Today's Message Index:
----------------------
1. 12:57 AM - Fw: Impedance matching (Gordon Anderson)
2. 05:53 AM - Re: Oil capacity (Flysrv10)
3. 06:50 AM - Re: Oil capacity (Rene)
4. 07:12 AM - Re: Oil capacity (Lenny Iszak)
5. 07:36 AM - Re: Re: Oil capacity (Rene)
6. 10:20 AM - Re: Oil capacity (Carl Froehlich)
7. 11:22 AM - Re: Oil capacity (P Reid)
8. 11:47 AM - Re: Oil capacity (David Clifford)
9. 11:48 AM - Re: Oil capacity (Flysrv10)
10. 11:52 AM - Re: Oil capacity (Flysrv10)
11. 01:40 PM - Re: Oil capacity (Deems Davis)
12. 02:04 PM - Re: Oil capacity (Carl Froehlich)
13. 03:41 PM - Re: Oil capacity (Linn Walters)
14. 05:32 PM - Re: Fw: Impedance matching (Bob Turner)
15. 07:05 PM - Re: Oil capacity ()
Message 1
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| Subject: | Fwd: Impedance matching |
Hi all,
I am trying to hook up audio outputs from a Garrecht TRX-1500 (3Vpp, 8 Ohm) and
Dynon Skyview (10V, 50 Ohm, output volume controllable by software setting) into
a PMA5000EX (510 Ohm, max 3Vpp input or "damage will occur").
Partial feedback from suppliers is confusing - according to PSE / ACS the Skyview
should be OK if I hook it up directly (despite potentially much higher output
voltage than the audio panel accepts), but the TRX-1500 is problematic. I am
tending towards fitting a 470 Ohm trim pot across each output as a voltage divider
using the wiper and common ground as input for the audio panel, more or
less as proposed by Garrecht for a line level input. Can anyone tell me if I
am on the right or wrong track?
Gordon Anderson
Switzerland, 41015
Message 2
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| Subject: | Re: Oil capacity |
Carl,
Which air/oil separator do you have?
I seem to only keep 6 QTS without throwing it overboard. Yesterday I had a fuel
stop in Austin area where the temps on the ramp wee 98 deg. The engine was heat
soaked already and I had serious oil temp limitations on climb out.
I am wondering if installing an air/oil separator and increasing the the engine
oil might improve things.
Sent from my iPhone
> On May 26, 2016, at 7:59 PM, Carl Froehlich <carl.froehlich@verizon.net> wrote:
>
>
> I keep the sump between 9 and 9 1/2 quarts. That seems to be about right for
not blowing out the breather.
>
> I also have a air/oil separator on the breather line and collect that oil in
a small container (I don't return it to the engine). Every oil change I have
a few ounces in the container. It is not much, but a few ounces on the belly
can make a big mess.
>
> Carl
>
>> On May 26, 2016, at 9:32 PM, Flysrv10 <flysrv10@gmail.com> wrote:
>>
>>
>> Guys,
>>
>> How many QTS of oil can you hold in your IO540 without spitting it overboard?
>>
>> Do you have a crankcase vent recovery canister (not sure what they are called)?
>>
>> Do not archive.
>>
>> Sent from my iPhone
>
>
>
>
>
>
Message 3
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Mine likes it less than 8. I add 9 at the oil change and then add a
quarter between 6-7 if needed before the next oil change.
Rene'
801-721-6080
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of David Saylor
Sent: Thursday, May 26, 2016 11:40 PM
Subject: Re: RV10-List: Oil capacity
I put in 10 at the oil change, then add a quart around 8. 9 seems to be
my sweet spot. I let it go a little below 8 if I'm coming up on the oil
change.
The D4A5 holds 12. Other models might be different.
--Dave
On Thu, May 26, 2016 at 6:32 PM, Flysrv10 <flysrv10@gmail.com> wrote:
Guys,
How many QTS of oil can you hold in your IO540 without spitting it
overboard?
Do you have a crankcase vent recovery canister (not sure what they are
called)?
Do not archive.
Sent from my iPhone
-List" rel="noreferrer"
target="_blank">http://www.matronics.com/Navigator?RV10-List
FORUMS -
eferrer" target="_blank">http://forums.matronics.com
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errer" target="_blank">http://wiki.matronics.com
b Site -
-Matt Dralle, List Admin.
rel="noreferrer"
target="_blank">http://www.matronics.com/contribution
Message 4
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| Subject: | Re: Oil capacity |
I've been adding 9qt+CamGuard, it goes down quickly to 8.5 where the consumption
stabilizes. I refill it at 7.5. Stock D4A5.
