REFLECTOR: Thanks

Brian Michalk michalk at awpi.com
Sat Jun 22 10:02:57 CDT 2013


Don't forget about 100LL availability.
I know, it's like trying to time the stock market, and the phase in will 
probably be tens of years away.
If 100LL does go away, then you'll have to pull them again and go back 
to lower compression.


On 06/21/2013 10:46 PM, Lou Stedman wrote:
> Thanks for all who joined the conversation about the Ipad and which 
> software for flight planning was best. I have taken the 30 day trial 
> for Foreflight and we will see what happens.
> I have another subject I would like to bring up about engines. 
> Yesterday, while going through my conditional inspection at my local 
> AP shop, we found aluminum shavings in the oil filter. With that I 
> elected to pull all four jugs to have a look. What we found was wear 
> of one of the piston pins and some scoring of the barrel. One was very 
> noticeable the other three were slight. Not wanting to take the chance 
> of further damage, I have elected to take them into Penn Yan Aero for 
> work. I dropped them off today and Penn Yan said that at least one of 
> the pistons would need to be replaced but he thought the jugs would 
> mill up OK. Now I have a decision to make. I have always wanted to put 
> in high compression pistons to get that additional 20 HP, if that is 
> true. I am told that the increased compression will not put any extra 
> stress on the engine. What I don't know is what other concerns I 
> should have before making my decision. Would it have any effect on 
> cooling? Do I need to use a different plug? Does the higher 
> compression have any effect on starter? Any education from you engine 
> guys would be appreciated. Thanks
>
>
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