Terminal Block tightening?

Discuss all things Model T related.
Forum rules
If you need help logging in, or have question about how something works, use the Support forum located here Support Forum
Complete set of Forum Rules Forum Rules
User avatar

Topic author
ArthurB
Posts: 75
Joined: Wed Jan 09, 2019 5:22 pm
First Name: Arthur
Last Name: Babitz
* REQUIRED* Type and Year of Model Ts owned: 1927ish Roadster Pickup
Location: Hood River, Oregon
Board Member Since: 2018

Terminal Block tightening?

Post by ArthurB » Wed Feb 27, 2019 6:28 pm

As an EE I couldn't tolerate the messy wiring of my 1927 Roadster so I yanked everything, installed a terminal block (and fuse) at the firewall and then rewired all with proper wires. The only part which I'm not satisfied with is the terminal block itself. I bought it from Langs, it has 6 positions and is rubber coated with #6 machine screws. My question is: how do I make sure the screws don't back out with vibration? Under each screw I have an internal tooth lockwasher, a washer, 2 ring terminals, and another washer. But since it's tightening against a rubber lining, no matter how tight I screw it in it seems like it can just shake itself loose over time. I can't get it tight enough so the wires can't move, and as soon as you wiggle a wire I imagine the screw will loosen.

I've never used thread locker on a terminal block before, but it's awfully tempting. What's the consensus on this? Am I imagining a problem that isn't there, or what is the solution to keep my wires from shaking loose?

User avatar

RajoRacer
Posts: 4357
Joined: Sun Jan 06, 2019 12:18 pm
First Name: Steve
Last Name: Tomaso
* REQUIRED* Type and Year of Model Ts owned: 1914 Touring, 1919 Centerdoor, 1924 TT C-Cab Express, 1925 Racer
Location: Longbranch, WA
MTFCA Number: 14972
MTFCI Number: 15411
Board Member Since: 2001

Re: Terminal Block tightening?

Post by RajoRacer » Wed Feb 27, 2019 6:43 pm

Blue Loktite is every Model T's friend !!!


Original Smith
Posts: 3298
Joined: Tue Jan 08, 2019 10:43 am
First Name: Larry
Last Name: Smith
* REQUIRED* Type and Year of Model Ts owned: 13 Touring, 13 Roadster, 17 Coupelet, 25 Roadster P/U
Location: Lomita, California
MTFCA Number: 121
MTFCA Life Member: YES
MTFCI Number: 16310

Re: Terminal Block tightening?

Post by Original Smith » Wed Feb 27, 2019 6:57 pm

If you use one of our exact reproduction terminal blocks, you won't have to worry, but they are twice as expensive as the rubber ones.


Allan
Posts: 5256
Joined: Sun Jan 06, 2019 7:21 pm
First Name: Allan
Last Name: Bennett
* REQUIRED* Type and Year of Model Ts owned: 1912 van, 1917 shooting brake, 1929 roadster buckboard, 1924 tourer, 1925 barn find buckboard, 1925 D &F wide body roadster, 1927LHD Tudor sedan.
Location: Gawler, Australia

Re: Terminal Block tightening?

Post by Allan » Wed Feb 27, 2019 9:25 pm

Arthur, an EE is a desirable late model T crankshaft. Are you admitting to being an old crank?

Allan from down under.

User avatar

RustyFords
Posts: 1559
Joined: Sun Jan 06, 2019 11:16 am
First Name: Don
Last Name: Allen
* REQUIRED* Type and Year of Model Ts owned: 1924 Touring
Location: Houston, TX
MTFCA Number: 50001

Re: Terminal Block tightening?

Post by RustyFords » Wed Feb 27, 2019 9:29 pm

Original Smith wrote:
Wed Feb 27, 2019 6:57 pm
If you use one of our exact reproduction terminal blocks, you won't have to worry, but they are twice as expensive as the rubber ones.
I bought one of the exact reproductions that Larry's speaking of and it tightened up nicely.
1924 Touring

User avatar

Steve Jelf
Posts: 6496
Joined: Fri Jan 04, 2019 9:37 pm
First Name: Steve
Last Name: Jelf
* REQUIRED* Type and Year of Model Ts owned: 1923 touring and a few projects
Location: Parkerfield, Kansas
MTFCA Number: 16175
MTFCI Number: 14758
Board Member Since: 2007
Contact:

Re: Terminal Block tightening?

Post by Steve Jelf » Wed Feb 27, 2019 10:29 pm

A few years ago Bob Bergstadt was selling NOS terminal blocks. I don't know if he has any left.
The inevitable often happens.
1915 Runabout
1923 Touring

User avatar

George N Lake Ozark
Posts: 324
Joined: Sun Jan 06, 2019 2:15 pm
First Name: George P
Last Name: Clipner
* REQUIRED* Type and Year of Model Ts owned: Late '26 Touring
Location: LakeOzark,Missourah
MTFCI Number: 18665

Re: Terminal Block tightening?

Post by George N Lake Ozark » Wed Feb 27, 2019 10:39 pm

I have the repo orig style Larry was referring to. The only problem I had was one of the screws was stripped, so I went the the hardware store and got one a little longer and slightly thicker. After 4 years in Calif and 3 here in Missourah , no problems with loosening.

