Neil-NA Posted September 20, 2011 Share Posted September 20, 2011 So had an MOT today and no surprises the POS failed on - Rear fog not working, dash switch not lighting up either. Horn not working ( i replaced wheels, the new horn has 2 pins on the back, assuming one is an earth?) Emissions too high (putting 2nd cat back in) Front brake imbalance, now not sure what to do with this, is this likely to be sticking pistons? i have never noticed the brakes binding and they spin freely when the front is jacked up, what should i check for? Quote Link to comment Share on other sites More sharing options...
d-_-b Posted September 20, 2011 Share Posted September 20, 2011 Horn not working ( i replaced wheels, the new horn has 2 pins on the back, assuming one is an earth?) Sounds like that might be the culprit - though sure normally the earth connects to an adapter that sits between the wheel? (maybe your horn uses the ground via the wheel so the horn can have both the connectors on? Quote Link to comment Share on other sites More sharing options...
Abz Posted September 20, 2011 Share Posted September 20, 2011 Front brake imbalance, now not sure what to do with this, is this likely to be sticking pistons? i have never noticed the brakes binding and they spin freely when the front is jacked up, what should i check for? Sounds possible mate, did he mention which side causes more or less braking? Will help you narrow it down then? Quote Link to comment Share on other sites More sharing options...
absz Posted September 20, 2011 Share Posted September 20, 2011 You should of had the percentage of imbalance max is 25% depending on that you might get away with removing the pads cleaning the pins and pistons. also what was the emission printout did it fail on c0 levels ? Quote Link to comment Share on other sites More sharing options...
TT Paul Posted September 20, 2011 Share Posted September 20, 2011 horn earths through steering wheel im sure its a negative switching circuit as already said Quote Link to comment Share on other sites More sharing options...
Neil-NA Posted September 20, 2011 Author Share Posted September 20, 2011 The imbalance just says 31%, its a real bad copy so cant really read or understand it. Emissions were 0.525, its an NA with no cats. Quote Link to comment Share on other sites More sharing options...
Benjy Posted September 20, 2011 Share Posted September 20, 2011 My NA went through on saturday at 0.18 with no cat. What's the HC reading? I'd clean the pads up, clean the pad carrier and work the pistons on the calipers with some duck oil. If he's a nice tester he'll check it all before he clocks it on as a retest. Quote Link to comment Share on other sites More sharing options...
absz Posted September 20, 2011 Share Posted September 20, 2011 its only just failed the emissions 0.3 is the limit. as above give the pads a clean Quote Link to comment Share on other sites More sharing options...
Neil-NA Posted September 20, 2011 Author Share Posted September 20, 2011 HC was 105 ppm Quote Link to comment Share on other sites More sharing options...
absz Posted September 20, 2011 Share Posted September 20, 2011 HC are fine! Quote Link to comment Share on other sites More sharing options...
Benjy Posted September 20, 2011 Share Posted September 20, 2011 105 is still slightly high. Mine was 10ppm. It's not burning as efficiently as it should be. I'd recommend a new set of plugs, oil and filter change and a nice dose of fuel system cleaner. Quote Link to comment Share on other sites More sharing options...
mellonman Posted September 20, 2011 Share Posted September 20, 2011 brake refurb i think may be order jspec http://www.mkivsupra.net/vbb/showthread.php?107717-Refurbing-J-Spec-Brakes uk http://www.mkivsupra.net/vbb/showthread.php?244873-uk-brake-refurb Quote Link to comment Share on other sites More sharing options...
Dnk Posted September 20, 2011 Share Posted September 20, 2011 brake refurb i think may be order Quote Link to comment Share on other sites More sharing options...
Neil-NA Posted September 20, 2011 Author Share Posted September 20, 2011 Horn sorted, fog light sorted (had to rewire the whole thing) emissions hopefully sorted with the cat. My dad is going to try the brakes this weekend. Quote Link to comment Share on other sites More sharing options...
Neil-NA Posted September 20, 2011 Author Share Posted September 20, 2011 Oh and where can i get the caliper seal kits from? Quote Link to comment Share on other sites More sharing options...
