Today's Message Index:
----------------------
1. 09:55 AM - Re: CB-1002-H Governor Bracket Installation Photos...? (Matt Dralle)
2. 12:06 PM - Front Mounted Governor vs. Rear Mounted Governor... (Matt Dralle)
3. 05:10 PM - Re: Re: CB-1002-H Governor Bracket Installation Photos...? (N81JG@aol.com)
4. 07:38 PM - Re: Re: CB-1002-H Governor Bracket Installation Photos...? (wgill10@comcast.net)
5. 08:05 PM - Painting The Baffling... (Matt Dralle)
6. 10:43 PM - Re: Painting The Baffling... (N81JG@aol.com)
Message 1
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| Subject: | Re: CB-1002-H Governor Bracket Installation Photos...? |
Thank you for the info, Bill.
Looks like the McCauley governor is over 1" taller than the PCU5000. That would
explain why I've been having issues with interference with the intake. I came
up with a bracket yesterday after 5 tries that seems to work pretty well.
On the good side, I'm now getting full throw on the governor and there is no binding
whatsoever. In fact, its so free that the spring always pulls it to High
RPM setting if I don't have the drag-lock on the throttle quadrant at least
a little tight. Both of these are improvements over the Van's bracket. On the
downside, the pushrod is just barely clearing the intake's upper inboard corner.
I haven't actually mounted the intake yet, so its still too soon to tell
the full impact.
Speaking of the intake, when I push it into place, its bumping into the main mounting
screw busing on the alternator. I've got the standard 60a internally regulated
unit from Van's. I'm estimating that I'm going to have to put about
a 1/4" deep "channel" into the top right side of the fiberglass intake to get
it to fit up onto the throttle body. I wonder what impact that will have on the
designed "airflow" of the intake...? There is also a strut that came with
the alternator that goes from the front of the alternator bracket to a mounting
ear on the starter. There's no way this will fit on with the fiberglass intake
in place. I wonder if I can leave it off? I've got the Skytec Inline starter
and I already had to cut one of the unused lower mounting ears off of it
because it completely interfered with the intake.
Man, there sure are a lot of "issues" getting the front part of this IO-390 installed...
Is it really that much different in the front than the IO-360? I've
read a couple of places where the IO-390 is "a bolt in replacement for the IO-360".
Well, yeah, it bolts on, but the front mounted governor and slightly
different placement of the alternator and starter make for a lot of custom modifications.
Buyer beware.
I'll post some pictures of my governor bracket later today if I decide its really
going to work.
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com
FWF Baffling and Intake...
At 06:46 PM 9/19/2009 Saturday, you wrote:
>Hello Matt,
>
>
>
>The dimensions are indicated in the in the link below. It took three attempts
to get the correct prop governor drive ratio and you can certainly use my name
to get specs from the latest unit they shipped to me -- excellent folks to deal
with. I purchased the governor from Aero Technoligies for $1235...will provide
a scanned invoice detailing P/N & S/N, if interested. A friend with a recently
first-light RV-7A (BPE 390) purchased a governor from same source (& price)
-- no issues whatsoever using.
>
><http://www.pcu5000.com/pcu5000x_spec.pdf>http://www.pcu5000.com/pcu5000x_spec.pdf
>
>As for using stainless steel bracket...it was the strongest with the least weight
and no drawing was produced. It was trial & error method when it came to deciding
where to drill the holes -- will explain further should you wish to discuss...913-271-0988.
>
>I hope you found the info on Marc's site helpfull as he really hopes that the
info will be helpful to other 390 owners. BTW, I really love this engine...very
smooth, powerful and FAST. You will be very happy. Allen has several hours in
my plane and hopefully provided his experience.
>
>Have a great weekend,
>
>Bill
>
>
>
>
>----- Original Message -----
>From: "Matt Dralle" <dralle@matronics.com>
>To: rv7-list@matronics.com
>Sent: Saturday, September 19, 2009 12:24:29 PM GMT -06:00 US/Canada Central
>Subject: RV7-List: Re: CB-1002-H Governor Bracket Installation Photos...?
>
>
>Hi Bill,
>
>Do you have a 3D drawing of the bracket you made? Why did you choose steel instead
of aluminum?
