REFLECTOR: engine question

[Scott Baker]

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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