Eightpot Posted February 29, 2012 Share Posted February 29, 2012 Quick brakes question - Just checked over a 110 I picked up the other day and noticed it has a solid brake disk on one side, and a vented disk on the other! (front brakes) It's a '93 CSW - I presume someone has had to replace a disk, and saved a couple of pounds by getting a solid one, which would still work in a vented caliper, though I would of thought an earylish defender would have had solid disks anyway? Trying to figure out which type in need to buy to replace them its been through at least one MOT test like this as well... Quote Link to comment Share on other sites More sharing options...
mmgemini Posted February 29, 2012 Share Posted February 29, 2012 It wouldn't suprise me if it came out of the factory like that. If Ford can fit drums to one side and disc on the other on the front axle, If they can fit bonded linings on one side and rivited the other with drums . If a car can come out of the factory with the steering wheel on one side and the pedals on the other AND make the transporter....Then I can believe anything. By the way. The Ford with the disc drum set -up had been serviced twice. IIRC the callipers are also very different....Has it two or four pot callipers ? Ask your local dealer to do a check on the VIN No to see what should have been fitted. Quote Link to comment Share on other sites More sharing options...
Eightpot Posted February 29, 2012 Author Share Posted February 29, 2012 I think even darker forces than the factory have been at work on this car I just managed to find the info I need on this link from Rimmer Bros - http://www.rimmerbros.co.uk/content--name-Land-Rover-Defender-Introduction from June '93, vented discs and rear discs were fitted as standard, so at least I know what to go shopping for now. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted February 29, 2012 Share Posted February 29, 2012 Good link. Be also aware that some late 200Tdi station wagons, some may have been County's, were factory fitted with rear disc brakes. There was a guy from Washington that was on LRO many years ago with such a build. Have you, well I know you will, checked to non vented calliper to see that it is a vented calliper. AFAIK. there are four front brake options, there might be more. Two pot non vented Two pot vented Four pot non vented Four pot vented. Quote Link to comment Share on other sites More sharing options...
western Posted February 29, 2012 Share Posted February 29, 2012 AFAIK front calipers on all 90/110/Defenders are 4 piston & either for solid or vented disc. rear calipers are 2 piston type. Quote Link to comment Share on other sites More sharing options...
ejparrott Posted February 29, 2012 Share Posted February 29, 2012 A friend converted his E reg 110 from solid disks to vented. It required new disks, new callipers, new bolts. Nothing else was changed. Quote Link to comment Share on other sites More sharing options...
western Posted February 29, 2012 Share Posted February 29, 2012 i converted my '89 to front vented disc & the correct calipers all where genuine parts. Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted February 29, 2012 Share Posted February 29, 2012 Front calipers are all 4 pot. Vented calipers are the same as the non vented BUT the vented caliper has a spacer between the 2 caliper halfs to increase the width of the caliper, making space for the wider, vented disc. Quote Link to comment Share on other sites More sharing options...
Retroanaconda Posted February 29, 2012 Share Posted February 29, 2012 The above is correct. Same disc diameter, same pads, same pistons, just a spacer in the caliper Vented became standard fit on 110/130 when the rear discs came in, approximately at the start of 300Tdi. 90s retained the solid disc, though vented was an option. Quote Link to comment Share on other sites More sharing options...
western Posted February 29, 2012 Share Posted February 29, 2012 Vented front disc/calipers were also fitted to Heavy Duty spec Defender 110 & 130. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted March 1, 2012 Share Posted March 1, 2012 vulcan bomber Retroanaconda Yes I'll agree with both of you. Quote Link to comment Share on other sites More sharing options...
GBMUD Posted March 1, 2012 Share Posted March 1, 2012 A friend converted his E reg 110 from solid disks to vented. It required new disks, new callipers, new bolts. Nothing else was changed. I am about to do this conversion on my 90 (Disco axles). I have discs, callipers and pads, what different bolts will I need? Chris Quote Link to comment Share on other sites More sharing options...