I always wondered does the oil temp creep up when you get down into the 6s?
Lenny
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=456607#456607
Message 5
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| Subject: | Re: Oil capacity |
I have done a little testing there and I cannot see a difference. I also
went to straight 100 weight during the summer and did not note a difference.
Hot days and heat soaked engine always results in much slower climbs because
of oil and cylinder head temps.
Rene'
801-721-6080
-----Original Message-----
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Lenny Iszak
Sent: Friday, May 27, 2016 8:11 AM
Subject: RV10-List: Re: Oil capacity
--> <lenard@rapiddecision.com>
I've been adding 9qt+CamGuard, it goes down quickly to 8.5 where the
consumption stabilizes. I refill it at 7.5. Stock D4A5.
I always wondered does the oil temp creep up when you get down into the 6s?
Lenny
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=456607#456607
Message 6
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I suspect 9 quarts would help mitigate your oil temp issue compared to six
quarts - somewhat. If you are having continued oil temp issues I'd also
guess you are using the stock Van's oil cooler and firewall oil cooler
mount.
Do you loop the crankcase breather hose up the firewall before going down to
drip on an exhaust pipe?
I'm using this separator:
http://antisplataero.com/products/the-asa-oil-separator I cannot tell you it
works any better than other options, but I'm happy with it.
Carl
-----Original Message-----
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Flysrv10
Sent: Friday, May 27, 2016 8:52 AM
Subject: Re: RV10-List: Oil capacity
Carl,
Which air/oil separator do you have?
I seem to only keep 6 QTS without throwing it overboard. Yesterday I had a
fuel stop in Austin area where the temps on the ramp wee 98 deg. The engine
was heat soaked already and I had serious oil temp limitations on climb out.
I am wondering if installing an air/oil separator and increasing the the
engine oil might improve things.
Sent from my iPhone
> On May 26, 2016, at 7:59 PM, Carl Froehlich <carl.froehlich@verizon.net>
wrote:
>
> --> <carl.froehlich@verizon.net>
>
> I keep the sump between 9 and 9 1/2 quarts. That seems to be about right
for not blowing out the breather.
>
> I also have a air/oil separator on the breather line and collect that oil
in a small container (I don't return it to the engine). Every oil change I
have a few ounces in the container. It is not much, but a few ounces on the
belly can make a big mess.
>
> Carl
>
>> On May 26, 2016, at 9:32 PM, Flysrv10 <flysrv10@gmail.com> wrote:
>>
>>
>> Guys,
>>
>> How many QTS of oil can you hold in your IO540 without spitting it
overboard?
>>
>> Do you have a crankcase vent recovery canister (not sure what they are
called)?
>>
>> Do not archive.
>>
>> Sent from my iPhone
>
>
>
>
>
>
Message 7
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Oil/ air is a nice (cleaner) feature and antisplataero is first rate in his products,
but you shouldnt need to opt for this if the engine doesnt want more than
6qts, I think maybe higher oil pressure from recycling versus releasing it
out, maybe not a real issue, but you should be able to keep temps down with 6qts.
I would still consider the air/oil to keep the belly clean but not to resolve
the temps.
What (consistent) oil temps are you seeing 245F? 220? 200?, is this in climb and
cruise? I am assuming your CHTs are close to or above 400F and the oil is having
a tough time with the climb, so I decrease angle and rate by reducing power
and leaning (but that only happened 2 times in the last 400 hours) and that
helps- but what about after the climb in cruise? Temps should be 200F or lower.
165-220 is the range for normal use, are you in that range?
From: Carl Froehlich
Sent: Friday, May 27, 2016 10:23 AM
Subject: RE: RV10-List: Oil capacity
-- RV10-List message posted by: "Carl Froehlich" carl.froehlich@verizon.net
I suspect 9 quarts would help mitigate your oil temp issue compared to six
quarts - somewhat. If you are having continued oil temp issues I'd also
guess you are using the stock Van's oil cooler and firewall oil cooler
mount.
Do you loop the crankcase breather hose up the firewall before going down to
drip on an exhaust pipe?
I'm using this separator:
http://antisplataero.com/products/the-asa-oil-separator I cannot tell you it
works any better than other options, but I'm happy with it.
Carl
-----Original Message-----
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Flysrv10
Sent: Friday, May 27, 2016 8:52 AM
Subject: Re: RV10-List: Oil capacity
-- RV10-List message posted by: Flysrv10 flysrv10@gmail.com
Carl,
Which air/oil separator do you have?
