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160hp conversation for o320-e2d
Eric Pekrul #19234 Can a certified O320-E2D be legally converted to 160hp without splitting the case and changing the main bearings? The crankshaft flange has been inspected for corrosion/pitting and I have the correct (160hp) pistons, pins and hardened cylinders. Is, has there been a STC to accomplish this? Can it be done with a 337 form? Does anyone have guidance regarding a 337? |
frewjm
#19235 My understanding is that as the Type Certificate Data Sheet No. E-274 is the O-320-E2D 150 hp (112 kW) at 2700 rpm, Minimum fuel grade 80/87 Therefore at 160 hp similar to: toggle quoted messageShow quoted text -----Original Message----- Can a certified O320-E2D be legally converted to 160hp without splitting the |
Richard Talbot
#19236 The engine is the data plate, the rest is just parts. If you want to put a 160hp engine on a certified aircraft you normally need a new data plate for the engine and appropriate paperwork to hang it on the airframe. Why do you think the bearings should be changed? I'd be more interested in whether the crank, rods and case you have were ever used in the 160hp models. toggle quoted messageShow quoted text -------- Original message -------- From: Eric Pekrul <pekruleric@...> Date: 17/4/21 1:01 pm (GMT+10:00) To: lycoming@groups.io Subject: [lycoming] 160hp conversation for o320-e2d Can a certified O320-E2D be legally converted to 160hp without splitting the case and changing the main bearings? The crankshaft flange has been inspected for corrosion/pitting and I have the correct (160hp) pistons, pins and hardened cylinders. Is, has there been a STC to accomplish this? Can it be done with a 337 form? Does anyone have guidance regarding a 337? |
Eric Pekrul #19237 John, thank you for the information and education. If I am understanding correctly, replacing the cylinder assembly’s on my O-320-E2D, with assembly’s for example from an IO-320-D1C, is considered a “minor change or repair” and therefore should be allowed, providing the correct alterations are made to the data plate regarding fuel grade, ignition timing and hp rating. So I assume a 337 needs to be filed and approved regarding the changes to the engine and data plate. Is my understanding correct? |
Raymo
#19238 337 is only required for major repairs. toggle quoted messageShow quoted text On Apr 17, 2021, at 10:27 AM, Eric Pekrul <pekruleric@...> wrote: John, thank you for the information and education. If I am understanding correctly, replacing the cylinder assembly’s on my O-320-E2D, with assembly’s for example from an IO-320-D1C, is considered a “minor change or repair” and therefore should be allowed, providing the correct alterations are made to the data plate regarding fuel grade, ignition timing and hp rating. So I assume a 337 needs to be filed and approved regarding the changes to the engine and data plate. Is my understanding correct? |
Charles Kuss
#19239 When Lycoming increased the horsepower, they also changed the front main bearing. The 140 & 150 HP models have a 4 piece front [nose] bearing. The 160 HP models switched to a 2 piece bearing. The 2 piece bearing supports more surface area of the crankshaft. Charlie K On Saturday, April 17, 2021, 06:56:11 AM EDT, Richard Talbot <richard@...> wrote: The engine is the data plate, the rest is just parts. If you want to put a 160hp engine on a certified aircraft you normally need a new data plate for the engine and appropriate paperwork to hang it on the airframe. Why do you think the bearings should be changed? I'd be more interested in whether the crank, rods and case you have were ever used in the 160hp models. toggle quoted messageShow quoted text -------- Original message -------- From: Eric Pekrul <pekruleric@...> Date: 17/4/21 1:01 pm (GMT+10:00) To: lycoming@groups.io Subject: [lycoming] 160hp conversation for o320-e2d Can a certified O320-E2D be legally converted to 160hp without splitting the case and changing the main bearings? The crankshaft flange has been inspected for corrosion/pitting and I have the correct (160hp) pistons, pins and hardened cylinders. Is, has there been a STC to accomplish this? Can it be done with a 337 form? Does anyone have guidance regarding a 337? |
Eric Pekrul #19240 Charlie, Lycoming had 140, 150 and 160hp O320s long before they came out with the E2D and the 4 piece nose bearings for Cessna. |
frewjm
#19241 The great advantage of this group, we get the accumulated knowledge of pretty much the whole industry. Cheers J toggle quoted messageShow quoted text From: lycoming@groups.io [mailto:lycoming@groups.io] On Behalf Of Eric Pekrul Charlie, Lycoming had 140, 150 and 160hp O320s long before they came out with the E2D and the 4 piece nose bearings for Cessna. |
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