'69 GTV brake junction? - Alfa Romeo Bulletin Board & Forums
Reply
 
LinkBack Thread Tools Display Modes
post #1 of 17 (permalink) Old 09-08-2012, 10:50 AM Thread Starter
Registered User
 
Join Date: Nov 2006
Location: NH, Usa
Posts: 199
'69 GTV brake junction?

Is this a standard brake 5 way junction box?



I'm having a helluva time threading a replacement brake line in there. Guessing the threads are stripped. It was very difficult to remove the stock line. Threads are the same on the replacement line. I think the threads are a M10x1.00, but I don't have a tap that size. Suggestions?
UngaWunga is offline  
Sponsored Links
Advertisement
 
post #2 of 17 (permalink) Old 09-08-2012, 11:40 AM
Registered User
 
flivesay's Avatar
 
Join Date: Dec 2006
Location: huntsville, alabama
Posts: 1,814
Undo the box from the firewall--gives you a little wiggle room. Mine was tough to get all lines started. i ended up putting the line from underneath on the box first while it was removed from the firewall, then eventually got the rest

Frank Livesay Huntsville, AL
Green Alfa - 68 Canadian 1750 Spider Veloce (driver)
White Alfa - 68 Euro 1750 GTV (needs a refresh)
flivesay is offline  
post #3 of 17 (permalink) Old 09-08-2012, 02:01 PM
Trained (ex)Professional

1953-2018 RIP

Platinum SubscriberAdministrator
 
papajam's Avatar
 
Join Date: Feb 2003
Location: New Jersey USA
Posts: 16,232
Yes, that is the correct 5-port junction for a Euro 105 with single circuit brakes (1 port each for the 4 brake lines and one port for the brake light switch). The brakeline fitting size is 3/8" x 24 and I think the light switch is a 1/8" x 27 NPT.
And to provide even more wiggle room, loosen the other lines before removing the block from the firewall.
The two visible brakelines have already been replaced I see.

Jim

Series 2 USA 1750 GTV (in Series 1 European clothing)
papajam is offline  
Sponsored Links
Advertisement
 
post #4 of 17 (permalink) Old 09-08-2012, 03:29 PM Thread Starter
Registered User
 
Join Date: Nov 2006
Location: NH, Usa
Posts: 199
Its not M10x1.00? looks very close to that.
UngaWunga is offline  
post #5 of 17 (permalink) Old 09-08-2012, 04:25 PM
USTA BE AN AD-MIN
Platinum SubscriberAdministrator
 
ossodiseppia's Avatar
 
Join Date: Oct 2003
Location: Broomfield, Colorado U.S.A
Posts: 11,037
Garage
I wouldn't want close when it comes to brakes. The threads are English units.

Brian __________________________________
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.




To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
ossodiseppia is offline  
post #6 of 17 (permalink) Old 09-08-2012, 04:36 PM
Trained (ex)Professional

1953-2018 RIP

Platinum SubscriberAdministrator
 
papajam's Avatar
 
Join Date: Feb 2003
Location: New Jersey USA
Posts: 16,232
Yes, at 9.525 x 1.06, a 3/8 x 24 would indeed look very close to an M10 x 1.0. Another clue that they're 3/8 24 are the flats on the nuts of the replacement brakelines in the pic that take a 3/8" wrench (the correct 3/8 24 nut, available here, takes an 11mm wrench).

Jim

Series 2 USA 1750 GTV (in Series 1 European clothing)
papajam is offline  
post #7 of 17 (permalink) Old 09-08-2012, 06:20 PM Thread Starter
Registered User
 
Join Date: Nov 2006
Location: NH, Usa
Posts: 199
Good to know. Thanks.
UngaWunga is offline  
post #8 of 17 (permalink) Old 09-11-2012, 06:56 PM Thread Starter
Registered User
 
Join Date: Nov 2006
Location: NH, Usa
Posts: 199
I cannot get the new line threaded into the junction. It just won't start. Time to go get a tap and clean up the junction threads.
UngaWunga is offline  
post #9 of 17 (permalink) Old 09-12-2012, 05:28 AM
Registered User
 
kengta's Avatar
 
Join Date: Apr 2004
Location: Toronto
Posts: 3,432
Quote:
Originally Posted by UngaWunga View Post
I cannot get the new line threaded into the junction. It just won't start. Time to go get a tap and clean up the junction threads.
Be careful, retapping a damaged thread may (will likely ) remove and cut away metal and thus weaken the thread holding power. Not something you want to do on a braking system, I suspect. Unfortunately I can't offer a good alternative other than to get an other block with good threads.

