1919 Eaton Restoration – Part 3 of 3

After making a fuel tank and applying a new coat of paint, the Eaton is finished!

| June/July 2017

  • Peter Rooke's 1 hp 1919 T. Eaton Co. engine.
    Photo by Peter Rooke
  • The 1 hp T. Eaton’s mixer.
    Photo by Peter Rooke
  • Cutting the threads for the new mixer needle.
    Photo by Peter Rooke
  • The new needle (foreground) with the old needle. Notice the worn threads on the old needle.
    Photo by Peter Rooke
  • The sheet metal for the new gas tank marked out for cutting the center section.
    Photo by Peter Rooke
  • The two discs to form the top and bottom of the tank marked out for cutting from sheet metal.
    Photo by Peter Rooke
  • A pulley set in place on one of the discs to be used as a former.
    Photo by Peter Rooke
  • One of the discs with its edge formed over on the pulley.
    Photo by Peter Rooke
  • The top of the gas tank with holes cut for the filler and mixer.
    Photo by Peter Rooke
  • The inside of the top ready to solder the filler cap and mixer studs.
    Photo by Peter Rooke
  • The completed gas tank, with gas cap and mixer studs.
    Photo by Peter Rooke
  • The main components used to fabricate the crank guard.
    Photo by Peter Rooke
  • The base section of the guard bolted in position.
    Photo by Peter Rooke
  • Bending the guard in the vise using formers.
    Photo by Peter Rooke
  • Starting the process of forming the sides of the crank guard.
    Photo by Peter Rooke
  • The main part of the guard tack-welded in position.
    Photo by Peter Rooke
  • A template for one of the side pieces for the crank guard.
    Photo by Peter Rooke
  • One of the crank guard side pieces welded in place before final filing and finishing.
    Photo by Peter Rooke
  • The completed crank guard.
    Photo by Peter Rooke
  • The body and cup of the primer before being brazed together.
    Photo by Peter Rooke
  • The stem and sealing plug ready for fitting into the primer body.
    Photo by Peter Rooke
  • The completed primer cup.
    Photo by Peter Rooke
  • The new Eaton decal.
    Image courtesy T. Eaton Co.
  • New copper gasket fitted to igniter for installation.
    Photo by Peter Rooke
  • Igniter mating surface showing two areas of poor contact.
    Photo by Peter Rooke
  • The finished engine not only looks good, it runs well, too.
    Photo by Peter Rooke

This is the final part of Peter Rooke’s series on restoring a 1919 T. Eaton Co. engine. Read Part 1 and Part 2 for previous installments of the restoration.

Mixer

Initially, it was thought that little work would be required on the mixer apart from stripping and cleaning it. The check ball was a good fit in the inlet pipe, and the needle and what could be seen of the seat appeared satisfactory. The mesh filter to the inlet tube was cleaned along with the rest of the mixer and left to the side so attention could turn to the missing fuel tank.

It was only later, after assembly and trying to start the engine, that it was realized all was not well. Priming the engine, the needle was opened 1/2 turn, the choke closed and the engine turned over once. This resulted in an enormous amount of fuel gushing out of the mixer.

The seat for the needle was lightly cleaned up with a taper reamer before it was coated in engineer’s blue and the needle was re-fitted in the closed position. This revealed that when fully closed there was little contact with the seat, so a new needle was made from brass.



To do this, some 0.375-inch-diameter brass rod was held in the lathe chuck and the tip turned to a 60-degree included angle taper before narrowing the first 0.75 inch of the needle to 0.1875 inch diameter. Next, a 0.375 inch x 28 TPI thread was cut on the body of the needle using the screw-cutting feature of the lathe as the appropriate thread die wasn’t on hand.

The retaining pin was removed from the old adjusting head and the replacement needle fitted, a new cross hole drilled and finally a new retaining pin fitted.



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