D4T Posted April 18, 2008 Report Share Posted April 18, 2008 Hi all,I think i might try it, i know people say don't as the water as it will expand with heat yada yada but i'm sure i read somewhere people have had good results doing so. Any got any experience of bleeding a louise with water? was it a good or bad experience?I dont want people to comment unless they have some first hand experience, none of this in theory its a bad idea crap Cheers all! Quote Link to comment Share on other sites More sharing options...
craigjames Posted April 18, 2008 Report Share Posted April 18, 2008 dont, the heat issue for one, not a biggy unless you drag your break. but dot fluid and mineral OIL do have lubricating properties, need for the pistons to work properly. dont know how it will affect the seals either. bascially dont do it, why would you?! Quote Link to comment Share on other sites More sharing options...
Barbra Posted April 18, 2008 Report Share Posted April 18, 2008 Hi all,I think i might try it, i know people say don't as the water as it will expand with heat yada yada but i'm sure i read somewhere people have had good results doing so. Any got any experience of bleeding a louise with water? was it a good or bad experience?I dont want people to comment unless they have some first hand experience, none of this in theory its a bad idea crap Cheers all!You try it, then let us know how it goes? You don't seem to care about the 'Theory' so just go for it Quote Link to comment Share on other sites More sharing options...
Matthew_Gibson Posted April 18, 2008 Report Share Posted April 18, 2008 the water will boil! Quote Link to comment Share on other sites More sharing options...
mcinnes Posted April 18, 2008 Report Share Posted April 18, 2008 the water will boil!Surley it wont boil unless he drags his brake alot ? Quote Link to comment Share on other sites More sharing options...
Matthew_Gibson Posted April 18, 2008 Report Share Posted April 18, 2008 Surley it wont boil unless he drags his brake alot ?Ever felt your disc after a few front wheel moves, Its warm, enough to make the water become hot. And slowing down helps too!! Quote Link to comment Share on other sites More sharing options...
NVWOCI WVS Posted April 19, 2008 Report Share Posted April 19, 2008 Disc brakes turn kinetic energy into heat, when you gap to front, think how much kinetic energy is being transfered into heat as the bike stops from acelerating hard to pretty much stationary in a fraction of a second... That's a lot of heat energy! this in turn heats up the water in the system causing it to expand and ruin your brake. Just don't do it pretty much! Quote Link to comment Share on other sites More sharing options...
James Quigley Posted April 19, 2008 Report Share Posted April 19, 2008 It is possible.Local rider here has a louise lever, mono trial caliper and a water bleed. Seems to work, although long term i.e. more than a couple of rides it will probably bugger up the brake. Quote Link to comment Share on other sites More sharing options...
Tomm Posted April 19, 2008 Report Share Posted April 19, 2008 Disc brakes turn kinetic energy into heat, when you gap to front, think how much kinetic energy is being transfered into heat as the bike stops from acelerating hard to pretty much stationary in a fraction of a second... That's a lot of heat energy! this in turn heats up the water in the system causing it to expand and ruin your brake. Just don't do it pretty much!That's exactly the same basic process that happens in maguras or vee brakes though Quote Link to comment Share on other sites More sharing options...
James Quigley Posted April 19, 2008 Report Share Posted April 19, 2008 That's exactly the same basic process that happens in maguras or vee brakes though Good point, it will heat the rotor and maybe the pads, but to transfer the heat through the pad and piston into the fluid would take some doing I'd of thought. Especially since they do cool quite rapidly too. Quote Link to comment Share on other sites More sharing options...
AdamR28 Posted April 19, 2008 Report Share Posted April 19, 2008 Yeah... although with trials it's not really a problem.It will work, but it won't be ideal. Seal death is likely. Quote Link to comment Share on other sites More sharing options...
Al_Fel Posted April 19, 2008 Report Share Posted April 19, 2008 I had an old style louise FR on my zoo mod a few years ago with a water bleed and it was fine. like adam said it will work but its not ideal. Quote Link to comment Share on other sites More sharing options...
El Cristoff Posted April 19, 2008 Report Share Posted April 19, 2008 Whats wrong with a BB7? Quote Link to comment Share on other sites More sharing options...
Clownbike Posted April 19, 2008 Report Share Posted April 19, 2008 Whats wrong with a BB7?Derrr....you can't bleed a BB7 Chris! I know i'm funny Quote Link to comment Share on other sites More sharing options...
Greetings Posted April 19, 2008 Report Share Posted April 19, 2008 Yeah... although with trials it's not really a problem.It will work, but it won't be ideal. Seal death is likely.Yup, that's how my Hope died. Didn't have DOT and used water.Besides, what's the point of a water bleed? You do it on maggies to make them more responsive, there's no need to improve the responsiveness of a disc brake. If yours has lazy pistons, I suggest you have it serviced because there's bound to be something wrong with it. Quote Link to comment Share on other sites More sharing options...
Fishy Posted April 19, 2008 Report Share Posted April 19, 2008 Isn't it a high pressure system or something whereas the hs33's are low pressure? Or did i dream that? Quote Link to comment Share on other sites More sharing options...
psycholist Posted April 19, 2008 Report Share Posted April 19, 2008 The Louise I think is higher pressure than HS33's, but that's irrelevant to what fluid to use, all common liquids are pretty much incompressible at the pressures they're used at in brakes. The problem with disk brakes with low boiling point fluids is that the disk gets a lot hotter than a rim in use and there's a lot less insulation between the brake fluid and the disk than between the rim and the HS33 cylinder, so the chances of boilng the brake out while dragging it down a hill are much higher with water. Quote Link to comment Share on other sites More sharing options...
LukasMcNeal Posted April 20, 2008 Report Share Posted April 20, 2008 That's exactly the same basic process that happens in maguras or vee brakes though Vee brakes have water in them ? Quote Link to comment Share on other sites More sharing options...
Tomm Posted April 20, 2008 Report Share Posted April 20, 2008 Vee brakes have water in them ? Ignore the bit about water, smartarse Quote Link to comment Share on other sites More sharing options...
Muel Posted April 20, 2008 Report Share Posted April 20, 2008 To sum up the tread, just use oil, as there is no point in a water bleed. Quote Link to comment Share on other sites More sharing options...
Recommended Posts
Join the conversation
You can post now and register later. If you have an account, sign in now to post with your account.