I seem to only keep 6 QTS without throwing it overboard. Yesterday I had a
fuel stop in Austin area where the temps on the ramp wee 98 deg. The engine
was heat soaked already and I had serious oil temp limitations on climb out.
I am wondering if installing an air/oil separator and increasing the the
engine oil might improve things.
Sent from my iPhone
On May 26, 2016, at 7:59 PM, Carl Froehlich carl.froehlich@verizon.net
wrote:
-- RV10-List message posted by: Carl Froehlich
-- carl.froehlich@verizon.net
I keep the sump between 9 and 9 1/2 quarts. That seems to be about right
for not blowing out the breather.
I also have a air/oil separator on the breather line and collect that oil
in a small container (I don't return it to the engine). Every oil change I
have a few ounces in the container. It is not much, but a few ounces on the
belly can make a big mess.
Carl
On May 26, 2016, at 9:32 PM, Flysrv10 flysrv10@gmail.com wrote:
-- RV10-List message posted by: Flysrv10 flysrv10@gmail.com
Guys,
How many QTS of oil can you hold in your IO540 without spitting it
overboard?
Do you have a crankcase vent recovery canister (not sure what they are
called)?
Do not archive.
Sent from my iPhone
Message 8
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| Subject: | Re: Oil capacity |
IO-540 V4A5 with an 8 qt. capacity. No problems with high oil temps and I a
dd oil when it drops to 7 quarts.
----- Original Message -----
From: "P Reid" <rv10flyer@live.com>
Sent: Friday, May 27, 2016 2:21:41 PM
Subject: RE: RV10-List: Oil capacity
Oil/ air is a nice (cleaner) feature and antisplataero is first rate in his
products, but you shouldn=99t need to opt for this if the engine doe
sn=99t want more than 6qts, I think maybe higher oil pressure from re
cycling versus releasing it out, maybe not a real issue, but you should be
able to keep temps down with 6qts. I would still consider the air/oil to ke
ep the belly clean but not to resolve the temps.
What (consistent) oil temps are you seeing 245F? 220? 200?, is this in clim
b and cruise? I am assuming your CHT=99s are close to or above 400F a
nd the oil is having a tough time with the climb, so I decrease angle and r
ate by reducing power and leaning (but that only happened 2 times in the la
st 400 hours) and that helps- but what about after the climb in cruise? Tem
ps should be 200F or lower.
165-220 is the range for normal use, are you in that range?
From: Carl Froehlich
Sent: Friday, May 27, 2016 10:23 AM
Subject: RE: RV10-List: Oil capacity
-- RV10-List message posted by: "Carl Froehlich" carl.froehlich@verizon.net
I suspect 9 quarts would help mitigate your oil temp issue compared to six
quarts - somewhat. If you are having continued oil temp issues I'd also
guess you are using the stock Van's oil cooler and firewall oil cooler
mount.
Do you loop the crankcase breather hose up the firewall before going down t
o
drip on an exhaust pipe?
I'm using this separator:
http://antisplataero.com/products/the-asa-oil-separator I cannot tell you i
t
works any better than other options, but I'm happy with it.
Carl
-----Original Message-----
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Flysrv10
Sent: Friday, May 27, 2016 8:52 AM
Subject: Re: RV10-List: Oil capacity
-- RV10-List message posted by: Flysrv10 flysrv10@gmail.com
Carl,
Which air/oil separator do you have?
I seem to only keep 6 QTS without throwing it overboard. Yesterday I had a
fuel stop in Austin area where the temps on the ramp wee 98 deg. The engine
was heat soaked already and I had serious oil temp limitations on climb out
.
I am wondering if installing an air/oil separator and increasing the the
engine oil might improve things.
Sent from my iPhone
On May 26, 2016, at 7:59 PM, Carl Froehlich carl.froehlich@verizon.net
wrote:
-- RV10-List message posted by: Carl Froehlich
-- carl.froehlich@verizon.net
I keep the sump between 9 and 9 1/2 quarts. That seems to be about right
for not blowing out the breather.
I also have a air/oil separator on the breather line and collect that oil
in a small container (I don't return it to the engine). Every oil change I
have a few ounces in the container. It is not much, but a few ounces on the
belly can make a big mess.
Carl
On May 26, 2016, at 9:32 PM, Flysrv10 flysrv10@gmail.com wrote:
-- RV10-List message posted by: Flysrv10 flysrv10@gmail.com
Guys,
How many QTS of oil can you hold in your IO540 without spitting it
overboard?
Do you have a crankcase vent recovery canister (not sure what they are
called)?
Do not archive.
