Replacement brakes for 1983 scamp 13? - Fiberglass RV


Reply
 
Thread Tools Search this Thread Display Modes
 
Old 08-12-2015, 01:58 PM   #1
Member
 
Name: Jim
Trailer: Scamp 13 & TDI tugboat
Ohio
Posts: 99
Replacement brakes for 1983 scamp 13?

Been searching for hours, but can't find any info, so here's the question:
Is there a source for replacement brake assemblies for a 1983 Scamp 13 that came from the factory with 7" electric drums?

Backstory:
When I got the Scamp a few years ago, the droopy torsilastic axle was replaced w/ a new Dexter 2200# axle w/ brake flanges. The original brakes & drums were moved over to the new axle, since the brakes did not look like they had been used. With new Timken bearings, a good brake controller and correctly adjusted brakes everything worked great for 2 years.

On our trip a few weeks ago, a squeaky sound was heard from one side of the trailer brakes, and that hub/drum was too hot to touch. Pulling the drum revealed the shoe linings had failed their glue bonds, the linings banged around inside the drum, knocked the return spring and adjuster loose, which got stuck between the drum & shoes. It was total carnage of brake shoes, spring & adjuster on that side. Drum was OK, just had a couple grooves. Other side was about to suffer the same delaminated lining fate. Removing loose pieces from bad side and disconnecting brake controller fixed the problem so we could continue on our trip.

The original shoes measured 7 x 1-1/2". The new loaded brake assemblies all measure 7 x 1-1/4", but everybody said they would fit, the shoes would just be not quite the width of the drum. Well, they are wrong. The backing plates themselves are dramatically different. The new backing plates are much more offset, so they pull the shoes about 1/2way out of the drum, and the magnet can't reach the inner face of the drum.

What's stumped me is that this is a new Dexter axle w/ standard brake flanges installed. Why do the new brakes not line up, and where does one source the correct brake assemblies?

Any info is much appreciated.
__________________

__________________
Cheers,
Jim C
FJ40Jim is offline   Reply With Quote
Old 08-12-2015, 02:51 PM   #2
Senior Member
 
Name: Darwin
Trailer: 2002 19 ft Scamp 19 ft 5th Wheel
Posts: 3,030
Send a message via Yahoo to Darwin Maring
Try Northern Tools
Tow Zone Electric Drum Brake Kit Pair, 10in., Model# 56125 | Drum Brakes| Northern Tool + Equipment
__________________

__________________
Darwin Maring is offline   Reply With Quote
Old 08-12-2015, 03:12 PM   #3
Senior Member
 
floyd's Avatar
 
Name: Floyd
Trailer: 2004 13 ft Scamp Custom Deluxe
IllAnnoy
Posts: 6,046
Registry
Your original axle had a straight 1" spindle, a new one has a straight 1-1/16" spindle. The visual key is that the magnets are different shapes.
Good news is that you can buy a complete brake kit including bearings and seals for well under $200.
__________________
floyd is offline   Reply With Quote
Old 08-13-2015, 09:02 AM   #4
Member
 
Name: Jim
Trailer: Scamp 13 & TDI tugboat
Ohio
Posts: 99
Fayette electric trailer brakes!

Thanks for the responses guys.

Some updated info: The original brakes on my 1983 Scamp are 7-1/4" diameter x 1-1/2" wide Fayette electric brakes. I've never heard of them before. They were going obsolete in 1983, so there seems to be zero parts availability now, 32 years later. If it was only the shoes that had de-bonded, they could be relined and the brakes would be ready for another 30 years, but there is still the issue of the destroyed adjuster & return spring. It looks like those parts can be fabricated by copying the good parts that remain on the other side of the trailer. I will post more info here as I get it.
__________________
Cheers,
Jim C
FJ40Jim is offline   Reply With Quote
Old 08-13-2015, 02:07 PM   #5
Member
 
Name: Jim
Trailer: Scamp 13 & TDI tugboat
Ohio
Posts: 99
Further brake updates:
Nobody in central Ohio does automotive brake relining anymore, only giant semi-truck shoes.

Found a very friendly shop in Indiana that says it's no problem to reline & radius grind these little shoes. Should be $60 for the set of 4.

Their page:
http://brakematerialsandparts.webs.com/

Will post up when the parts are back & reinstalled.
__________________
Cheers,
Jim C
FJ40Jim is offline   Reply With Quote
Old 08-13-2015, 11:15 PM   #6
Senior Member
 
Perry J's Avatar
 
Name: John
Trailer: 16' Casita
California
Posts: 975
Send a message via AIM to Perry J Send a message via Yahoo to Perry J
Quote:
Originally Posted by FJ40Jim View Post
Further brake updates:
Nobody in central Ohio does automotive brake relining anymore, only giant semi-truck shoes.

