Plugging front Brake line Banjo fitting
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Joined: Sep 2017
Posts: 87
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From: farmingdale, NY
Plugging front Brake line Banjo fitting
Hi Guys,
I'll be sending my calipers to be powder coated and looking to plug the front brake hoses so not to loose all the brake fluid. I've heard of people wedging in a rubber hose to the inside of the banjo fitting? Since I have not remove the brake line yet I need to know the size of the hole that I need to seal. I was thinking of a nut and bolt with copper crush washer on each end. But like I said I need to know the size of the hole on the banjo bolt fitting. Anyone have a front brake line the can measure for me? I need hole diameter and length.
Thanks again!!
I'll be sending my calipers to be powder coated and looking to plug the front brake hoses so not to loose all the brake fluid. I've heard of people wedging in a rubber hose to the inside of the banjo fitting? Since I have not remove the brake line yet I need to know the size of the hole that I need to seal. I was thinking of a nut and bolt with copper crush washer on each end. But like I said I need to know the size of the hole on the banjo bolt fitting. Anyone have a front brake line the can measure for me? I need hole diameter and length.
Thanks again!!
Stellar HDF Member
Joined: Jul 2006
Posts: 3,029
Likes: 449
From: Michigan
I have a set of plastic locking pliers that you clamp onto the brake line to cut off the fluid flow. Something like this:
https://www.harborfreight.com/line-c...RoC9TQQAvD_BwE
https://www.harborfreight.com/line-c...RoC9TQQAvD_BwE
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Grand HDF Member
Joined: Oct 2012
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From: Boise, ID
Seems like a lot of fuss to save a couple of bucks. Hell the bolts/washers will probably cost you more & may not work totally.
Even worse is running the risk of dripping that stuff onto your paint while trying to keep some old most likely contaminated fluid.
You're going to need to purchase more fluid to replenish what you'll lose. Those bottles should be plenty to fill it with new fluid.
You're going to have to bleed them either way.
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HDF Community Team
Joined: Nov 2012
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From: USA
Youll still have leakage at the holes where the bolts go through the washers. You need to seal that as well.
O-rings are softer than crush washers, so it takes a lot less pressure to seal with them instead.
a tiny C-clamp and two wee pieces of flat wood can seal very well. Vice grips instead of the c-clamp in a pinch.
A bit of shop exploration and between pieces of dowel, pen caps, etc should give you a trove of plugs. Even an foamy ear plug. A power drill and sandpaper lets you turn all kinds of things down quickly, making something thats a little too big into a nice taper plug.
Put it all in a baggie and rubber band it to the like to keep any leaks/webpage contained.
O-rings are softer than crush washers, so it takes a lot less pressure to seal with them instead.
a tiny C-clamp and two wee pieces of flat wood can seal very well. Vice grips instead of the c-clamp in a pinch.
A bit of shop exploration and between pieces of dowel, pen caps, etc should give you a trove of plugs. Even an foamy ear plug. A power drill and sandpaper lets you turn all kinds of things down quickly, making something thats a little too big into a nice taper plug.
Put it all in a baggie and rubber band it to the like to keep any leaks/webpage contained.
Club Member
Joined: Sep 2010
Posts: 15,428
Likes: 7,122
From: Beyond Fucital
Drain it and bleed it. Probably due to be replaced anyway.
You can buy a brass plug to seal the master cylinder so you can keep riding until you get the caliper back.
Never mind, you aren't riding anytime soon.
You can buy a brass plug to seal the master cylinder so you can keep riding until you get the caliper back.
Never mind, you aren't riding anytime soon.
Last edited by RANGER73; Dec 17, 2020 at 07:59 AM.