Dnk Posted September 20, 2011 Share Posted September 20, 2011 (edited) Toyota Approx £40 - £50 each axle but might be a bit cheaper as thats the UK seal refurb kit price Pistons if you need any are approx £20 each, Toyota again or CW sells his own st/st version If i were you i'd do all four calipers and bleed through new fluid, Motul RBF600 is good stuff and not silly money either. Be carefull when tightening up the bleed nipples as they only need a nip, calipers are prone to cracking if over tightened Edited September 20, 2011 by Dnk (see edit history) Quote Link to comment Share on other sites More sharing options...
Neil-NA Posted September 20, 2011 Author Share Posted September 20, 2011 Toyota Approx £40 - £50 each axle but might be a bit cheaper as thats the UK seal refurb kit price Pistons if you need any are approx £20 each, Toyota again or CW sells his own st/st version If i were you i'd do all four calipers and bleed through new fluid, Motul RBF600 is good stuff and not silly money either. Be carefull when tightening up the bleed nipples as they only need a nip, calipers are prone to cracking if over tightened Cheers fella. Quote Link to comment Share on other sites More sharing options...
Dnk Posted September 20, 2011 Share Posted September 20, 2011 Cheers fella. No problem Get a spray can of brake cleaner from Halfords or local motor factors Quote Link to comment Share on other sites More sharing options...
Havard Posted September 20, 2011 Share Posted September 20, 2011 The imbalance just says 31%, its a real bad copy so cant really read or understand it. Emissions were 0.525, its an NA with no cats. Do you have a CAT? I have my old one from my NA if you need it (2nd) Quote Link to comment Share on other sites More sharing options...
Neil-NA Posted September 20, 2011 Author Share Posted September 20, 2011 Do you have a CAT? I have my old one from my NA if you need it (2nd) Yes i have the 2nd cat he said it only just failed on the emissions. Quote Link to comment Share on other sites More sharing options...
Konrad Posted September 20, 2011 Share Posted September 20, 2011 Heat up car properly before retest, not only water temperature, but also let oil to warm up properly (around 82 celsius) and it will pass emissions, had the same problem on my decatted Supra, but we revved her a bit till temperature got to over 80 celsius and second attempt was easy pass Quote Link to comment Share on other sites More sharing options...
jim Posted September 21, 2011 Share Posted September 21, 2011 I thought an na couldn't fail an emissions test as the engine isn't listed? Is that a myth? Quote Link to comment Share on other sites More sharing options...
Benjy Posted September 21, 2011 Share Posted September 21, 2011 Aha! Yes! The loophole!! Firstly you carry out a BET test. (Basic Emissions Test). Then it will fail a BET test and go into long test. That will then ask for vehicle specific information, which you can't select because it doesn't exist. Therefore it must only pass a pre '92 test. Next year, they're changing the reasons for refusal term to "catalytic converter missing". Arseholes! Quote Link to comment Share on other sites More sharing options...
Neil-NA Posted September 24, 2011 Author Share Posted September 24, 2011 Aha! Yes! The loophole!! Firstly you carry out a BET test. (Basic Emissions Test). Then it will fail a BET test and go into long test. That will then ask for vehicle specific information, which you can't select because it doesn't exist. Therefore it must only pass a pre '92 test. Next year, they're changing the reasons for refusal term to "catalytic converter missing". Arseholes! So with the results i posted should my car have passed?. I will refit the cat for the day and hope it passes, he said it was only just a fail, also found that one of the caliper sliders was siezed solid, took quite a while to free up but it is as good as now so with a bit of luck that will help the brake imbalance. Now all i have to do is work out why the fuse for the dash lights blew after we sorted the fog light (may just be a coincidence but i doubt it) Quote Link to comment Share on other sites More sharing options...
Benjy Posted September 24, 2011 Share Posted September 24, 2011 If it's an import, which being an NA, it is, VOSA hold no vehicle specific data, so they have to do the BET test, long test, pre 92 test. Which being the limit is 3.000, it should p!ss! Quote Link to comment Share on other sites More sharing options...
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