>
>Your governor looks a lot shorter than the McCauley. Do you have a 3D drawing
of it, by chance? What is the exact model number? What's the height from the
boss to the control arm? Where'd you get it from?
>
>Thanks!
>
>Matt Dralle
>RV-8 #82880 N998RV
>http://www.mattsrv8.com
>
>
>wgill10(at)comcast.net wrote:
>> Hello Matt,
>>
>> I didn't use this bracket...made my own. If interested, Go to Marc's site (www.IO-390.com (http://www.IO-390.com)) and see what I did for the governor bracket and front baffles for the front mounted governor pad. Additionally, I could send some higher resolution pictures...just let me know. I have NEVER had any high temp issues...a very fast airplane as well.
>>
>> FAB Air box: http://www.io-390.com/IO-390.com/AFP_Servo.html (http://www.io-390.com/IO-390.com/AFP_Servo.html)
>> Prop Gov Cable/bracket: http://www.io-390.com/IO-390.com/Prop_Gov.html (http://www.io-390.com/IO-390.com/Prop_Gov.html)
>> Baffles: http://www.io-390.com/IO-390.com/Baffles_2.html (http://www.io-390.com/IO-390.com/Baffles_2.html)
>>
>> Good luck,
>>
>> Bill
>> RV-7 N151WP
>> BPE IO-390 w/AFP
>>
>>
>> ---
Message 2
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| Subject: | Front Mounted Governor vs. Rear Mounted Governor... |
I just discovered something very interesting. The gear ratio is different between
a Front mounted governor and a Rear mounted governor - .947 to 1 (front) vs.
.866 to 1 (rear). So that means that the McCauley governor that I have that
I originally purchased for use with and O-360 won't even work with the IO-390.
This page from the PCU5000 web site is very informative:
http://www.pcu5000.com/pcu5000x.htm
It details the various ratios and what not.
I also found a PDF on the dimensions of the MT governor that Van's sells:
http://www.mt-propeller.com/pdf/manuals/e-1048.pdf
This MT governor is also 1" shorter than the McCauley governor similar to the PCU5000:
http://www.pcu5000.com/pcu5000x_spec.pdf
In this picture of the PCU5000:
http://www.pcu5000.com/index_i/hmpg_pic.gif
the PCU5000 shows an auxiliary control arm that might be very helpful in pushing
the control cable out of the way of the fiberglass intake. Although, I think
that just moving the control arm in by 1" compared to the McCauley is going
to be plenty.
At any rate, I've ordered a PCU5000X number "P-520-029/A-947" for my RV-8/IO-390
combination so hopefully I can move forward on this project...
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com
Engine Baffling...
Message 3
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| Subject: | Re: CB-1002-H Governor Bracket Installation Photos...? |
Hi Matt,
I have an RV7A with an IO360, 200 hp, angle valve engine flying since Aug.
2008 with 160 hrs. We had to put slight indentations in the fiberglass
intake to clear the alternator bracket and starter. It doesn't seem to restrict
the intake. There is plenty of plenum space in that intake to convert some
of the ram air into compress air and increase the manifold pressure
slightly. I also used the 13 row oil cooler and that seems to cool the oil well
though a steep climb at less than 100 kts. will send the OT to 225 or above
in the summer here in Redding. Lowering the nose and climbing at 120-130
kts. cools it off. Cruise OT is 198 degrees F. at 60-70 degrees OAT. Winter
it's closer to 175 degrees F.
I mounted my oil cooler on the firewall and engine mount, with angle al
brackets held by Adel clamps on the engine mount behind left rear cylinder.
The firewall end is held on al. angle supported by a beefed up area of
firewall attached to the angled al. on the cockpit side. It is fed by two 2.5
"
SCAT hoses from the R and L baffling into an al. plenum mounted on top of
the cooler blowing downward. The cooler is close to horizontal. The location
is about the only place I could fit it.
John Greaves
Redding, CA
RV7A and VariEze
In a message dated 9/20/2009 9:56:23 A.M. Pacific Daylight Time,
dralle@matronics.com writes:
--> RV7-List message posted by: Matt Dralle <dralle@matronics.com>
Thank you for the info, Bill.
