*gentlydoesit Posted March 12, 2014 Report Share Posted March 12, 2014 So I'm trying to bleed an echo tr lever, splitter, maggie slaves using wd in a car orienrated pressure pot... Its not working! I heated the wd up after I sprayed it into the pot and left it over night to degas, there's no bubbles if I shake it or anything like that, but once its bled and tightened its like there's air/gas in there?! The pistons in the slaves only come out half way with the tps wound all the way in. No air can get in while the pot is pressurised so where am I going wrong? Any help appreciated. Cheers Quote Link to comment Share on other sites More sharing options...
dann2707 Posted March 12, 2014 Report Share Posted March 12, 2014 So I'm trying to bleed an echo tr lever, splitter, maggie slaves using wd in a car orienrated pressure pot... Its not working! I heated the wd up after I sprayed it into the pot and left it over night to degas, there's no bubbles if I shake it or anything like that, but once its bled and tightened its like there's air/gas in there?! The pistons in the slaves only come out half way with the tps wound all the way in. No air can get in while the pot is pressurised so where am I going wrong? Any help appreciated. Cheers Theres your issue unless you got your words mixed up? TPA wants to be wound all the way out not in. I've also read countless times on here that wd doesn't work and just gets past the seals though? Quote Link to comment Share on other sites More sharing options...
isitafox Posted March 12, 2014 Report Share Posted March 12, 2014 Just bleed it with water and anti freeze or mineral oil. Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted March 12, 2014 Author Report Share Posted March 12, 2014 Ah, now I wasn't going to use it but I've read loads that it does work think I saw it last in drstix's fanny lube thread, and a few others that I've forgotten. Yeah, I wound it in after I tightened the bleeds, I was hoping that'd be enough to get the pistons out, but not the case Poorly worded first post to be fair, should of said Just bleed it with water and anti freeze or mineral oil. I could do that with the rear that I'm attempting atm, but the front slaves are echo and they don't like a water bleed I've been told. I thought I'd put the same fluid in both front and rear, as I had a few tins of wd kicking around and no mineral oil I went for that. Quote Link to comment Share on other sites More sharing options...
dann2707 Posted March 12, 2014 Report Share Posted March 12, 2014 Surely if they don't like water, putting something less viscous in isn't going to help things? Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted March 12, 2014 Author Report Share Posted March 12, 2014 (edited) i ddon't know, hahah. I never got the reason they don't like it, I guessed at piston swelling. Edited March 12, 2014 by *gentlydoesit Quote Link to comment Share on other sites More sharing options...
dave33 Posted March 12, 2014 Report Share Posted March 12, 2014 Try with a normal bleed kit Quote Link to comment Share on other sites More sharing options...
Blake Posted March 12, 2014 Report Share Posted March 12, 2014 adam@tarty has done wd40 bleeds Quote Link to comment Share on other sites More sharing options...
Greetings Posted March 12, 2014 Report Share Posted March 12, 2014 Any bleeding problems are usually caused by incorrectly positioned master and slave cylinders. The general rule is that holes through which the fluid exits the cylinders are at their peaks. Quote Link to comment Share on other sites More sharing options...
dann2707 Posted March 12, 2014 Report Share Posted March 12, 2014 adam@tarty has done wd40 bleeds Adam could bleed a potato though. 5 Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted March 12, 2014 Author Report Share Posted March 12, 2014 Any bleeding problems are usually caused by incorrectly positioned master and slave cylinders. The general rule is that holes through which the fluid exits the cylinders are at their peaks. Was I right at this? Quote Link to comment Share on other sites More sharing options...
Perez Posted March 12, 2014 Report Share Posted March 12, 2014 Why in this forum there is a lot of trouble when comes to bleeding brakes? Just use mineral oil, cheap, safe, efective, and if you read that is what the brands advise. Quote Link to comment Share on other sites More sharing options...