User avatar

Topic author
ArthurB
Posts: 75
Joined: Wed Jan 09, 2019 5:22 pm
First Name: Arthur
Last Name: Babitz
* REQUIRED* Type and Year of Model Ts owned: 1927ish Roadster Pickup
Location: Hood River, Oregon
Board Member Since: 2018

Re: Terminal Block tightening?

Post by ArthurB » Thu Feb 28, 2019 2:03 pm

Thanks guys, I think the Langs and Snyders catalogs sent me a bit astray here. Both of them indicate the "original style" terminal block is for show cars, which sure isn't me, so I didn't read any further. If I'm reading it correctly the "original style" terminal blocks are much harder rubber, and wood screws instead of machine screws. Is that about the size of it?

User avatar

Novice
Posts: 584
Joined: Tue Jan 08, 2019 12:25 pm
First Name: Jim
Last Name: Davis
* REQUIRED* Type and Year of Model Ts owned: 1926 Touring. 1923/26 Open Express. 1920 depot hack
Location: Tomball,Texas
MTFCA Number: 49832
MTFCI Number: 24686
Board Member Since: 2017

Repairing stripped out terminal Block screws.

Post by Novice » Thu Feb 28, 2019 3:02 pm

I had a problem with intermittent headlights,horn and Generator charging. Found the yellow battery lead terminal had got hot and was discolored. had melted plastic insulation starting to show at the terminal lug. I found the terminal screws on the yellow and green wire's were stripped and would snug up but not tighten. I removed the screws and drilled out the hole and filled with plastic wood. after it dried. drilled the screw holes. Replaced the terminal lug. Now screw and terminal lug is tight and intermittent electrical problem solved.

"It's the little bugs that eat Your lunch"


Charles Weisgerber
Posts: 10
Joined: Sun Jan 06, 2019 3:37 pm
First Name: Charles
Last Name: Weisgerber
* REQUIRED* Type and Year of Model Ts owned: 1925 Tudor.
Location: Vancouver wa
MTFCA Number: 32278
Board Member Since: 2015

Re: Terminal Block tightening?

Post by Charles Weisgerber » Thu Feb 28, 2019 6:42 pm

I'm using the (Reproduction) original style Terminal Block. It is very robust. I believe it is cast from an original. It sure looks the part with a slight texture and some lightly rounded corners here and there. Looks like it was made from Fordite, but naturally it wouldn't be in this day and age. For me I like the looks of it and most importantly, the proper screws stay tight. Really looks like it belongs there.


Original Smith
Posts: 3298
Joined: Tue Jan 08, 2019 10:43 am
First Name: Larry
Last Name: Smith
* REQUIRED* Type and Year of Model Ts owned: 13 Touring, 13 Roadster, 17 Coupelet, 25 Roadster P/U
Location: Lomita, California
MTFCA Number: 121
MTFCA Life Member: YES
MTFCI Number: 16310

Re: Terminal Block tightening?

Post by Original Smith » Fri Mar 01, 2019 10:10 am

You won't find the screws for the terminal block at any hardware store! They are #9X1/2.


Scott_Conger
Posts: 6435
Joined: Sun Jan 06, 2019 11:18 am
First Name: Scott
Last Name: Conger
* REQUIRED* Type and Year of Model Ts owned: '13, '15, '19, '23
Location: Clark, WY
Board Member Since: 2005

Re: Terminal Block tightening?

Post by Scott_Conger » Fri Mar 01, 2019 12:56 pm

Scott Conger

Tyranny under the guise of law is still Tyranny

NH Full Flow Float Valves
Obsolete carburetor parts manufactured


Tmodelt
Posts: 167
Joined: Mon Jan 07, 2019 3:48 pm
First Name: Kim
Last Name: Wynn
* REQUIRED* Type and Year of Model Ts owned: 1923 Roadster & 1927 Speedster
Location: Morris, IL

Re: Terminal Block tightening?

Post by Tmodelt » Fri Mar 01, 2019 3:27 pm

I have fixed terminal blocks the same way that I was taught to fix stripped door hinge screw holes. Wooden match sticks or toothpicks. They will "swell" to tighten in the hole (no drying time). I was taught this trick by my carpenter father. Works great. I haven't lost a door yet. HA!


Original Smith
Posts: 3298
Joined: Tue Jan 08, 2019 10:43 am
First Name: Larry
Last Name: Smith
* REQUIRED* Type and Year of Model Ts owned: 13 Touring, 13 Roadster, 17 Coupelet, 25 Roadster P/U
Location: Lomita, California
MTFCA Number: 121
MTFCA Life Member: YES
MTFCI Number: 16310

Re: Terminal Block tightening?

Post by Original Smith » Wed Mar 06, 2019 11:13 am

Blacksmith Bolt. That's who I get them from now. For years, I was able to find originals, but the supply finally dried up. I'm happy Blacksmith started making them again. They have a good operation up there.

User avatar

Topic author
ArthurB
Posts: 75
Joined: Wed Jan 09, 2019 5:22 pm
First Name: Arthur
Last Name: Babitz
* REQUIRED* Type and Year of Model Ts owned: 1927ish Roadster Pickup
Location: Hood River, Oregon
Board Member Since: 2018

Re: Terminal Block tightening?

Post by ArthurB » Fri Mar 08, 2019 2:34 pm

I stopped by WAAAM yesterday to check on a '26 Touring they were restoring. This one took Kim's "toothpick" fix to the extreme: the entire terminal block was made from a chunk of wood. Not clear if this was a period repair or more recent, but they get some points for creativity.

Post Reply Previous topicNext topic