Internal Combustion

Internal Combustion Engines are basically any device which uses the explosive combustion of fuel to push a piston within a cylinder. Examples of internal combustion fuels include:

  1. Petrol/Gasoline
  2. Diesel
  3. Kerosene
  4. Aviation Gas (AVGAS)

In this section of Steam & Engine you will find both details on the processes and engines, but examples of the usage of those engines.

Internal Combustion Engines are basically any device which uses the explosive combustion of fuel to push a piston within a cylinder. Examples of internal combustion fuels include:

  1. Petrol/Gasoline
  2. Diesel
  3. Kerosene
  4. Aviation Gas (AVGAS)

In this section of Steam & Engine you will find both details on the processes and engines, but examples of the usage of those engines.

Remember to also check the Registrars page (menu item at left) and the Manual Exchange (menu item at left) for more information. If you have an engine it can be to your advantage to register it with a registrar in order to find other people who also have your engine type/style/brand. It can also help out if your engine is ever stolen.

Submitted by Elden DuRand This email address is being protected from spambots. You need JavaScript enabled to view it.
  1. Open the needle valve on the mixer about 3/4 turn.
  2. Turn the flywheel backwards until you feel the compression bump.
  3. Press on intake the valve stem and continue to turn the flywheel until the exhaust valve just opens.
  4. Remove your finger from the intake valve and place your left hand over the choke plate.
  5. Turn the flywheel about 1/2 turn clockwise.
  6. Repeat this operation twice more or until fuel drips from the mixer.
  7. With the ignition switch turned on, slowly turn the flywheel clockwise over compression. The engine will promptly start.
  8. Adjust the mixer for best running.
  9. To stop the engine, turn off the ignition.

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Submitted by Dave Rotigel This email address is being protected from spambots. You need JavaScript enabled to view it.
  1. Turn on the gas
  2. Open the compression release about half way and pull her through twice.
  3. Then stopped her 90 degrees ATDC.
  4. Close the compression release
  5. Hook up the battery and "tickle" the ignitor.
  6. Opened the compression release just as the engine comes up on compression after firing the first time.
  7. She will go through compression and fire again (harder)
  8. Shut the compression release!

Read more: Galoway 16HP ignitor hit-n-miss

Submitted by Joe Betz This email address is being protected from spambots. You need JavaScript enabled to view it.
Most of my engines, I start by:
  1. Opening the throttle screw about 1 turn or less
  2. Flip the choke plate over the mouth of the mixer
  3. Retard the timing with the little lever by the trip mechanism at the magneto
  4. Spin the flywheels until fuel runs out of the mixer
  5. Give it a couple of hefty pulls through compression. 
  6. Once it fires : Advance the timing - Open the choke - adjust the fuel.…

Read more: General small engines of 2½ HP or less

Submitted by Jim Parenteau This email address is being protected from spambots. You need JavaScript enabled to view it.

I'll offer a few tips that i have found to make it easier tostart most any engine: (i'm fairly lazy & not muscular)To precharge cyl prior to starting, hold intake valve open,bring to tdc on comp stroke, choke, and flip it.. you get2 suction strokes without having to pull it thru compression.hold intake valve open and slowly back engine up till youget to tdc on comp stroke.Repeat as needed until you have fuel dripping from mixer.on the last one, release hand from choke just before itquits sucking, this will suck the fuel mixture in nicely.then, bring to bdc of comp stroke, (it should already be there) hold intake valve open and rotate until you knowyou can pull i thru comp with some speed. (on 4 hp ottawathis is about half way) it should fire.I do all this while kneeling next to the engine, (skided) thenI get up and pull it thru comp and it should lite.you have to fine-tune this method for each of your engines,but it's worth it.I've seen lots of people using one guy pulling flywheels andthe other guy running the choke, etc, for a long time just toget an explosive mixture into the cyl..This method only works with trip type mags or impulsemagnetos, but could save some cranking on non-impulseas well.…

Read more: General Tip To Start Almost Any Engine

Submitted by Curt Holland This email address is being protected from spambots. You need JavaScript enabled to view it.

Starting a magneto engine on compression

  1. Fill tank and clean spark plug.
  2. Set lever on magneto to the ADVANCED timing position.
  3. Hold in intake valve in to bring piston to TDC on intake stroke. Release valve.
  4. Hold hand over mixer intake (or inlet to carburettor on TG engines.)
  5. Pull through intake stroke to prime with a good shot of fuel.
  6. Continue to pull through until you feel compression.
  7. Grab top of flywheel and flip it hard, backwards, against compression.
  8. If you flip it hard enough the magneto should trip and fire the engine, reversing the direction you were turning it.
  9. If it fails to fire after a few attempts, repeat the priming sequence above, or try priming it through the priming cup.

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