jim beam wrote:
> dovesma@yahoo.com wrote:
>
>> Hi All,
>>
>> I am a new member to this group, i need some advice on my 1992 EX honda
>> accord. The problem is when i brake the whole car vibrates
>> (pulsating). It doesnt matter what speed is it, it just vibrates, i
>> changed the rotors and pads several times but the problem never seems
>> to leave. It would be okay for 3 or 4 months after i change the rotors
>> and pads then it comes back. I took it to my mechanic and dealer but
>> they couldnt narrow it down what causes the problem. The rotor and
>> pads are fine. My mechanic suggessted me to change the sprindle, but i
>> am not sure. I need some expert advice on this to tackle this problem.
>> Please provide some light on this. Thank you.
>>
> wheels for a honda need to be torqued to the correct level *by hand* and
> the nuts need to be tightened in the correct order in a two [or more]
> stage process. failure to do so and use of air tools results in exactly
> your described problem, and if neglected, the results become permanent
> to that disk/hub.
>
> the cause is honda's use of a lightweight hub which can elastically
> distort if not tightened right. usually, cleaning the hub and correct
> torque corrects the problem. if not, clean the hub, replace the disk
> and try again.

Another thought: if you have rear drum brakes, have you
checked/adjusted/replaced those? If they aren't working right, it means the
front brakes will be doing all the work, which in itself can cause shake, will
wear them out a lot faster, and can warp the rotors more readily because of the
increased heat (which will also reduce their effectiveness).