4 cyl. 4 stroke

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Thread: 4 cyl. 4 stroke

  1. #1

    4 cyl. 4 stroke

    Look what I found on ebay.

    I'm not sure this engine would be suitable for our application or if it can be fitted to our machines. The idea of a 4 stroke machine with 4 cylinders putting out 30hp and only weighing in at 65 lbs. sounds pretty cool.



    TELEDYNE 4A032 4 CYLINDER ENGINE MOTOR GPU ULTRALIGHT - eBay (item 300197751727 end time Mar-10-08 16:02:26 PDT)

    Teledyne engine 4 stroke, 4 cylinder ultralight aircraft engine.
    Banned

  2. #2
    Join Date
    Jul 2007
    Location
    I live in Shreveport,,Louisiana
    Posts
    3,285
    Teledyne Engine - What is old is new again! For years ultralight pilots and manufacturers have been looking for a light, reliable, economical four stroke engine, in the 25 to 35 horsepower range. Well it seems that the U.S. government has had one sitting on their military surplus shelves for years!

    A company called Vogel's Electro Source from Milford NH, was at Airventure with a little 4 cylinder 4 stroke engine, with a dry weight of 63 lbs. The 32 cubic inch displacement engines are military standard model #4A032-4. They come complete with electronic radio frequency suppressed, waterproof ignition, with shielded spark plugs, and put out about 20 horsepower with the standard carburetor.

    But according to David Vogel with a little reworking of the heads, and a larger carburetor the engine can reach over 30 hp. When fire up on the test stand, (two blocks of wood bolted to the bottom of the engine,) the engine fired up and ran like a top. In fact even with NO rubber mounts at all and revving up to nearly 5,000 rpm the engine didn't move.

    Parts are still readily available for the engine, according to David " a new head complete sells for $75.00 and you can rebuild the complete bottom end, rings, pistons, and connecting rods for $120.00."

    David was offering a show special on the engine, with a prop hub, prop and engine accessories for for $1295.00 U.S.

    For more information contact:

    Vogel Electro Source
    121 Mount Vernon




    George ,


    Thats a light engine with good hp too , plus at a great price .

  3. #3
    Join Date
    Sep 2007
    Location
    Enola, Pa.
    Posts
    677
    Looks like it would be a nice replacement engine for my Trackster.

  4. #4
    Join Date
    Nov 2007
    Location
    Muskoka On Canada
    Posts
    392

    Interesting but I see some conflicting information

    Aside from not seeing a foot pounds of torque rating I see many different horse power ratings . Has any tried this motor out personally ?

    What is its red line RPM ?

    Highlights:
    New in the crate
    Manual, rope start
    Starter plate can be removed to install a starter
    Model Number: 4A032-4
    Engine Type: 4 Cyl, Horizontally Opposed, Air Cooled
    Overhead Valves, and Electronic Ignition
    Rating: 6 H.P. @ 3,600 RPM (USG Rating)
    Dimensions: 191/8" x 20 5/8" x 15 3/4"
    Weight: 110 lbs, shipping weight w/crate 165 lbs
    Bore: 2.250 Inch
    Stroke: 2.0 Inch
    Displacement: 32 Cubic Inches; 524.48cc
    Compression: 6.0 to 1
    Other Features: Radio Frequency Suppressed
    Fungus Proofed
    Dual Coil Electronic Ignition
    Includes Technical and Service Manuals
    Why do we waste tax money on bridges and roads when we can all just drive AATVs

  5. #5
    Join Date
    Sep 2007
    Location
    Enola, Pa.
    Posts
    677
    Yeah, I seen the 6hp rating... Saturn Surplus, sells these engines. They're only 20 minutes from me. I called them and they said they've seen them advertised as being between, 6 and 20 hp. They list the Manufacturers Specs, which is 6hp. I'm going up and check them out. For the money, it might be worth buying one.

  6. #6
    Join Date
    Aug 2007
    Location
    Texas
    Posts
    582
    I saw that too, but for something with that displacement, especially a 4 cylinder, 6 HP looks awful low.

    Let us know if you pick one up and how it works out.

  7. #7
    Strange how they can come up with numbers like that...I can see maybe a 10 or 20 % variance in performance claims but 500%..! That's a big difference. If my math is correct, 32ci converts to 500cc. It would seem that 20hp should be attainable with that much displacement. I guess the big question would be how much torque do they have?
    Banned

  8. #8
    Join Date
    Sep 2007
    Location
    Enola, Pa.
    Posts
    677
    I emailed David Vogel about these motors and inquired about how he increased the hp; here's the reply:
    QUOTE]Can only get hi teens. No longer active.Sorry.[/QUOTE]

    Still going to go take a look at this motor.


    This was taken for Teledyne 20-Horsepower Engine | Archives

    A company called Vogel's Electro Source in Milford, New Hampshire displayed the surplus engine (said to be manufactured in the early '90s) to the aviation industry recently. The little 4-cylinder 4-stroke engine has a dry empty weight of 63 pounds. The 32-cubic-inch (524-cc) displacement engines are military standard model #4A032-4. They come complete with electronic radio frequency suppression, waterproof ignition and shielded spark plugs, and put out about 18 to 20 horsepower with the standard carburetor.
    "Our dyno tests have shown these stock engines to be in the 18- to 20-hp range," Vogel's Electro Source says. "We will offer affordable plans and kits to safely increase power to 40 horsepower." And although the displayed engine weighed in at 63 pounds, according to Vogel's, "further weight reduction is possible," the company claims.
    But according to David Vogel of Vogel's Electro Source, with just a little reworking of the heads and a larger carburetor, the engine can reach more than 30 horsepower. When fired up on the "test stand" (two blocks of wood bolted to the bottom of the engine), the engine ran like a top. In fact, even with no rubber mounts at all and revving up to nearly 5,000 rpm, the engine didn't move.

  9. #9
    High teens is pretty respectable for a $400 dollar investment.
    Banned

  10. #10
    Join Date
    Jun 2007
    Location
    Pittsburgh PA
    Posts
    1,153
    6:1 compression. You let Roger put some 12:1 pistons in it, it should be a 50 HP !!!

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