ejparrott Posted March 1, 2012 Share Posted March 1, 2012 I don't think you'll need any different bolts, but we ordered new calliper mounting bolts as a matter of course. Being a safety critical part, and not knowing whether the old ones would come out, we played it safe - its not like they're expensive. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted March 1, 2012 Share Posted March 1, 2012 I don't think you'll need any different bolts, but we ordered new calliper mounting bolts as a matter of course. Being a safety critical part, and not knowing whether the old ones would come out, we played it safe - its not like they're expensive. Hmmm....What threads would be used on an E reg 90. UNF or metric ? The later ones with the vented callipers have metric threads. Bolts are dealer only and expensive each. I carry four in stock at home. Bolt head require a 13mm 12 socket. Thread size IIRC is 12mm X 1.25 Quote Link to comment Share on other sites More sharing options...
vulcan bomber Posted March 1, 2012 Share Posted March 1, 2012 Hmmm....What threads would be used on an E reg 90. UNF or metric ? The later ones with the vented callipers have metric threads. Bolts are dealer only and expensive each. I carry four in stock at home. Bolt head require a 13mm 12 socket. Thread size IIRC is 12mm X 1.25 the bolts arnt dealer only. The bolt size you'll need depends on the swivel housing, not the caliper. Quote Link to comment Share on other sites More sharing options...
Sirocco Posted March 1, 2012 Share Posted March 1, 2012 Is it worth going vented? I have a pair of spacers sitting around to fit 300tdi calipers and cant decide wether to fit them to my 90 or not. Not much mud plugging, just lanes and overland trips G Quote Link to comment Share on other sites More sharing options...
landy V8 Posted March 1, 2012 Share Posted March 1, 2012 I changed to Vented and converted my rear Salisbury to disks on my 89 110 and it made a hell of a difference in stopping,but thats due to changing to rear disks. You won't get any difference in stopping power with changing to vented as it's still the same surface area.The difference is in heat dissipation.You can work the brakes harder eliminating some of the brake fade. They would be a good upgrade on say,a heavy laden truck or someone using trailers a lot. Quote Link to comment Share on other sites More sharing options...
ejparrott Posted March 2, 2012 Share Posted March 2, 2012 Hmmm....What threads would be used on an E reg 90. UNF or metric ? The later ones with the vented callipers have metric threads. Bolts are dealer only and expensive each. I carry four in stock at home. Bolt head require a 13mm 12 socket. Thread size IIRC is 12mm X 1.25 IIRC they were UNF on this 110, but it does depend on what swivels are fitted to the axle, not the age of the vehicle or the type of calliper. They are avaliable from all good parts suppliers, Paddocks, Craddocks, LR Series etc. They are not dealer only parts. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted March 2, 2012 Share Posted March 2, 2012 AFAIC Paddocks, Craddocks, LR Series are dealers. I certainly can't buy them at any of my local fastener suppliers so dealer only. Quote Link to comment Share on other sites More sharing options...
GBMUD Posted March 2, 2012 Share Posted March 2, 2012 Is it worth going vented? I plan to go vented on my 90 because it is an auto and so has little or no engine braking. Since I enjoy places like the Pyrenees and the Alps downhill braking is something I need to consider, especially with a loaded truck!! If driven hard on twisty roads I could get the brakes on my old 90 (discs all round) to stop working entirely due to heat build-up! It only happened once, then I was more careful! Chris Quote Link to comment Share on other sites More sharing options...
ejparrott Posted March 4, 2012 Share Posted March 4, 2012 AFAIC Paddocks, Craddocks, LR Series are dealers. In my book, 'dealers' means Land Rover, Paddocks et al are parts suppliers, so it depends on what the OP meant. The bolts are UNF or Metric depending on age of hubs, with 12-spline heads. They are not unique to Land Rover at all, we have just assembled some gas turbine casings for a customer with the same style of bolt, you should be able to get them from top end engineering sources, but why bother when you can get them from Paddocks when you buy your disks and callipers. Quote Link to comment Share on other sites More sharing options...
Snagger Posted March 6, 2012 Share Posted March 6, 2012 I plan to go vented on my 90 because it is an auto and so has little or no engine braking. Since I enjoy places like the Pyrenees and the Alps downhill braking is something I need to consider, especially with a loaded truck!! If driven hard on twisty roads I could get the brakes on my old 90 (discs all round) to stop working entirely due to heat build-up! It only happened once, then I was more careful! Chris You would benefit, then. Mudpluggers would suffer from vented discs as they fill up with mud and cause disc corrosion and vibration. So, it depends on your circumstances, not just the vehicle type. Quote Link to comment Share on other sites More sharing options...
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