Tools & Fabrication Hand | Power | Hydraulic | Pneumatic | Welding | Painting

MityVac

Thread Tools
 
Search this Thread
 
Old Mar 10, 2004 | 06:00 PM
  #1  
Get Shorty's Avatar
Thread Starter
Teching In
 
Joined: Sep 2002
Posts: 47
Likes: 0
From: Baton Rouge, LA
Default MityVac

Picked up a MityVac a few weeks ago, and just bled the brakes on my wife's Malibu... This is a great tool! $30 at Harbor Freight.
Reply
Old Mar 10, 2004 | 09:17 PM
  #2  
Roadrunner 45's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Oct 2002
Posts: 694
Likes: 0
From: Hawthorn Woods, IL
Default

I never seem to have any luck with mine- I always go back to bleeding the brakes the old fashioned way.
Reply
Old Mar 11, 2004 | 10:48 AM
  #3  
Get Shorty's Avatar
Thread Starter
Teching In
 
Joined: Sep 2002
Posts: 47
Likes: 0
From: Baton Rouge, LA
Default

What goes wrong? I thought it was super easy... This way I could do it by myself.
Reply
Old Mar 13, 2004 | 12:51 PM
  #4  
2KThunder's Avatar
TECH Fanatic
iTrader: (4)
 
Joined: May 2003
Posts: 1,670
Likes: 0
From: San Marcos, TX
Default

I got one. Its nice, no problems yet. I also got a auto-darkening mask for $50 (welding) they are usually $100+. It works great.
Reply
Old Mar 13, 2004 | 02:12 PM
  #5  
Roadrunner 45's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Oct 2002
Posts: 694
Likes: 0
From: Hawthorn Woods, IL
Default

The few times I've tried to use it were on installs with almost all virgin lines- I think mabye there's just soo much air that the vac can't do it's thing. Or it's quite possible that I may be mildly retarded.
Reply
Old Mar 15, 2004 | 10:37 AM
  #6  
PSU_Engineer's Avatar
TECH Enthusiast
20 Year Member
 
Joined: Aug 2003
Posts: 658
Likes: 0
From: Harrisburg, PA
Default

Originally Posted by Roadrunner 45
The few times I've tried to use it were on installs with almost all virgin lines- I think mabye there's just soo much air that the vac can't do it's thing. Or it's quite possible that I may be mildly retarded.
Well then call me your retarded brother. I've never had any luck either bleeding the system with my mitivac. Bled one system 4 times back to back, still had mushy pedal. Bled it once the old fashioned way, pedal is nice and firm. Maybe I was doing it wrong?
Reply
Old Mar 15, 2004 | 09:26 PM
  #7  
Roadrunner 45's Avatar
TECH Enthusiast
iTrader: (1)
 
Joined: Oct 2002
Posts: 694
Likes: 0
From: Hawthorn Woods, IL
Default

after thinking about it, I wonder if the mity-vac tends to create enough vacum to draw air in from around the bleeder threads once the bleeders are cracked?
I guess it's also possible that the plastic nipples they give you don't fit well it would draw air in between the nipple and the bleeder screw.

This would not be an issue when bleeding by creating pressure by using the pedal and would explain why it never seems to work for me, but bleeding with the pedal ALWAYS does.
Reply
Old Mar 19, 2004 | 09:30 PM
  #8  
Get Shorty's Avatar
Thread Starter
Teching In
 
Joined: Sep 2002
Posts: 47
Likes: 0
From: Baton Rouge, LA
Default

FWIW, I used the needle attachment that fits inside of the bleeder screw. This was on my wife's Malibu. I might try doing it the old fashioned way, just to see if that makes the pedal even more firm. Maybe it does suck a little air around the threads. I believe it mentions this in the manual, but says it has no effect because the air doesn't get in the system... I don't know...
Reply
LS1 Tech Stories

The Best V8 Stories One Small Block at Time

story-0

Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

 Verdad Gallardo
story-1

6 Common C5 Corvette Failures and What's Involved In Repairing Them

 Pouria Savadkouei
story-2

Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

 Verdad Gallardo
story-3

Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

 Pouria Savadkouei
story-4

Top 10 Most Powerful Chevy Trucks Ever Made!

 
story-5

Hennessey's New Supercharged Silverado ZR2 Has 700 HP

 Verdad Gallardo
story-6

Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

 Verdad Gallardo
story-7

Awesome K5 Blazer Restomod Comes With C7 Corvette Power

 Verdad Gallardo
story-8

10 Camaros You Should Never Buy

 
story-9

10 LS Engine Myths That Refuse to Die

 Verdad Gallardo
Old Mar 21, 2004 | 11:12 PM
  #9  
DrkPhx's Avatar
10 Second Club
iTrader: (15)
 
Joined: Nov 2001
Posts: 4,519
Likes: 0
From: St. Michael, MN.
Default

Originally Posted by Roadrunner 45
after thinking about it, I wonder if the mity-vac tends to create enough vacum to draw air in from around the bleeder threads once the bleeders are cracked?
I guess it's also possible that the plastic nipples they give you don't fit well it would draw air in between the nipple and the bleeder screw.

