motive power bleeder
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Joined: Oct 2003
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From: Topeka KS
motive power bleeder
Going to buy the motive power bleeder. Will the part # 1108 adapter work for both the brake and clutch master cylinders? How much pressure should be used to bleed the clutch and brake systems?
Thanks
Thanks
Burning Brakes
Joined: Jan 2006
Posts: 1,226
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From: Castleton VA
Cruise-In VIII Veteran
I use ~7-10 psi -- the flow is slow, but steady. I'm too concerned about blowing the plastic reservoir up off the master cylinder to go much higher, especially when 10 psi gives perfectly good results (yeah, unlikely to actually happen, but I'm paranoid
)HTH,
Mark
Instructor
Joined: Jan 2009
Posts: 149
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From: Houston Texas
I have the same unit. I have never used the cap on the clutch reservoir -- unless you have a remote bleeder hose attached to the slave cylinder (or you are willing to try to get your hand/wrench up into the essentially impossible to reach slave bleeder valve), there's no purpose to be served by applying pressure to the clutch reservoir -- there's nowhere for the clutch fluid to go. (And IIRC, the clutch reservoir top is also smaller than the brake reservoir, so it won't fit anyway).
I use ~7-10 psi -- the flow is slow, but steady. I'm too concerned about blowing the plastic reservoir up off the master cylinder to go much higher, especially when 10 psi gives perfectly good results (yeah, unlikely to actually happen, but I'm paranoid)
HTH,
Mark
I use ~7-10 psi -- the flow is slow, but steady. I'm too concerned about blowing the plastic reservoir up off the master cylinder to go much higher, especially when 10 psi gives perfectly good results (yeah, unlikely to actually happen, but I'm paranoid
)HTH,
Mark
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Joined: Oct 2003
Posts: 53
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From: Topeka KS
Thanks
Safety Car
Joined: Jul 2004
Posts: 3,904
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From: Vancouver Washington
I don't think Motive makes a cap (other than that universal thing that's a pain to use) to fit the clutch reservoir. You can buy a new clutch reservoir cap and install a fitting to it though.
Instructor
Joined: Jan 2009
Posts: 149
Likes: 1
From: Houston Texas
This is true - if you look through Motive's complete online catalog of items you'll see one for "custom caps". You can send them a cap and they will install a fitting for you if you don't feel like messing with it.
Pro
Joined: Jan 2006
Posts: 643
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From: Alexandria Northern Virginia
Why not make a cap yourself? Get a barb fitting with threads on one end and a cap, drill it and tap it, bam. Then do a connector on your motive setup.
FWIW, I don't use my Motive properly. I keep the unit dry, then just use it to pressurize the master cylinder. That way, I can switch colors of brake fluid between bleeds and KNOW I have bled the system. Yes, I have to check it between wheels and repressurize it a few times...much better than another messy tool, IMO.
As for the clutch on mine, I use a Mightyvac on my remote bleeder, does wonders.
Cassidy
FWIW, I don't use my Motive properly. I keep the unit dry, then just use it to pressurize the master cylinder. That way, I can switch colors of brake fluid between bleeds and KNOW I have bled the system.
Yes, I have to check it between wheels and repressurize it a few times...much better than another messy tool, IMO.As for the clutch on mine, I use a Mightyvac on my remote bleeder, does wonders.
Cassidy
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AMP Racing
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From: Washington TWP NJ
2023 C5 of the Year Finalist - Modified
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St. Jude Donor '09-'10-'11-'12
Good info here.
I've been looking into getting a Motive bleeder. Where do you guys suggest is the best place?
I've been looking into getting a Motive bleeder. Where do you guys suggest is the best place?
Tech Contributor
Joined: Oct 1999
Posts: 40,998
Likes: 9,764
From: Charlotte, NC (formerly Endicott, NY)
I have the 1108. When power bleeding the Service Manual says to use 25 psi. However, the Motive cap will not handle that high of a pressure. It will handle 20 psi though. Price should be between $55 and $65 depending on where you get it. Do a search on the net to see who has the best price.
