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A real steering gear?

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Tom Knight Avatar
Las Vegas, Nevada, USA   USA
1911 CycleKart Racing "Yellow Peril"
Here's a pic of BMI rack & one u-joint in the 1911 wasp ...

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Tom Knight Avatar
Las Vegas, Nevada, USA   USA
1911 CycleKart Racing "Yellow Peril"
my angle grinder gave up this morning. I started to toss it and then I realized that it had a 90 deg. angle head that has turned at 10,000 rpm since '09, the motor quit not the drive, it looks as good as the day I brought it home from Harbor. frg'ht. It could well be a good candidate for a sector gear steering box & pitman arm set-up.
With some mod's....mite work....Tom


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carChips Avatar
carChips Victor Harnish
Kelowna, BC, Canada   CAN
1933 MG Magnette
1973 Triumph Spitfire 1500 "Chip"
1989 GMC Sierra 1500 "Bush Truck"
How many times does the output shaft turn to one turn of the input shaft?

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Tom Knight Avatar
Las Vegas, Nevada, USA   USA
1911 CycleKart Racing "Yellow Peril"
one turn of threaded end and 2.5 on motor shaft......

carChips Avatar
carChips Victor Harnish
Kelowna, BC, Canada   CAN
1933 MG Magnette
1973 Triumph Spitfire 1500 "Chip"
1989 GMC Sierra 1500 "Bush Truck"
Cycle carts have up to 3/4 turn lock to lock and most have around a 1/4.

bobwilcox Gold Member Bob Wilcox
Riverside, MO, USA   USA
1925 Ford Model T "Speedway Special"
1934 Austin America "Austin American Special"
The ratio sounds about right. The pitman arm would only need to move about 1/4 of a revolution which means the steering shaft would need to rotate just over a half turn. It should work if it's sturdy enough. Bob

Tom Knight Avatar
Las Vegas, Nevada, USA   USA
1911 CycleKart Racing "Yellow Peril"
I clamped a long nose vise grip on spindle shaft and put housing in my bench vise, a 1/4 to 1/2 turn on thread end yielded a 45 deg. angle on vise grips forward & back from plumb. Surely that would push pitman arm back & forth enough to cause a decent turn circle ? I have steering stops on my kart so as not to rub radius rods. That angle drive has been turning 10,000 rpm for 5-6 yr. should hold up to a karts use...we'll see.......Tom

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bobwilcox Gold Member Bob Wilcox
Riverside, MO, USA   USA
1925 Ford Model T "Speedway Special"
1934 Austin America "Austin American Special"
You can suit the travel to your needs by lengthening or shortening the pitman arm. With a 2.5:1 ratio it should be easy to turn no matter how long the arm is---within reason.

Pierro Taruffi Rhys Nolan
Tamworth, Staffs, UK   GBR
1923 CycleKart Vintage "Voisin Laboratoire"
Denny, do you still want more knowledge of Gnome? I spent the day yesterday with a fellow who was going to buy it when he sold GN Arkela. He will scribe more if you wish, but if you have moved on it would be a waste of his time.



Edited 1 time(s). Last edit at 2017-02-12 12:24 PM by Pierro Taruffi.

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Denny Graham Silver Member Dennis Graham
Sandwich, Illinois, USA   USA
1950 Chevrolet 3600 "Old Blue"
1954 Chevrolet 3600
YES, ABSOLUTELY, YES!!!!!
Rhys, I'm well aware that to be considered a genuine “Cyclekart” one does not
have to create an exact replica of the inspiration car and I've been reminded of
that many times in the year that I've been following them.
That said, I really admire the workmanship that Vitaly exhibited with the Type 35 that
he was constructing. Much of the enjoyment to me also, is in the build and because
of that I'd like to hold to the original car in appearance as much as is practical.
Although the GN Gnome has a lot in common with single seat cars from that same
era, there are some distinctive differences that make it stand out in my mind.
There is enough information online to construct a reasonable facsimile of the
original car in typical CK fashion for the average builder. But I felt in my case I
needed much more detail. So I had to put it on the back burner because I had
exhausted all efforts in locating any specific information.
I would love to hear more of the history of the Gnome, such as when it was built
and who the builder was. The provenance would be the topping on the cake when
I displayed the kart.
I would also like to see more detail of the front and rear suspension and, if at all possible
a clean head on, tail and straight on side shot of the car. Al though it may be too much to
ask, an overhead photo would be very helpful in scaling the chassis and body width.
Thank you very much for keeping me in mind, I do appreciate any further information
that you could find for me.
Denny Graham
Sandwich, IL

Pierro Taruffi Rhys Nolan
Tamworth, Staffs, UK   GBR
1923 CycleKart Vintage "Voisin Laboratoire"
I will ask him to write as much as he can. I may be able to get to it to take photos as I guess these are not the sort of photos most folks take. It could take a wee while, but let's see what I can dredge for you.

Denny Graham Silver Member Dennis Graham
Sandwich, Illinois, USA   USA
1950 Chevrolet 3600 "Old Blue"
1954 Chevrolet 3600
Really appreciate that Rhys. I've shifted my energy temporarily to a
Riley 9 Brooklands, for which there is a ton of info available, simply
because it was a production car not just a special as the Gnome was.
But the Gnome file is still on the bench in hopes that I would one day
find a connection to it so I could fill in some blank spaces.

Once I commit to a hobby, I'm all in. There are already parts on the
shelf for several and once I get to rolling along I think I'll be able to
build a couple a year with no trouble, Since I'll never make it
West of Sandwich, IL I'll need to build a few to have someone to
compete with.
dg

Woodysrods Brian Woods
Westbank B.C., Canada   CAN
"Go West Young Man!"
Brian

Team classic Brian S
Lyttelton Christchurch, Canterbury, New Zealand   NZL
Hi Wane. That is the rack i used in CK31.I found it to be very positive and for the price, good value. Easy to mount in the position you described. Cheers Brian S.

YourSolutions Steve Nicholson
Tauranga, Bay of Plenty, New Zealand   NZL
In reply to # 17160 by Tom Knight my angle grinder gave up this morning. I started to toss it and then I realized that it had a 90 deg. angle head that has turned at 10,000 rpm since '09, the motor quit not the drive, it looks as good as the day I brought it home from Harbor. frg'ht. It could well be a good candidate for a sector gear steering box & pitman arm set-up.
With some mod's....mite work....Tom

Interesting to see this, I have an dead angle grinder I've kept, thinking one day I might find a use for the angle drive. Hopefully I'll find it as I'm interested in using the original style steering box and pitman arm set-up on my kart.

I read on a gravity racing website the other day, a recommendation for using a motorcycle steering damper to help with steering control on go-cart type steering. Steering damper would help take the twitch out of the steering for sure.

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