Sent from my iPhone
===========
===========
===========
===========
===========
Message 9
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| Subject: | Re: Oil capacity |
Carl,
Yes to all your questions. I guess I should also be looking into a different oil
cooler. Any suggestions?
Sent from my iPhone
> On May 27, 2016, at 11:20 AM, Carl Froehlich <carl.froehlich@verizon.net> wrote:
>
>
> I suspect 9 quarts would help mitigate your oil temp issue compared to six
> quarts - somewhat. If you are having continued oil temp issues I'd also
> guess you are using the stock Van's oil cooler and firewall oil cooler
> mount.
>
> Do you loop the crankcase breather hose up the firewall before going down to
> drip on an exhaust pipe?
>
> I'm using this separator:
> http://antisplataero.com/products/the-asa-oil-separator I cannot tell you it
> works any better than other options, but I'm happy with it.
>
> Carl
>
> -----Original Message-----
> From: owner-rv10-list-server@matronics.com
> [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Flysrv10
> Sent: Friday, May 27, 2016 8:52 AM
> To: rv10-list@matronics.com
> Subject: Re: RV10-List: Oil capacity
>
>
> Carl,
>
> Which air/oil separator do you have?
>
> I seem to only keep 6 QTS without throwing it overboard. Yesterday I had a
> fuel stop in Austin area where the temps on the ramp wee 98 deg. The engine
> was heat soaked already and I had serious oil temp limitations on climb out.
>
>
> I am wondering if installing an air/oil separator and increasing the the
> engine oil might improve things.
>
> Sent from my iPhone
>
>>> On May 26, 2016, at 7:59 PM, Carl Froehlich <carl.froehlich@verizon.net>
>> wrote:
>>
>> --> <carl.froehlich@verizon.net>
>>
>> I keep the sump between 9 and 9 1/2 quarts. That seems to be about right
> for not blowing out the breather.
>>
>> I also have a air/oil separator on the breather line and collect that oil
> in a small container (I don't return it to the engine). Every oil change I
> have a few ounces in the container. It is not much, but a few ounces on the
> belly can make a big mess.
>>
>> Carl
>>
>>> On May 26, 2016, at 9:32 PM, Flysrv10 <flysrv10@gmail.com> wrote:
>>>
>>>
>>> Guys,
>>>
>>> How many QTS of oil can you hold in your IO540 without spitting it
> overboard?
>>>
>>> Do you have a crankcase vent recovery canister (not sure what they are
> called)?
>>>
>>> Do not archive.
>>>
>>> Sent from my iPhone
>
>
>
>
>
>
>
>
>
Message 10
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|
| Subject: | Re: Oil capacity |
So my oil temp went to 223 during climb and I decreased AOA to lower the temps.
I found that I had to climb at 300'/min to bring the oil temp to 213.
The CHT goes up to 425 but I can control that a little better with richer fuel.
At cruise, I do really well. Around 170-180 for oil and 360 for CHT.
Sent from my iPhone
> On May 27, 2016, at 12:21 PM, P Reid <rv10flyer@live.com> wrote:
>
>
> Oil/ air is a nice (cleaner) feature and antisplataero is first rate in his products,
but you shouldnt need to opt for this if the engine doesnt want more
than 6qts, I think maybe higher oil pressure from recycling versus releasing it
out, maybe not a real issue, but you should be able to keep temps down with
6qts. I would still consider the air/oil to keep the belly clean but not to resolve
the temps.
>
>
> What (consistent) oil temps are you seeing 245F? 220? 200?, is this in climb
and cruise? I am assuming your CHTs are close to or above 400F and the oil is
having a tough time with the climb, so I decrease angle and rate by reducing power
and leaning (but that only happened 2 times in the last 400 hours) and that
helps- but what about after the climb in cruise? Temps should be 200F or lower.
> 165-220 is the range for normal use, are you in that range?
>
>
>
>
> From: Carl Froehlich
> Sent: Friday, May 27, 2016 10:23 AM
> To: rv10-list@matronics.com
> Subject: RE: RV10-List: Oil capacity
>
>
>
>
>
>
> -- RV10-List message posted by: "Carl Froehlich" carl.froehlich@verizon.net
>
> I suspect 9 quarts would help mitigate your oil temp issue compared to six
> quarts - somewhat. If you are having continued oil temp issues I'd also
> guess you are using the stock Van's oil cooler and firewall oil cooler
> mount.
>
> Do you loop the crankcase breather hose up the firewall before going down to
> drip on an exhaust pipe?
