Front disc Brake service. How to do the complete Job like a pro!

[Thegarmendia]

Thanks for all your responses I have recently graduated from Automotive school this past October Im only 20 and barely starting to get into the industry. I prefer to get all of my knowladge from people who have been doing automotive work for decades than from text books which are written by mostly morons according to my school instructors and after reading a few things myself. The worst thing is that when called upon to correct their mistakes most book companies will turn the other way. Thanks!

[shopken1]

@Thegarmendia - Good luck in your career launch. All I can say is use good judgement and always inquire as to WHY things fail and what the best and most significant repairs are for the intended use. Lots of "Old wives tales" in the industry- and "its how we have always done things here" Often proceedures that are outright foolish and against the grain. Care is the element of a craftsman- flatrate thinking has ruined many a would be happy tech falling into hackery for a buck. No pride left.

[Thegarmendia]

Thanks for your response one last question I specifically remember reading about the poly and Teflon lined hoses. Is there any way one can tell by visually looking at the lines if they are indeed poly and teflon lined? Is this something that is done on an application (ie. Heavy vehicles) or car manufacturer bases?

[shopken1]

@Thegarmendia- IMO if its used as a brake hose-- its made to go to hell and back.. and it is doubtful that the lines will be damaged by careful and gentle restricting. Remember for service, you are not trying to squeeze the hose hard enough to hold pressure.. only flow which does not take much pressure. The other teflon and poly lined hoses I refered to were A/C an Fuel hoses. I have seen poly lines used in some brake applicaitons that were plainly poly plastic.

[shopken1]

@shopken1- poly air lines are a clear No-No to restrict but its obvious that they are for air brakes!

[Thegarmendia]

Great video but I have read on ASE and other book material that brake lines should not be clamped especially on newer vehicles is this true? I know you are using hose clamps and that allot of the time the people who write the automotive books dont actually have any hands on experience. What is your take on this?

[shopken1]

@Thegarmendia - Most techniclal manuels are about reduction of liability and assuming that everyone is stupid. Brake line clamps are made for the Job and will not damage a hose. I have clamped lines as such when the tools first were introduced in the early 70s. I have done thousands of brake jobs and over seen thousands more. The clamps actually will find a failing or rotten hose by the feel and sound of compression... otherwise wait until it splits or leaks out. What is safer?

[shopken1]

@Thegarmendia - Even clamping tools designed for the job can be over applied or over a high stress area which is not recommended (like the pivoting/twisting area of the hose) after squeezing a few thousand hoses you get a good feel for what is normal. Clamps make great diagnostic tools also and have saved customers thousands of dollars on more invasive and time consuming methods of isolation etc.

[shopken1]

@Thegarmendia - Most of the hoses I see on newer cars are of even higher quality than past offerings, more pliable and softer. Exterior surfaces are very rot resistant. I know of techs that use clamp/brake pliars even on poly and teflon lined hoses (I dont recommend this) and report no known ill effects. Rounded contact areas and parallel clamping surfaces apply even pressure across the hose.