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brake question
The metal brake line that goes to the right (passenger side) rear tire was recently replaced by a shop on my '95 YJ. It looks/feels like pliers were used to bend the tubing. The problem is that the brakes now feel very soft. I tried bleeding the rear brakes but air keeps coming out of the right rear no matter how much it is bled. The left rear seems fine and there are no visible fuid leaks anywhere in the brake system. Is it possible for air to get into brake lines even if no fluid is leaking? Thank you in advance, nrs |
Re: brake question
Bleed it again, and don't forget your front axle.
God Bless America, Bill O|||||||O mailto:-------------------- http://www.----------.com/ nrs wrote: > > The metal brake line that goes to the right (passenger side) rear tire > was recently replaced by a shop on my '95 YJ. It looks/feels like > pliers were used to bend the tubing. The problem is that the brakes > now feel very soft. I tried bleeding the rear brakes but air keeps > coming out of the right rear no matter how much it is bled. The left > rear seems fine and there are no visible fuid leaks anywhere in the > brake system. Is it possible for air to get into brake lines even if no > fluid is leaking? > > Thank you in advance, > nrs |
Re: brake question
Bleed it again, and don't forget your front axle.
God Bless America, Bill O|||||||O mailto:-------------------- http://www.----------.com/ nrs wrote: > > The metal brake line that goes to the right (passenger side) rear tire > was recently replaced by a shop on my '95 YJ. It looks/feels like > pliers were used to bend the tubing. The problem is that the brakes > now feel very soft. I tried bleeding the rear brakes but air keeps > coming out of the right rear no matter how much it is bled. The left > rear seems fine and there are no visible fuid leaks anywhere in the > brake system. Is it possible for air to get into brake lines even if no > fluid is leaking? > > Thank you in advance, > nrs |
Re: brake question
Bleed it again, and don't forget your front axle.
God Bless America, Bill O|||||||O mailto:-------------------- http://www.----------.com/ nrs wrote: > > The metal brake line that goes to the right (passenger side) rear tire > was recently replaced by a shop on my '95 YJ. It looks/feels like > pliers were used to bend the tubing. The problem is that the brakes > now feel very soft. I tried bleeding the rear brakes but air keeps > coming out of the right rear no matter how much it is bled. The left > rear seems fine and there are no visible fuid leaks anywhere in the > brake system. Is it possible for air to get into brake lines even if no > fluid is leaking? > > Thank you in advance, > nrs |
Re: brake question
No, but it is possible air got in the combination valve or in the master
cylinder. Some combination valves have a moving pin in the end of them that must be held from moving in order to bleed them out. If air got in the MC, then it might need to be removed to bench bleed it. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) nrs wrote: > > The metal brake line that goes to the right (passenger side) rear tire > was recently replaced by a shop on my '95 YJ. It looks/feels like > pliers were used to bend the tubing. The problem is that the brakes > now feel very soft. I tried bleeding the rear brakes but air keeps > coming out of the right rear no matter how much it is bled. The left > rear seems fine and there are no visible fuid leaks anywhere in the > brake system. Is it possible for air to get into brake lines even if no > fluid is leaking? > > Thank you in advance, > nrs |
Re: brake question
No, but it is possible air got in the combination valve or in the master
cylinder. Some combination valves have a moving pin in the end of them that must be held from moving in order to bleed them out. If air got in the MC, then it might need to be removed to bench bleed it. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) nrs wrote: > > The metal brake line that goes to the right (passenger side) rear tire > was recently replaced by a shop on my '95 YJ. It looks/feels like > pliers were used to bend the tubing. The problem is that the brakes > now feel very soft. I tried bleeding the rear brakes but air keeps > coming out of the right rear no matter how much it is bled. The left > rear seems fine and there are no visible fuid leaks anywhere in the > brake system. Is it possible for air to get into brake lines even if no > fluid is leaking? > > Thank you in advance, > nrs |
Re: brake question
No, but it is possible air got in the combination valve or in the master
cylinder. Some combination valves have a moving pin in the end of them that must be held from moving in order to bleed them out. If air got in the MC, then it might need to be removed to bench bleed it. Mike 86/00 CJ7 Laredo, 33x9.5 BFG Muds, 'glass nose to tail in '00 88 Cherokee 235 BFG AT's Canadian Off Road Trips Photos: Non members can still view! Jan/06 http://www.imagestation.com/album/pi...?id=2115147590 (More Off Road album links at bottom of the view page) nrs wrote: > > The metal brake line that goes to the right (passenger side) rear tire > was recently replaced by a shop on my '95 YJ. It looks/feels like > pliers were used to bend the tubing. The problem is that the brakes > now feel very soft. I tried bleeding the rear brakes but air keeps > coming out of the right rear no matter how much it is bled. The left > rear seems fine and there are no visible fuid leaks anywhere in the > brake system. Is it possible for air to get into brake lines even if no > fluid is leaking? > > Thank you in advance, > nrs |
