power bled my clutch. great results
#41
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Well, I found that when I pressurized my system, I had a leak - a sizable one - and it appeared to come from the hose connecting the master cylinder to the reservoir. There was a friggin' zip-tie connecting the hose to the reservoir!
Is it supposed to be like that from the factory?
I also found that the fluid in there was VERY dark - almost black. I dont think I've seen brake fluid get that dark. First pic is in the reservoir, second was in a clear glass I siphoned it in to. Any thoughts on why this may have happened? Is it just old fluid?
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I also found that the fluid in there was VERY dark - almost black. I dont think I've seen brake fluid get that dark. First pic is in the reservoir, second was in a clear glass I siphoned it in to. Any thoughts on why this may have happened? Is it just old fluid?
Last edited by gun4hire; 10-05-2006 at 08:06 PM.
#42
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If I recall correctly, they are all zip-tied from the factory like that. It isn't a high pressure system, so it suffices.
As for the brake fluid...mine has been exactly that color in the past. For that very reason, I am making it a point to bleed my clutch fluid (full swap) more often (at least every year, if not ever 6 months).
As for the brake fluid...mine has been exactly that color in the past. For that very reason, I am making it a point to bleed my clutch fluid (full swap) more often (at least every year, if not ever 6 months).
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Well that zip tie (and the corresponding hose) pretty much slipped off with nothing more than a gentle pry with a screwdriver. When I tried to pressure up to 10psi (recommended by Motive) to test - that's where it leaked.
I've now used a regular hose clamp and successfully pressurized the system - all seems well now...so onward to bleed the whole system!
I've now used a regular hose clamp and successfully pressurized the system - all seems well now...so onward to bleed the whole system!
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Originally Posted by gun4hire
I also found that the fluid in there was VERY dark - almost black. I dont think I've seen brake fluid get that dark. First pic is in the reservoir, second was in a clear glass I siphoned it in to. Any thoughts on why this may have happened? Is it just old fluid?
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I wonder when some people use the mity vac if this is the source of the 'endless bubbles?' I would mity vac to 15psi....when I was at 20psi I would sometimes see a bubble every 15 seconds or so, which went on for 20 minutes..... So, you just tightened a standard hose clamp (screw driver tighten type)?
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Well, Motive says not to exceed 20psi with their power bleeder, but I don't see why a lower pressure wouldn't get the job done. When using the mity vac in the past (vacuum vs. pressure), I'd use 15psi and 20psi per the Buschman method.
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Originally Posted by MrEddie
I wonder when some people use the mity vac if this is the source of the 'endless bubbles?' I would mity vac to 15psi....when I was at 20psi I would sometimes see a bubble every 15 seconds or so, which went on for 20 minutes..... So, you just tightened a standard hose clamp (screw driver tighten type)?
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Originally Posted by MrEddie
Well, Motive says not to exceed 20psi with their power bleeder, but I don't see why a lower pressure wouldn't get the job done. When using the mity vac in the past (vacuum vs. pressure), I'd use 15psi and 20psi per the Buschman method.
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Originally Posted by gun4hire
My motive speed bleeder says 10psi to check for leaks. 10psi is MORE than enough to push brake fluid through, so I wouldn't exceed this level - at least when working with the clutch. Doing brakes (what the bleeder is principally designed for - no rubber hoses) would be a different story.
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My Motive power bleeder has a metal crimp on clamp holding the tubing to the can, as well as the different adapters holding the quick disconnect on. I opted to spend the few extra bucks for the Pro version just for the extra adapters and the quick disconnect fittings. I used 15 psi to bleed my clutch and brakes, but it drops to 10 psi fairly quick once you pop a bleeder. I had 0 problems with mine.
Dan
Dan
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I tested mine today and it'll go up to 10psi but will drop very slowly - I hope it won't be an issue. I can hear a very faint hissing around the cap - maybe I don't have it tight enough, or like it was mentioned, it isn't designed to be pressurized to begin with.
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I finally got around to doing mine today and it rocks! I used one bottle of GM hydraulic fluid with just a small portion left over. I don't totally understand the fluid dynamics, but I was confused when I noticed the fluid in the clear hose was separated by 2 air pockets (see pic). I thought it would have to be a solid stream of fluid, but I guess it's the last stream of fluid going into the reservoir that's important. Anyway, I pumped to 10 psi and the level didn't really drop after a while, which makes me think the perceived drop in psi during the leak test was primarily the air in the master/slave compressing. I cracked the bleeder, left it open for a few seconds and then closed - no pumping of the pedal :-) I did this for about 10 times since this is when the fluid level in the hose dropped into the reservoir. I kept the power bleeder surrounded by a plastic bag since there was a small leak around the brass connections. Anyway, I took it for a drive and it is much, much better. I wasn't locked out of gear after keeping the pedal depressed for 10 seconds (which almost always happened before). Now, I'm scrapping the solobleeders and am going to do the brakes.
Picture too large...I'm going to have to work on shrinking it.
Picture too large...I'm going to have to work on shrinking it.
Last edited by MrEddie; 10-08-2006 at 08:03 PM.
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Here's the cropped pic of the Motive bleeder in action. It's at 10 psi and I probably opened/closed the bleeder screw 4 times at this point. Anyway, there's the solid stream of fluid right above the reservoir (reservoir is full to the top at this point), but then there are these air pockets behind the stream. Did anyone else experience this? I guess it may be normal since everything seemed to work out. Thanks! I wish I had known about this product from day 1.
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Originally Posted by MrEddie
Here's the cropped pic of the Motive bleeder in action. It's at 10 psi and I probably opened/closed the bleeder screw 4 times at this point. Anyway, there's the solid stream of fluid right above the reservoir (reservoir is full to the top at this point), but then there are these air pockets behind the stream. Did anyone else experience this? I guess it may be normal since everything seemed to work out. Thanks! I wish I had known about this product from day 1.