Guys help me with some brake cylinder replacement questions - Ranger-Forums - The Ultimate Ford Ranger Resource


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Old 02-18-2010
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Guys help me with some brake cylinder replacement questions

Hey I'm replacing my brake cylinder(duh), so just some quick advice I need.


Any tricks to removing the nut around the brake line?

Know what size the nut is? Metric or standard..? I couldn't get metric to fit, it was somewhere between 9 and 10 i think.


I don't have any PBBlaster or wd-40 and i dont want to particularly buy any. I had to buy almost all the tools to fix my truck so i've already spent enough, thanks.
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Old 02-18-2010
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If I'm thinking of the correct line...I think its a 7/16". If not that, have you tried a crescent wrench?
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Old 02-18-2010
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There is a proper tool for this. A normal wrench will most likely strip that nut.

Get a cheap set of crow-foot wrenches. Cost me like $10 for a set of 20.
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Old 02-18-2010
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are you replacing the master cylinder or a wheel cylinder?
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Old 02-18-2010
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Quote:
Originally Posted by Crunchy View Post
There is a proper tool for this. A normal wrench will most likely strip that nut.

Get a cheap set of crow-foot wrenches. Cost me like $10 for a set of 20.
I just used a normal wrench and it was fine.
Is the nut striped out any now? If so then you may need to at least use a pair of vise grips if not one of them crow foot thingys.
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Old 02-18-2010
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I'm replacing the wheel brake cylinder and I think I'll have to buy those crow-foot wrenches. Because the nut isn't stripped out but it's asking for it,

Thanks guys. Trying to fix my truck before class this morning if possible!

-Aaron
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Old 02-18-2010
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unbolt the wheel cylinder off of the backing plate and unscrew the wheel cylinder without moving the nut, then once the wheel cylinder is removed, you can then lubricate the nut and spin it free from the line
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Old 02-18-2010
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You need Fitting wrenches not crow foot.
If you're a tightwad like me , take a hacksaw to a box end wrench and remove just enough material from the end of the "box" to allow it to slide over the steel line.
Since you are replacing the wheel cylinder anyway , lay some rags under the cylinder and heat the fitting with a propane torch for a few minutes. The fluid will expand and leak out the pistons. But it helps loosen the fitting.
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Old 02-18-2010
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Unfortunately I'm at college and dont have access to many tools. Both your ideas are excellent though.

Lucky me, the lug nut is horribly stuck to the wheel stud and (blah blah blah) im removing the ****er with a hacksaw. I hate when **** doesn't go right.

On the bonus side, i had a test today, definitely got a 100%. One more test to go then i can go home.
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Old 02-18-2010
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If you have a 4 way lug wrench and a BFH , put the wrench on the nut and beat the pi$$ out of the wrench like you are trying to drive the nut through the rim.Usually loosen's them enough.
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Old 02-18-2010
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Quote:
Originally Posted by Toreador4x4 View Post
unbolt the wheel cylinder off of the backing plate and unscrew the wheel cylinder without moving the nut, then once the wheel cylinder is removed, you can then lubricate the nut and spin it free from the line
And twist the steel line into a pretzel.
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Old 02-18-2010
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And twist the steel line into a pretzel.
no, you hold the nut with the wrench but don't turn it while unscrewing the wheel cylinder from the line. obviously the line doesn't have enough strength to stay stable while you unscrew the wheel cylinder. I do them at home and at the dealership all the time like this if the line looks questionable for the nut to unscrew. that way, the nut is not pressed up against the flare once the wheel cylinder is off making it much easier to break it free from the line if it is stuck to the line
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Old 02-18-2010
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Yah I would do it that way but im trying to take the brake cylinder out WITHOUT completely removing the breaks, just to save myself one extra headache. Or apparently creating a headache for myself!
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Old 02-19-2010
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Everything is fixed thanks guys especially for saying the brake line is 7/16, helped me by a flare nut wrench. Everything is fixed now I need to take tools back to their respective warranty serving places.
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