muss12 Posted June 10, 2014 Share Posted June 10, 2014 As per the title I have a 90 300tdi with solid disc and pads, my calipers are shot, now I do a lot of towing and wondered if its worth changing to vented disc and pads? If so is it a straight forward job? Quote Link to comment Share on other sites More sharing options...
Litch Posted June 10, 2014 Share Posted June 10, 2014 Very easy to do. Perhaps not so necessary on a vehicle that is rarely pushed to the limits but definitely if you do a lot of towing. Because I had recently rebuilt my callipers and knew they were 100% I did mine by buying a conversion kit which is more or less just a spacer that fits between the two halves of the calliper, add a pair of vented discs and away you go. If you are replacing your callipers then you just need to identify vented callipers using the same brake-pipe connections (mine are single pipe). I did my front callipers 8-years ago but last year I did a bit of an overhaul and replaced the rear callipers, F&R discs + pads. Used BP vented/drilled/slotted discs on the front & BP drilled/slotted discs on the rear matched to Mintex pads. All I can say is that the stopping power is awesome!!! Quote Link to comment Share on other sites More sharing options...
muss12 Posted June 10, 2014 Author Share Posted June 10, 2014 Thanks for the reply Litch, can you remember where you got the kit from? Quote Link to comment Share on other sites More sharing options...
Bowie69 Posted June 10, 2014 Share Posted June 10, 2014 If your calipers are shot (worn where the pads sit) I wouldn't be using a kit to space them out, I would just buy the proper vented disc compatible caliper. 1 Quote Link to comment Share on other sites More sharing options...
muss12 Posted June 10, 2014 Author Share Posted June 10, 2014 My mate said there not in a good state, only problem is finding the right bloody ones been looking all evening and some pictures don't show the pipe connection or tell you the size Quote Link to comment Share on other sites More sharing options...
western Posted June 10, 2014 Share Posted June 10, 2014 Defender vented calipers are single line only, standard 3/16 inch dIameter pipe with M10 X 1mm thread IIRC. Post 1991 defenders used a common range of brake components. http://www.paddockspares.com/stc1266-front-brake-caliper-new-rh-vented-from-la930456.html http://www.paddockspares.com/stc1267-front-brake-caliper-new-lh-vented-from-la930456.html Quote Link to comment Share on other sites More sharing options...
muss12 Posted June 10, 2014 Author Share Posted June 10, 2014 Thanks Ralph just the info I needed 1 Quote Link to comment Share on other sites More sharing options...
jbs Posted June 11, 2014 Share Posted June 11, 2014 I've got vented calipers/disks etc. on my 90-I did do a lot of towing at one time and it did make a difference, It's a very simple thing to do and one thing I did do was convert my caliper pistons over to stainless steel pistons from Zeus engineering, they've been on there for 8 years now and are still like brand new-did the front and rears together, I got all of my parts from Craddock's and fitted it all together-It's a bolt on jobby John Quote Link to comment Share on other sites More sharing options...
muss12 Posted June 11, 2014 Author Share Posted June 11, 2014 Thanks John, might as well do the wheel bearings as well while its all off, I'll have a look at the stainless steel pistons tonight, thanks again 1 Quote Link to comment Share on other sites More sharing options...
Litch Posted June 11, 2014 Share Posted June 11, 2014 The kit came from Scorpion who of course are no more. Quote Link to comment Share on other sites More sharing options...
GW8IZR Posted June 11, 2014 Share Posted June 11, 2014 What is the difference pre / post `91 ? Quote Link to comment Share on other sites More sharing options...
western Posted June 11, 2014 Share Posted June 11, 2014 not much, threads should all be metric on both, mainly a common range of parts used throughout the 90 & 110 range to make production line easier. post 91 the brake fluid low level float cap on master cylinder, early PDWA switch deleted, common G or prv valves fitted. Quote Link to comment Share on other sites More sharing options...
GW8IZR Posted June 11, 2014 Share Posted June 11, 2014 Fairly sure I have 110 calipers on my very early 90 axle but it was ten or so years ago and I'd like to refurb them - I can't see any reason why later 110 wouldn't fit but have been caught out by disk setback before, would be nice to be sure before I buy the bits. Quote Link to comment Share on other sites More sharing options...
pete3000 Posted October 11, 2014 Share Posted October 11, 2014 Dragging up this thread from June, I started in earnest on swapping my 110 front solid discs out for vented and replacing my "seen better days calipers" which have been doing mist of the braking effort on said 110. I have got quite a way through, replacing the discs onto the old hubs, adapting some new brake mud shields to fit, then came a head sratcher. The caliper bolts up nicely, the spacing on the disc is splendid, but..... the hub rear face behind the wheel studs rubs enough on the caliper body, to stop the hub turning. There is I reckon, probably about 1-1.5 mm of interference, I am thinking of breaking it down and shoving the hub in the lathe and skimming 1mm taper off the rear of the hub on the outer 5mm or so. Thinking is the rear is not holding the studs captive and there is 2-2.5mm until the stud face is touched. I don't really want to be milling the casting of the caliper. Any other ideas? Pete Quote Link to comment Share on other sites More sharing options...
cackshifter Posted October 12, 2014 Share Posted October 12, 2014 As it's 300 tdi you just need the 300tdi 110 set up; the calipers are the same with a spacer between, the disc is a bit fatter. Apart from that, it's all the same. They are both 46mm pistons with the same pad so the braking effort is exactly the same. AFAIK it was a factory fit option anyway. I did this about 4 years ago, no problems. I certainly feel more confident towing, but I never had any problems before. If you have to get new calipers and disks, go for it as it's relatively little extra cash. Quote Link to comment Share on other sites More sharing options...
pete3000 Posted October 12, 2014 Share Posted October 12, 2014 it's 110 series3/110 swapover or 86/87 as far as I can get it. It's been a pain geting the oil seals for the correct year as it was on the crossover of series3/110. Originally a 2.5 NAD it was running solid discs at the front and drums at the back. Everything else looks ok it's just the now thicker caliper body is being caught by the hub inner face. I may bite the bullet and get it apart again to fit the longer studs. I've since found the rtc3511 oil seals fit's front and back. Quote Link to comment Share on other sites More sharing options...
pete3000 Posted October 20, 2014 Share Posted October 20, 2014 Sorted it, a light rub with the file, 0.5mm on the casting and 0.5mm on the hub, has allowed the hub to revolve with 1mm clearance. The components used if anyone is interested were SEB500460 and SEB500470 calipers 2x LR017952 discs vented 4x AFU1031 caliper bolts 1x FRC6403 shield 1x FRC6402 shield Quote Link to comment Share on other sites More sharing options...
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