It never stops, more repairs on the horizon, hard brake line

letank · Post by **letank** » Fri Aug 11, 2023 11:58 am

About to get off to a sierra trip... drive down the street for gas... press the brake pedal... sinks a bit lower with a pop... emergency brake lights on... at least the prop valve is doing its job... pissing from the hard line on the Driver's side hard drum line... at least I have spares...

tgreese · Post by **tgreese** » Sat Aug 12, 2023 9:16 am

Had the same thing happen in my J10 - to the line on the rear axle I had replaced the previous decade. Fortunately at low speed. Nicopp all around now.

SJTD · Post by **SJTD** » Sat Aug 12, 2023 12:15 pm

At least it failed before you left. Breakage doesn't get much better than that.

Yeller · Post by **Yeller** » Sat Aug 12, 2023 3:41 pm

I broke the main line just ahead of the rubber line on the rear test driving mine when I bought it lol

letank · Post by **letank** » Sun Aug 13, 2023 10:02 am

Never easy with all those rusty lines... at least I could cut off the lines and pop everything out.

Still missing some bits, the cylinder brake lever link is not provided with the wheel cylinder, but available locally.

CylinderLinkLever.png

letank · Post by **letank** » Wed Aug 30, 2023 2:01 pm

Started to clean up the mess and installing new bits.

Here is the culprit, a tiny pin hole... that carriage is really rusty!

BlineDleakCylDSLx.jpg

Still stuck at the prop valve Rear line fitting ... tried all the usual PB blaster, Kano oil, freeze off, now a little freeze with the inverted duster... and yes the flare wrench used is 14mm

FreezeFittingPropDSLx.jpg

Srdayflyer · Post by **Srdayflyer** » Wed Aug 30, 2023 7:18 pm

mine were the same way, i used heat propane torch and they broke loose and i was able to save the lines, but replaced the valve assy as a precaution.

Srdayflyer · Post by **Srdayflyer** » Wed Aug 30, 2023 7:18 pm

mine were the same way, i used heat propane torch and they broke loose and i was able to save the lines, but replaced the valve assy as a precaution.

letank · Post by **letank** » Thu Aug 31, 2023 12:22 pm

Srdayflyer wrote: ↑Wed Aug 30, 2023 7:18 pm mine were the same way, i used heat propane torch and they broke loose and i was able to save the lines, but replaced the valve assy as a precaution.

Thank you for the heat idea, trying to avoid cooking all these wires and the prop valve.

The rear on the T at the axle were really tight... visegrips did the job.

Checking for local dry ice to chill the fitting!

Srdayflyer · Post by **Srdayflyer** » Thu Aug 31, 2023 3:00 pm

you want to chill the nut not the fitting/p-valve you will cause it to contract tighter on the b-nut. a wet towel around anything that could melt can be protected and you can use the heat method or a heat gun you only have to get it fairly warm, not smoking hot

letank · Post by **letank** » Thu Aug 31, 2023 6:42 pm

Srdayflyer wrote: ↑Thu Aug 31, 2023 3:00 pm you want to chill the nut not the fitting/p-valve you will cause it to contract tighter on the b-nut. a wet towel around anything that could melt can be protected and you can use the heat method or a heat gun you only have to get it fairly warm, not smoking hot

I did not think of the heat gun... that is an excellent approach, a lot easier than the following way.

I was going to dribble super cold alcohol (refrigerated with dry ice) on the nut via a squirt bottle, I practiced with cold alcohol so I can control the spill!

letank · Post by **letank** » Mon Sep 04, 2023 12:14 am

I used my hot air soldering iron... choice of various nozzle sizes... 300C, then 400C... not too sure if it did anything, the real solution was to slide the front driveshaft out of the way so I could slip the vise-grip... and pop it came loose, but there was so much rust that the line was turning with the nut... but it is out and the new line installed.

RrBrakeLInePropDSLheatx.jpg

and the final product

RrBrakeLineOnPropDSLx.jpg

Thank you for the heat gun solution

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It never stops, more repairs on the horizon, hard brake line

It never stops, more repairs on the horizon, hard brake line

Re: It never stops, more repairs on the horizon, hard brake line

Re: It never stops, more repairs on the horizon, hard brake line

Re: It never stops, more repairs on the horizon, hard brake line

Re: It never stops, more repairs on the horizon, hard brake line

Re: It never stops, more repairs on the horizon, hard brake line

Re: It never stops, more repairs on the horizon, hard brake line

Re: It never stops, more repairs on the horizon, hard brake line

Re: It never stops, more repairs on the horizon, hard brake line

Re: It never stops, more repairs on the horizon, hard brake line

Re: It never stops, more repairs on the horizon, hard brake line

Re: It never stops, more repairs on the horizon, hard brake line