Sam Nichols Posted March 12, 2014 Report Share Posted March 12, 2014 People choose not to use mineral oil because it's not as good as a water bleed. Water is also (practically) free. It's not often in life that better performance comes from the cheapest method! Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted March 12, 2014 Author Report Share Posted March 12, 2014 (edited) Its a fair call, I was just rushing things along and dont have any oil. Though I'm not sure if it was the content or the technique that failed I used this, it works perfect on car/motorbike brakes, clutches ect. It can also vacuum, so I could suck the fluid up Edited March 12, 2014 by *gentlydoesit Quote Link to comment Share on other sites More sharing options...
Ross McArthur Posted March 13, 2014 Report Share Posted March 13, 2014 Aaahh! There’s your problem! Try taking off those hush puppies and putting on some more acceptable footwear. They're offending the air around them so much it’s trying to get into your brakes. 8 Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted March 13, 2014 Report Share Posted March 13, 2014 Was I right at this? Nearly - but the bleed port on the lever isn't the highest point. Have you tried bleeding with a syringe? Quote Link to comment Share on other sites More sharing options...
HippY Posted March 13, 2014 Report Share Posted March 13, 2014 why would you bleed it with WD40? 2 Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted March 13, 2014 Author Report Share Posted March 13, 2014 Nearly - but the bleed port on the lever isn't the highest point. Have you tried bleeding with a syringe? I don't have a syringe yet, will probably get one now though. So the bleed needs to be higher than the brake line too? Quote Link to comment Share on other sites More sharing options...
Greetings Posted March 13, 2014 Report Share Posted March 13, 2014 What Adam said. Also, the positioning of slave cylinders is very important. Placing them in a bucket will not give you a good bleed unless you're lucky. Shoddy paint image: http://imgur.com/axyaiRX Carefully put them into a vice and use a syringe, not a pressure bleed. High pressure will not get the air out, you want to fill the brake up slowly so the air has a chance to escape. Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted March 13, 2014 Report Share Posted March 13, 2014 So the bleed needs to be higher than the brake line too? Ideally, yes. Same reason you should avoid inverted 'loops' when fitting hard brake lines to a car. Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted March 13, 2014 Author Report Share Posted March 13, 2014 (edited) What Adam said. Also, the positioning of slave cylinders is very important. Placing them in a bucket will not give you a good bleed unless you're lucky. Shoddy paint image:http://imgur.com/axyaiRX Carefully put them into a vice and use a syringe, not a pressure bleed. High pressure will not get the air out, you want to fill the brake up slowly so the air has a chance to escape. it was a bit hit n miss trying to get the slaves vertical, they rested about 20º off the vertical in the end, bleeds were uppermost though. Vice it is then. I've never had a problem with air on a car, but then I guess brake fluid is thicker and less likley to cavitate Ideally, yes. Same reason you should avoid inverted 'loops' when fitting hard brake lines to a car.hate inverters Makes sense bud, I'll have another go tonight. If that fails syringe it is Edited March 13, 2014 by *gentlydoesit Quote Link to comment Share on other sites More sharing options...
Lord Banks Posted March 13, 2014 Report Share Posted March 13, 2014 Try a 'cable' bleed, thats what I run and I never have any problems with air. 2 Quote Link to comment Share on other sites More sharing options...
Greetings Posted March 13, 2014 Report Share Posted March 13, 2014 it was a bit hit n miss trying to get the slaves vertical, they rested about 20º off the vertical in the end, bleeds were uppermost though. Vice it is then. You don't want them vertical though - angle them down ever so slightly. Quote Link to comment Share on other sites More sharing options...
*gentlydoesit Posted March 13, 2014 Author Report Share Posted March 13, 2014 Try a 'cable' bleed, thats what I run and I never have any problems with air.can you run that through a splitter You don't want them vertical though - angle them down ever so slightly.so piston chamber pointing downward a little? Quote Link to comment Share on other sites More sharing options...
Lord Banks Posted March 13, 2014 Report Share Posted March 13, 2014 (edited) My Trials naivety means I don’t even know what that means :$ Although my mate did try a ‘string’ bleed on his Vee’s but it didn’t work to well, fishing line is meant to be good. Edited March 13, 2014 by Lord Banks 2 Quote Link to comment Share on other sites More sharing options...
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