Found a very friendly shop in Indiana that says it's no problem to reline & radius grind these little shoes. Should be $60 for the set of 4.

Their page:
http://brakematerialsandparts.webs.com/

Will post up when the parts are back & reinstalled.
I just checked in my Northern Tool catalogue and a complete pair of 7 inch electric brakes is $114.99, the same price for 10" brakes.

They come already mounted on a new backing plate that will bolt right up to your axel.

Over the last 10 years I have ordered 5 sets of electric brakes and never had a problem.

Check on line at NorthernTool.com.

Good luck,
John
__________________
Perry J is offline   Reply With Quote
Old 08-14-2015, 10:44 AM   #7
Senior Member
 
Name: Steve
Trailer: Scamp 13
California
Posts: 1,418
I would think that if you replaced the backing plate and shoe assembly with the new Dexter backing plates you would also have to replace the Fayette drums with the Dexter drums to match the Dexter backing plates and brake shoes.
__________________
stevebaz is offline   Reply With Quote
Old 08-14-2015, 01:02 PM   #8
Senior Member
 
Perry J's Avatar
 
Name: John
Trailer: 16' Casita
California
Posts: 975
Send a message via AIM to Perry J Send a message via Yahoo to Perry J
Quote:
Originally Posted by stevebaz View Post
I would think that if you replaced the backing plate and shoe assembly with the new Dexter backing plates you would also have to replace the Fayette drums with the Dexter drums to match the Dexter backing plates and brake shoes.

Drums are generic.
A 7 inch brake takes a 7 inch drum.
I have replaced the brakes on several Scamps I have refurbished.
__________________
Perry J is offline   Reply With Quote
Old 08-15-2015, 10:20 AM   #9
Member
 
Name: Jim
Trailer: Scamp 13 & TDI tugboat
Ohio
Posts: 99
Yes, changing from 7-1/4" down to new, smaller 7" Dexter brake assemblies would require buying new 7" drums as well. Since the only thing wrong with the brakes is the bad shoes, we will just replace the shoes for now.
__________________
FJ40Jim is offline   Reply With Quote
Old 08-15-2015, 08:58 PM   #10
Senior Member
 
Perry J's Avatar
 
Name: John
Trailer: 16' Casita
California
Posts: 975
Send a message via AIM to Perry J Send a message via Yahoo to Perry J
Quote:
Originally Posted by FJ40Jim View Post
Yes, changing to new, smaller Dexter brakes would require buying new drums as well. Since the only thing wrong with the brakes is the bad shoes, we will just replace the shoes for now.
I dropped the 1/4.
You will not need new drums.
The brake assemblies are complete with new magnets.

Bolt the backing plates on and hook up the wires.
__________________
Perry J is offline   Reply With Quote
Old 08-15-2015, 09:28 PM   #11
Member
 
Name: Jim
Trailer: Scamp 13 & TDI tugboat
Ohio
Posts: 99
I already bought a pair of the 7" brake assemblies. They do not fit the 7-1/4" drums, in either diameter or width.
__________________
Cheers,
Jim C
FJ40Jim is offline   Reply With Quote
Old 09-01-2015, 10:13 AM   #12
Member
 
Name: Jim
Trailer: Scamp 13 & TDI tugboat
Ohio
Posts: 99
Fayette 7-1/4" brakes fixed

Quoting myself:
Quote:
Is there a source for replacement brake assemblies for a 1983 Scamp 13 that came from the factory with 7" electric drums?
No, because the factory brakes on this trailer are 7-1/4", which is a non-standard size nowadays.

Comparison of OE Fayette 7-1/4" x 1-1/2" shoe and new Dexter style 7" x 1-1/4" shoe.




Quote:
On our trip a few weeks ago, a squeaky sound was heard from one side of the trailer brakes, and that hub/drum was too hot to touch. Pulling the drum revealed the shoe linings had failed their glue bonds, the linings banged around inside the drum, knocked the return spring and adjuster loose, which got stuck between the drum & shoes. It was total carnage of brake shoes, spring & adjuster on that side. Drum was OK, just had a couple grooves.
This is what fell out when the drum was pulled off. Shoe linings, mangled spring & adjuster.




