Pastycrimper Posted November 24, 2011 Share Posted November 24, 2011 Continuing from one of my older posts, I've finally saved the cash for a set of four tyres. I assumed the old ones would fail the MOT as the front left outer edge is way more worn than any of the others though it just passed with that tyre being just legal. Anyway the intention is to do the tracking immediately after balanced new tryes have been fitted. Is there anything else likely to cause such significant wear to just this tyre? I was going to replace like for like - BFG AT 235/85/R16 but was tempted with the 265/75/R16 equivalents.....any opinions between them? Also I've read elsewhere that the BFG Mud Terains of the same size aren't really that noticeable on road/motorway driving either with massively increased wear and noise. The vast majority of my driving is on roads but on the farm throughout winter the fields get really muddy and our SIII with mud tyres on is epic at tackling the wet field. How long would Mut Terraiins last even if driven mainly on the road or is this just stupid and stick with the ATs given that I'm 95% on roads? Quote Link to comment Share on other sites More sharing options...
landroversforever Posted November 24, 2011 Share Posted November 24, 2011 I don't know what the new BFG Mud pattern is like on the road, but my old style ones do hum/buzz when on the road. The other consideration as you spend most of your time on road would be grip. My BFGs slide easily in the dam/wet, I would assume the ATs would be much better in that respect. Quote Link to comment Share on other sites More sharing options...
mmgemini Posted November 24, 2011 Share Posted November 24, 2011 Before you check your tracking. Make sure the drag link is the correct length. Not to within a mm but spot on. Quote Link to comment Share on other sites More sharing options...
tacr2man Posted November 24, 2011 Share Posted November 24, 2011 1st the wear on 1 tyre left outer edge , this is unlikely down to tracking (ie toe in) as you would expect that both outer edges would wear(to much toe in ) 2nd BFG the old MT had very good wear on road , slightly less wet grip than AT but then it handles deep standing water better than AT It is noisier at speed eg over 60 noticeable in a V8 petrol cant say if you would hear it that early in a dismal ? But you can drive quite happily on road with them (I do) as its a small price to pay for much better grip off road . The newer pattern are supposed to be quieter , I have just put a set on my 90 but not had a trip with them yet . the 235/85 r 16 are slightly taller than the 265/75 which are obviously slightly wider . So it depends what you want ? Quote Link to comment Share on other sites More sharing options...
Pastycrimper Posted November 24, 2011 Author Share Posted November 24, 2011 Interesting! Regarding particular wear on the front left outer tread - from above incorrect drag link adjustment just affect the one wheel? I also figured tracking would affect both sides but it is definitely my front left that has noticeably worn more. Could this just be balancing on an old tyre/wheel. Obviously I dont want my new tyres to wear unevenly. Regarding ATs vs MTs, I hadn't considered that the MTs are more slippy on wet roads and as I said most of my driving is on roads so thinking I'll stick with ATs as these have been great to date. Regarding size/profile - By my calcs I figured they're pretty much the same overall diameter (235/85s being very very slightly taller by less than 0.1inch) which is why I was tempted to go for the wider profile thus giving more overall grip. That said, the 265/75s don't seem that much wider - presumably my turn stops/overall turning circle wont be affected by the 265/75s.... or are they significantly wider enough to alter these? Cheers again Quote Link to comment Share on other sites More sharing options...
Pastycrimper Posted November 24, 2011 Author Share Posted November 24, 2011 Crikey another thought - I've got Steel Black Wolf rims which I think are 16 x 6.5 - will 265/75s fit on these or will I need to order wider rims? Quote Link to comment Share on other sites More sharing options...
