Timkens are more a side load bearing. Check out Torrington.

Posted 12 January 2017 - 07:05 PM
Posted 17 January 2017 - 07:49 PM
Red, did you really think I wouldn't know an idler would change direction of rotation ?
Do I have "newbie" pasted on my forehead ? Maybe I do.....
I could have weenied out and made it an anglewinder. Probably would be done by now. But I like this type of challenge.
After lots of thinking and mock ups on the Rick's Jig, I like the Magoo slicks on the threaded rims with the set screw 42 T 48P brass spur.
At this point, the new improved idler gizmo is only half way constructed and awaits some other things to "fall into place" before being finalized
Mid point on the can notches is the left/right balance point on both the real and jig motors. I didn't plan that; just got lucky.
Axle tubing is sized and centered in the jig. I got lucky and had two 42 T spurs, .917" OD, so I put one on each end to adjust the axle height screws
Now I have a pretty good idea on how and where the main rails/motor box/idler gear gizmo/spur/wheels/etc. etc. will sit
Paul Wolcott
Posted 18 January 2017 - 07:22 AM
That's why I said I was sure you already knew it. Only one more thing to say. I think your going to find out that with that hot motor and all the traction, your going to want a larger idler. But I'm sure you have it all under control. Good luck.
Posted 18 January 2017 - 10:44 AM
Paul Wolcott
Posted 18 January 2017 - 02:40 PM
With everything laying flat, I secured motor to axle tube temporarily with a bent piece of scrap brass.
Just so stuff won't flop around while I thrash a motor box together
Now I can get the axle height adjusters out of the way and mock up the threaded axle, wheels, and spur gear.
With a piece of .063" under the jig motor, now I have a real time view of exactly what is going to fit where
Paul Wolcott
Posted 20 January 2017 - 05:20 PM
The motor box may be overbuilt, but my theories are:
-big heavy powerful vintage motor needs a strong box
-a little more weight (even some up high) to make it happen is acceptable
-it's a Cadillac
The motor fits like a glove, and will be screwed in left side with a brass 2-56 screw (lower only) and soldered in on right side.
Perfectly weight centered left/right
Paul Wolcott
Posted 21 January 2017 - 06:56 PM
Idler gear box, take 2. This time I took a smart pill and used two old tricks for delicate maneuvers like this:
-used my 25W N454 Hakko, a small iron for delicate work, in addition to the Ungar
-silver solder in some places and 60/40 in others to avoid melting joints when I didn't want them to
VXB BB's silver soldered to the tabs, 16T gear and 3/32" shaft polished. A piece of .078" wire added to the motor box rails is the starting point
.039" wire wraparound braces connect to and secure the outboard tab. Right rear wheel barely clears the gizmo, just like I thought it would
Magoo tires trimmed and trued to 1.044" OD and .485" width
Paul Wolcott
Posted 23 January 2017 - 04:34 PM
Posted 23 January 2017 - 05:23 PM
Paul Wolcott
Posted 23 January 2017 - 06:08 PM
Posted 23 January 2017 - 06:40 PM
Charlie McCullough
Charlie's Speed Shop
Kelly Racing Wanna Be
Posted 23 January 2017 - 07:28 PM
I guess you aren't following this build much to think the motor is behind the axle
Posted 23 January 2017 - 08:19 PM
Paul Wolcott
Posted 23 January 2017 - 10:29 PM
Posted 24 January 2017 - 11:52 AM
I will certainly test rotating flag vs locked. If it does work better locked, at least I know it will be flat and true, not skewed.
Bill, I'm surprised you haven't read my mind yet about making the energy push the flag down the strip yet have the car wheelie.
It may work, or it may be another classic Pablo failed experiment. I ain't skeered...
Paul Wolcott
Posted 24 January 2017 - 12:16 PM
My buddy Pablo ain't skeered of nothing except Cracker Barrel being closed after a race. LOL!!!
Posted 24 January 2017 - 01:16 PM
I'm seeing a motor/drivetrain and guide tongue assembly staying down with the body/front wheels raising up in a beautiful wheelie.
Posted 24 January 2017 - 01:29 PM
I will certainly test rotating flag vs. locked. It it does work better locked at least I know it will be flat and true, not skewed
Bill, I'm surprised you haven't read my mind yet about making the energy push the flag down the strip yet have the car wheelie
It may work, or it may be another classic Pablo failed experimentI ain't skeered
Posted 29 January 2017 - 06:32 PM
Drag racing rules don't seem to be real picky, as far as I can tell.
Matter of fact, the only rules I've been able to find are SDRA.
Regarding wheelie bars and wheels, the only restriction is less than 5" from center of rear axle to center of wheelie bar axle.
Why can't I snap O-rings onto 3/32" ball bearings and use a brass tube axle with retainers ?
At this point I need to paint the body before proceeding. Yes, I know it sounds weird.
I scrubbed the partially finished chassis and now turn my attention to the airbrush...
Paul Wolcott
Posted 29 January 2017 - 06:44 PM
Clever idea for the wheelies!
Don Weaver
A slot car racer who never grew up!
The supply of government exceeds demand.
L.H. Lapham
If the brain-eating amoeba invades Washington
it will starve to death...
Posted 29 January 2017 - 08:42 PM
You're going to need a lot of weight on the tongue section I think.