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1. 11:43 AM - Re: Stratus EA-81 Cooling (Hinde, Frank George (Corvallis))
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| Subject: | Stratus EA-81 Cooling |
--> Stratus-List message posted by: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
Andy,
If you have don what I think you have, then I do not like your fuel
system design.
This is what I THINK you did...
You put a single pump that draws from both tanks using a selector valve
perhaps? You have a second pump on the firewall that is plumbed in
series with the wing tanks.
I say I think you did this because series plumbing of two pumps is the
only way your pressure will double like that.
Is this the case?...If so I think you should replumb your system as you
are asking for vapour lock....with deadly consequences...Admittedly the
the wing tank pump will have to fail for this to happen but its not
ideal by any stretch.
Let me know what you did and we can talk some more.
I will post this to the group, not to embarrass you, just simply to get
the word out.
Frank
-----Original Message-----
From: owner-stratus-list-server@matronics.com
[mailto:owner-stratus-list-server@matronics.com] On Behalf Of Andrew
SanClemente
Subject: RE: Stratus-List: Stratus EA-81 Cooling
--> Stratus-List message posted by: Andrew SanClemente
--> <ansancle@townisp.com>
Frank,
thanks for the info, everything is looking good except for the
paperwork! What a pain in the *#!!
I was going to pull the oil temp sensor, but I guess Ill wait now
until its under load for a while.
The other question I had is with regards to the fuel pressure. With
one fuel pump Im getting about 3.5-4psi and with two (engine and
wing) about 9psi. According to the stratus manual, 4-5.8 is the
allowable range. Should I run with one pump during normal flight and
two during takeoff/landing? The one pump is on the low end of the
range.
- Andy
DO NOT ARCHIVE
On Thu, 30 Sep 2004 16:24:02 -0700, Hinde, Frank George (Corvallis)
wrote:
>--> Stratus-List message posted by: "Hinde, Frank George
>(Corvallis)" <frank.hinde@hp.com>
>
>Your looking good Andrew,
>
>I am not at all surprised your oil temp did not move, mine wouldn't
>either. Until you get some sustained load on that motor it will not
>warm up oil wise.
>
>Your water temps seem a little low. The thermostat should open right
>around 180F so it should be making at least that.
>
>Try warming it up without taxiing and see if it will get there.
>
>Other than that your good to go!
>
>Frank
>
>HDS Stratus, Ram heads 344 hours
>
>Do not archive
>
>-----Original Message-----
>From: owner-stratus-list-server@matronics.com
>[mailto:owner-stratus-list-server@matronics.com] On Behalf Of Andrew
>SanClemente
>To: Stratus
>Subject: Stratus-List: Stratus EA-81 Cooling
>
>
>--> Stratus-List message posted by: Andrew SanClemente
>--> <ansancle@townisp.com>
>
>I am getting ready for my inspection (601 HDS - Stratus EA-81 RAM
>Heads) and did some taxi testing today. The outside air temperature was
>about 75 and I was taxiing back and forth down an out of the way
>taxi-way. My water temps never went over 160 and my CHT never went over
>180-190. I need to test my oil temp sensor as it never left the
>peg and the lowest reading on the gauge is 120. I find it hard to
>believe my oil temps didn't hit at least that.
>
>I have the standard cowl with the side blisters and the pan on the
>bottom. I did wrap the exhaust with the exhaust-wrap material from ACS
>and ensured the rear of my radiator is completely sealed to force
>the airflow through the radiator.
>I was not able to do any static testing with the RPM over 3000 since
>the brakes won't hold over about 3500 rpm.
>
>Since these temps are good with minimal airflow, is it safe to assume
>that when I have full airflow the temps will stay down even though
>the engine is working much harder?
>
>Thanks
>Andy
>
>Getting Very Close to flying
>
>
>_-
>
>
>_-
>
>
>_-
>
>
>_-
>
>
Frank,
thanks for the info, everything is looking good except for the
paperwork! What a pain in the *#!! I was going to pull the oil temp
sensor, but I guess Ill wait now until its under load for a while.
The other question I had is with regards to the fuel pressure. With one
fuel pump Im getting about 3.5-4psi and with two (engine and wing) about
9psi. According to the stratus manual, 4-5.8 is the allowable range.
Should I run with one pump during normal flight and two during
takeoff/landing? The one pump is on the low end of the range.
- Andy
DO NOT ARCHIVE
On Thu, 30 Sep 2004 16:24:02 -0700, Hinde, Frank George (Corvallis)
wrote: --=A0Stratus-List message posted by: Hinde, Frank George
(Corvallis) frank.hinde@hp.com
Your looking good Andrew,
I am not at all surprised your oil temp did not move, mine wouldn't
either. Until you get some sustained load on that motor it will not
warm up oil wise.
Your water temps seem a little low. The thermostat should open right
around 180F so it should be making at least that.
Try warming it up without taxiing and see if it will get there.
Other than that your good to go!
Frank
HDS Stratus, Ram heads 344 hours
Do not archive
-----Original Message-----
From: owner-stratus-list-server@matronics.com
[mailto:owner-stratus-list-server@matronics.com] On Behalf Of Andrew
SanClemente
To: Stratus
Subject: Stratus-List: Stratus EA-81 Cooling
--=A0Stratus-List message posted by: Andrew SanClemente
--=A0ansancle@townisp.com
I am getting ready for my inspection (601 HDS - Stratus EA-81 RAM
Heads) and did some taxi testing today. The outside air temperature
was about 75 and I was taxiing back and forth down an out of the way
taxi-way. My water temps never went over 160 and my CHT never went over
180-190.I need to test my oil temp sensor as it never left the peg and
the lowest reading on the gauge is 120. I find it hard to believe my
oil temps didn't hit at least that.
I have the standard cowl with the side blisters and the pan on the
bottom. I did wrap the exhaust with the exhaust-wrap material from ACS
and ensured the rear of my radiator is completely sealed to force the
airflow through the radiator. I was not able to do any static testing
with the RPM over 3000 since the brakes won't hold over about 3500 rpm.
Since these temps are good with minimal airflow, is it safe to assume
that when I have full airflow the temps will stay down even though the
engine is working much harder?
Thanks
Andy
Getting Very Close to flying
_-
_-
_-
_-
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