Boro Posted November 24, 2011 Share Posted November 24, 2011 Dont know whether these would be of any interest to you http://forums.lr4x4.com/index.php?showtopic=72612 but not that far from you Quote Link to comment Share on other sites More sharing options...
landroversforever Posted November 24, 2011 Share Posted November 24, 2011 Crikey another thought - I've got Steel Black Wolf rims which I think are 16 x 6.5 - will 265/75s fit on these or will I need to order wider rims? I have wolf rims on my truck with 255/85R16s on them, as they are only 10mm wider they should be good Quote Link to comment Share on other sites More sharing options...
tacr2man Posted November 24, 2011 Share Posted November 24, 2011 265 on 6.5 Ok but not ideal on 5.5 (standard LR steels ) Quote Link to comment Share on other sites More sharing options...
Pastycrimper Posted November 24, 2011 Author Share Posted November 24, 2011 265 on 6.5 Ok but not ideal on 5.5 (standard LR steels ) Hmm most 265s I see are on 16x7 rims.....whats the ideal rim for a 265? Quote Link to comment Share on other sites More sharing options...
western Posted November 25, 2011 Share Posted November 25, 2011 7 or 8 inch wide would be better.my 255 MT's are on XD/Wolf steels. Quote Link to comment Share on other sites More sharing options...
LandyLee Posted November 25, 2011 Share Posted November 25, 2011 which tyre wears due to roundabouts ?I think its the nearside isn't it ? Tracking error will cause wear on either outer or inner edges depending on either toe out or toe in Quote Link to comment Share on other sites More sharing options...
danebrewer Posted November 30, 2011 Share Posted November 30, 2011 which tyre wears due to roundabouts ?I think its the nearside isn't it ? Tracking error will cause wear on either outer or inner edges depending on either toe out or toe in I was going to say the same thing, roundabouts cause wear on the front left tyre, it'd be the same for any car Quote Link to comment Share on other sites More sharing options...
reb78 Posted November 30, 2011 Share Posted November 30, 2011 I was going to say the same thing, roundabouts cause wear on the front left tyre, it'd be the same for any car Surely you'd have to spend a lot of time going round roundabouts to see any serious wear because of them?! Quote Link to comment Share on other sites More sharing options...
CwazyWabbit Posted November 30, 2011 Share Posted November 30, 2011 Surely you'd have to spend a lot of time going round roundabouts to see any serious wear because of them?! Some have that extra grip stuff on them, also enthusiastic use of a roundabout will load the tyre quite a lot....... I'm suffering the same wear on my 110... I need to do some swapping about me thinks Quote Link to comment Share on other sites More sharing options...
Diff Posted December 1, 2011 Share Posted December 1, 2011 Hmm most 265s I see are on 16x7 rims.....whats the ideal rim for a 265? 265s should be fitted to rims between 7 and 8 inches wide. They will physically fit on slightly narrower rims BUT they would be fitted against the tyre manufacturers recommendations, which could cause 'issues' with the insurance etc if the worst should happen. Regards, Diff. Quote Link to comment Share on other sites More sharing options...
Pastycrimper Posted December 2, 2011 Author Share Posted December 2, 2011 Thanks....I'll settle for my current rims and stick with 235s. Regarding front left tyre wear - I had never considered the roundabout issue which makes sense. It really is only my front left which is so worn. However I also ponder what mmgemini said: Before you check your tracking. Make sure the drag link is the correct length. Not to within a mm but spot on. As the drag link arm only goes to the front left this also sounds sensible - if the trcaking was spot on but the drag link was out would this cause wear on the one tyre??? Quote Link to comment Share on other sites More sharing options...
landroversforever Posted December 2, 2011 Share Posted December 2, 2011 Surely if the tracking is set properly (with the track rod) the the drag link length is only going to effect where the steering wheel is in relation to the wheels? If the tracking is set right, its going to go straight but just have the steering wheel offset slightly? Quote Link to comment Share on other sites More sharing options...
mmgemini Posted December 2, 2011 Share Posted December 2, 2011 The drag link affects the left front wheel. Even if the tracking is spot on and the drag link isn't then the left front wheel runs out.The steering box self centers and you have the left wheel wrong. Quote Link to comment Share on other sites More sharing options...
