my driving or bad brakes

[Paul and Sue]

I just had my brakes done on the recall. My front brakes were good (over 60%) and the rear was over heated and worn bad (38,000 miles). I always thought the front brakes do most of the work, like 60 to 40 % to the rear. I thought the front would over heat if it was my driving. Would this be the bad WH brakes or my driving? I do both flat and mountain driving.

What I am asking should I rerview my driving habits or was it the brake system. I don't want to buy new brakes again.

[pawpawboyce]

i think it must be the brke system. driving a motorhome is not much different than driving a car except on a larger scale. obviously, you aren't riding the brakes and that's the only thing except a faulty brake system.

boyce and lisa
06 meridian 39k
06 jeep unltd
ox aventa lx tow

[mfire1339]

Of coarse I second pawpaws opinion. Bum brakes and nearly always an 2004.


Mike

[damdannyboy]

you could be using to much heal pressure when breaking and not enough toe !

[DriVer]

Quote:

Originally Posted by Paul and Sue What I am asking should I review my driving habits or was it the brake system. I don't want to buy new brakes again.

Did you read the article I wrote? I had the same situation where I replaced my rear pads only. If you had pad transfer then that was a problem with the calipers.

You will have to change your pads again so don't be too surprised if they wear down in 60,000 miles or 5 years or so. Don't forget to flush your fluid every 2 years.

[Davel]

Even though damdannyboy's response was funny.... There's no way you can put your foot on the brakes and just activate the fronts or rears, or the lefts and rights. This is one of the reasons this problem was so hard to identify because it was so random. With the factors of moisture swollen phenolic pistons and piston clearances on the tight side of the spec occuring randomly between, and within, coaches it was hard to get a pattern that made the problem obvious. My coach was the same way; fronts, that do the majority of the braking, were fine while the rears had pad tranfer to the rotors at 45,000 miles. I experienced no symptoms whatsoever of brake issues; no soft pedal, no fade, no odor but my brakes had at some time been dragging. So I think your driving was not at fault at all, it was just "luck of the draw".

Good Luck,

Dave

[speed racer]

Brake pressure bias is differant on a truck than on a car. There is more tires on the rear to stop with and more load is on the rear. If a truck had a 60/40 brake bias the front tires would be wanting to slide all the time under heavy braking.

[lonestarace]

I agree with Speed Racer, the bias is more on the rear than on a pass car.

Our 98 38'DSDP w/74k miles & drum air brakes is getting close to needing a rear brake job. The front brakes have a lot more miles left in them.

Don

[hwybnb]

I have thermocouples installed on all four brake caliper housings an monitor them continuously when driving. The rears always run hotter than the front and heat up way more when using the brakes to assist descending a grade. The right rear gets hotter than the left.

[dieselclacker]

Not only brake bias, but on most passenger cars with a 60/40 weight ratio, the front pads are larger than the rear (more square inches). Workhorse with the weight distribution opposite to autos has brake pads and rotors that are the same size front and rear. I would think with the weight distribution of motorhomes that the rear brake pads, being the same size as the fronts, would wear sooner than the fronts.

Dieselclacker

[Topflite51]

Dieselclacker has said it best.

[DriVer]

Quote:

Originally Posted by hwybnb I have thermocouples installed on all four brake caliper housings an monitor them continuously when driving. The rears always run hotter than the front and heat up way more when using the brakes to assist descending a grade. The right rear gets hotter than the left.

hwybnb, Are the thermocouples being used on the new calipers?

[speed racer]

Quote:

Originally Posted by lonestarace I agree with Speed Racer, the bias is more on the rear than on a pass car. Our 98 38'DSDP w/74k miles & drum air brakes is getting close to needing a rear brake job. The front brakes have a lot more miles left in them. Don

You will also notice that with air brakes the rear brake chambers are much larger in diameter than the front to allow more mechanical pressure to be applyed to the brakes.

[Paul and Sue]

Thanks guys, I always learn something new on this forum.

Paul