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Old 09-25-2020, 06:36 PM   #21
rbone
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Default Re: 1940 Front Wheel Cylinders

Here are the part numbers if you decide to buy new. Surprisingly, you can get them on RockAuto, and they are less expensive there.

Wheel cylinder front left 8264 (should include crush washer for hose fitting)
Wheel cylinder front right 8265 (should include crush washer for hose fitting)
Wheel cylinder rear left 8266
Wheel cylinder rear right 8267
Master cylinder M1050 (crush washers are 15mm for outlet banjo bolt)
Front hoses BH7600 (requires 2)

I also bought new shoes from them, and they fit perfectly.
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Old 09-26-2020, 07:49 AM   #22
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Default Re: 1940 Front Wheel Cylinders

Hmmmmm....no leak this morning and brake pedal is solid !! The drama continues !!
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Old 09-26-2020, 07:52 AM   #23
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Default Re: 1940 Front Wheel Cylinders

rbone ...

Thx for the info. I was thinking about Rock and I may give them a try. Right now I have to figure out why there is no leak this morning. This is strange as hell. Thx again for the info about Rock Numbers !

Mike
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Old 09-26-2020, 02:09 PM   #24
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Default Re: 1940 Front Wheel Cylinders

What fluid are you using??
Paul in CT
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Old 09-30-2020, 10:24 AM   #25
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Default Re: 1940 Front Wheel Cylinders

Paul.....DOT 3 .....waiting for the second drum to be cut. Found the leak problem and all set right now.
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Old 09-30-2020, 03:12 PM   #26
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Default Re: 1940 Front Wheel Cylinders

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Good news ! !
Paul in CT
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Old 10-01-2020, 04:59 PM   #27
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Default Re: 1940 Front Wheel Cylinders

Quote:
Originally Posted by JSeery View Post
Mike, the longer shoe (more brake liner material) goes toward the front on Lockheed brakes.
Normally the longer shoe goes to the rear, are the lockheed brakes different than, lets say bendix or any other shoe brand? Just asking
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Old 10-01-2020, 05:28 PM   #28
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Default Re: 1940 Front Wheel Cylinders

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Normally the longer shoe goes to the rear, are the lockheed brakes different than, lets say bendix or any other shoe brand? Just asking
Yes, Lockheed is a double anchor design; while Bendix is a single anchor, self-energizing design.

If you look at the Lockheed brake the front shoe pushes into it's anchor and does the most of the work when stopping; thus the larger piston and longer lining.

With the Bendix brake the leading shoe drives into the trailing shoe which pushes into the anchor; the trailing shoe does more of the work so the lining is longer.
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Old 10-01-2020, 08:52 PM   #29
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Default Re: 1940 Front Wheel Cylinders

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Originally Posted by earlyride View Post
Normally the longer shoe goes to the rear, are the lockheed brakes different than, lets say bendix or any other shoe brand? Just asking
What Rich posted. This throws a lot of people that are not familiar with the lockheed brakes.

Last edited by JSeery; 10-04-2020 at 02:29 PM.
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Old 10-04-2020, 11:07 AM   #30
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Default Re: 1940 Front Wheel Cylinders

Guys the drawings and manual i have show the larger shoe to the front. That’s the way they came off. I don’t know if I have Bendix or Lockheed though. Don’t understand the difference sorry ! Geez....I got everything together and have a seal leak at the larger end of cylinder. Just took it all apart again. I have new plunger seals and will try another one and hone out a bit more too. What a learning process this is !!!!!
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Old 10-04-2020, 01:41 PM   #31
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Default Re: 1940 Front Wheel Cylinders

If the wheel cylinder has a larger piston on the front end, you have Lockheed brakes...
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Old 10-04-2020, 02:32 PM   #32
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Default Re: 1940 Front Wheel Cylinders

Quote:
Originally Posted by mike42 View Post
Guys the drawings and manual i have show the larger shoe to the front. Thatís the way they came off. I donít know if I have Bendix or Lockheed though. Donít understand the difference sorry ! Geez....I got everything together and have a seal leak at the larger end of cylinder. Just took it all apart again. I have new plunger seals and will try another one and hone out a bit more too. What a learning process this is !!!!!
Unless they have been changed out, all the pre-49 Ford cars are Lockheed brakes. You really need to know which are which, because the way they are adjusted are very different. If you are using a manual for the correct time period that should be giving you the correct information.
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Old 10-04-2020, 05:49 PM   #33
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Default Re: 1940 Front Wheel Cylinders

Guys I hope the manual is correct as I don’t want to go through this again ! Everything put back together and will bleed the brakes tomorrow after golf. The leak was because the top end of the shoe that fits into the plunger slot in cylinder was not in correctly. My fault for not seeing it. Using speed bleeders and I heard they’re pretty good. I have the rears to do in Spring.

Thx for all the info.

Mike
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Old 10-04-2020, 08:34 PM   #34
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Default Re: 1940 Front Wheel Cylinders

You really can't mix up Lockheed and Bendix brakes, they are so different it is totally obvious. You should be fine. Only catch is Lockheed brakes can be a lot more difficult to set up, so be sure your manual has detailed instructions and if not, ask here on the Barn. Someone can provide you with the adjustment procedures.
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Old 10-05-2020, 02:59 PM   #35
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Default Re: 1940 Front Wheel Cylinders

I checked with a car guy buddy of mine and he said I have Lockheed thank God !! Don't want to go through this again trust me ! Things "Can" get screwed up if you don't know what you're doing !!

The second wheel cylinder is leaking and I can't stop it, so I ordered 2 wheel cylinders today. Should have done that at the beginning, but how did I know !!

Thx much !

Mike
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Old 10-08-2020, 07:35 AM   #36
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Default Re: 1940 Front Wheel Cylinders

New Wheel Cylinders arrive tomorrow. I went ahead and bought a new Master Cylinder from NAPA and going to attempt that installation today. Have to Bench Bleed before I do though.

Anything I should look out for when installing the Master ?

Thx....Mike
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Old 10-08-2020, 08:07 AM   #37
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Default Re: 1940 Front Wheel Cylinders

Be cautious and watch the wheel cylinders while bleeding to be sure they don’t leak past the cup. Most new ones being sold are pretty poor quality depending on where you get them
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Old 10-08-2020, 12:07 PM   #38
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Default Re: 1940 Front Wheel Cylinders

35....I bought them from C & G and I've had good luck with their products, but I will check. Any hints on how to bleed the Master ?

Thx....Mike
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Old 10-08-2020, 02:26 PM   #39
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Default Re: 1940 Front Wheel Cylinders

C&G does sell decent cylinders. I dont bench bleed the master cylinder personally. I just install fill and bleed the brakes as normal.
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Old 10-08-2020, 03:20 PM   #40
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Default Re: 1940 Front Wheel Cylinders

I've never bench bled the single master cylinders and haven't had any issues. Dual masters... now THAT is another matter.
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