Patrol brake pad fell out!
Submitted: Tuesday, May 22, 2007 at 10:45
ThreadID:
45746
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5255
Replies:
9
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Niffty
The front disc pad on the GQ fell out while off road 2 weeks ago leaving me in a dangerous situation.I had no pedal brakes at all !It was the front passenger outer pad that went walkies.We made it back to the
camp using the hand brake and then went back in a friend's patrol to search (and found) the pad.Should of bought a lotto ticket.
The question on my mind is has this happened before? My pads were just ok on the wear limit recommended by Nissan so why should a pad be able to fall out? A bad design fault? I spoke to a person a the local dealers and he said this could only happen if the wheel bearings were shot.Not the case on my GQ I had only minimal play in the hub.So be aware that this can happen and could end in a fatality .I sure will be replacing my pads
well before Nissan's recommended thickness limit.
Once bitten twice shy.
Niffty
GQ HQ
Perth
Reply By: Get down &dirty - Tuesday, May 22, 2007 at 12:38
Tuesday, May 22, 2007 at 12:38
Nifty,
This is generally the result of machining your discs to far and a very good reason not to do it! It allows the pistons to push the pads beyond where they are still captive. Two new disc rotors required.
Regards
GD&D.
AnswerID:
241566
Follow Up By: Niffty - Tuesday, May 22, 2007 at 14:16
Tuesday, May 22, 2007 at 14:16
I have just put callipers on the disc and they are standard at 20mm so thin discs ain't the problem.Guide pins were all
well greased and free.So the mystery remains.
Niffty
FollowupID:
502502
Reply By: 120scruiser (NSW) - Tuesday, May 22, 2007 at 12:55
Tuesday, May 22, 2007 at 12:55
Patrols and Mitsubishi Express vans do it as
well. Mainly the early models.
It pays to have regular
services done.
AnswerID:
241570
Reply By: Member - 'Lucy' - Tuesday, May 22, 2007 at 15:58
Tuesday, May 22, 2007 at 15:58
Can't believe that this has happened to a Nissan.
A rubbishy old Toyota or JEEP yes, but not a Nissan.
AnswerID:
241602
Follow Up By: Niffty - Tuesday, May 22, 2007 at 16:33
Tuesday, May 22, 2007 at 16:33
I couldn't believe it either but I was rescued by a Nissan ( MQ). Another case of believe it or not. I doubt weather a Jeep or Toyota would have made it where we were :-)
Niffty
GQ HQ
Perth
FollowupID:
502519
Follow Up By: Member - Stephen M (NSW) - Tuesday, May 22, 2007 at 17:41
Tuesday, May 22, 2007 at 17:41
Hey ease it up Niffty, you only got to where you were going cause the brake pad fell out and you couldnt stop LOL the toyo would have made it and been able to pull up at the bottom. On a serious note that is a major design fault especially if you say the rotors are with in spec, and could have led to a serious injury or worse !!now if that was Toyota they would have had a recall no mater how old the vehicle LOL couldnt help myself. Regards Steve M
FollowupID:
502543
Follow Up By: Niffty - Tuesday, May 22, 2007 at 18:34
Tuesday, May 22, 2007 at 18:34
yep I agree.There is definity a design problem.I would take it further with Nissan but who would you need to approach?Is it worth the brain pain.But hey if it saves a life it would be worth it!Trying for a recall. Fingers crossed XXX.Any help appreciated.
Niffty
FollowupID:
502569
Follow Up By: Member - Stephen M (NSW) - Tuesday, May 22, 2007 at 18:45
Tuesday, May 22, 2007 at 18:45
Maybe Niffty if you get post on here for anybody thats had the same issue and print it up along with a piture of the pad that fell out and also a picture of the disc with (not sure what there called) one of those thingo's that measure the disc width and get a close up of the dial with the showing measurement. Have seen them in digital form as
well which might show up better in a picture then post it all off to Nissan Head Office as
well as email so you have a copy of it and see what sort of reply you get. In the event that it should ever happen to someone else or yourself again and (god forbid it doesnt) but if it lead to an accident you will have some proof that you sent everything to Nissan and they did nothing about it. BUT I can bet my life on it if you have fitted non genuine pads that will be there come back !!! Whats the bet. No doubt everyone including yourself with the same vehicle this is some thing that would be on the back of your mind whilst ever driving it around I know I would always be thinking of it coming out again. Regards Steve M
FollowupID:
502571
Follow Up By: Member - extfilm (NSW) - Tuesday, May 22, 2007 at 19:33
Tuesday, May 22, 2007 at 19:33
called a micrometer
FollowupID:
502584
Reply By: Charlie - Tuesday, May 22, 2007 at 17:48
Tuesday, May 22, 2007 at 17:48
I had the same thing happen with my 85 Patrol so it's not a new thing,I'm quite willing to admit there were some wear issues involved but no way should the pad be able to fall out, it has to be a design problem.