Looks like the McCauley governor is over 1" taller than the PCU5000. That
would explain why I've been having issues with interference with the
intake. I came up with a bracket yesterday after 5 tries that seems to work
pretty well. On the good side, I'm now getting full throw on the governor
and there is no binding whatsoever. In fact, its so free that the spring
always pulls it to High RPM setting if I don't have the drag-lock on the
throttle quadrant at least a little tight. Both of these are improvements over
the Van's bracket. On the downside, the pushrod is just barely clearing
the intake's upper inboard corner. I haven't actually mounted the intake
yet, so its still too soon to tell the full impact.
Speaking of the intake, when I push it into place, its bumping into the
main mounting screw busing on the alternator. I've got the standard 60a
internally regulated unit from Van's. I'm estimating that I'm going to have to
put about a 1/4" deep "channel" into the top right side of the fiberglass
intake to get it to fit up onto the throttle body. I wonder what impact
that will have on the designed "airflow" of the intake...? There is also a
strut that came with the alternator that goes from the front of the
alternator bracket to a mounting ear on the starter. There's no way this will
fit
on with the fiberglass intake in place. I wonder if I can leave it off?
I've got the Skytec Inline starter and I already had to cut one of the
unused lower mounting ears off of it because it completely interfered with the
intake.
Man, there sure are a lot of "issues" getting the front part of this
IO-390 installed... Is it really that much different in the front than the
IO-360? I've read a couple of places where the IO-390 is "a bolt in
replacement for the IO-360". Well, yeah, it bolts on, but the front mounted governor
and slightly different placement of the alternator and starter make for a
lot of custom modifications. Buyer beware.
I'll post some pictures of my governor bracket later today if I decide its
really going to work.
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com
FWF Baffling and Intake...
At 06:46 PM 9/19/2009 Saturday, you wrote:
>Hello Matt,
>
>
>
>The dimensions are indicated in the in the link below. It took three
attempts to get the correct prop governor drive ratio and you can certainly
use my name to get specs from the latest unit they shipped to me -- excellent
folks to deal with. I purchased the governor from Aero Technoligies for
$1235...will provide a scanned invoice detailing P/N & S/N, if interested. A
friend with a recently first-light RV-7A (BPE 390) purchased a governor
from same source (& price) -- no issues whatsoever using.
>
><http://www.pcu5000.com/pcu5000x_spec.pdf>http://www.pcu5000.com/pcu5000x_s
pec.pdf
>
>As for using stainless steel bracket...it was the strongest with the
least weight and no drawing was produced. It was trial & error method when it
came to deciding where to drill the holes -- will explain further should you
wish to discuss...913-271-0988.
>
>I hope you found the info on Marc's site helpfull as he really hopes that
the info will be helpful to other 390 owners. BTW, I really love this
engine...very smooth, powerful and FAST. You will be very happy. Allen has
several hours in my plane and hopefully provided his experience.
>
>Have a great weekend,
>
>Bill
>
>
>
>
>----- Original Message -----
>From: "Matt Dralle" <dralle@matronics.com>
>To: rv7-list@matronics.com
>Sent: Saturday, September 19, 2009 12:24:29 PM GMT -06:00 US/Canada
Central
>Subject: RV7-List: Re: CB-1002-H Governor Bracket Installation Photos...?
>
>
>Hi Bill,
>
>Do you have a 3D drawing of the bracket you made? Why did you choose
steel instead of aluminum?
>
>Your governor looks a lot shorter than the McCauley. Do you have a 3D
drawing of it, by chance? What is the exact model number? What's the height
from the boss to the control arm? Where'd you get it from?
>
>Thanks!
>
>Matt Dralle
>RV-8 #82880 N998RV
>http://www.mattsrv8.com
>
>
>wgill10(at)comcast.net wrote:
>> Hello Matt,
>>
>> I didn't use this bracket...made my own. If interested, Go to Marc's
site (www.IO-390.com (http://www.IO-390.com)) and see what I did for the
governor bracket and front baffles for the front mounted governor pad.
Additionally, I could send some higher resolution pictures...just let me know.
