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10-25-2020, 05:10 AM | #21 |
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Re: 1940 Brake Bleeding
Atmospheric pressure only, that's why whoever is helping doesn't let the pedal up until you close the bleeder and tell them to let up. If not you suck air back into the slave cylinder and/or line when they let up on the pedal.
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10-25-2020, 06:05 AM | #22 |
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Re: 1940 Brake Bleeding
The original poster has installed 'Speed bleeders' so sucking air back into the system is not a factor.
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10-25-2020, 06:23 AM | #23 |
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Re: 1940 Brake Bleeding
Coopman...that Korbel note was funny as I had a guy in Germany who drank that and I always stayed with the Jack.
So....my brake pedal has gone to the floor several times in this long process. Have I created some damage in doing so ? Drum is going on this morning and I'm going to start the process over again. Once again.....you fill the master.....pump the pedal.....and turn off the speed bleeder as you refill the master and then turn on the bleeder while I pump the pedal again ? Am I getting that correct ? It's 33º here now and I hope I don't have to start drinking again this morning !! Thx much..... Mike |
10-25-2020, 07:38 AM | #24 | |
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Re: 1940 Brake Bleeding
Quote:
You should not have to add brake fluid at this point but check it and add if necessary. NOW go to opposite side and do the same.
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10-25-2020, 08:49 AM | #25 | |
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Re: 1940 Brake Bleeding
Quote:
Bill |
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10-25-2020, 09:01 AM | #26 |
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Re: 1940 Brake Bleeding
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You seem to use a different method of bleeding brakes than I do. I have never used speed bleeders or any other aids like that. Been doing brakes from the time I was around 14 and have never had the slightest problem bleeding them. The way I have always done them you apply a lot of foot pressure on the brake pedal, crack the bleed screw, then retighten it. I'm sure there are other ways to go about it, but so far I'll stick with what has worked 100% of the time for me. Last edited by JSeery; 10-25-2020 at 04:31 PM. |
10-25-2020, 09:10 AM | #27 |
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Re: 1940 Brake Bleeding
Never having used Speed-bleeders; how do you tell when there are no more air bubbles?
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10-25-2020, 09:19 AM | #28 | |
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Re: 1940 Brake Bleeding
Quote:
'Speed bleeders' are a different animal. The pedal is depressed while the bleeder is open and without pre-pumping to build up pressure. Then, after a few pumps and with the pedal in the return position, the bleeder is closed without ever putting pressure on the wheel cylinder. This is possible because the bleeder has a check valve built in so that on the back stroke no air is allowed to be sucked back into the system, like standard bleeders that have to be closed after each stroke.
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10-25-2020, 09:21 AM | #29 |
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Re: 1940 Brake Bleeding
By looking at the clear drain tube, if you choose to.
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10-25-2020, 11:09 AM | #30 |
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Re: 1940 Brake Bleeding
Mike 42: When you get done bleeding you'll probably want to adjust your brakes for optimum performance.
This thread tells how. I use a 2 x 4 and a bathroom scale as a pedal jack. Don't forget to also adjust your emergency brake. https://www.fordbarn.com/forum/showt...40+ford+brakes |
10-25-2020, 11:49 AM | #31 | |
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Re: 1940 Brake Bleeding
Quote:
I believe my quote is perhaps the best way I am able to respond...
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10-25-2020, 02:27 PM | #32 |
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Re: 1940 Brake Bleeding
I think BEFORE I bled the brakes I would adjust them??
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10-25-2020, 02:41 PM | #33 |
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Re: 1940 Brake Bleeding
W O W..... 32 posts, just to bleed f-n brakes? I just finished brakes on a 52 Willys, starting with a completely 'open', 'empty' system. Took about two of those small cans. Never knew I had to know all that is posted here. Whew... I'm exhausted.
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10-25-2020, 03:08 PM | #34 |
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Re: 1940 Brake Bleeding
Funny/Sad/Spot-on! WHEW....I feel kind'a 'whooped' now, too! DD
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10-25-2020, 03:14 PM | #35 |
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Re: 1940 Brake Bleeding
Guys I worked on it today and it’s getting better but we have snow coming in northern Michigan the next couple days. Barn not heated so I think this will have wait til Spring. I appreciate all the help and I’ll be back in touch. I saved all this info to refer to in Spring.
Thx.....Mike |
10-25-2020, 03:48 PM | #36 |
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Re: 1940 Brake Bleeding
Mike, Wow, i looked on the map and you are pretty far North. Can you buy a little space heater and get the job done before spring?
I know that's easy for me to say living in FL where its 78 right now. Any neighbors who could help you? |
10-25-2020, 04:34 PM | #37 |
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Re: 1940 Brake Bleeding
Can't disagree with that!
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10-25-2020, 04:49 PM | #38 |
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Re: 1940 Brake Bleeding
Fordy..... I live on a big Lake up here and only have a couple of neighbors through the Winter season. In fact we have 2 ladies pass away this last month and there’s really no one around. I’ll probably try to work a little bit with the heater I’ve got but it’s pretty cold and snow tonight and morning. I’ll advise.
Thx........Mike |
10-25-2020, 06:54 PM | #39 |
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Re: 1940 Brake Bleeding
speedbleeders are one of the best things I ever bought. After reassembling the diff and installing it I pumped the pedal slowly, always slowly and not all the way to the floor on a single circuit system. Cracked the far RHS bleeder open and I heard a rush of air, then a further 5 pumps making sure the clear tube has fluid with no air lock it off over to the other side 5 pumps done! Didn't even worry about the front, nice hard pedal and all done myself, easy.
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10-25-2020, 07:40 PM | #40 | |
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Re: 1940 Brake Bleeding
Quote:
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