Today's Message Index:
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1. 04:44 PM - 912 over heating (frank goodnight)
2. 09:06 PM - Re: 912 over heating (John Marzulli)
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| Subject: | 912 over heating |
Hello 701 builders and flyers'
Just finished my 701 , about a hour and a half
flight time.
Have a problem with overheating --912 ULS--
that came off a Titan Tornado.Engine is in good shape 800 hrs.
When trying to fly around the pattern the CHT will
trend towards overheat about, half way around I aborted at 270 F , the oil temp
also looks like it would over temp--250 F and going up
After landing the temps continue to go up as I tried to idle
and cool down. Removed the cowling and flew at various
power settings and speeds for about an hour.All temps are normal--
oil @235F--CHT@around 200F.
Another 912 uls user told me that when he first started up he had a over heat
problem that was caused by a air bubble trapped in the
water circuit that worked itself out over time.
I would like to hear from any one that has had similar
problem. Or know what might be causing it , and best of all the cure.Thanks
Frank Goodnight
Fayetteville Arkansas
Kolb Firestar--HKS engine 200+ hrs.
Zenith 701-- 912 ULS engine 1+ hrs
Message 2
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| Subject: | Re: 912 over heating |
What cowling are you using? Do you have enough of the radiator exposed? Any
pictures you can share?
With the newer style 701 cowling my plane suffers from low oil & CHTs this
time of year. The entire radiator and oil cooler are covered in aluminum
tape.
John Marzulli
http://MarzulliPhoto.net/
http://701Builder.blogspot.com/
On Sat, Dec 15, 2012 at 4:44 PM, frank goodnight <frank.goodnight@att.net>wrote:
> Hello 701 builders and flyers'
> Just finished my 701 , about a hour and a half
> flight time.
> Have a problem with overheating --912 ULS--
> that came off a Titan Tornado.Engine is in good shape 800 hrs.
> When trying to fly around the pattern the CHT will
> trend towards overheat about, half way around I aborted at 270 F , the oil
> temp
> also looks like it would over temp--250 F and going up
> After landing the temps continue to go up as I tried to idle
> and cool down. Removed the cowling and flew at various
> power settings and speeds for about an hour.All temps are normal--
> oil @235F--CHT@around 200F.
> Another 912 uls user told me that when he first started up he had a over
> heat problem that was caused by a air bubble trapped in the
> water circuit that worked itself out over time.
> I would like to hear from any one that has had similar
> problem. Or know what might be causing it , and best of all the cure.Thanks
> Frank Goodnight
> Fayetteville Arkansas
> Kolb Firestar--HKS engine 200+ hrs.
> Zenith 701-- 912 ULS engine 1+ hrs
>
>
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