The Mitsubishi Pajero Owners Club®

ste2260 · Posted: Mon Mar 09, 2020 21:28 Post subject: Front disc replacement

Hi,
I need to replace the off side front disc, is this as simple as removing the caliper bracket and the hub bolts or is there more involved?

Car is a Mk2 3 ltr V6 24v LWB 1995 Shogun

Cheers,

Steve

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JPB · Posted: Tue Mar 10, 2020 3:01 Post subject:

There is more, yes. For one, you must replace both discs at the same time. Deoending upon whether your car has ABS, then you will (if ABS fitted) want to crack open the bleed nipples on the calipers to allow their pistons to be retracted without the risk of damage to the master cylinder, so then you're going to have to bleed the system.
If you're at all unsure of anything, then employ a suitably experienced mechanic to do the work.

JPB · Posted: Tue Mar 10, 2020 3:03 Post subject:

Should have mentioned the reason for there being a need to retract the caliper pistons: The new pads are obviously thicker than the ones from the old discs, even if they weren't all that old, so more room is needed for the added lining thickness.

ste2260 · Posted: Thu Mar 12, 2020 16:53 Post subject:

Thanks for the replies, I've since found a YouTube video on the subject and yes there is more involved but nothing that is not possible to do Very Happy

ste2260 · Posted: Sun Mar 15, 2020 13:24 Post subject:

All completed, hub to disk studs were bit of a *beep* to undo, but with enough brute force they came off Very Happy

I had to replace the disc as the caliper seized on, overheating and badly scoring the disc, on further investigation I found a heat fracture on the disc Sad

So it now has a brand new caliper, disc and brake pads Very Happy

I didn't replace the other disc as they were all replaced 5 years ago and showed no signs of wear, both sets of brakes pads were replaced though Very Happy

peteinchad · Posted: Sun Mar 15, 2020 13:46 Post subject:

So you are intending to run it with a new disc and a five year old disc?

Brave man!!!

ste2260 · Posted: Sun Mar 15, 2020 22:16 Post subject:

It's only done 20000 miles since all the discs were replaced, plus there is no sign of wear on the other disc (if there had been any wear on it then I would have replaced it), both sets of pads have been replaced

peteinchad · Posted: Mon Mar 16, 2020 5:25 Post subject:

Different discs will give different braking performance - and unbalanced braking.

You must have bought a pair of new ones - so I don't understand why you are not fitting the other new one.

ste2260 · Posted: Mon Mar 16, 2020 11:06 Post subject:

How many times do I have to tell you, the other disc IS NOT WORN, THERE IS NO WEAR ON IT, the disc I replaced was not damaged by general wear and tear but by a seized caliper, as I said before if had shown any wear at all I would have replaced it.
I appreciate that if you have a worn disc and a new disc you will get uneven braking as one set of pads wont be making full contact while the other is, but this disc is not worn !!!!!!!!!!!!!

peteinchad · Posted: Mon Mar 16, 2020 16:30 Post subject:

No need to shout - your car - your safety - your choice.

I assume you have checked that your new disc had the same coefficient of friction and the same hardness as your old one.

End of topic as far as I am concerned - you know best .... Obviously!

peteinchad · Posted: Mon Mar 16, 2020 17:06 Post subject:

https://www.jagbits.com/z04brakerotors.html

https://www.pistonheads.com/gassing/topic.asp?h=0&f=135&t=1499653

ste2260 · Posted: Fri Mar 20, 2020 12:16 Post subject:

At last you seem to get it Pete, it is my car Very Happy

peteinchad · Posted: Fri Mar 20, 2020 15:57 Post subject:

Your car - on the roads that you share with other people - with possibly unbalanced front brakes.

I "got it" all along - what happens under extreme braking if you swerve onto the other side of the road and hit someone else?

ste2260 · Posted: Sat Mar 21, 2020 14:55 Post subject:

FFS how many times do I have to repeat it THERE IS NO IMBALANCE OF BRAKING, please take your keyboard warrior skills and your opinions somewhere else as I am fed up of hearing your constant bleating !!!!!!!!

icehawk · Posted: Sat Mar 21, 2020 15:49 Post subject:

Its pretty common knowledge and good sense to change both discs at the same time,five years is a long time,could understand if they had been changed within a couple of months,i changed my discs a year ago and both show signs of wear.You asked for advice,members on here freely give there advice in good will,you either take it or leave it.pete was just pointing out that changing both discs at the same time was the way to go,and i agree with him,if it was me i would change both,but at the end of the day its up to you,no need to reply to the post just because you dont like a relevant and sensible comment.