landroversforever Posted December 2, 2011 Share Posted December 2, 2011 But you would turn to keep it going straight wouldn't you? If the track rod is set correctly, the wheels will be parallel (ignoring any toe in/out you may want), so if the box self centres you're going to turn so you would keep it going straight by turning the steering wheel. Not going to cause any excess wear on the tyre as far as I can see? Quote Link to comment Share on other sites More sharing options...
voevod Posted December 2, 2011 Share Posted December 2, 2011 I've run AT2s for a couple of years now and am quite disappointed by them to be honest, their grip in the wet was never very good. I also have quite bad wear on my nearside front, but after measuring drag link (is it 924mm?), I'm going to attempt the tracking with the string method as shown on here somewhere. Quote Link to comment Share on other sites More sharing options...
western Posted December 2, 2011 Share Posted December 2, 2011 drag link nominal = 924mm track rod nominal =1230mm both as a start point then adjust to get tracking spot on. Quote Link to comment Share on other sites More sharing options...
landroversforever Posted December 3, 2011 Share Posted December 3, 2011 But you would turn to keep it going straight wouldn't you? If the track rod is set correctly, the wheels will be parallel (ignoring any toe in/out you may want), so if the box self centres you're going to turn so you would keep it going straight by turning the steering wheel. Not going to cause any excess wear on the tyre as far as I can see? The drag link affects the left front wheel. Even if the tracking is spot on and the drag link isn't then the left front wheel runs out.The steering box self centers and you have the left wheel wrong. Thought while I was out... its not the steering box that does the self centering, its the Castor angle of the front axle. So with the track rod set correctly, the drag link is going to have no affect on tire wear. only on the position of the steering wheel in relation to the direction of the truck and it may effect the amount of steering lock one way. Quote Link to comment Share on other sites More sharing options...
Pastycrimper Posted December 3, 2011 Author Share Posted December 3, 2011 Thought while I was out... its not the steering box that does the self centering, its the Castor angle of the front axle. So with the track rod set correctly, the drag link is going to have no affect on tire wear. only on the position of the steering wheel in relation to the direction of the truck and it may effect the amount of steering lock one way. Its an interesting debate.Surely if the tracking is set such that the wheels are perfectly aligned then they are both in unison. Therfore the drag link should have no effect - it rotates the wheels as a unison pair. However if you imagine two perfectly aligned wheels set by the tracking rod (stationary) and way overadjusted the drag link then the front left wheel is going to try to start steering whereas in this situationj the drag link should be free of any external forcing- the only external forcing on the drag link should occur during turning i.e. steering). Ralph thanks for the measurements - I wonder if they are "from the factory spec". Either way they're a good starting point - we adjust all from there. Given that wheel alignment (tracking) is so precisely done using laser tracking equipment I would start there and then adjust the drag lin such that there is the same play either side of "centre". I'm not quite sure even what centralisation is!?? A steering wheel is a wheel surely.....the only diffenrence would be the angle of the Landrover logo stuck on the wheel relative to the horizontal)....ie if the steering wheel was a simple circle attached by 3 equidistant (60 degree) spokes there is no top or bottom (or centre)...... Quote Link to comment Share on other sites More sharing options...
landroversforever Posted December 3, 2011 Share Posted December 3, 2011 the front left wheel is going to do nothing... You will only loose steering lock in one direction! and the steering wheel will not be pointing straight ahead. The drag link only imparts a force on the left wheel when the steering wheel is turned. With the wheels correctly aligned the drag link is doing nothing when not turning (ignoring hitting potholes ). I adjusted mine after the new sumo bar using a bit of 4x2 across each hub and using a tape measure measure infront and behind the axle . got it to within a mm doing that and its been fine no noticable wear or bad feel. Quote Link to comment Share on other sites More sharing options...
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