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Thread: Disc Brakes

  1. #1
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    Disc Brakes

    Got this today.
    Got home at 4.00pm
    This is as far is I got.




  2. #2
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  3. #3
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    To those who may follow.
    This is what I know so far.
    The 4 pot caliper is a Zeus special, but I have heard it is a copy of a Volvo caliper with landrover pistons fitted.
    Disc pads supplied are Borg and Beck BBP1011.
    The best I could come up with in local numbers is DB521 which fits the rear of a E type Jag and a few other things.
    The caliper set up reminds me of the rear pads in the back of the 130 defender which I used to own, but just abit smaller.
    The pads are pined in the same way as a defender too.
    I have not read the instructions yet.
    It all looks straight forward so far, but how the disc is mounted on the hub looks interesting, time will tell.
    I have heard stories some grinding and hand fitting may be required, but I cannot see where yet.

  4. #4
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    Local replacement disc pads, just for plain jane soft items is 75 dollars a set.
    What I am expecting is this.
    Brake performance to be about the same.
    The reason is the 101 drum brakes are self energising and therefore take less pedal effort than a disc brake set up.
    The disc calipers being four piston/pot items should give plenty of piston area for the brake fluid to act on, and so at the end of the day could work out equal.
    The disc pads are smallish for the size of the disc, which is a reasonable size , but is not a ventilated design.
    There is little room for anything inside a 101s wheel with that big CV joint housing sitting in the middle so most likely a ventilated type disc wouldnt fit.

    The main reason for going for disc brakes on a 101 is not so much braking performance, but reduced mantainace.
    101 drum brakes when adjusted correctly and in good order ,work OK.
    keeping the brakes in good order and adjusted is the hard part.
    Front brakes on a 101 need regular adjustment and shoe wear tends to be high.
    It should be noted only 1mm of wear is allowed on 101 brake drums.
    The hub oil seals tend to be a bit touchy, the twin front wheel cylinders are a low point in the brake system, so the alloy cylinders tend to pit and leak if water enters the system with creek crossings etc.
    The disc set up should be more self cleaning of dirt, mud and water.
    Ron

  5. #5
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    Zeus 101 Disc Brake Kit


    One issue is access to the plugs to fill up the CV joint housings.
    The caliper makes access hard and instead of easy square lug plugs which you undo with a shifter, Allen head plugs are supplied.

  6. #6
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    Edit* Turns out it was worth getting up at 3am. Just checked again and the money's gone out for shipping Around $115 which is very reasonable.

    Does it look like the kit will fit without any mods to the calipers to get the wheels on?
    Last edited by stuee; 11th May 2013 at 04:19 AM. Reason: Good news!

  7. #7
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    The more I look at it, the more I see everything is a very tight fit.
    Looking at the way its done and why its done a certain way.
    Its a wonder it was ever worked out at all.
    Disc brakes on this wheel stud pattern is only usually done on 20 inch wheels and not 16 inch.( the big hub and big CV with small wheel ID)
    Mine cost about $1300 aust which I though was good and many thanks to another Aulro member to organise it all for me.
    The instructions are not very clear on the bolt up of the disc assy to the to landrover hub using the special threaded studs supplied.
    I am thinking if a brass 90 degree fitting can be screwed in the CV housing oil level plug hole to improve access , as my CVs do leak a little bit.
    I didnt allow for the need to purchase new hub oil seals so the idea of mine to get this all fitted up and done this weekend will not be happening.
    I purchase my hub oil seals from AJ as he supplies a good quality double lip affair which is much better than anything I can purchase locally and that will take a few working days to happen.
    I also have another problem which is normal for 101s these days is the top shock rubber bushes aging and flogging out.
    AJ can not supply the standard items anymore.
    New ones can be made in a lathe from solid rubber or ones for TK series bedford??? fitted.
    The good news is AJ can do polyuathane replacements at a price ( I think its worth it) which should last longer.
    I will go as far as I can this weekend with it all.

  8. #8
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    According to the Aulro member who was dealing with Zeus for me, found they were slow to deal with.
    We waited for the parts to be made despite the fact we were told the brake kits were in stock ready to go.
    All the main parts are CNC machined from solid .

  9. #9
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    Discs are 12.5mm new with a wear limit of 11mm.
    The 101s original wheel studs will need to come out.
    They are pressed in and then the area around the back of the stud is swaged/pressed so they dont come lose at manufacture.

  10. #10
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    Pics! Then post up the easy way to do everything once your done!


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