>
> I'm using this separator:
> http://antisplataero.com/products/the-asa-oil-separator I cannot tell you it
> works any better than other options, but I'm happy with it.
>
> Carl
>
> -----Original Message-----
> From: owner-rv10-list-server@matronics.com
> [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Flysrv10
> Sent: Friday, May 27, 2016 8:52 AM
> To: rv10-list@matronics.com
> Subject: Re: RV10-List: Oil capacity
>
> -- RV10-List message posted by: Flysrv10 flysrv10@gmail.com
>
> Carl,
>
> Which air/oil separator do you have?
>
> I seem to only keep 6 QTS without throwing it overboard. Yesterday I had a
> fuel stop in Austin area where the temps on the ramp wee 98 deg. The engine
> was heat soaked already and I had serious oil temp limitations on climb out.
>
>
> I am wondering if installing an air/oil separator and increasing the the
> engine oil might improve things.
>
> Sent from my iPhone
>
> On May 26, 2016, at 7:59 PM, Carl Froehlich carl.froehlich@verizon.net
> wrote:
>
> -- RV10-List message posted by: Carl Froehlich
> -- carl.froehlich@verizon.net
>
> I keep the sump between 9 and 9 1/2 quarts. That seems to be about right
> for not blowing out the breather.
>
> I also have a air/oil separator on the breather line and collect that oil
> in a small container (I don't return it to the engine). Every oil change I
> have a few ounces in the container. It is not much, but a few ounces on the
> belly can make a big mess.
>
> Carl
>
> On May 26, 2016, at 9:32 PM, Flysrv10 flysrv10@gmail.com wrote:
>
> -- RV10-List message posted by: Flysrv10 flysrv10@gmail.com
>
> Guys,
>
> How many QTS of oil can you hold in your IO540 without spitting it
> overboard?
>
> Do you have a crankcase vent recovery canister (not sure what they are
> called)?
>
> Do not archive.
>
> Sent from my iPhone
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
Message 11
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| Subject: | Re: Oil capacity |
I live in AZ and CHT and Oil Temps had been a problem since day1.
(compounded by my choice to install the same james plenum) I invested time
and $'s into louvers, upgraded oil coolers, etc. For me the ultimate
solution was to fabricate a ram air intake that attached to the lower
cowl. In my case I have a 3 bld prop and the lower cowl needs to have the
gear leg slot elongated in order tog get the lower cowl off. There is a
slot cover that attaches with nutplates to close the slot when the lower
cowl is in place. The slot cover was the perfect platform to support the
ram air intake. I made a 3" fiberglass tube and cut an opening in the slot
cover. I used micro balloons to fair the tube to the slot cover. I closed
off the oil cooler air intake at the #6 cly and prosealed and riveted a
cover in place of the old hole. I used some foam blocks and carved a ~ 90
deg elbow that attaches to the top of the oil cooler intake. the elbow
reduces the intake diameter to 3". I coupled the ram air cover plate to the
oil cooler elbow using 3" scat tube. Oil Temps dropped 20-30 degs and #6
CHT is now within 5 degs of all other cyls. The stock Van's design IMO is
marginal at best. The oil cooler needs its own air supply and not bleed air
from the cowl/plenum.
anything over 8 qts gets sent thru the breather, took me a long time get
comfortable with this, but oild cunsumption is MUCH better. I add a qt @ 7.
Deems
On Fri, May 27, 2016 at 11:47 AM, Flysrv10 <flysrv10@gmail.com> wrote:
>
> Carl,
>
> Yes to all your questions. I guess I should also be looking into a
> different oil cooler. Any suggestions?
>
> Sent from my iPhone
>
> > On May 27, 2016, at 11:20 AM, Carl Froehlich <carl.froehlich@verizon.net>
> wrote:
> >
> carl.froehlich@verizon.net>
> >
> > I suspect 9 quarts would help mitigate your oil temp issue compared to
> six
> > quarts - somewhat. If you are having continued oil temp issues I'd also
> > guess you are using the stock Van's oil cooler and firewall oil cooler
> > mount.
> >
> > Do you loop the crankcase breather hose up the firewall before going
> down to
> > drip on an exhaust pipe?
> >
> > I'm using this separator:
> > http://antisplataero.com/products/the-asa-oil-separator I cannot tell
> you it
> > works any better than other options, but I'm happy with it.
> >
> > Carl
> >
> > -----Original Message-----
> > From: owner-rv10-list-server@matronics.com
> > [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Flysrv10
> > Sent: Friday, May 27, 2016 8:52 AM
> > To: rv10-list@matronics.com
> > Subject: Re: RV10-List: Oil capacity
> >
> >
> > Carl,
> >
> > Which air/oil separator do you have?