This would not be an issue when bleeding by creating pressure by using the pedal and would explain why it never seems to work for me, but bleeding with the pedal ALWAYS does.
I've used one for years with no problems. The key is sealing the plastic hose to the bleeder valve. I pump it up to 25 psi then let go of the trigger for a second to make sure the needle on the gauge is steady and does not go down. After confirming it's steady open the bleeder valve. FWIW, I get the same results between the two methods.
Reply
Old Mar 23, 2004 | 05:12 PM
  #10  
Get Shorty's Avatar
Thread Starter
Teching In
 
Joined: Sep 2002
Posts: 47
Likes: 0
From: Baton Rouge, LA
Default

Originally Posted by BLKTA
I've used one for years with no problems. The key is sealing the plastic hose to the bleeder valve. I pump it up to 25 psi then let go of the trigger for a second to make sure the needle on the gauge is steady and does not go down. After confirming it's steady open the bleeder valve. FWIW, I get the same results between the two methods.

That's what I did... Seemed to work fine.
Reply
Old Mar 24, 2004 | 09:35 AM
  #11  
VETTEX2's Avatar
Launching!
 
Joined: Feb 2004
Posts: 238
Likes: 0
From: NOR-CAL
Default

I prefer this.... http://www.motiveproducts.com/
Reply




All times are GMT -5. The time now is 12:15 AM.

story-0
Amazing '71 Camaro Restomod Is Modern Muscle Car Under the Skin

Slideshow: This heavily modified 1971 Camaro mixes classic muscle car styling with a fifth-generation Camaro interior and modern LS3 power.

By Verdad Gallardo | 2026-05-12 18:06:42


VIEW MORE
story-1
6 Common C5 Corvette Failures and What's Involved In Repairing Them

Slideshow: From wobbling harmonic balancers to failed EBCMs, these are the issues that define long-term C5 ownership and what repairs typically involve.

By Pouria Savadkouei | 2026-05-07 18:44:57


VIEW MORE
story-2
Retro Modern Bandit Pontiac Trans AM Comes With Burt Reynolds' Autograph

Slideshow: A modern Camaro transformed into a retro icon, this limited-run "Bandit" build blends nostalgia with brute force in a way few revivals manage.

By Verdad Gallardo | 2026-04-21 13:57:02


VIEW MORE
story-3
Top 10 Greatest Cadillac V Series Performance Models Ever, Ranked

Slideshow: Cadillac didn't just crash the high-performance luxury vehicle party, it showed up loud, supercharged, and occasionally a little unhinged...

By Pouria Savadkouei | 2026-04-16 10:05:15


VIEW MORE
story-4
Top 10 Most Powerful Chevy Trucks Ever Made!

Slideshow: Top ten most powerful Chevy trucks ever made

By | 2026-03-25 09:22:26


VIEW MORE
story-5
Hennessey's New Supercharged Silverado ZR2 Has 700 HP

Slideshow: Hennessey has turned the Silverado ZR2 into a 700-hp off-road monster with supercharged V8 power and a limited production run.

By Verdad Gallardo | 2026-03-24 18:57:52


VIEW MORE
story-6
Coachbuilt N2A Anteros Is an LS2-Powered C6 Corvette In Italian Clothes

Slideshow: A one-off sports car that looks like a vintage Italian exotic-but hides a C6 Corvette underneath-just sold for the price of a new mid-engine Corvette.

By Verdad Gallardo | 2026-03-23 18:53:41


VIEW MORE
story-7
Awesome K5 Blazer Restomod Comes With C7 Corvette Power

Slideshow: A heavily reworked 1972 K5 Blazer swaps its off-road roots for a low-slung street-focused build with modern V8 power.

By Verdad Gallardo | 2026-03-09 18:08:45


VIEW MORE
story-8
10 Camaros You Should Never Buy

Slideshow: There are thousands of used Camaros on the market but we think you should avoid these 10

By | 2026-02-17 17:09:30


VIEW MORE
story-9
10 LS Engine Myths That Refuse to Die

Slideshows: Which one of these myths do you believe?

By Verdad Gallardo | 2026-01-28 18:10:11


VIEW MORE