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mdnanwelch7(at)hotmail.co
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 Posted: Fri Mar 20, 2009 7:23 am Post subject: Kolb List: Anyone have experience with a Hirth F-30? |
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Larry C
If your cylinder heads run cool(ish) C and the EGTs run hot C this may be a result of too advanced timing. Is there any way to adjust timing to retard about 2-3 degrees?
Mike Welch
From: lcottrell(at)fmtcblue.com
To: kolb-list(at)matronics.com
Subject: Re: Re: Kolb List: Anyone have experience with a Hirth F-30?
Date: Fri C 20 Mar 2009 09:04:43 -0600
Bill C
At least half of the coolers air flow is blocked C but I still have the rest of the exposed top part taped off to get the oil temps up above 170 degrees. I will remove the tape when I fly today. The oil is plenty cool C the heads are not.
Larry
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lcottrell
Joined: 29 May 2006
Posts: 1494
Location: Jordan Valley, Or
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| Posted: Fri Mar 20, 2009 7:56 am Post subject: Kolb List: Anyone have experience with a Hirth F-30? |
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The cylinder heads are bumping redline at any rpm over 5200. (max is 6200 allowable) the EGT's max is 1400. They are 1150.
Larry
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zeprep251(at)aol.com
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| Posted: Fri Mar 20, 2009 2:48 pm Post subject: Kolb List: Anyone have experience with a Hirth F-30? |
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Larry,
Have a friend with HKS on a hawk. The cooler is mounted on the fuselage tube right behind the bulkhead. That leaves the heads unobstructed and still cools the oil well.The oil tank is just below engine level and about over the rear tank if it was in a Kolb FS.Get as much air to the heads as you can.
G.Aman
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