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Conversion of C75-12F to C85

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19 Apr 2017 18:02 #888 by Arlan Allen
Arlan Allen replied the topic: Conversion of C75-12F to C85
The Ercoupe Parts Manual calls for 3 baffles each with it's own part number. All models with C-85 engines. I will dig out the part numbers and post them.

Arlan
N3989H
415CD SN4690

Alan Allen
N3989H

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09 Apr 2017 07:34 #870 by Kevin Gassert
Kevin Gassert replied the topic: Conversion of C75-12F to C85
The extra baffles are only required with the Beech controllable prop.

Kevin
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09 Apr 2017 00:06 #869 by Arlan Allen
Arlan Allen replied the topic: Conversion of C75-12F to C85
A couple of engine baffles also need to be added.

Alan Allen
N3989H
The following user(s) said Thank You: George Sellers

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04 Apr 2017 13:23 #863 by Kevin Gassert
Kevin Gassert replied the topic: Conversion of C75-12F to C85
The wide trim tab is not required. A trim tab is required but either the 3/4 inch o1-3/8 is acceptable.

Kevin
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11 Mar 2017 10:51 - 11 Mar 2017 10:52 #841 by George Sellers
George Sellers created the topic: Conversion of C75-12F to C85
I understand that to convert my C75-12F to a C85 hp the main thing that needs to be done (besides having the correct prop) is the following:

The carb need to be changed to a 1 3/8 venturi and the metering jet to a #45 size jet.
22031-4 TRIM TAB PLATE - 1 3/8" WIDE (Required for C-85 Engine)

Have any of you had that done? If so, how do you like it? What are things to consider? Etc.

Thanks--George
Last Edit: 11 Mar 2017 10:52 by George Sellers. Reason: Correct name spelling!!!

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