Re: brake question
If pliers were used to bend the tubing, so that it is crimped, this is a
sign of unprofessional work, and the tubing is likely weakened in the vicinity of the crimps. There are tools that should have been used to produce smooth, professional-looking bends. This does not mean that the method of bending led to your current problems, however. It is not possible for fluid to get into the brake lines, even if no fluid is leaking. There could be a leak, that you are not seeing. Were the brakes "always" very soft, since you had the tubing replaced? Or did this happen afterwards? The method of bleeding is very important. A pressure bleeder is best. Follow that with a rubber tube, that goes from the bleeder fitting, to a container of brake fluid. These are sold with a one-way valve, that prevents air from getting back in. Next, an assistant holds the pedal down, while you wait for all the air to come out, then tighten the fitting. It is pretty hard to get satisfactory results, without mechanical or human assistance. Earle "nrs" <neale_rs@yahoo.com> wrote in message news:1148305953.662587.20920@j33g2000cwa.googlegro ups.com... > > The metal brake line that goes to the right (passenger side) rear tire > was recently replaced by a shop on my '95 YJ. It looks/feels like > pliers were used to bend the tubing. The problem is that the brakes > now feel very soft. I tried bleeding the rear brakes but air keeps > coming out of the right rear no matter how much it is bled. The left > rear seems fine and there are no visible fuid leaks anywhere in the > brake system. Is it possible for air to get into brake lines even if no > fluid is leaking? > > Thank you in advance, > nrs > *** Posted via a free Usenet account from http://www.teranews.com *** |
Re: brake question
If pliers were used to bend the tubing, so that it is crimped, this is a
sign of unprofessional work, and the tubing is likely weakened in the vicinity of the crimps. There are tools that should have been used to produce smooth, professional-looking bends. This does not mean that the method of bending led to your current problems, however. It is not possible for fluid to get into the brake lines, even if no fluid is leaking. There could be a leak, that you are not seeing. Were the brakes "always" very soft, since you had the tubing replaced? Or did this happen afterwards? The method of bleeding is very important. A pressure bleeder is best. Follow that with a rubber tube, that goes from the bleeder fitting, to a container of brake fluid. These are sold with a one-way valve, that prevents air from getting back in. Next, an assistant holds the pedal down, while you wait for all the air to come out, then tighten the fitting. It is pretty hard to get satisfactory results, without mechanical or human assistance. Earle "nrs" <neale_rs@yahoo.com> wrote in message news:1148305953.662587.20920@j33g2000cwa.googlegro ups.com... > > The metal brake line that goes to the right (passenger side) rear tire > was recently replaced by a shop on my '95 YJ. It looks/feels like > pliers were used to bend the tubing. The problem is that the brakes > now feel very soft. I tried bleeding the rear brakes but air keeps > coming out of the right rear no matter how much it is bled. The left > rear seems fine and there are no visible fuid leaks anywhere in the > brake system. Is it possible for air to get into brake lines even if no > fluid is leaking? > > Thank you in advance, > nrs > *** Posted via a free Usenet account from http://www.teranews.com *** |
Re: brake question
If pliers were used to bend the tubing, so that it is crimped, this is a
sign of unprofessional work, and the tubing is likely weakened in the vicinity of the crimps. There are tools that should have been used to produce smooth, professional-looking bends. This does not mean that the method of bending led to your current problems, however. It is not possible for fluid to get into the brake lines, even if no fluid is leaking. There could be a leak, that you are not seeing. Were the brakes "always" very soft, since you had the tubing replaced? Or did this happen afterwards? The method of bleeding is very important. A pressure bleeder is best. Follow that with a rubber tube, that goes from the bleeder fitting, to a container of brake fluid. These are sold with a one-way valve, that prevents air from getting back in. Next, an assistant holds the pedal down, while you wait for all the air to come out, then tighten the fitting. It is pretty hard to get satisfactory results, without mechanical or human assistance. Earle "nrs" <neale_rs@yahoo.com> wrote in message news:1148305953.662587.20920@j33g2000cwa.googlegro ups.com... > > The metal brake line that goes to the right (passenger side) rear tire > was recently replaced by a shop on my '95 YJ. It looks/feels like > pliers were used to bend the tubing. The problem is that the brakes > now feel very soft. I tried bleeding the rear brakes but air keeps > coming out of the right rear no matter how much it is bled. The left > rear seems fine and there are no visible fuid leaks anywhere in the > brake system. Is it possible for air to get into brake lines even if no > fluid is leaking? > > Thank you in advance, > nrs > *** Posted via a free Usenet account from http://www.teranews.com *** |
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