Brakes

Submitted: Wednesday, Jul 30, 2014 at 10:28
ThreadID: 108948 Views:2130 Replies:9 FollowUps:11
This Thread has been Archived
My Toyota 79 2013/14series has just had a 25,000 service and i am told that the rear brake pads are almost worn out -only 3mm of pad is left.The previous service they were checked at over 5mm and in "good" condition. iI am told this may be from carrying heavy loads, i do have this set up as a camper with a rooftop tent on top and i have just returned from a trip up the Kimberly (9500km) in 6 weeks mostly off the bitumen, longish trip but of course not much braking or stop and go when touring. Did have problems with ABS not working on corrugations (warning light comes on).
Would appreciate any ideas or help
Back Expand Un-Read 0 Moderator

Reply By: Bob Y. - Qld - Wednesday, Jul 30, 2014 at 11:34

Wednesday, Jul 30, 2014 at 11:34
P B,

When we lived on a station, on Diamantina River, a few years back, had 2 79 series ute's, a 105 wagon converted to dual cab, plus our own 80 series wagon.

The work vehicles averaged between 25 - 30K on a set of brake pads, depending who was driving :-). The 105 seemed to be harder on pads, but was often pretty heavy, loaded with motorbikes, avgas and bodies. When caught in muddy, slushy conditions, the 105 would chew rear pads out almost over 100 clicks or so.

If your ute is well loaded with camper & RTT, then the proportioning valve will be allowing more pressure to rear calipers = more wear. Dust and gritty road surfaces contribute to increased wear too.

We used to check pad wear every 5K.......fronts are easily visible, but rear need either wheel removal, or use torch and small mirror. The result if allowed to wear onto the discs, or worse, can be very expensive!!!

Bob

Seen it all, Done it all.
Can't remember most of it.

Lifetime Member
My Profile  My Blog  My Position  Send Message

AnswerID: 536844

Reply By: John and Regina M - Wednesday, Jul 30, 2014 at 12:53

Wednesday, Jul 30, 2014 at 12:53
Ideas or help with what?
ABS? Pad thickness? Pad wear?
AnswerID: 536847

Follow Up By: Batt's - Wednesday, Jul 30, 2014 at 18:54

Wednesday, Jul 30, 2014 at 18:54
looks like most people can figure it out no rocket science involved
0
FollowupID: 821095

Reply By: olcoolone - Wednesday, Jul 30, 2014 at 12:59

Wednesday, Jul 30, 2014 at 12:59
You should get more than that out of a set of pads under normal conditions, one killer of pads and rotors is mud and constant driving on dirt roads..... think of it as sand paper.

If you think of the pad having 8-10mm of material and you have worn 2 and a bit mm's of in 25 thou that's not bad going and pretty normal for a heavy vehicle but in your case getting to 3mm pad wear in 25 thou is a bit excessive and especial 5mm at the last service.

Most of the breaking comes from the front and the rears are trailing only, have you got a lift kit and is the load proportioning valve on the rear diff adjusted correctly.

Most factory pads wear very well.
AnswerID: 536848

Follow Up By: olcoolone - Wednesday, Jul 30, 2014 at 13:01

Wednesday, Jul 30, 2014 at 13:01
Should read.....

"case getting down to 3mm pad wear in 25 thou is a bit excessive and especial down to 5mm at the last service"
0
FollowupID: 821073

Follow Up By: Member - P B (WA) - Thursday, Jul 31, 2014 at 15:52

Thursday, Jul 31, 2014 at 15:52
I dont have a lift kit just air bags supporting rear end sag,

apparently i dont have a proportioning valve on this model as the ABS makes the allowance !!!
0
FollowupID: 821175

Follow Up By: AlbyNSW - Thursday, Jul 31, 2014 at 20:36

Thursday, Jul 31, 2014 at 20:36
PB I have the same vehicle with ABS and there is a load proportioning valve on mine
My pads lasted 50k before changing them
0
FollowupID: 821192

Follow Up By: olcoolone - Thursday, Jul 31, 2014 at 22:28

Thursday, Jul 31, 2014 at 22:28
A load proportioning valve is needed on all vehicles that may have a large difference in weight from empty to full. Mostly commercial based vehicles.

It regulates to amount of brake differential from front to rear.......heavier load more braking to the rear and less weight less braking to the rear..... It does not alter the efficiency of the front brakes, only the rear.

It balances out the braking as the weight is being transferred helping to keep the vehicle level.