When you use it do not put any brake fluid in the unit. Just suck old fluid out of the master cylinder and refill with new, apply the cap and pressurize. A lot less messy.
Bill
When you use it do not put any brake fluid in the unit. Just suck old fluid out of the master cylinder and refill with new, apply the cap and pressurize. A lot less messy.
Bill
Team Owner
Joined: Jul 2004
Posts: 24,652
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From: NJ
St. Jude Donor '05-'08
I have been using the motive pressure bleeder for some time. It is real handy at the track when I need to bleed off some fluid and there is no one around to help.
When I do a full flush I remove the old fluid from the master and then replace with new. I pump to somewhere between 12-15 lbs. I then open the bleeders and watch it flow out. I can usually get the backs done before having to fill the master again for the fronts.
I also relieve the pressure by loosing the cap on the motive and then I remove from the master. I think there is less chance for fluid to come out this way.
When I do a full flush I remove the old fluid from the master and then replace with new. I pump to somewhere between 12-15 lbs. I then open the bleeders and watch it flow out. I can usually get the backs done before having to fill the master again for the fronts.
I also relieve the pressure by loosing the cap on the motive and then I remove from the master. I think there is less chance for fluid to come out this way.
Burning Brakes
Joined: Aug 2005
Posts: 772
Likes: 6
From: Huntsville AL
I decided to cheat a little. I purchased just the adapter part for $25.00. The fitting on the hose is a standard 1/4" fitting that your air hose adapter will screw into. I just turned my compressor regulator down to 20 psi and used that. Save the extra money on buying a tank w/ a guage.
Melting Slicks
Joined: Jan 2002
Posts: 2,754
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From: Nokomis FL
If you find a clutch cap post where you got it. Also you'll need the gasket with the bottom cut out. I've been looking for over a year and all information states it's only available on a new master cylinder. Still looking for a used one without much luck.
Le Mans Master
Joined: Oct 2003
Posts: 6,126
Likes: 19
From: Streamwood illinois
I decided to cheat a little. I purchased just the adapter part for $25.00. The fitting on the hose is a standard 1/4" fitting that your air hose adapter will screw into. I just turned my compressor regulator down to 20 psi and used that. Save the extra money on buying a tank w/ a guage.
Dave
Team Owner
Joined: Sep 2003
Posts: 43,084
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From: Raleigh / Rolesville NC
when you pump the power bleeder up to 20-22 psi, that opens the ABS module
The after you bleed the rear two calipers, then pump the brake peddle 3-4 times.
same after the front two calipers are bleed.
Take the car for a short drive and should be good to go
The after you bleed the rear two calipers, then pump the brake peddle 3-4 times.
same after the front two calipers are bleed.
Take the car for a short drive and should be good to go
Team Owner
Joined: Sep 2003
Posts: 43,084
Likes: 33
From: Raleigh / Rolesville NC
too a sure you have a firm brake peddle.
Besides, after you do the rear two calipers, you will need to refill the MC.
Then after bleeding the fronts, pump the brake peddle again 3-4 times to assure the brake peddle is good and firm.
If it is not, there is air in your lines, and need to start over.
Once you fell the brake peddle is firm, fill the MC up 3/4 way. Not to the full line, that is too much.
But 1/2 way between the tank seam and the full line is perfect.
EDIT: REMEMBER TO HAVE THE MC CAP ON TIGHT BEFORE PUMPING YOUR BRAKES. Other wise "thar she blowsss" Brake fluid all over everything
Besides, after you do the rear two calipers, you will need to refill the MC.
Then after bleeding the fronts, pump the brake peddle again 3-4 times to assure the brake peddle is good and firm.
If it is not, there is air in your lines, and need to start over.
Once you fell the brake peddle is firm, fill the MC up 3/4 way. Not to the full line, that is too much.
But 1/2 way between the tank seam and the full line is perfect.
EDIT: REMEMBER TO HAVE THE MC CAP ON TIGHT BEFORE PUMPING YOUR BRAKES. Other wise "thar she blowsss" Brake fluid all over everything
Last edited by AU N EGL; Apr 4, 2009 at 06:47 PM.
Safety Car
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From: Boise ID