The union is weeping one side of my brembos. One side the union that the hose connects to doesn't wind the whole way in, and there is some thread showing but doesn't leak. The other has winded in the whole way in to the shoulder of the union but is weeping. I need to look and see if its been drilled and tapped in further for some reason, but not sure if is should be using some sort of ptfe or liquid sealant?Thoughts?
Brembo Callipers - Union weeping.
- Thread starter rhinopower
- Start date
Not cross overs because they are junior gt's, and the nipple is fine, its the union that connects to the hose, which goes to the inner arch. I haven't over tightened them personally.
The line itself isn't weeping, its the union that screws into the calliper that the line screws to. No banjo, not sure i want to try nipping it up further because the shoulder of the union is already against the face of the calliper.
Union is just like this 10mm x 1mm Brake Pipe Union 2 Way for 3 16 Pipe x 1 | eBay
Union is just like this 10mm x 1mm Brake Pipe Union 2 Way for 3 16 Pipe x 1 | eBay
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Sounds like its been drilled/tapped deeper like you say, maybe a repair at some point?
It seals on a conical seat at the bottom of the threads, the threads are just mechanical, they're not intended to be a fluid seal, so using PTFE or loctite is not the correct solution here!
It seals on a conical seat at the bottom of the threads, the threads are just mechanical, they're not intended to be a fluid seal, so using PTFE or loctite is not the correct solution here!
Yeah kinda what I was guessing aragorn. I'l pull the union out tomorrow and check the seat is present, and in which case find a longer union. There was some sort of 'crap' on the threads of the old unions i replaced with bills (same length) so wasn't sure if there was supposed to be something there or not.
Just been out and checked, i've got it the wrong way round. Maybe just needs nipping up a bit more then, as there is a bit of thread left to go. I'l check theres no crap in there.
Sorry for being rubbish guys
Sorry for being rubbish guys
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Might be worth running a tap or thread chaser down the thread to clean out any alloy corrosion rather than trying to force the union in and stripping the threads?
Exactly my intention! I'l report back this afternoon
Hi Rhinopwer ,
I have junior gts on my S3 too , spoke to a brembo specialist when i first got them and was told that the bleed nipple at
the top of the caliper is exactly the same thread as the union for the bottom also made of harder material . So you can chase out or
clean the thread using the bleed nipple , maybe worth a try mate ,
Ant
