Brakes-Would this work?


Information and questions on GL1100 Goldwings (1980-1983)
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Re: Brakes-Would this work?

Postby WingAdmin » Sat Jul 20, 2013 7:24 am



tunaboy wrote:Saw a site that said to "Bleed Backwards" The guy said to take a plastic ketchup or mustard bottle with the tapered end and put a plastic hose on the end and fill with DOT 3. You put the other end of the hose hose on the bleeder valve on the caliper. Open the bleeder on the caliper and gently squeeze the bottle to force the fluid from the caliper up to the master cylinder. You use a turkey baster to suck off the DOT 3 as it fills the master. I know that I could buy a vacuum pump for $25-$35 but I would never use it again. Will this method work?
Thx
Tuna


It will, and is the standard method used to bleed aircraft brakes. You do need to be sure that there are NO air bubbles in the fluid you are squirting in.



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RBGERSON
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Re: Brakes-Would this work?

Postby RBGERSON » Sat Jul 20, 2013 7:37 am

That's how always fill my brakes..but I have a big syringe the kind vets use to force food into dogs and cats..works perfectly and bleeding not needed as this process pushes any air ahead of the fluid.
HAD LOTS OF GOLDWING 75-83
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Re: Brakes-Would this work?

Postby NKYWinger » Sat Jul 20, 2013 9:37 am

:?: :?: OK - I understand the principle here. I guess the big question is: Is this a better method than using a Miti-Vac in the conventional manner? We all want/need good solid feeling brakes, and maybe this is a good way to go?
--John--

FTCS(SS) USN Ret.
'83 GL1100 Aspy (SOLD)
'03 GL1800
'08 Lees-ure Lite
GWRRA 339547 KY - 'G'
DS# 1547

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Re: Brakes-Would this work?

Postby WingAdmin » Thu Aug 01, 2013 11:01 pm

NKYWinger wrote: :?: :?: OK - I understand the principle here. I guess the big question is: Is this a better method than using a Miti-Vac in the conventional manner? We all want/need good solid feeling brakes, and maybe this is a good way to go?


I think it's simple enough to use the Mity-Vac to vacuum bleed the brakes.

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Re: Brakes-Would this work?

Postby NKYWinger » Fri Aug 02, 2013 7:11 am

I tried something that had been suggested to me -

Bleed normally, using a MitiVac, then pump and clamp down the brake pedal and lever overnight...
:!: :!: :!: Holy Smokes, what a wonderful difference :!: :!:

The brakes are as solid as a rock! I never thought this would work, but it does!


--John--

FTCS(SS) USN Ret.
'83 GL1100 Aspy (SOLD)
'03 GL1800
'08 Lees-ure Lite
GWRRA 339547 KY - 'G'
DS# 1547

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dank
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Re: Brakes-Would this work?

Postby dank » Fri Aug 02, 2013 8:12 am

Having several vehicles, and doing lots of brake jobs, I have used a Miti-Vac for years. Lately, my arthritis made it difficult to pump, pump, pump the Miti-Vac. Power vacuum pump prices were not an option. What to do? 12' of tubing connected to the Miti-Vac reservoir and the other end to the manifold vacuum of my Ranger via a "T" connector gives me enough vacuum to suck my system dry in seconds. I changed the brake fluid in all my vehicles just for fun.

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Re: Brakes-Would this work?

Postby RBGERSON » Fri Aug 02, 2013 8:18 am

Someone posted a thread about his homemade brake bleeder..tubing, shop vac, jar and some valves..with pics..
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

tunaboy
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Re: Brakes-Would this work?

Postby tunaboy » Fri Aug 02, 2013 8:34 am

Hey I am the guy who posed the original question and I was still having problems. Bought the Harbor Freight vaccum pump and my problems went away. I wish I would have invested in a pump sooner. I spent about $9 bucks trying to do it on the cheap. While the HF pump is not as nice as the Mighty Vac it did the job well. Buy a pump or find one you can borrow.
Tuna

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Re: Brakes-Would this work?

Postby GW-Newbie2013 » Fri Aug 02, 2013 6:05 pm

just throwing it out there...(mostly because I haven't a lot of money to throw out there)...but can I bleed brakes WITHOUT the use of any vacuums or pumps? I mean...just adding fluid and then doing the old fashioned "pump, pump, pump, open stopcock, then repeat"?

Granted it takes longer...but will it work?
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Re: Brakes-Would this work?

Postby WingAdmin » Fri Aug 02, 2013 10:52 pm

GW-Newbie2013 wrote:just throwing it out there...(mostly because I haven't a lot of money to throw out there)...but can I bleed brakes WITHOUT the use of any vacuums or pumps? I mean...just adding fluid and then doing the old fashioned "pump, pump, pump, open stopcock, then repeat"?

Granted it takes longer...but will it work?


Yes...but it's next to impossible to do if you have drained the system, and need to prime it.

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Re: Brakes-Would this work?

Postby RBGERSON » Sat Aug 03, 2013 7:38 am

WA..it's harder when the system is dry but if one cracks the banjo joint at the master and uses the overnight lever trick it works..at least has never failed me. pump..pump..pump
HAD LOTS OF GOLDWING 75-83
NOW INTO 1500'S..RIDING A 1998 SE

FAIR WINDS,
RB

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NKYWinger
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Re: Brakes-Would this work?

Postby NKYWinger » Sun Aug 04, 2013 3:39 pm

What he said! I'm a recent convert to the overnight method - it works better then anything I've ever tried..... give it a try!
--John--

FTCS(SS) USN Ret.
'83 GL1100 Aspy (SOLD)
'03 GL1800
'08 Lees-ure Lite
GWRRA 339547 KY - 'G'
DS# 1547

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Re: Brakes-Would this work?

Postby themainviking » Sun Aug 04, 2013 4:46 pm

Well, I just had a difficult one. Vacuum pumped it, no go. Syringed it in reverse, no go. Cracked the banjo at the handlebar master cylinder, no go. Overnight lever, no go. I finally took the lever off so I could get at the end of the brake pump on the handlebar master cylinder, and I got good hard brakes. Man I spent about four days looking up different strokes that different folks used, and found that a female Harley rider had done this one. Worked like a charm, as it gave me more distance at the lever pump than the lever could give me. Oh, a small note - I had totally drained the system and replaced the brake lines, which was probably why I was having these difficulties. I have worked on brakes many times over the past many years, but never got one as tough as this one. I thought I was going to have to buy a new master cylinder. The rear was a piece of cake, as I did not remove the fluid completely - I just changed the lines and vacuumed it and the new fluid came through slick as snot.

Results list on front brakes:

Vacuum Pump - no fluid movement
Syringe in reverse - no fluid movement
Cracking the banjo - got some leakage, but did not change anything
Overnight lever - did nothing I could observe
Direct pumping action with lever removed - pressured up and has stayed firm for a couple of weeks now, so far.


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