MityVac brake bleeders...?

[radguzzi]

Any of you guys use a particular brake bleeding vacuum for your motorcycles...?    I have owned a couple of different units but they just did not work well, probably because they were cheaper units, could have been operator error... dunno.   :-\

Any experience with the two shown here...?

Thanks,
Rob



http://www.amazon.com/Mityvac-MV6835-Vacuum-Brake-Bleeding/dp/B0015POUXM/ref=sr_1_3?ie=UTF8&qid=1429837753&sr=8-3&keywords=mityvac+vacuum+brake+bleeder






http://www.eastwood.com/mityvac-silverline-elite-test-hand-pump-kit-mv8500.html?fee=7&fep=48020&adpos=1o1&creative=61491486660&device=c&matchtype=&network=g&SRCCODE=GA220010&gclid=CjwKEAjwsOKpBRCDtfOnzaDg3HsSJAAJ2ojiCzbrcHqgnFPnj7iaaS7-CwdELfGCCi1og9xy0z9eYRoCPRrw_wcB

[jbell]

I've been using a pistol grip type MityVac for years on cars and bikes.  Works well, no complaints.

[blackcat]

http://t.harborfreight.com/automotive-motorcycle/brakes/brake-fluid-bleeder-92924.html

I gave up with the small Mityvac and bought the HF bleeder. Works great.

[cj750]

I've been using a pistol grip type MityVac for years on cars and bikes.  Works well, no complaints.

Ditto. Very handy tool.

[Turin]

I use the pistol grip version as well, but not the fancy one (pictured). I bought mine at O'Rielly auto Parts for under 50 bucks. works great.

[ibis1]

The hand pump is much more practical. It can be used for a lot of other diagnostic uses. If you have a friend, a good manual brake bleed will do a good job. The other units are way over kill for what you need. :BEER:

[radguzzi]

I must be doing it wrong.  I've got the hand-pumped one and find the collection bottle is too small, and I always seem to be sucking air in around the bleed fitting.  Must be me...

Make sure that the fitting is tight is all I can suggest.

Part of the reason that I inquired actually...  

So I did a Google search on Mity Vacs and saw a You Tube vid that showed a fellow pumping up the hose and bottle with the hose attached to the bleed nipple PRIOR to cracking the nipple.  Then continue pumping after open the nipple.  Could have been my error all along, perhaps yours as well.


I will have to try that method also.

Best,
Rob

http://t.harborfreight.com/automotive-motorcycle/brakes/brake-fluid-bleeder-92924.html

I gave up with the small Mityvac and bought the HF bleeder. Works great.

So is the air pressure part of that unit a cool feature...?

[Perazzimx14]

I had the pistol grip model and it quit working. Now I use a big syringe and a piece of 1/4" aquarium tubing. The only difference between the syringe and MityVac is about $30.

[Old Jock]

Been using a Mityvac pistol grip pump for longer than I care to remember.

Works great. The constant bubbles are when the vacuum pump pulls in air through the bleed nipple thread and is not air in the system.

The way around this is when the system is drained down remove and PTFE the bleed nipple threads, it only needs to be done very very occasionally and that stops the "Tiny Bubbles" syndrome, or you can just ignore them. Its easy to tell what is air in the system and what is being pulled through the threads, the bubbles from the threads are tiny.

What I do is attach the hose pull around 10-15" Hg vacuum, with the nipple closed, crack the nipple and let it pull the fluid. There is a problem if you are using more than a bottle worth on the Mityvac, I usually fill less than 1/2 a bottle, granted my system is not linked.

Sometimes I do need to combo pressure and vacuum bleeding, but overall its a great tool and enables one person bleeding with little mess. The only time I have a spillage is getting the fluid from the new bottle into the reservoir.

Just my experience

[blackcat]

Quote from: blackcat on April 23, 2015, 09:46:27 PM
http://t.harborfreight.com/automotive-motorcycle/brakes/brake-fluid-bleeder-92924.html

I gave up with the small Mityvac and bought the HF bleeder. Works great.

So is the air pressure part of that unit a cool feature...?"

Yes. Hook it up to the compressor, hold the trigger and watch the fluid flow. I installed new disc brakes on the el Camino and it made the job go way faster than a manual pump. On the bikes it's a breeze. The fluid moves fast so make sure you keep on eye on the reservoir.

[clubman]

Google "speed bleeders". Put a pair of these on my V7C. Can bleed/change fluid on both brakes in less time than it takes to get a Mighty Vac out of the box, yes I have one of thoses that doesn't work very well . Speedbleeders work especially well on difficult bottom mounted bleed screws like the V7's rear (some Duc's too).

