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General Category => General Discussion => Topic started by: radguzzi on January 01, 2016, 12:04:51 PM

Title: Mityvac Vacuum Brake Bleeder...?
Post by: radguzzi on January 01, 2016, 12:04:51 PM
I have been meaning to upgrade from the feeble little hand type brake bleeding rigs to a vacuum set up but I cannot tell if this one has the proper adapters for a Brembo brake caliper.

Anyone here use this particular set up that can answer that question...?  I take it also this set up is run off a compressor, any special needs there like an inline valve to regulate the air volume or anything like that...?

Thanks,
Rob



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Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: guzzisteve on January 01, 2016, 12:36:29 PM
That's what we use at dealership I work at and also have the same at home. I don't use adapters, plug hose directly on the bleeder. Everything you need is in kit, regulator is not needed on compressor in the set-ups I have worked with.
Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: blackcat on January 01, 2016, 01:10:56 PM
Rob, If you don't want to spend the money this one works fine:
 
http://www.harborfreight.com/automotive-motorcycle/brakes/brake-fluid-bleeder-92924.html

Connectors that came with the kit worked just fine. I used it on the bikes and the car with no issues.
Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: Perazzimx14 on January 01, 2016, 01:45:14 PM
Or you can use a $2 syringe from Tractor Supply and 1 or 2 cent piece of 1/4" tubing and "reverse bleed" the brakes. After using this method I no longer use the a mity-vac.
Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: clubman on January 01, 2016, 03:42:32 PM
Or, you can save a lot of time and money and just install "speed bleeders" (Google it). Better, faster, cleaner, cheaper. Yes I have a "Mighty Vac" (mighty big PITA) and a Craftsman vac. kit. It took me a long time, but I finally listened to others (I'll never learn). :wink: 
Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: radguzzi on January 01, 2016, 07:47:41 PM
Rob, If you don't want to spend the money this one works fine:
 
http://www.harborfreight.com/automotive-motorcycle/brakes/brake-fluid-bleeder-92924.html

Connectors that came with the kit worked just fine. I used it on the bikes and the car with no issues.

Ahh. good to know, I looked at that on line, we have a HF up here also...  I could not tell by the description whether the connectors would work on the Guzzi caliper nipples.  Excellent.

Thanks

Don't know if you need something that complex.  I have a hand pump unit that will suck a reservoir dry in seconds and it was pretty cheap.

I have the smaller hand pumps and just do not like them, I have had better luck with pumping by hand than with the small hand pumps. 

Or you can use a $2 syringe from Tractor Supply and 1 or 2 cent piece of 1/4" tubing and "reverse bleed" the brakes. After using this method I no longer use the a mity-vac.

Yeah, I don't know if I just suck at this job or what but I always have trouble with bleeding on linked brakes, getting fluid to pass through the proportioning valve and all that...

Or, you can save a lot of time and money and just install "speed bleeders" (Google it). Better, faster, cleaner, cheaper. Yes I have a "Mighty Vac" (mighty big PITA) and a Craftsman vac. kit. It took me a long time, but I finally listened to others (I'll never learn). :wink:

Thought about that as well, the LeMans that I need to do is not mine.  THey look to be a cool set up.

Thanks,
Rob


Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: jrt on January 01, 2016, 09:05:10 PM
Or, you can save a lot of time and money and just install "speed bleeders" (Google it). Better, faster, cleaner, cheaper. Yes I have a "Mighty Vac" (mighty big PITA) and a Craftsman vac. kit. It took me a long time, but I finally listened to others (I'll never learn). :wink:

Maybe it is just me, but I have had the worst luck with speed bleeders.  Every last one of them has leaked. 
Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: yogidozer on January 01, 2016, 09:58:13 PM
Or you can use a $2 syringe from Tractor Supply and 1 or 2 cent piece of 1/4" tubing and "reverse bleed" the brakes. After using this method I no longer use the a mity-vac.

yup
Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: Perazzimx14 on January 02, 2016, 06:17:50 AM
Ahh. good to know, I looked at that on line, we have a HF up here also...  I could not tell by the description whether the connectors would work on the Guzzi caliper nipples.  Excellent.

Thanks

I have the smaller hand pumps and just do not like them, I have had better luck with pumping by hand than with the small hand pumps. 

Yeah, I don't know if I just suck at this job or what but I always have trouble with bleeding on linked brakes, getting fluid to pass through the proportioning valve and all that...

Thought about that as well, the LeMans that I need to do is not mine.  THey look to be a cool set up.

Thanks,
Rob

Bleeding linked brakes on my T3 was the 1st time I used the reverse bleed method. After trying for hours on my V50 years ago with a mity vac I was really fretting doing the brakes on my T3. I had recently rebuilt the entire brake system so it was totally void of brake fluid.  Got the courage up one morning to tackle the task and to my surprise within about 20 I has a completely bled and operational set of brakes on the bike using the reverse bleed method. The mity-vac went in the trash shortly thereafter.
Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: radguzzi on January 02, 2016, 06:25:27 AM
Bleeding linked brakes on my T3 was the 1st time I used the reverse bleed method. After trying for hours on my V50 years ago with a mity vac I was really fretting doing the brakes on my T3. I had recently rebuilt the entire brake system so it was totally void of brake fluid.  Got the courage up one morning to tackle the task and to my surprise within about 20 I has a completely bled and operational set of brakes on the bike.

So did you use the reverse bleeding method or the mityvac...?

Thanks,
Rob

Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: Perazzimx14 on January 02, 2016, 09:20:43 AM
So did you use the reverse bleeding method or the mityvac...?

Thanks,
Rob

I used the reverse bleed method.

Trying to suck/vacuum brake fluid from a high point to a low point there is a high risk of trapping air or pulling air into the system past the bleeder screw threads. Pushing fluid from low to high and keeping "positive" pressure on the system helps push the air to the high point and will not allow air to be sucked in past bleeder screws. Air wants to rise in fluid anyway, your just helping push it along.
Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: Cam3512 on January 02, 2016, 09:28:35 AM
Speed Bleeders!
Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: Perazzimx14 on January 02, 2016, 09:58:25 AM
Speed Bleeders!

Speed Bleeders, Blah. At around $7 per speed bleeder and hearing several people like Clubman experience I'll save the money. I currently have 14 calipers I am maintaining on my bikes and at $7 each that would be over $100 shipped for something a $2 syringe does.

Title: Re: Mityvac Vacuum Brake Bleeder...?
Post by: Rich A on January 02, 2016, 10:40:28 AM
I haven't ever tried the reverse bleeding method as I was afraid I'd blow brake fluid onto places where I didn't want it to go. I should try this.

But I have an old vacuum pump that I hooked it up to a reservoir and it works very well.

Rich A