> >
> > I seem to only keep 6 QTS without throwing it overboard. Yesterday I had
> a
> > fuel stop in Austin area where the temps on the ramp wee 98 deg. The
> engine
> > was heat soaked already and I had serious oil temp limitations on climb
> out.
> >
> >
> > I am wondering if installing an air/oil separator and increasing the the
> > engine oil might improve things.
> >
> > Sent from my iPhone
> >
> >>> On May 26, 2016, at 7:59 PM, Carl Froehlich <
> carl.froehlich@verizon.net>
> >> wrote:
> >>
> >> --> <carl.froehlich@verizon.net>
> >>
> >> I keep the sump between 9 and 9 1/2 quarts. That seems to be about
> right
> > for not blowing out the breather.
> >>
> >> I also have a air/oil separator on the breather line and collect that
> oil
> > in a small container (I don't return it to the engine). Every oil
> change I
> > have a few ounces in the container. It is not much, but a few ounces on
> the
> > belly can make a big mess.
> >>
> >> Carl
> >>
> >>> On May 26, 2016, at 9:32 PM, Flysrv10 <flysrv10@gmail.com> wrote:
> >>>
> >>>
> >>> Guys,
> >>>
> >>> How many QTS of oil can you hold in your IO540 without spitting it
> > overboard?
> >>>
> >>> Do you have a crankcase vent recovery canister (not sure what they are
> > called)?
> >>>
> >>> Do not archive.
> >>>
> >>> Sent from my iPhone
> >
> >
> >
> >
> >
> >
> >
> >
> >
>
>
Message 12
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Perhaps you need to gather more data and decide if you have a problem or
not. Assuming you started off well heat soaked and that you are
climbing with both high temperature and humidity, these numbers are not
that far out. Your 300 fpm climb however is way low - perhaps that was
an anomaly in data collection.
I climb at 130 kts IAS after the initial takeoff to promote cooling
(using a James cowl and plenum that I am very happy to have). At gross
this provides perhaps 800 fpm on a hot day. I'm typically watching CHT
as I've never had oil temps above 220 or so. After 6000' or so I'll
start leaning to keep EGTs up at about what they started with. After
6000' CHTs start to come down as engine power is going down with
altitude.
In cruise on a hot day I have the oil cooler door half shut to keep oil
temp above 180. CHTs are in the 340 to 360 range.
If after you do your flight data analysis you still think you have an
oil cooling problem, you can look at what others have done. I'm using
the Airflow System 2006X cooler (same dimensions as the Van's 20006A
cooler).
http://www.aircraftspruce.com/catalog/eppages/xseriesOilCooler.php
The attached photos show how I mounted the cooler. Not shown is a
bracket on the forward end of the cooler attaching it to the engine
mount with an Adel clamp.
Carl
-----Original Message-----
From: owner-rv10-list-server@matronics.com
[mailto:owner-rv10-list-server@matronics.com] On Behalf Of Flysrv10
Sent: Friday, May 27, 2016 2:52 PM
Subject: Re: RV10-List: Oil capacity
So my oil temp went to 223 during climb and I decreased AOA to lower the
temps. I found that I had to climb at 300'/min to bring the oil temp to
213.
The CHT goes up to 425 but I can control that a little better with
richer fuel.
At cruise, I do really well. Around 170-180 for oil and 360 for CHT.
Sent from my iPhone
> On May 27, 2016, at 12:21 PM, P Reid <rv10flyer@live.com> wrote:
>
>
> Oil/ air is a nice (cleaner) feature and antisplataero is first rate
in his products, but you shouldn=99t need to opt for this if the
engine doesn=99t want more than 6qts, I think maybe higher oil
pressure from recycling versus releasing it out, maybe not a real issue,
but you should be able to keep temps down with 6qts. I would still
consider the air/oil to keep the belly clean but not to resolve the
temps.
>
>
> What (consistent) oil temps are you seeing 245F? 220? 200?, is this in
climb and cruise? I am assuming your CHT=99s are close to or above
400F and the oil is having a tough time with the climb, so I decrease
angle and rate by reducing power and leaning (but that only happened 2
times in the last 400 hours) and that helps- but what about after the
climb in cruise? Temps should be 200F or lower.
> 165-220 is the range for normal use, are you in that range?