ABS will only stop lockup and will not proportion.
0
FollowupID: 821200

Reply By: Member - Rosco from way back - Wednesday, Jul 30, 2014 at 13:42

Wednesday, Jul 30, 2014 at 13:42
Seems a tad early, however as a basis for comparison, we had the 40K service done at Kununurra on a recent trip up that neck of the woods and they replaced the rear pads on our VDJ79 as part of the capped price service.
AnswerID: 536852

Follow Up By: Member - P B (WA) - Thursday, Jul 31, 2014 at 15:55

Thursday, Jul 31, 2014 at 15:55
You must have jumped up and down pretty high as brake replacement is not included
0
FollowupID: 821176

Follow Up By: Member - Rosco from way back - Thursday, Jul 31, 2014 at 16:05

Thursday, Jul 31, 2014 at 16:05
Nope ... they rang to tell me the pads needed replacing, I said go ahead, expecting to fork out for it, but when I called in to collect he said ... "Oh, you're on capped price servicing, that'll be 300 smackers please and handed over the keys"

I saw no reason to argue the case that he should charge me extra .. ;o)
0
FollowupID: 821179

Follow Up By: AlbyNSW - Thursday, Jul 31, 2014 at 20:24

Thursday, Jul 31, 2014 at 20:24
Your lucky day Rosco because pads definitely not included in capped service price
0
FollowupID: 821191

Reply By: Slow one - Wednesday, Jul 30, 2014 at 14:24

Wednesday, Jul 30, 2014 at 14:24
PB,
I do find 25000K very early for the rears to have worn out even if you had the rear well loaded, I wonder if the brake proportioning valve is working correctly by sending to much braking to the rears.

As for the ABS, I think you are lucky that it had a problem as I hate the bloody things on dirt.
AnswerID: 536853

Follow Up By: Member - Rosco from way back - Wednesday, Jul 30, 2014 at 14:30

Wednesday, Jul 30, 2014 at 14:30
Yep re the valve. If by chance you have lifted the vehicle, you will need to install the same size packing at the axle housing mount to maintain proportional braking.
0
FollowupID: 821079

Reply By: Member -Pinko (NSW) - Wednesday, Jul 30, 2014 at 17:21

Wednesday, Jul 30, 2014 at 17:21
My brake service centre has a rolling road device that gives a computerised readout for the brakes on each individual wheel.
They added around 100mm. to the brake proportioning rod.
I now have good brakes both towing and loaded.
Living is a journey,it depends on where you go !
VKS 737 mobile 0049 selcall 0049

Member
My Profile  My Position  Send Message

AnswerID: 536855

Follow Up By: Member - P B (WA) - Thursday, Jul 31, 2014 at 15:59

Thursday, Jul 31, 2014 at 15:59
I did make inquiries a few years ago and there is no one in the Perth area with a rolling road, wish there was
0
FollowupID: 821177

Reply By: Kenell - Wednesday, Jul 30, 2014 at 18:28

Wednesday, Jul 30, 2014 at 18:28
I have a 76 series that is 2.5 years old. It has done nearly 50000k and at last service it was only down 2 mm on rear pads. My driving is 80% city although I don't have ABS. My offroading is generally steep, dusty or muddy (at this time of year). When I traded my GU it was due for its first pad changes at 225000ks. I think the pads on that were diamond encrusted !! Sounds to me like the ABS /load could be over wearing your pads.
AnswerID: 536859

Reply By: Member - KBAD - Wednesday, Jul 30, 2014 at 18:59

Wednesday, Jul 30, 2014 at 18:59
PB see you are in WA if you are around the Rockingham area can recommend ABR (Advanced Brake Remanufactures) in Port Kennedy the proprietor's name is Kelvin knows his stuff. Very satisfied with his work. You may want to consider the type of brake pad used not all are the same, and what the manufacturer is happy with might not be up to the task that you have set.
AnswerID: 536861

Follow Up By: Member - P B (WA) - Thursday, Jul 31, 2014 at 16:04

Thursday, Jul 31, 2014 at 16:04
Thanks for that info i will keep it in mind and check him out
0
FollowupID: 821178

Reply By: Member - Phil G (SA) - Wednesday, Jul 30, 2014 at 22:01

Wednesday, Jul 30, 2014 at 22:01
I expect the 3mm is the rears which often wear quicker than the fronts. The rears have a leading caliper which is more likely to cop mud and sand when offroading - especially if owners fit spacers to the rears, or with skinny wheels which have less coverage over the discs.
AnswerID: 536875

Sponsored Links

Popular Products (13)