M5 restoration project

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freedom
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Re: M5 restoration project

Post by freedom »

could anyone installing a 540, tell me what is the spinner diameter at the base?

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maules.com
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Re: M5 restoration project

Post by maules.com »

There are a number of different props that can be used on the various Lyc 540 engines on the Maule's and the spinners have different diameters and shapes.
McCauley 2 and 3 blade, Hartzell 2 and 3 blade, MT 2 and 3 blade.
Jeremy
www.maules.com
Maule AK Worldwide

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freedom
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Re: M5 restoration project

Post by freedom »

True.. I’ve installed an hartzell 3 blades. A friend got me a metal spinner that looks awesome but also gigantic. Since I’m restoring the cowlings right now I cannot try and fit. The diameter is 15in. If placed above the upper cowling it follows the same curve which is encouraging.

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maules.com
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Re: M5 restoration project

Post by maules.com »

I'd say custom fit it for best airflow for engine cooling. The Maule cowling top front sometimes matched up well and other times was off to the side, sometimes too high sometimes too low. Depended on how the cowling was fitted at firewall but taking into account clearances of mufflers, alternate air tube, air intake, side baffles, alternater bracket, starter etc.
The later Maule cowling top front was more generic and allowed for misalignment with the various spinners.
Jeremy
www.maules.com
Maule AK Worldwide

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