Sunday, November 10, 2013

Project "Bantam" - Parts

There's nothing worse than starting a project to find that you can't get something that you need.  So any parts that are truly unobtainable, must be treated with the greatest care.

Here's a list of what I think I'll need and where I might obtain them:
  • Rear tires 4.8" wide by 8" rim (herringbone pattern) - Miller Tires
  • Magneto Coil
    • Refit of modern coil
    • original Magnamatic coil - 290880
    • Standard ignition coil if I'm going for electric start mod... hmmmmm
  • Engine parts from Sears Parts Direct
  • Parts from Rare Garden Tractors
    • Bantam Hood decal $8.00 pair
    • Bantam Rear Tunnel decal $6.00
    • Bantam brass clutch fork $35.00
    • Bantam upper steering gear $35.00
    • Bantam 5000 steering shaft bearing $20.00
    • Bantam shifter lever w/ball $20.00
    • Bantam rear axle sleeve bearing (#5354) $20.00 pr
    • Bantam rear axle seals (#5351) $20.00 pr
    • Bantam 5000 cast alum. steering wheel $45.00
    • Bantam 5000 rear fenders (covers tires) $90.00 pr
    • Bantam gas tank $85.00
  • Differential parts - (from restore process here)
    • Bearings
      • 2 ea Cluster Gear Bearing Front and Rear #B-1212 Torrington USA
      • 2 ea Spline Shaft (and worm) Bearing Front #88504 ND USA
      • 2 ea Rear Axle Main Bearing #3206 New Departure USA
      • 2 ea Rear Axle Sleeve Bearing #21 GP Johnson Bronze - [not sure about this one]
      • Rear Axle Sleeve Bearing 2 ea. 5354 BRBU 1418-08
      • Main Drive Gear Bearing 1 ea. 8306 Truck Kraft TKK-TK470954
    • Seals
      • 2 ea Oil Seal- Rear Axle Federal Mogul 254287
      • 1ea Oil Seal- Splined Shaft- Frt. Federal Mogul 470954
  • Throttle Cable
  • Various fasteners

Friday, November 8, 2013

Project "Bantam"

The year was 1978 and my father's friends needed a mowing machine for their airfield in West Fairfield, on Sweeney's farm.  Karl found a well used Bantam 5000 from a golf course, and paid a whole $50 for the tractor and gang mowers.  The Bantam was used to plod up and down the airfield for the years that they rented the corn field.  At the ripe old age of 4, I learned to drive it and also avoided hitting any airplanes.

After the interest of flying in West Fairfield was over, the renting of Sweeney's field ended.  All the equipment was hauled away.  John took the huge roller and wind sock.  The airplanes were either sold or stored.  John sold his, Karl kept his for years, and my father's was stored in our garage at home, with the wings removed and lashed to the ceiling.  The landing reflectors, the Bantam and the mowers lived in our woodshed for years.  The Bantam was outfitted with a belt-driven pump and an 80 gallon tank.  I was able to fill the tank by tossing the suction line into the creek.  The purpose was to provide convenient irrigation of the LARGE vegetable garden we maintained.   When it wasn't pumping and hauling water, it was occasionally used to haul wagons of wood.  We also fitted a makeshift snow plow to it for winter duty, but it was never really used for mowing anymore.  It began to fall into disrepair, and sat in the woodshed from the late 80's until yesterday.

Fits nicely in the back of a Chevy Equinox
Wrong front wheel.



My first ride is a bit rusty.
I don't want my own son to miss out on the joy of driving his own pint-sized tractor, so we began the restoration process.  Actually we started the tear-down process.



The FB14 5.0 HP engine turns over, but it has no compression, or spark.  The magneto died years ago, and I'm sure the valves are stuck.  Luckily there is a small following for the Bantam series of garden tractors, and I should be able to get some technical support (and maybe even some parts) for the restoration.
www.bantamtractor.com


Problems include:

  • Rusty fenders
  • Broken steering pinion
  • magneto shot
  • shroud rusted through
  • tires shot
  • front wheel missing
  • broken steering wheel

Watch for more action to come...

Monday, April 29, 2013

Fostering a sense of stewardship

After reading the Vintagent's article entitled "Prouve, Ennui, and the Problem of Cash", I began to reflect on my own sense of stewardship and how best to foster this important notion in others.  In our modern culture of the present, where things are pre-disposed to be disposable, what will people be saving for the future?  If we could only know what would be valuable in the future, would we hoard all we could find today?  What will we save, pass on to future generations of our own family or others who share our delight?  We are merely stewards of this world and all the things in it anyway.  We can take none of it with us, why not preserve it for someone else to enjoy!

I look at my friends and acquaintances who have amassed collections of objects that no one at the time would consider even worth saving, and wonder what will my son choose to consider important enough to keep throughout his life.  (He's already been instructed that he must save his Noggin the Nog books for his own children.)  Chet collects early speakers, Ron collects radios, and Dale collects amateur radio gear.  Matt even made his love of antiquities and coffee into a lucrative business.

