Today's Message Index:
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1. 11:04 AM - oil cooler (boyd)
2. 11:34 AM - Re: oil cooler (John Hauck)
3. 05:30 PM - Tach Calibration (John Hauck)
4. 07:29 PM - Re: oil cooler (Doug Wetzel)
Message 1
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Maybe a little lower
engine oil temp and a little higher CHT.
john h
mkIII
>>>>>>>>>>>>
john
why would a lower oil temp result in a higher cht?
boyd
Message 2
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| boyd
Hi Boyd:
Good question. I am glad you asked.
Folks, you don't get much past Boyd.
The new oil cooler is about 1.5 to 2" taller than the old one. It is
piggy backed on the radiator. Figured covering up more of the
radiator would bring up the CHT, while lowering the eng oil temp.
However, it may cancel itself out. Don't know yet. Have not test
flown with the new cooler.
Temps here are conducive to eng oil cooler testing. Yesterday was 94F
and today is 92F.
Main thing I was shooting for was bring down the eng oil temp so I
could run hard in hotter OAT. May have to swing by Death Valley this
trip to test it. ;-)
john h
mkIII
Message 3
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| Subject: | Tach Calibration |
Hi Gang:
Did not take time to calibrate the old tach after installing the new
912ULS. Got her dialed in and flew to Lakeland and back. 18.0 hours
on the new engine today. Did a tack calibration and was surprised
that it was off by about 300 rpm. I thought I was turning 5,400
static, but was actually turning 5,700. Like flying with a 5 speed
and cruising in 4th. We'll take care of that little problem tomorrow.
Should be able to pull another 1.5 degrees of pitch into the prop.
Ought to do wonders for my cruise speed and fuel burn. We shall see
what happens during the flight West. Nothing sorts out an airplane
and pilot than spending two, three, four weeks in the cockpit and
flying a hundred hours or so. If there is something you want to find
out about the system, you will find out on a cross country like that.
Two days and counting,
john h
mkIII
Message 4
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I think you'll find the Utah weather accommodating enough for you, John. It
was 91 here in Salt Lake yesterday.
Doug Wetzel
-----Original Message-----
From: owner-kolb-list-server@matronics.com
[mailto:owner-kolb-list-server@matronics.com]On Behalf Of John Hauck
Sent: Saturday, May 12, 2007 12:34 PM
Subject: Re: Kolb-List: oil cooler
|
| boyd
Hi Boyd:
Good question. I am glad you asked.
Folks, you don't get much past Boyd.
The new oil cooler is about 1.5 to 2" taller than the old one. It is
piggy backed on the radiator. Figured covering up more of the
radiator would bring up the CHT, while lowering the eng oil temp.
However, it may cancel itself out. Don't know yet. Have not test
flown with the new cooler.
Temps here are conducive to eng oil cooler testing. Yesterday was 94F
and today is 92F.
Main thing I was shooting for was bring down the eng oil temp so I
could run hard in hotter OAT. May have to swing by Death Valley this
trip to test it. ;-)
john h
mkIII
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