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Front brake hose fitting (1981 GTI)

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Brake hose fitting issues

Hi Guys,

I am currently over hauling my front brakes and I am fitting the brake hose and seem very very tight and I don't want to damage them I put the old hoses in and they wouldn't go in either.

The hose I have got for this overhaul is from VW Heritage and the part number matches to the diagrams I am using (171611701L)

https://www.heritagepartscentre.com/uk/171611701l-front-brake-hose-335mm.html

the brakes which I have are ATE brakes - for reference

So the questions I am asking are: -

1. Are they supposed to be so tight or are they quite loose when they go in ?

2. Are they fitted with copper washers ?

Many thanks for you help

Sean and Luke

 

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No to the copper washers.

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Wrap the ends with Teflon Tape (white) when starting the threads they will be loose until the second thread catches.

They should be fully tight when finished.  
Make sure that you don't have a twisted coil at the end. The Brake line is secured and straight fromt he fitting oh the hose to the hard line to the Caliper.

What do Divorces, Great Coffee, and Car Electrics all have in common?

They all start with GOOD Grounds.

Where are my DIY Links?

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Are you fitting new calipers? Do the old hoses screw into the new caliper easily?

Could be the thread on the caliper or hose is wrong? Manufacturer defect.

It should not be 'very' hard. It is can be very hard if the threads are wrongs. First thread picks up then subsequent ones are very hard if the thread types are wrong.

If you manage to fit the hose and it leaks then you will need to fit copper washers (on the caliper end). Do not use white tape to rely on sealing because the PTFE will dissolve due to the solvents in the brake fluid and leak after a few weeks.

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where would you put the copper washers ?

Do not know a lot but willing to help if possible

1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF

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nicci21paul said

where would you put the copper washers ?

There are no copper washers that I know of in the Braking system.  

Copper washers or (crush) washers are used mainly in CIS, and Diesel Fuel systems, that rely on Banjo fittings.

Screen Shot 2021-07-28 at 12.32.29 PM.png

What do Divorces, Great Coffee, and Car Electrics all have in common?

They all start with GOOD Grounds.

Where are my DIY Links?

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Yeah - copper washers are not required. I had an experience before where it leaked at the caliper end so I fitted a copper washer and it worked.

Now I use copper washer every time to be safe.

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cannot understand how a copper washer
is actually going to work on the front calipers

Do not know a lot but willing to help if possible

1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF

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It's ultimately a threaded union, the copper washer goes between the hex bit on the flexi and the caliper. But unless the caliper has been faced you'd really need to crush the washer hard to get a seal on it. For brakes the seal should be on the taper and the corresponding taper at the bottom of the hole (if that makes sense). Unless it's a rather old car that uses banjo fittings to the caliper (eg an MGA).

My rebuild thread I will try and keep up to date: here

K-Jet fuel pressure test guage How-To

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Re:

paceman said

It's ultimately a threaded union, the copper washer goes between the hex bit on the flexi and the caliper. But unless the caliper has been faced you'd really need to crush the washer hard to get a seal on it. For brakes the seal should be on the taper and the corresponding taper at the bottom of the hole (if that makes sense). Unless it's a rather old car that uses banjo fittings to the caliper (eg an MGA).
Maybe on the rears front ones are male and female fitment or am I missing something here

Sent from my SM-G960F using Tapatalk


Do not know a lot but willing to help if possible

1989 Sapphire Blue Mk1 Cabriolet KR
1985 Atlas Grey Mk2 GTI 2.0 ABF
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