>
>
>
>
> From: Carl Froehlich
> Sent: Friday, May 27, 2016 10:23 AM
> To: rv10-list@matronics.com
> Subject: RE: RV10-List: Oil capacity
>
>
>
>
>
>
> -- RV10-List message posted by: "Carl Froehlich"
> carl.froehlich@verizon.net
>
> I suspect 9 quarts would help mitigate your oil temp issue compared to
> six quarts - somewhat. If you are having continued oil temp issues
> I'd also guess you are using the stock Van's oil cooler and firewall
> oil cooler mount.
>
> Do you loop the crankcase breather hose up the firewall before going
> down to drip on an exhaust pipe?
>
> I'm using this separator:
> http://antisplataero.com/products/the-asa-oil-separator I cannot tell
> you it works any better than other options, but I'm happy with it.
>
> Carl
>
> -----Original Message-----
> From: owner-rv10-list-server@matronics.com
> [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Flysrv10
> Sent: Friday, May 27, 2016 8:52 AM
> To: rv10-list@matronics.com
> Subject: Re: RV10-List: Oil capacity
>
> -- RV10-List message posted by: Flysrv10 flysrv10@gmail.com
>
> Carl,
>
> Which air/oil separator do you have?
>
> I seem to only keep 6 QTS without throwing it overboard. Yesterday I
> had a fuel stop in Austin area where the temps on the ramp wee 98 deg.
> The engine was heat soaked already and I had serious oil temp
limitations on climb out.
>
>
> I am wondering if installing an air/oil separator and increasing the
> the engine oil might improve things.
>
> Sent from my iPhone
>
> On May 26, 2016, at 7:59 PM, Carl Froehlich carl.froehlich@verizon.net
> wrote:
>
> -- RV10-List message posted by: Carl Froehlich
> -- carl.froehlich@verizon.net
>
> I keep the sump between 9 and 9 1/2 quarts. That seems to be about
> right for not blowing out the breather.
>
> I also have a air/oil separator on the breather line and collect that
> oil in a small container (I don't return it to the engine). Every oil
> change I have a few ounces in the container. It is not much, but a
> few ounces on the belly can make a big mess.
>
> Carl
>
> On May 26, 2016, at 9:32 PM, Flysrv10 flysrv10@gmail.com wrote:
>
> -- RV10-List message posted by: Flysrv10 flysrv10@gmail.com
>
> Guys,
>
> How many QTS of oil can you hold in your IO540 without spitting it
> overboard?
>
> Do you have a crankcase vent recovery canister (not sure what they are
> called)?
>
> Do not archive.
>
> Sent from my iPhone
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
>
Message 13
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|
| Subject: | Re: Oil capacity |
Thanks for the pics. The original cooler mounting spot just dumps the
hot air into a really dead air spot which makes me wonder just how much
differential air pressure is across the cooler. I hope to find out if I
have a problem early next year.
Linn
On 5/27/2016 5:04 PM, Carl Froehlich wrote:
> Perhaps you need to gather more data and decide if you have a problem or not.
Assuming you started off well heat soaked and that you are climbing with both
high temperature and humidity, these numbers are not that far out. Your 300
fpm climb however is way low - perhaps that was an anomaly in data collection.
>
> I climb at 130 kts IAS after the initial takeoff to promote cooling (using a
James cowl and plenum that I am very happy to have). At gross this provides perhaps
800 fpm on a hot day. I'm typically watching CHT as I've never had oil
temps above 220 or so. After 6000' or so I'll start leaning to keep EGTs up
at about what they started with. After 6000' CHTs start to come down as engine
power is going down with altitude.
>
> In cruise on a hot day I have the oil cooler door half shut to keep oil temp
above 180. CHTs are in the 340 to 360 range.
>
> If after you do your flight data analysis you still think you have an oil cooling problem, you can look at what others have done. I'm using the Airflow System 2006X cooler (same dimensions as the Van's 20006A cooler). http://www.aircraftspruce.com/catalog/eppages/xseriesOilCooler.php
>
> The attached photos show how I mounted the cooler. Not shown is a bracket on
the forward end of the cooler attaching it to the engine mount with an Adel clamp.
>
> Carl
>
> -----Original Message-----
> From: owner-rv10-list-server@matronics.com [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Flysrv10
> Sent: Friday, May 27, 2016 2:52 PM
> To: rv10-list@matronics.com
> Subject: Re: RV10-List: Oil capacity
>
>
> So my oil temp went to 223 during climb and I decreased AOA to lower the temps.
I found that I had to climb at 300'/min to bring the oil temp to 213.
>
> The CHT goes up to 425 but I can control that a little better with richer fuel.
>
> At cruise, I do really well. Around 170-180 for oil and 360 for CHT.
