this post to a Moderator

Chad989of2000
blows both ways and is skilled in magic with any mention of diarrhea
989/2000
141/1000


Galant VR-4 org Post #: 1240979 posted 12/15/17 01:38 PM     Remind Me!  Send Private Message   Edit Post      
Anyone else ever experience issues with these calipers? They certainly don't feel as solid (in build) as the stockers. I inserted the brake line in the other caliper with great caution and it appears that this one was never used before. I'm thinking the deal was good because the PO knew they stripped one caliper out.



Chad A.
-'91 GVR-4 989/2000
-'92 GVR-4 141/1000
-'92 Mazda Miata
-'15 Forester XT Touring
-'14 Fiesta ST


Posts: 1726 | From: Livermore, CA | Member Since: 01/13/05 | IP: (17.224.23.187) | Report this post to a Moderator

FlyingEagle
Doesn't Match Anything


Galant VR-4 org Post #: 1240984 posted 12/15/17 06:39 PM     Remind Me!  Send Private Message   Edit Post      
You have to be careful with the fitting on the brake lines you are using. If the Wilwoods are anything like my old setup (currently in use but they are an old style), then the fitting is a pipe style fitting whereby the threads are tapered and get tighter as they thread in ... if you aren't using a brake line with the perfectly matched threads ... it will be disaster. Essentially we are all wondering if the brake caliper uses a tapered seat contact or if the threads are what is doing the sealing.

For example: 1/8-27 NPT <- that is what my calipers use.

As toybreaker says, please don't use JB weld on a brake system fitting.

Once we know more about what you have, it would be easier to give your advice.

The best advice is to buy the half a body you need and replace all the o-rings and fittings in the caliper as it gets torn down and rebuilt.
Or someone with proper knowledge and practice, could in theory weld the hole shut, and then it can be drilled and tapped by a competent person.

If none of this applies to your scenario, disregard but making it aware to others, as brakes cannot be messed with.



C53A 1 of the ~1500


Edited by FlyingEagle (12/15/17 06:41 PM)

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89Mirageman
Senior Member


Galant VR-4 org Post #: 1240987 posted 12/15/17 10:04 PM     Remind Me!  Send Private Message   Edit Post      
Silly question but couldn't you thread the fitting in and have someone tig it professionally? I mean its already scrap metal so if they mess it up what would it hurt? Am I right in thinking there is an adapter that screws in, then the brake like screws into that?


Edit, nevermind. Forgot caliper was aluminum and fitting was metal.



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Edited by 89Mirageman (12/15/17 10:05 PM)

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Chad989of2000
blows both ways and is skilled in magic with any mention of diarrhea
989/2000
141/1000


Galant VR-4 org Post #: 1240988 posted 12/15/17 11:17 PM     Remind Me!  Send Private Message   Edit Post      
I thought about that too and also remembered after a bit that the caliper is aluminum. I'm using Technafit lines, and the stripped out caliper was not having it.

Will there ever be a good connection between a stainless steel line and aluminum caliper?


Edited by Chad989of2000 (12/15/17 11:38 PM)

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FlyingEagle
Doesn't Match Anything


Galant VR-4 org Post #: 1241003 posted 12/17/17 09:23 AM     Remind Me!  Send Private Message   Edit Post      
Yes, but only with good proper threads on both parts.

I hear what you are saying too Chris, but unless this is a last ditch effort to get the car one way home, I would never suggest welding parts that way on a hydraulic system.

My lines from Technafit were custom made to my spec, and they fit flawlessly into the threaded portions and lock up at the appropriate depth due to design. That is how it has to be.

Also, no rubber washer style parts can be used if actually attempting to seal fluid from coming out. The threads on a pipe style threaded fitting or the tapered seat (watch the angles there too) do all the sealing of fluid/pressure.

An O-ring/washer has no place on these two styles of systems.



C53A 1 of the ~1500

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iceman69510
Turn Right Racing
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Galant VR-4 org Post #: 1241020 posted 12/19/17 07:27 AM     Remind Me!  Send Private Message   Edit Post      
On other alternative would be to tap the caliper for a larger size pipe thread fitting, then use what is called a bushing to adapt it back down to the original size.

I have never had Wilwood calipers, but I believe the other guys are correct and they use NPT pipe thread size connections, which seal on the threads as Tim the Flying Eagle said.



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Chad989of2000
blows both ways and is skilled in magic with any mention of diarrhea
989/2000
141/1000


Galant VR-4 org Post #: 1241025 posted 12/19/17 02:07 PM     Remind Me!  Send Private Message   Edit Post      
They do indeed use NPT thread connections. I'm not sure how it got stripped out. My guess is the guy who sold them to me just over-tightened the hell out of em and pushed the brake line connector through the point of when it should have stopped. Oh well, I got the pair for next to nothing. I ended up buying another matching caliper and will cautiously install that one. Thanks for all the info guys.



Chad A.
-'91 GVR-4 989/2000
-'92 GVR-4 141/1000
-'92 Mazda Miata
-'15 Forester XT Touring
-'14 Fiesta ST


Posts: 1726 | From: Livermore, CA | Member Since: 01/13/05 | IP: (17.224.23.187) | Report this post to a Moderator

FlyingEagle
Doesn't Match Anything


Galant VR-4 org Post #: 1241126 posted 12/26/17 10:57 AM     Remind Me!  Send Private Message   Edit Post   
Quoting iceman69510:

On other alternative would be to tap the caliper for a larger size pipe thread fitting, then use what is called a bushing to adapt it back down to the original size.

I have never had Wilwood calipers, but I believe the other guys are correct and they use NPT pipe thread size connections, which seal on the threads as Tim the Flying Eagle said.




That adapter idea just blew my mind, because it is so simple and should work. Well done Iceman!



C53A 1 of the ~1500

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