[Tony/CT]

Hi Rob, I have speed bleeders on the Cal. Vintage. PO installed them and liked them. I haven't changed the brake fluid ye

.

[Chuck in Indiana]

Radguzzi, Old Jock.

Thanks guys.  I'll try your suggestions on my next attempt.

Put a little grease around the threads if it's sucking air..

[dilligaf]

The hand pump is much more practical. It can be used for a lot of other diagnostic uses. If you have a friend, a good manual brake bleed will do a good job. The other units are way over kill for what you need. :BEER:

When we had the shop the MityVac worked great but  the last two I purchased didn't last.  For the at home get some clear tubing and go to it.  :BEER:
Matt

[Joe A.]

http://t.harborfreight.com/automotive-motorcycle/brakes/brake-fluid-bleeder-92924.html

I gave up with the small Mityvac and bought the HF bleeder. Works great.

Same here, changed brake fluid on the Goldwing, Jackal and NC700X without a problem.

[toma nova]

Any of you guys use a particular brake bleeding vacuum for your motorcycles...?    I have owned a couple of different units but they just did not work well, probably because they were cheaper units, could have been operator error... dunno.   :-\

Any experience with the two shown here...?

Thanks,
Rob

I've got two of the handheld units - you can have one for shipping.  All accessories and tips but no tubing.  It's plastic without the gauge, just for bleeding and not pressure checks.

I alternate between the Mity Vac and tubing / my daughter pumping the brakes - depends if she wants to help or if I'm tinkering on my own.

Tom

[mtiberio]

I must be doing it wrong.  I've got the hand-pumped one and find the collection bottle is too small, and I always seem to be sucking air in around the bleed fitting.  Must be me...

empty bottle while bleeding is the solution to bottle size...
to prevent leaking around the bleeder nipple (and I might add leakage between the hose and bleeder is small compared to the leakage between the bleeder and the caliper body threads) I use a single wrap of safety wire.

[canuguzzi]

Google "speed bleeders". Put a pair of these on my V7C. Can bleed/change fluid on both brakes in less time than it takes to get a Mighty Vac out of the box, yes I have one of thoses that doesn't work very well . Speedbleeders work especially well on difficult bottom mounted bleed screws like the V7's rear (some Duc's too).

 :+1 :+1

[gearman]

Quote from: blackcat on April 23, 2015, 09:46:27 PM
http://t.harborfreight.com/automotive-motorcycle/brakes/brake-fluid-bleeder-92924.html

I gave up with the small Mityvac and bought the HF bleeder. Works great.

So is the air pressure part of that unit a cool feature...?"

Yes. Hook it up to the compressor, hold the trigger and watch the fluid flow. I installed new disc brakes on the el Camino and it made the job go way faster than a manual pump. On the bikes it's a breeze. The fluid moves fast so make sure you keep on eye on the reservoir.

Totally agree. Love my HF bleeder.

[RinkRat II]

Been using a Mityvac pistol grip pump for longer than I care to remember.

Works great  :+1 :+1 40 Years plus no complaints!

    Paul :BEER:

[rbm]

Google "speed bleeders". Put a pair of these on my V7C.

What was the diameter & pitch of the speed bleeders you fitted?  10mm x 1.0mm??

[clubman]

Sorry, I didn't write it down when I measured them. I'll look and see if I can find my receipt. The front is very common, rear is much larger and more common on cars.

[clubman]

What was the diameter & pitch of the speed bleeders you fitted?  10mm x 1.0mm??

Amazing! I found my notes. Front bleeder=8mm x 1.25mm thread , 28mm overall length
rear=10mm x 1.0 thread, 29mm overall length . More info found. Part #'s are apparently standardized. Front should be SB8125 , rear should be SB1010. There may be different suffixe's to indicate material (that is stainless or plated steel). Google these #'s and it will get you started in the right direction. :)

[rbm]

Super, thanks so much for the info!!  I've 10mm x 1.0mm speed bleeders on hand but no 8mm x 1.25mm.  Got to buy them in pairs as well.  Darn. >:(

[clubman]

Super, thanks so much for the info!!  I've 10mm x 1.0mm speed bleeders on hand but no 8mm x 1.25mm.  Got to buy them in pairs as well.  Darn. >:(

LOL! I had the same problem. When you get the extra 8mm fitting I'll buy it from you and put both of them on the front of my Sprint ST (Hyabusa 6 pots fitted-YEAH it do stop!). PM me.