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Motor screws
#1
Posted 12 March 2011 - 11:39 AM
I look through my collection of of tiny screws and found both the ones that take a hex wrench and others that take a standard small blade screw driver.
So what is the 'standard'? Is there one? I mean I have Falcon motors, 16D, and a few other FC-130 can motors around. Do they all take the same size?
Monaco Gran Prix Miniature Racing Club
#2
Posted 12 March 2011 - 11:43 AM
This is where Philippe, the working french trained engineer will explain in detail what and where and using the correct tool for the job.
I am not as bright or organized as P, so I use the same hex head motor screws on everything. Simplifies my life.
While the various motors, if tapped at all, will fit different screws, pretty much they CAN be one screw to rule them all.
Your mileage may vary.
Fate
3/6/48-1/1/12
Requiescat in Pace
#3
Posted 12 March 2011 - 11:52 AM
Scott Salzberg
PCH Parts Express
#4
Posted 12 March 2011 - 12:03 PM
![:blink:](http://slotblog.net/public/style_emoticons/default/blink.gif)
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Paul Wolcott
#5
Posted 12 March 2011 - 12:14 PM
6 questions in one post
Pablo,
Who is our 'number of questions in 1 post leader' ?
1/24/48-2/18/16
Requiescat in Pace
#6
Posted 12 March 2011 - 12:15 PM
I intend to live forever! So far, so good.
![:laugh2:](http://slotblog.net/public/style_emoticons/default/laugh2.gif)
![:laugh2:](http://slotblog.net/public/style_emoticons/default/laugh2.gif)
#7
Posted 12 March 2011 - 12:17 PM
Ooo, Ooo, a new challenge!! I'll get busy.Pablo,Who is our 'number of questions in 1 post leader' ?
--And, Nesta, just ending a sentence with a question mark don't count.
1950-2016
Requiescat in Pace
And I am awaiting
perpetually and forever
a renaissance of wonder
#8
Posted 12 March 2011 - 12:33 PM
#9
Posted 12 March 2011 - 12:48 PM
I like Fastenal as I drive by one of their stores on the way to the raceway!
1/24/48-2/18/16
Requiescat in Pace
#10
Posted 12 March 2011 - 12:58 PM
Me, trained??This is where Philippe, the working french trained engineer will explain in detail what and where and using the correct tool for the job.
![:blink:](http://slotblog.net/public/style_emoticons/default/blink.gif)
![:laugh2:](http://slotblog.net/public/style_emoticons/default/laugh2.gif)
You cannot train an old dawg.
I do not race the "modern" 16D boat anchors, and only use genuine 1960s Mabuchi FT16, FT16D and clones by Champion and Mura in genuine vintage cars of exacting reproductions, so I will not comment on the use of any machine or self-tapping screws for modern 16Ds.For the old vintage motors, only self-tapping # 1 screws with whatever head you choose work fine.
For the only motors I race nowadays, the FK and FK-size Falcons, TSR and Pro-Slot 4002s that all have a 2mm metric thread, I use two types:
1/ 2-56 hex-head, 1/8" long, that takes a bigger Allen wrench than the "standard" used on slot car wheels and gears.
2/ 2-56 button-head, for tight confines. I like these better because of their wider coverage of the retention area. Takes standard 0.050" wrench.
Why 2-56 in a 2mm thread? Because the slight interference stops the screw from backing up like a 2mm screw may or will do.
Why worry about that? Because I have seen it happen more than once, so the slight interference is a 100% inexpensive insurance policy.
- Tim Neja likes this
Philippe de Lespinay
#11
Posted 12 March 2011 - 01:13 PM
![;)](http://slotblog.net/public/style_emoticons/default/wink.gif)
First Place Loser in the JK Products
International D3 Builders Competition
#12
Posted 12 March 2011 - 06:26 PM
At this on-line store, you can get Button Head Socket Screws - Metric - Alloy Steel (SBM2003 M2 x .4 x 3mm $2.30 for 20 screws)
These screws are good for TSR D3 and Falcon 7 and you can use .050 gear and wheel wrench.
