|
Sponsored Links (Register now to hide all advertisements) |
|
|
Thread Tools | Display Modes |
08-22-2017, 10:15 PM | #1 |
Senior Member
Join Date: May 2010
Location: Lakewood, CO
Posts: 413
|
'39-'41 brake help
Took my car out for the maiden voyage today and encountered a few problems to sort out. I have '39-'41 brakes all around, fresh turned drums, new shoes that were fitted to the drums. When I push the brake pedal to stop it surges like disc brakes do when they are warped. Any ideas?
|
08-23-2017, 01:47 AM | #2 |
Senior Member
Join Date: Aug 2012
Location: Perth, Western Australia
Posts: 2,687
|
Re: '39-'41 brake help
If the linings were fitted to the drums properly the only thing I can think of is just adjustment then ..?
__________________
"Came too close to dying to stop living now!" |
Sponsored Links (Register now to hide all advertisements) |
|
08-23-2017, 02:14 AM | #3 |
Senior Member
Join Date: Apr 2015
Location: Sweden
Posts: 3,045
|
Re: '39-'41 brake help
Not properly set up when they turned your drums...or a hub/axle being bent ??
If you turn the drums over by hand and hear they ocassionally hit the linings something is not centered. |
08-23-2017, 05:14 AM | #4 |
Senior Member
Join Date: Feb 2011
Location: SUNSHINE MD.
Posts: 318
|
Re: '39-'41 brake help
Did you have the new shoes arched to fit the drums it is hard to find a shop to do this.did you center your shoes using eccentrics at the bottom before adjusting .if you go,to search there are instructions on adjusting these brakes . Brake adjusting. Or maybe someone on here can bring up the adjustment procedure.
|
08-23-2017, 07:22 AM | #5 |
Senior Member
Join Date: May 2010
Location: Coral Springs FL
Posts: 10,942
|
Re: '39-'41 brake help
These tell how to adjust brakes.
https://www.fordbarn.com/forum/showt...40+ford+brakes and http://www.btc-bci.com/~billben/brakeadj |
08-23-2017, 09:17 AM | #6 |
Senior Member
Join Date: May 2010
Location: Lakewood, CO
Posts: 413
|
Re: '39-'41 brake help
Sponsored Links (Register now to hide all advertisements)
|
08-23-2017, 12:21 PM | #7 |
Senior Member
Join Date: Jun 2010
Location: San Antonio, Texas
Posts: 16,431
|
Re: '39-'41 brake help
Modern brake lathes are not always set up to turn the old Ford drums due to the small diameter through size of the hubs and the fact that very few cars even have drums anymore. If a drum isn't centered up correctly, the cut will make the friction surface off center. This can not be compensated for by any adjustment of the shoes. I'd be wanting to know how those drums were centered up for the lathe.
|
08-23-2017, 12:31 PM | #8 |
Senior Member
Join Date: Apr 2015
Location: Sweden
Posts: 3,045
|
Re: '39-'41 brake help
Easiest way of finding out if the drum is centered is backing of the shoes then adjust one in so it just touches when drum is turned by hand...if the drag is uneven when turned you are not centered...this is a corse quick check and if it indicates you have an issue get the dial indicator out and measure.
|
08-23-2017, 08:52 PM | #9 |
Senior Member
Join Date: Apr 2017
Location: Texas Gulf Coast
Posts: 727
|
Re: '39-'41 brake help
My 41 did the same thing, like it was pushing back at the pedal, I had drums turned, new shoes, adjusted every way possible. Bent axle was my problem. Changed out axle, got new hubs and drums, works good now, costly but good. Al
|
08-23-2017, 09:17 PM | #10 |
Senior Member
Join Date: May 2010
Location: Sugar Land, TX
Posts: 4,395
|
Re: '39-'41 brake help
I gave up on Ford lockheed brakes and never looked back. The repro bendix rear brakes and front discs work so much better and are way easier to adjust.
__________________
41 woodie https://41fordwoodie.weebly.com/ |
08-23-2017, 09:54 PM | #11 |
Member Emeritus
Join Date: Nov 2012
Location: Wichita KS
Posts: 16,132
|
Re: '39-'41 brake help
I like the bendix f1/f100 option on the front. You can go with the current Lincolns if you don't want to bother locating the original hubs and backing plates.
|
08-24-2017, 09:24 PM | #12 |
Senior Member
Join Date: May 2010
Location: Lakewood, CO
Posts: 413
|
Re: '39-'41 brake help
Found the problem. I pulled both drums and spun them on a spindle held by a vice, both perfect. Put everything back together, adjusted brakes, all good. Went to bolt up my wheels and same thing happened. Turns out the rings I bought here on the Barn to mount Kelsey's to '40 drums are to thin. When you tighten the lugs it distorts the drum. Need to get some thicker ones and should work fine. I bolted up a '40 wheel and had no problems.
|
08-24-2017, 09:38 PM | #13 |
Senior Member
Join Date: Aug 2012
Location: Perth, Western Australia
Posts: 2,687
|
Re: '39-'41 brake help
Fixed!
__________________
"Came too close to dying to stop living now!" |
08-25-2017, 02:04 AM | #14 |
Senior Member
Join Date: May 2010
Location: Solihull, England.
Posts: 8,750
|
Re: '39-'41 brake help
Is the wheel fouling on a welded on weight?
Good that you have zoomed in on the cause of the problem. Mart. |
08-25-2017, 07:16 AM | #15 |
Senior Member
Join Date: Dec 2014
Location: Upper Peninsula, Michigan
Posts: 604
|
Re: '39-'41 brake help
Ring thickness dimension needed for support is around .1875" (3/16").
See if your spoke ends where they're peaned to round on the inside, (where the wheel mounts to the drum side) Are the spoke ends touching (interfering) with the brake drums. If so this is a potential area of distortion. |
08-25-2017, 09:51 AM | #16 |
Senior Member
Join Date: May 2010
Location: Lakewood, CO
Posts: 413
|
Re: '39-'41 brake help
Ring thickness dimension needed for support is around .1875" (3/16").
See if your spoke ends where they're peaned to round on the inside, (where the wheel mounts to the drum side) Are the spoke ends touching (interfering) with the brake drums. If so this is a potential area of distortion. Thanks, the spoke ends are the problem, not the center ring. |
|
|
Sponsored Links (Register now to hide all advertisements) |
|