Today's Message Index:
----------------------
1. 02:50 PM - OATs & new engine (D Ford)
2. 04:15 PM - Re: OATs & new engine (Archie)
3. 05:07 PM - Re: OATs & new engine (Wes Hobbs)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | OATs & new engine |
--> Engines-List message posted by: "D Ford" <dford@michweb.net>
I am ready for my first flight in my RV but have hesitation due to OAT and breaking
in my overhauled engine. Is there any reason that the CHTs would be too
low to break in the rings? This weekend shoud be 15 to 25 degF, currently it's
below 10 deg. Someone told me to wait until it's above 30 deg. Looking for
more experience here...
Dave Ford
RV6
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: OATs & new engine |
--> Engines-List message posted by: "Archie" <archie97@earthlink.net>
> --> Engines-List message posted by: "D Ford" <dford@michweb.net>
>
> I am ready for my first flight in my RV but have hesitation due to OAT and
breaking in my overhauled engine. Is there any reason that the CHTs would
be too low to break in the rings? This weekend shoud be 15 to 25 degF,
currently it's below 10 deg. Someone told me to wait until it's above 30
deg. Looking for more experience here...
>
> Dave Ford
> RV6
Cooler weather temps are great for break-in.
Perhaps the hesitation is due to a cold engine on startup.
If your engine was overhauled using standard aircraft design
rings, and cross-hatched cylinders, you can expect an
elevation in cyl temps due to the friction of the rings
attempting to seat and conform to the cylinders.
Under these conditions, just keep the nose down to insure
an adequate supply of air during the higher cyl temps.
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
| Subject: | Re: OATs & new engine |
--> Engines-List message posted by: "Wes Hobbs" <weshobbs@starband.net>
Dave, You didn't say what type engine----Assuming it's an aircooled lyc.
preheat engine overnight with a 750 W heater and go fly. The cold air will
help cool the cyls. and increase the BMEP which is required to seat the
rings. Full throttle should do it at 3500' msl in about 20 minutes.------Wes
----- Original Message -----
From: "D Ford" <dford@michweb.net>
Subject: Engines-List: OATs & new engine
> --> Engines-List message posted by: "D Ford" <dford@michweb.net>
>
> I am ready for my first flight in my RV but have hesitation due to OAT and
breaking in my overhauled engine. Is there any reason that the CHTs would
be too low to break in the rings? This weekend shoud be 15 to 25 degF,
currently it's below 10 deg. Someone told me to wait until it's above 30
deg. Looking for more experience here...
>
> Dave Ford
> RV6
>
>
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|