Change to DOT3 brake fluid if you are using DOT5. DOT5 is more compressible and will lead to a spongy and/or low brake peddle.
http://www.advancepetro.com/differentbrakefluid.htm
http://www.advancepetro.com/differentbrakefluid.htm
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Could, but I had a very firm pedal before with 5 in it. So I don't think it would be the cause now. Either still has air in it, or shoe adjustment, or both.Change to DOT3 brake fluid if you are using DOT5. DOT5 is more compressible and will lead to a spongy and/or low brake peddle.
http://www.advancepetro.com/differentbrakefluid.htm
Wrong ! Dot 5 is not compressible at all ! Remember your science class's, liquids by their nature are not compressible. Do you honestly think the manufacturers would use something that could compress in any brake system ? If they are frothed up with air then it can compress ( as air compresses) . That is why it is not used in anti-lock brake systems. The air would settle out within hours though.Change to DOT3 brake fluid if you are using DOT5. DOT5 is more compressible and will lead to a spongy and/or low brake peddle.
http://www.advancepetro.com/differentbrakefluid.htm
Finding multiple articles from manufacturers stating that the compression of DOT 5 is a problem, thus 5.1 was designed.Wrong ! Dot 5 is not compressible at all ! Remember your science class's, liquids by their nature are not compressible. Do you honestly think the manufacturers would use something that could compress in any brake system ? If they are frothed up with air then it can compress ( as air compresses) . That is why it is not used in anti-lock brake systems. The air would settle out within hours though.
Also who ever wrote that article is a moron ! DOT 5 not used in race cars. REALLY ! Some of the most expensive performance cars come with DOT 5. Ever heard of Lamborghini ? or Porsche ?
And the kicker, DOT 5 cannot handle heat ! Are you kidding me ! What do you think is the major draw of Silicone ? The ability to handle HEAT ! This kind of crap really makes me angry !!! People who write misleading or outright lies in articles should be taken out side and shot !
Air entrainment was the problem not the fluid. In a sealed system there is no problems.Finding multiple articles from manufacturers stating that the compression of DOT 5 is a problem, thus 5.1 was designed.
It is a Marey 5L.Are you going with an ecotemp unit for hot water ?
Something to consider when going to bigger wheel cylinders is that the master cylinder and wheel cylinder bore size's need to match. If one or the other is larger you will never get the correct pedal feel or stopping power. There is a good article in The Horse Backstreet Choppers on this in regards to building a custom motorcycle brake set up. My 2 cents!Bit of catching up to do here. Had a discussion Friday evening about the brake situation. Best we came up with was it was an adjustment issue. So yesterday I completely went through and readjusted the brakes. Tada, no change. At least in pedal travel. Have not driven it yet. May bleed it again too. Maybe I'm expecting too much. I kinda get the lower pedal with the larger wheel cylinders, but would expect the second airpack to be more than sufficient to make up for that. And it seems softer too. Plus I feel the brake effectiveness is not what it should be. I installed some sunvisors from a Jeep CJ, figured they might be nice heading into an evening sun. Needed to cover up my dinette table hinge bracket so I made a window sill for the front window. Good place for the toothpicks. Finished up the paneling around the water tank and the kitchen sink counter. Also installed a rough door for the under sink cabinet. Put in a small shelf too. Running out of time, so everything is rough and untrimmed for now.
It's not the bore size but the volume size that is of concern here. Quadjeeper, I cannot remember but did you install the 1.5" bore wheel cylinders on ALL the wheels ? or just the fronts ? Also are you running the old style air-pacs or the new style ? If you are running the new style and went with 1.5" bore wheel cylinders on all the wheels then you could be running out of fluid on the rear axles. This would definitely cause a lower pedal.Something to consider when going to bigger wheel cylinders is that the master cylinder and wheel cylinder bore size's need to match. If one or the other is larger you will never get the correct pedal feel or stopping power. There is a good article in The Horse Backstreet Choppers on this in regards to building a custom motorcycle brake set up. My 2 cents!
'DIZ, it worked very well. Quite happy with the hot water system.QJ I've been looking at something similar but at 2gpm , curious as to the temp difference. Looking forward to seeing how that works for you(before I try it)
Quick update on the brakes. Just returned from the GA Rally, approx. 900 miles. Brakes MUCH better after a few hundred miles. Pedal firm, and good stopping power. I guess shoes needed to be broken in. Were fairly new. Before I left, adjusted the pedal height to max, now further from the floor at full apply. Need to open a bleeder to see if the master or the pedal bottoms first. RS, I used the A3 wheel cylinders on all six. New style air packs.It's not the bore size but the volume size that is of concern here. Quadjeeper, I cannot remember but did you install the 1.5" bore wheel cylinders on ALL the wheels ? or just the fronts ? Also are you running the old style air-pacs or the new style ? If you are running the new style and went with 1.5" bore wheel cylinders on all the wheels then you could be running out of fluid on the rear axles. This would definitely cause a lower pedal.
That's good to hear ! I was a little concerned about the fluid volume needed for the rear brakes using a new style air-pac, but it appears everything is OK ! That is good to know.Quick update on the brakes. Just returned from the GA Rally, approx. 900 miles. Brakes MUCH better after a few hundred miles. Pedal firm, and good stopping power. I guess shoes needed to be broken in. Were fairly new. Before I left, adjusted the pedal height to max, now further from the floor at full apply. Need to open a bleeder to see if the master or the pedal bottoms first. RS, I used the A3 wheel cylinders on all six. New style air packs.