Mailing List flyrotary@lancaironline.net Message #65731
From: Matt Boiteau mattboiteau@gmail.com <flyrotary@lancaironline.net>
Subject: Re: [FlyRotary] First engine run -- prop or not?
Date: Thu, 21 May 2020 16:28:07 -0400
To: Rotary motors in aircraft <flyrotary@lancaironline.net>
I've put over 10hrs on the bench without a prop on. Kept the revs under 5000. No issues here, good for debugging and modifications on the fly. You have the psru on, fly wheel, water pump, alt, so a bit of a load anyways.

There are some Mazda manuals on break in procedures in cars. Basically don't sit at one rpm for a long time. Everyone will give you their opinion on breaking procedures. Some say to start it up and drive it like you stole it, some say to baby it.



- Matt Boiteau

On Thu, May 21, 2020, 09:24 Finn Lassen finn.lassen@verizon.net <flyrotary@lancaironline.net> wrote:
1) Without prop any vibration will be from engine and PSRU and can
inspect engine (leaks, etc.) with no fear of prop.

2) With prop less chance of over rev and some cooling air through rads
and oil cooler.

What do you think?

Finn



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