Regards Charlie
AnswerID:
241624
Reply By: Member - extfilm (NSW) - Tuesday, May 22, 2007 at 18:51
Tuesday, May 22, 2007 at 18:51
Hey Nifty,
When I was an apprentice I saw a few patrols come in with the same problem and my step father and one of his good friends also had Patrols. Both of thiers did it too so it was something I came to expect from these vehicles.
The problem is there are 2 shims (One for anti squeel and one for spacing) behind the brake pads. This gives at least another 2 mm behind each pad thus 4mm to hold the pads in position. And after many years alot of people including mechanics tend to either discard them, maybe the locating lugs fall off, Lose them or simply forget to put them back in hence throwing them over the left shoulder.
This was always a problem and now since I own a nissan, once they have your money they really don't care3. This is why I have decided to use this one as a tonka for the next 4 months before i take delivery of my new cruiser :)
AnswerID:
241642
Follow Up By: Graham & Lynne - Tuesday, May 22, 2007 at 19:40
Tuesday, May 22, 2007 at 19:40
Nifty
you are right track problem is to do with thickness of pads steel back thickness & shape of backing plate.Removing anti rattle shims has nothing to do with it.
FollowupID:
502585
Reply By: Godlike Chef - Tuesday, May 22, 2007 at 19:12
Tuesday, May 22, 2007 at 19:12
This happened to me about 3 weeks after i bought my GQ driving through Bunbury in the morniong traffic to get it to the mechanic for a service. Pulled up at the traffic lights heard a clunk and continued rolling forward nearly into the back of about 10 cars stopped at the red light!!!!!!! Definatly some was involved but didn't think this was supposed to be able to happen! Luckily for me i was only 500mtrs from the mechanic but still had to cross another set of traffic lights and a roundabout before i got there. since then i have replaced my pads when the y got to about just below half the wear and kept the old ones as spares cos you never know if it will happen again!!!! Oh yeah and the wheel bearings where fine.
AnswerID:
241650
Reply By: Andrew-rodeo - Tuesday, May 22, 2007 at 19:46
Tuesday, May 22, 2007 at 19:46
Some GQ have a minimum thickness of 18mm some are 24mm. Might want to
check that someone hasn't put the wrong discs on at some stage.
AnswerID:
241666
Follow Up By: Niffty - Tuesday, May 22, 2007 at 21:37
Tuesday, May 22, 2007 at 21:37
I have quoted the info from the Nissan service manual for front disc brake CL36VA .
Mine is a Maverick model 1993 but as we know this covers all Nissan GQ/Mavericks.So specification should match.The CL36VA Pad has a wear limit of 18.0 mm the AD20VC (rear) has a wear limit of 16.0 mm.I cant find any reference to 24 mm discs .The manual also states a pad limit of 2.0 mm ,
mine had at least 4 mm each side.All shims were in place other than the pad I lost. So what happened?
Niffty
FollowupID:
502648
Reply By: montana - Tuesday, May 22, 2007 at 21:30
Tuesday, May 22, 2007 at 21:30
shock horror,its common with toyota landcruisers,rear pads falling out when worn to low..but then there was that 79 series that had 4,500km on the clock.
AnswerID:
241711
Follow Up By: Niffty - Tuesday, May 22, 2007 at 21:51
Tuesday, May 22, 2007 at 21:51
Should not happen if the brakes are within Nissan or Toyota limits! Just plain neglect on the behalf of the manufacture ..Doesn't matter if you are not using genuine parts ,the system should still be safe.Its hard to see what brand pads came out. I will
check the backing plates tomorrow and see if there is a difference.
Niffty
FollowupID:
502657
Reply By: rooscoota - Wednesday, May 23, 2007 at 16:54
Wednesday, May 23, 2007 at 16:54
same here, have had it happen twice to me in the ol' MQ left side front both times.
AnswerID:
241870