Pipe into master cylinder weeping fluid

[497adam]

I’ve noticed the front pipe into the master cylinder is weeping/leaking fluid. I’ve tried just nipping it up a touch more but it’s already tight. Typically I’ve a got a track day on Thursday. I’m worried it’s going to need a new pipe. Any suggestions for a temp fix ?

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[JamesBryan]

Is it just the pic angle or is that not threaded in straight?

Looks like it could be cross threaded...

 

[497adam]

I couldn’t decide when looking by eye if it was


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[JamesBryan]

Looks to me like it might be.

Can see the red line of the thread isn't parallel with the body (yellow).

 

[497adam]

I will try slackening it off - hopefully it isn’t stripped


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[JamesBryan]

Hopefully it's just an optical illusion and it's alright.

But something is definitely wrong with it if it's leaking.

 

[Krarl]

Try roughing up the flare on the brake pipe so it seats and squashes nicely. Wiggle the pipe as you tighten too so the ferrule doesn't catch the edge of the flare

@JamesBryan threads do have a slight downwards pitch you flid 😂

 

[JamesBryan]

Try roughing up the flare on the brake pipe so it seats and squashes nicely. Wiggle the pipe as you tighten too so the ferrule doesn't catch the edge of the flare

@JamesBryan threads do have a slight downwards pitch you flid 😂

I know that! But it looks more than normal.

A bit like when one of my rear caliper lines went in a bit pissed and wouldn't seal up.

Even if you go off the head of the nut, it's still slightly off.

 

[Krarl]

Nah you could be onto something there like pal, looking at the end of the hex you can deffo see it's a it on the piss

 

[497adam]

Cheers guys.


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[497adam]

Is the front pipe the front circuit?


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[JamesBryan]

Is the front pipe the front circuit?


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Pass... Not sure mate.

Doesn't take much to cross-thread a steel thread into an aluminium body.

It can be re-tapped if needed.

 

[Usr117063]

Cross threaded and the flare has not seated properly, might need a new line if the flare has been squashed and misshaped. This is a possibility because... I did the same 😅

When threading the fitting back in it should be very easy to turn all the way until it bottoms out.