Quote:
The original shoes measured 7 x 1-1/2". The new loaded brake assemblies all measure 7 x 1-1/4", but everybody said they would fit, the shoes would just be not quite the width of the drum. Well, they are wrong. The backing plates themselves are dramatically different. The new backing plates are much more offset, so they pull the shoes about 1/2way out of the drum, and the magnet can't reach the inner face of the drum.
This pic shows the different depth of the backing plates. Fortunately, these loaded 7" brake assemblies were super cheap on ebay. Unfortunately they cannot be returned.
Fortunately the adjuster, adjuster plugs, wiring, springs and mounting hardware were used to fix the OE brakes.

__________________
Cheers,
Jim C
FJ40Jim is offline   Reply With Quote
Old 09-01-2015, 10:56 AM   #13
Member
 
Name: Jim
Trailer: Scamp 13 & TDI tugboat
Ohio
Posts: 99
The original shoes were pulled off and mailed to Brake Materials & Parts
in Ft. Wayne, IN.



Shipping each way only took a day or two, and they got the job done in a few days. The shoes were sandblasted, new linings were glued on, painted, radius ground to match the 7.256" ID of the drums. Cost ~$80 with shipping. A week later, these beauties arrived back at the shop:



While the shoes were off at the spa, the other parts were cleaned & serviced.

The actuator arms & magnets were in good shape, just needing cleaning. But I don't like the way the wires went through the backing plate in a solid strain relief. This is acceptable for a table lamp that doesn't go down the road. For a bouncing, vibrating environment, the solid strain relief merely provides a focus for all the movement of the wires. So these were discarded, along with most of the brake wire.



Ox-gard is used on EVERY wire connection & light bulb on the trailer.


Note how the wires are cut in a staggered fashion so the 2 butt splices don't end up right next to each other.


The wire & nylon fingertrap loom was borrowed from the dexter magnets. The nylon loom is VERY tough, and can just lay through the backing plate, so the wire can flex along it's length, rather than flexing right at the backing plate.
__________________
Cheers,
Jim C
FJ40Jim is offline   Reply With Quote
Old 09-01-2015, 11:23 AM   #14
Member
 
Name: Jim
Trailer: Scamp 13 & TDI tugboat
Ohio
Posts: 99
Reassembly

Reassembling the oddball Fayette 7.25" electric brakes.

Actually, the thing that makes these odd is they are a miniaturized version of the 10 or 12" brakes, which is a more robust & effective system.

Apply hi-temp grease to the brake arm pivot and the stamped tab that the center of the brake arm rests against. Place the arm in position and feed the brake wire through the hole in the plate.



Grease the contact points for the shoes: raised bosses on the plate, top pin, square driver on arm... Put shoes in place and then place hold-down springs. The special tool to grab the hold down springs is one end of the return spring. A small vise-grip is handy to manipulate the stiff springs.


Spread the bottom of the shoes slightly and insert a thoroughly greased adjuster, followed by the small return spring. Then use the small vise-grip again to grab the big return spring and get it in position. No pics in process, not enough hands. Note the orientation of the upper spring so coil is away from actuator arm, and lower spring is in holes that are away from the backing plate. Should look like this when done:


Back side should look like this. Verify that the wire is coming through & not kinked, adjuster is accessible through slot, hold-downs are fully seated in plate.
__________________

__________________
Cheers,
Jim C
FJ40Jim is offline   Reply With Quote
Reply

Tags
brakes, scamp


Currently Active Users Viewing This Thread: 1 (0 members and 1 guests)
 
Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

BB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Trackbacks are Off
Pingbacks are Off
Refbacks are Off


Similar Threads
Thread Thread Starter Forum Replies Last Post
U-haul CT13 axle replacement with brakes, price in N. CA Lindl Towing, Hitching, Axles and Running Gear 16 10-16-2012 02:23 PM
Floor replacement in a 1983 Beachcomer Michael Murphy Care and Feeding of Molded Fiberglass Trailers 1 08-30-2009 11:01 AM
brakes or no brakes Penney H. & Mike E. Towing, Hitching, Axles and Running Gear 17 08-13-2007 03:35 PM
SOLD - 1983 19' 5th Wheel Scamp Tara Classified Archives 1 01-31-2007 04:27 PM
1983 Scamp towing hook up.. jimtesla Modifications, Alterations and Updates 3 07-31-2006 08:33 AM

» Upcoming Events
No events scheduled in
the next 465 days.
» Virginia Campgrounds

Reviews provided by


Copyright 2002- Social Knowledge, LLC All Rights Reserved.

All times are GMT -6. The time now is 12:38 AM.


Powered by vBulletin® Version 3.8.8 Beta 1
Copyright ©2000 - 2017, vBulletin Solutions, Inc.