REFLECTOR: engine question

[Clayton Chase]

Lou:
Is your fuel burn increased by the same 16% or is it about the same?  I'll
assume it's a little higher, but is it as much higher?  If you fly at your
previous max of 155kt is your fuel burn lower than it was previously?

Clay


On Wed, Aug 14, 2013 at 1:45 PM, Scott Baker <scottb33333 at gmail.com> wrote:

>  Lou,
> What material metal did you find and what parts were wearing?
> Did the engine overhaul include a new/overhauled camshaft?
> Best,
> Scott B.
>
>
>
> On 8/14/2013 4:35 PM, Lou Stedman wrote:
>
>  On my last conditional inspection I found metal in my oil filter. After
> removing one of the cylinders I found the need to have my cylinders (4)
> taken down 10 thousands and new pistons put in. The total time since
> overhaul was just over 500 hrs. I have begun the break in period and have
> been pleasantly surprised. I am running 20W50 mineral oil and am not using
> near as much oil as I had expected. In the first seven hours I used one
> quart. Hoe that keeps up.
>
> The thing that most surprised me is the increase in power. I could
> understand the increase if my compression figures were down but they were
> not. For the last three years I have been running mid to high 70’s.
> Previously, my max RPM at full throttle in level flight was about 2500. Now
> my max is about 2650. My max IAS before was about 155kt and now it is about
> 180kt. Nothing about the aircraft has changed except for the cylinders. Can
> anyone shed some light on this? I am happy but confused.
>
>
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