Break Wear report - 32k miles

Does the Prius experience reduced front pad wear due to regenerative braking compared to other "normal" cars?

I know I got the rear OEM pads on my CivicHX to last 190K miles. I think they were ~ 4mm from factory too, but changed out the front pads 3 times.

So hopefully, the pad wear will be more even with the Prius.

 

Rick:

What is the e-brake procedure you talk about?

Thanks,

Alan

 

I think he means emergency brake.

 

<div class='quotetop'>QUOTE(rick57\";p=\"71026)</div>

My Toyota Tech Manual does NOT state any adjustment about the e-brake, but about normal brake.

Have you taken a look Toyota Prius official documents?
Your signature says you're a Toyota Master Diagnostic Technician and a Prius Master Technician.

However, you had never had any info about new pad's and liner's thickness where an amateur, like me, has it.

I think it is very strange.
How do you think, everybody?

Regards,
Ken@Japan

 

Rick:



Didn't know that! At least I won't have to worry about backing up just to "adjust" my rear drum brakes.

However, I religiously use my parking brakes, I mean *always*. So maybe that's why my brakes work so well??

 

<div class='quotetop'>QUOTE(ken1784\";p=\"71142)</div>

My Toyota Tech Manual does NOT state any adjustment about the e-brake, but about normal brake.

Have you taken a look Toyota Prius official documents?
Your signature says you're a Toyota Master Diagnostic Technician and a Prius Master Technician.

However, you had never had any info about new pad's and liner's thickness where an amateur, like me, has it.

I think it is very strange.
How do you think, everybody?

Regards,
Ken@Japan[/b][/quote]
Ok,Ken, I made a mistake that an amateur like you caught, Yes I am a Toyota Master Diagnostic Technician but that doesn't mean I know all. Toyota's are not as trouble prone as some cars so each problem is like the first. There is so much info about the whole Toyota line it is impossible to memorize it all,even for 1 car. I just try to remember the important points I see from day to day and know where to find what I don't know. If my title bothers anybody else I will remove it and just be a normal surfer.
About the specs,yes they are in the manual and maybe my fault I didn't take the time to look it up. And about the e-brake that is a mistake. I spoke to soon. All other Toyota's have adjusted by using the e-brake. But looking into the Prius,it uses a Auto Adjuster that keeps the clearance at a predetermined amount(NCF 1st gen)and from what I take it,anytime the rear brake is used.
If the rear brakes need to be adjusted;,adjust up the shoes till the drum locks,back off 8 notches,then check for 6-8 clicks when you depress the parking brake. If out of spec readjust the parking brake pedal travel.(double check me Ken,this came out of 05 Prius repair manual, :roll: )

 

So Rick, now I'm officially confused about the rear drum brake. First of all, is it "self-adjusting?" If so, does it adjust by using the parking brake or by applying the brakes while backing up?

With my 1984 Ford F-150, the self-adjust cam on the rear drums will only work if while in reverse you *really* hammer the brakes.

Otherwise, I support the rear axle with jackstands and put the C6 automatic in N. I then take the rubber plug off the backing plate and use that God Awful drum brake tool and a screwdriver to turn the adjusting wheel until the shoes just touch the drum, then back off a click or two.

Since the Prius is a front drive, it should be easier to do myself if I wanted to. Unless there is some weird procedure where I'm better off just letting the dealer take care of it.

Don't feel too bad about missing some details. I once shut down an entire chemical plant when I was compiling new process programs for their Honeywell TDC 3000 process computer (This was 1988).

I skipped the Data Entity Builder step and when I attempted to load the program, the computer crashed. I think that was the only time I've ever seen or heard of a Honeywell TDC actually crashing.

 

<div class='quotetop'>QUOTE(jayman\";p=\"71279)</div>

The description of the "Incremental Type Hydraulic Auto Adjuster" is on page 102 of the 1st generation Prius. Looking in the 2nd gen NCF,the wheel cylinder diameter and lining material are different,but the rest is a carry over from the previous version. The way I read the description is that when the shoes expand out,the tip of the adjuster can rotate the star wheel if the clearance is to much. It doesn't specify if you need to go forward,backward or use the e-brake. So I would assume anytime the shoes move out it would adjust if needed. But I still think it is a good idea to use the e-brake regularly,if not to hold the car,but to keep the cables freed up. :wink:

 

Rick:

Thanks.

Don't worry, I always use my parking brakes. That's why they're called "parking brakes" right?

Especially with the road salt up here, folks who never use their parking brakes will get a nasty surprise. The one time they really do need their parking brake, it will be seized right up.