I look at myself and consider if I have failed in successful stewardship?  I've already sent a few automobiles to the scrapper.  I tried to preserve them with as little ability that I had at the time.  The need for repair and upkeep overwhelmed me and they were of no use any longer, and worth more as recycled material than the wondrous means of freedom and travel that they once were in my youth.  I'm sure my father would be overjoyed if I showed a glimmer of interest in his 1946 Cessna, which he has maintained faithfully as possible since before I was born.  He stored it for more than 20 years in the garage when he had neither time nor money to spend on it.  The times we spent together flying and fixing will always be remembered as great experiences.  Pass the story with the machinery, and it becomes even more of a legend.

How would I feel if the tables were turned, and my own son wanted nothing to do with this 1949 Sunbeam motorcycle?  Everyone takes their own path.  Today he'd sell it in a second for a steam engine.  The act of careful stewardship is never in vain, only the stories can be lost and the objects aged.  Even the elusive Barn Find has a unique and exciting mystery of its own.  If my own son doesn't take an interest, then someone else will be there to pass the torch to.  Hopefully there will be a future steward to honor the story of the past stewards.

I was always told to take care of my things.  I see now that they aren't my things.  They are the things that I've been entrusted the care of.  Some shortsightedly were abused and misused, others were treasured.  The experience of fatherhood deepens the sense that not only am I the steward of things, but of people and attitudes as well.  Not all of us can be like Barney Pollard, even fighting off the government to preserve a collection.  We can be good stewards of what we do have though.  By choosing the right things to save, and the best things to entrust to others we can more effectively further our stewardship.  There's no sense in becoming buried alive.

Stewardship and Experience together bonded in a Story allow these objects to gain value.  Not just in the sense of currency, but as part of our own lives filling us with richer experiences we would never gain otherwise.  These such heroes live on because they acted with good stewardship.  My wife kept her first car... our 1967 Sunbeam Imp.  Eduardo Pallazo made it possible for me to take over the care of a unique 1966 Sunbeam Imp.  Dr. John F. Patt made is possible for me to care for a very original 1949 Sunbeam S7 Deluxe.  Their immortal stories live on through the continued stewardship and the promise that their stories will be passed along too.  Shake their hand, look them in the eye and share the stories when the torch is passed.  I hope I've provided some inspiration.

In the words of Ian Anderson...
"Once I used to join in, every boy and girl was my friend
Now there's revolution but they don't know what they're fighting
Let us close our eyes, outside their lives go on much faster
Oh, we won't give in, we'll keep living in the past"
-- JETHRO TULL


Friday, June 22, 2012

The secret kit under the seat

Forget all those linear voltage regulator designs I posted previously for the Sunbeam Kubota alternator conversion. The error in my thinking is that an unloaded inductor produces high voltages, which must be dealt with by dissipation as heat. My linear design, while still within its design limits, was really overheating cooped up in the box.  It was experiencing too high an input voltage than I planned.  And it was too ugly to mount outside.

So now I know why they use a shunt regulator. It collapses the voltage reducing the power that must be dissipated. Thanks to Electrex World LTD for having model RR-1 in stock, and for the quick shipment.



I made up some clips to go around the seat bolts, and fastened the regulator neatly under the seat out of sight.  With some spare BSW bolts!  It will also get some air flow.

All the original bulbs are back in place, and I'm ready for a test.... as soon as it stops raining.  Initial indications are that the regulator charges strongly.  It doesn't appear to be over the battery rated charge current, and I'm hoping the bulbs will assist in keeping the voltage load regulation in check.

Thursday, May 17, 2012

S7 Clutch Release Bearing Mod

The VXB 6x14x5mm Miniature Thrust Bearings arrived today and were easily installed in place of the original balls.  I added some moly grease for extra insurance.  The height gain was only a few thousandths from the worn parts, and easily allowed the clip ring to be replaced with room to spare.


Monday, May 14, 2012

Clutch Release Bearing Worry.

I've been getting an annoying clunk when shifting gears on KYL95.  I adjusted the clutch cold, but when hot it seems not to disengage properly.  Consulting the SOF gurus and Sept/October 2010 issue of On the Beam, I discovered that a modern bearing AKL 6 could be placed between the original release bearing races and maintain the original configuration.  Brilliant, except that I couldn't find that model number locally.

Off to trusty eBay with no results.  So I got the dimensions (6 x 14 x 5mm) and went searching further to discover VXB Bearing selling through Amazon.
http://www.amazon.com/Thrust-Bearing-6x14x5-Miniature-Bearings/dp/B002BBKCAE/ref=sr_1_1?ie=UTF8&qid=1336961575&sr=8-1

They might actually be delivered in two days!

Luckily the clutch release bearing can be removed easily without dismantling the bike.  Pulling it out revealed that there's nothing really wrong with it, except some radial wear inside the bearing holder cup.  Since there really isn't supposed to be any radial load, and I can probably attribute that to some numbskull in the past putting a frapping nail in place of the clutch push rod.

The release bearing is easily removed.  Notice my clever Viton o-ring seal "glued" to the outside lip of the gearbox.

The locknut is knocked loose, then removed, after that the bolt can be removed. 

 The balls look fine.  There's a little wear on the races, but nowhere near anything catastrophic.  With nothing to keep the balls evenly spaced, I'm sure they're bumping into one another, shifting the load on the races.

The whole assembly fits together like this and then drops down into the cup.

Sorry for the blurry picture, but the wear inside the cup is evident from some radial load on the bearing.

The next installment will be investigating the installation of the new bearing.