Fernando Mendes Posted November 26, 2018 Report Share Posted November 26, 2018 Which is the cause? Quote Link to comment Share on other sites More sharing options...
Merle Coggins Posted November 26, 2018 Report Share Posted November 26, 2018 A pulse in the brake pedal, when brakes are applied, is usually due to a warped brake disc or drum. If the drum is out of round the shoe will follow the concentric circle causing the pulse/oscillation feel. 3 1 Quote Link to comment Share on other sites More sharing options...
Fernando Mendes Posted November 30, 2018 Author Report Share Posted November 30, 2018 Thanks.I solved the problem. 1st:I was thinking that was a cracked and welded front left drum I use since many years. 2nd:Changed the drum to another different,but continues the oscillation,it did not enter totally until the backing plate. 3rd:Identified a strange ring in axle shaft and withdrew it. 4th:Reput my old,cracked and welded drum and felt the oscillation reduced. Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted November 30, 2018 Report Share Posted November 30, 2018 somewhere along the line you need to have quality parts that are true to specification....your shoe lining may well now be 'conditioned' to that of the old drum....I hope you are repairing this with the aid of the proper brake tool...else, when finished you still going to have issue if not immediately apparent, somewhere down the line they will pop up...then you back to teardown and scratching your head for ideas and answers Quote Link to comment Share on other sites More sharing options...
Fernando Mendes Posted November 30, 2018 Author Report Share Posted November 30, 2018 3 hours ago, Plymouthy Adams said: somewhere along the line you need to have quality parts that are true to specification....your shoe lining may well now be 'conditioned' to that of the old drum....I hope you are repairing this with the aid of the proper brake tool...else, when finished you still going to have issue if not immediately apparent, somewhere down the line they will pop up...then you back to teardown and scratching your head for ideas and answers Who teardown is my mechanic Joseph I only scratch my head.? Quote Link to comment Share on other sites More sharing options...
Plymouthy Adams Posted November 30, 2018 Report Share Posted November 30, 2018 you should strive to become your own wrench..... 1 Quote Link to comment Share on other sites More sharing options...
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