FWIW

Ken

Ken Geiger, Toronto
1965 GTA, RHD, Stradale
ex- 1965 GTA, RHD, Corsa, Trans/Am 66-72
1964 Sprint GT, B-Sedan in 70's
1970 Giulia Super (CDN Spec)
1976 1600 GTj (Italian Spec)
1966 Harley Sprint (Aermacchi) 250
2000 Catalina 320, Hull #765 Northern Dream
2001 BMW Z3 3.0i
kengta is offline  
post #10 of 17 (permalink) Old 09-12-2012, 06:18 AM Thread Starter
Registered User
 
Join Date: Nov 2006
Location: NH, Usa
Posts: 199
Yup, I know. This is the last resort before asking around for a used junction block.

Are there new blocks that have 5 ports with the same thread pitches out there? Didn't see anything on the Summit racing site, IAP or Centerline.

This, of course, would be the ideal time to switch to a dual circuit system. But I really don't want to do that work now. This is the last thing to do before I can drive the car.
UngaWunga is offline  
post #11 of 17 (permalink) Old 09-12-2012, 06:28 AM
USTA BE AN AD-MIN
Platinum SubscriberAdministrator
 
ossodiseppia's Avatar
 
Join Date: Oct 2003
Location: Broomfield, Colorado U.S.A
Posts: 11,037
Garage
Yes, running a tap in can really make a mess of things. There is something called a thread restore kit. I have a Craftsman brand one that is identical to the high priced SnapOn.

These can be found on Ebay. However, I do not know if the kit contains the correct size "tap".
Attached Images
 

Brian __________________________________
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.



To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.




To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.


To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
ossodiseppia is offline  
post #12 of 17 (permalink) Old 09-12-2012, 06:56 AM
Registered User
 
Join Date: Jul 2006
Location: Detroit Metro
Posts: 351
Your problem may be the nut.
Check the recent thread in the Giulietta forum.

Joe
jkbartusek is offline  
post #13 of 17 (permalink) Old 09-12-2012, 04:06 PM
Registered User
 
flivesay's Avatar
 
Join Date: Dec 2006
Location: huntsville, alabama
Posts: 1,814
Did you keep the original fittings? Try one of those and see if it fits. I just refit the old fittings to the new line. If it fits--probably not your threads

Frank Livesay Huntsville, AL
Green Alfa - 68 Canadian 1750 Spider Veloce (driver)
White Alfa - 68 Euro 1750 GTV (needs a refresh)
flivesay is offline  
post #14 of 17 (permalink) Old 09-12-2012, 08:13 PM Thread Starter
Registered User
 
Join Date: Nov 2006
Location: NH, Usa
Posts: 199
old one doesn't fit. Tried that.
UngaWunga is offline  
post #15 of 17 (permalink) Old 09-12-2012, 08:35 PM
PSk
Registered User
 
Join Date: May 2003
Location: Tauranga New Zealand
Posts: 11,558
Send a message via AIM to PSk Send a message via Yahoo to PSk
I'd purchase another second hand one from a wrecker. Surely won't cost much and we are talking brakes here, plus brake fluid leaks make a huge mess to the rest of your car .

Throw it in the bin IMO.
Pete

'71 1750 Series 2 GTV:
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
156 Series 1 v6 ... and remember it's all just opinions
To view links or images in signatures your post count must be 0 or greater. You currently have 0 posts.
PSk is online now  
Reply

Quick Reply
Message:
Options

Register Now



In order to be able to post messages on the Alfa Romeo Bulletin Board & Forums forums, you must first register.
Please enter your desired user name, your email address and other required details in the form below.

User Name:
Password
Please enter a password for your user account. Note that passwords are case-sensitive.

Password:


Confirm Password:
Email Address
Please enter a valid email address for yourself.

Email Address:
OR

Log-in










Thread Tools
Show Printable Version Show Printable Version
Email this Page Email this Page
Display Modes
Linear Mode Linear Mode



Posting Rules  
You may post new threads
You may post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off

 
For the best viewing experience please update your browser to Google Chrome