>
> Sent from my iPhone
>
>> On May 27, 2016, at 12:21 PM, P Reid <rv10flyer@live.com> wrote:
>>
>>
>> Oil/ air is a nice (cleaner) feature and antisplataero is first rate in his
products, but you shouldnt need to opt for this if the engine doesnt want more
than 6qts, I think maybe higher oil pressure from recycling versus releasing
it out, maybe not a real issue, but you should be able to keep temps down with
6qts. I would still consider the air/oil to keep the belly clean but not to resolve
the temps.
>>
>>
>> What (consistent) oil temps are you seeing 245F? 220? 200?, is this in climb
and cruise? I am assuming your CHTs are close to or above 400F and the oil is
having a tough time with the climb, so I decrease angle and rate by reducing
power and leaning (but that only happened 2 times in the last 400 hours) and that
helps- but what about after the climb in cruise? Temps should be 200F or lower.
>> 165-220 is the range for normal use, are you in that range?
>>
>>
>>
>>
>> From: Carl Froehlich
>> Sent: Friday, May 27, 2016 10:23 AM
>> To: rv10-list@matronics.com
>> Subject: RE: RV10-List: Oil capacity
>>
>>
>>
>>
>>
>>
>> -- RV10-List message posted by: "Carl Froehlich"
>> carl.froehlich@verizon.net
>>
>> I suspect 9 quarts would help mitigate your oil temp issue compared to
>> six quarts - somewhat. If you are having continued oil temp issues
>> I'd also guess you are using the stock Van's oil cooler and firewall
>> oil cooler mount.
>>
>> Do you loop the crankcase breather hose up the firewall before going
>> down to drip on an exhaust pipe?
>>
>> I'm using this separator:
>> http://antisplataero.com/products/the-asa-oil-separator I cannot tell
>> you it works any better than other options, but I'm happy with it.
>>
>> Carl
>>
>> -----Original Message-----
>> From: owner-rv10-list-server@matronics.com
>> [mailto:owner-rv10-list-server@matronics.com] On Behalf Of Flysrv10
>> Sent: Friday, May 27, 2016 8:52 AM
>> To: rv10-list@matronics.com
>> Subject: Re: RV10-List: Oil capacity
>>
>> -- RV10-List message posted by: Flysrv10 flysrv10@gmail.com
>>
>> Carl,
>>
>> Which air/oil separator do you have?
>>
>> I seem to only keep 6 QTS without throwing it overboard. Yesterday I
>> had a fuel stop in Austin area where the temps on the ramp wee 98 deg.
>> The engine was heat soaked already and I had serious oil temp limitations on
climb out.
>>
>>
>> I am wondering if installing an air/oil separator and increasing the
>> the engine oil might improve things.
>>
>> Sent from my iPhone
>>
>> On May 26, 2016, at 7:59 PM, Carl Froehlich carl.froehlich@verizon.net
>> wrote:
>>
>> -- RV10-List message posted by: Carl Froehlich
>> -- carl.froehlich@verizon.net
>>
>> I keep the sump between 9 and 9 1/2 quarts. That seems to be about
>> right for not blowing out the breather.
>>
>> I also have a air/oil separator on the breather line and collect that
>> oil in a small container (I don't return it to the engine). Every oil
>> change I have a few ounces in the container. It is not much, but a
>> few ounces on the belly can make a big mess.
>>
>> Carl
>>
>> On May 26, 2016, at 9:32 PM, Flysrv10 flysrv10@gmail.com wrote:
>>
>> -- RV10-List message posted by: Flysrv10 flysrv10@gmail.com
>>
>> Guys,
>>
>> How many QTS of oil can you hold in your IO540 without spitting it
>> overboard?
>>
>> Do you have a crankcase vent recovery canister (not sure what they are
>> called)?
>>
>> Do not archive.
>>
>> Sent from my iPhone
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>>
>
>
Message 14
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| Subject: | Re: Fwd: Impedance matching |
Sounds like a good plan to me.
--------
Bob Turner
RV-10 QB
Read this topic online here:
http://forums.matronics.com/viewtopic.php?p=456639#456639
Message 15
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| Subject: | Re: Oil capacity |
Unless you're low enough on oil to lose oil pressure, oil quantity does not
have an appreciable impact on oil temperature. More oil does not result in
more cooling capacity. Cooling capacity is the a function of the cylinder
fins, the oil cooler, and the surface of the engine block, accessory case,
and sump. All of those reject heat into an airstream which has a flow rate
and a delta T(emperature). Adding oil doesn't change the mass flow through
the oil cooler or the surface area which is radiating heat, nor does it
change anything about the airstream.
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