Hudy has a good 050 wrench with a longer tip for installing screws onto these motors.
Haruki
Retro Tokyo
Retro Tokyo
Retro Tokyo on Facebook
Where do we go from here: chaos or community?
#13
Posted 12 March 2011 - 06:55 PM
On which planet?Most others use #2-56 or self-tapping screws with .050" hex socket, but they eventual strip out.
![:)](http://slotblog.net/public/style_emoticons/default/smile.gif)
- Tim Neja likes this
Philippe de Lespinay
#14
Posted 12 March 2011 - 08:06 PM
I'll add the following tidbits:
-Retro: Falcon 7, TSR, screws only, no solder needed. Put a drop of Permatex Threadlocker Blue on the threads if you use the M2 metric (correct) screws. Many people use the "wrong" thread screws, as PdL said, and in that case, no threadlocker is needed
![:)](http://slotblog.net/public/style_emoticons/default/smile.gif)
-Retro, Pro Slot 4002B, same thing, PLUS, solder it in. PdL told me the cans on the PS 4002B are not as stout as the cans on the TSR/F7 motors. So, I solder them on one side to the bracket.
-Vintage endbell drive 16D motors use 2/56. (Assuming the holes are not already stripped..)
How do I know all this stuff ? Because I read Slotblog, and I listen to the masters.
Plus, I crash my cars a lot when I race.....I know what works and what sux.......
![:laugh2:](http://slotblog.net/public/style_emoticons/default/laugh2.gif)
Paul Wolcott
#15
Posted 12 March 2011 - 09:41 PM
![:D](http://slotblog.net/public/style_emoticons/default/biggrin.gif)
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Mike Katz
Scratchbuilts forever!!
#16
Posted 12 March 2011 - 09:58 PM
I do hope you don't tire of too many questions.
I'll try to limit them to 1 a month or less
![;)](http://slotblog.net/public/style_emoticons/default/wink.gif)
Monaco Gran Prix Miniature Racing Club
#17
Posted 27 August 2022 - 07:34 PM
Does anyone know the size of the Parma motor screws? Like the 484
Steve
Steve Smith
Smith Scale Speedway
#18
Posted 30 August 2022 - 03:29 AM
I personally use 50/50 screws to mount my motors. It's available in 1# rolls. It's getting a little harder to get, but, a # last for years. However, I did find some very nice ss cap screws @ Spedies . They take a larger alen wrench than the wheels. Great for testing and, they seem to fit 36-D endbells without distortion.
Personally, I wouldn't trust them in a race.
#19
Posted 30 August 2022 - 07:26 AM
What are the 50/50 screws you mentioned? Something that goes in a particular screw gun? Can you post a photo of them? I'm still using a few self-tapping one from the late '60s. I don't still have many endbell-drive arms.
I intend to live forever! So far, so good.
![:laugh2:](http://slotblog.net/public/style_emoticons/default/laugh2.gif)
![:laugh2:](http://slotblog.net/public/style_emoticons/default/laugh2.gif)
#21
Posted 01 September 2022 - 05:33 PM
I am pretty sure the chassis and motor mounting screws from the kits in the '60's were 5-50. That could be what you mean.
Mike Katz
Scratchbuilts forever!!
#22
Posted 01 September 2022 - 05:36 PM
Oatey's liquid flux is good for chassis building. It'll work when soldering most metals other than aluminum.
Mike, when Mark mentioned 50/50 he never was referring to any screws. He was just being a W, A.
I intend to live forever! So far, so good.
![:laugh2:](http://slotblog.net/public/style_emoticons/default/laugh2.gif)
![:laugh2:](http://slotblog.net/public/style_emoticons/default/laugh2.gif)
#23
Posted 01 September 2022 - 06:44 PM
#24
Posted 22 January 2023 - 06:00 PM
JK motor screws say that a 1.5 mm wrench is needed. Is there an inch equivalent? I did the conversion, but it doesn't seem ti work out for the wrenches everyone already has.
Steve
Steve Smith
Smith Scale Speedway