I
have NEVER had any high temp issues...a very fast airplane as well.
>>
>> FAB Air box: http://www.io-390.com/IO-390.com/AFP_Servo.html
(http://www.io-390.com/IO-390.com/AFP_Servo.html)
>> Prop Gov Cable/bracket:
http://www.io-390.com/IO-390.com/Prop_Gov.html (http://www.io-390.com/IO-390.com/Prop_Gov.html)
>> Baffles: http://www.io-390.com/IO-390.com/Baffles_2.html
(http://www.io-390.com/IO-390.com/Baffles_2.html)
>>
>> Good luck,
>>
>> Bill
>> RV-7 N151WP
>> BPE IO-390 w/AFP
>>
>>
>> ---
Message 4
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| Subject: | Re: CB-1002-H Governor Bracket Installation Photos...? |
Matt,
I had to make reliefs for the prop governor cable, starter ear, the PlanePo
wer alternator and the fuel supply hose to the AFP fuel servo -- no big dea
l. As for whether the front mounted governor location=C2-cause more heart
aches, just look at the rear mounted instalations and associated access. I
have very easy access to the rear of the engine and associated appliances -
- very happy with the front mounted governor location.
Bill
=C2-
----- Original Message -----
From: "Matt Dralle" <dralle@matronics.com>
Sent: Sunday, September 20, 2009 11:52:11 AM GMT -06:00 US/Canada Central
Subject: RV7-List: Re: CB-1002-H Governor Bracket Installation Photos...?
Thank you for the info, Bill.
Looks like the McCauley governor is over 1" taller than the PCU5000. =C2-
That would explain why I've been having issues with interference with the i
ntake. =C2-I came up with a bracket yesterday after 5 tries that seems to
work pretty well. =C2-On the good side, I'm now getting full throw on th
e governor and there is no binding whatsoever. =C2-In fact, its so free t
hat the spring always pulls it to High RPM setting if I don't have the drag
-lock on the throttle quadrant at least a little tight. =C2-Both of these
are improvements over the Van's bracket. =C2-On the downside, the pushro
d is just barely clearing the intake's upper inboard corner. =C2-I haven'
t actually mounted the intake yet, so its still too soon to tell the full i
mpact.
Speaking of the intake, when I push it into place, its bumping into the mai
n mounting screw busing on the alternator. =C2-I've got the standard 60a
internally regulated unit from Van's. =C2-I'm estimating that I'm going t
o have to put about a 1/4" deep "channel" into the top right side of the fi
berglass intake to get it to fit up onto the throttle body. =C2-I wonder
what impact that will have on the designed "airflow" of the intake...? =C2
-There is also a strut that came with the alternator that goes from the f
ront of the alternator bracket to a mounting ear on the starter. =C2-Ther
e's no way this will fit on with the fiberglass intake in place. =C2-I wo
nder if I can leave it off? =C2-I've got the Skytec Inline starter and I
already had to cut one of the unused lower mounting ears off of it because
it completely interfered with the intake.
Man, there sure are a lot of "issues" getting the front part of this IO-390
installed... =C2-Is it really that much different in the front than the
IO-360? =C2-I've read a couple of places where the IO-390 is "a bolt in r
eplacement for the IO-360". =C2-Well, yeah, it bolts on, but the front mo
unted governor and slightly different placement of the alternator and start
er make for a lot of custom modifications. =C2-Buyer beware.
I'll post some pictures of my governor bracket later today if I decide its
really going to work.
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com
FWF Baffling and Intake...
At 06:46 PM 9/19/2009 =C2-Saturday, you wrote:
>Hello Matt,
>
>
>
>The dimensions are indicated in the in the link below. =C2-It took three
attempts to get the correct prop governor drive ratio and you can certainl
y use my name to get specs from the latest unit they shipped to me -- excel
lent folks to deal with. I purchased the governor from Aero Technoligies fo
r $1235...will provide a scanned invoice detailing P/N & S/N, if interested
. A friend with a recently first-light RV-7A (BPE 390) purchased a governor
from same source (& price) -- no issues whatsoever using.
>
><http://www.pcu5000.com/pcu5000x_spec.pdf>http://www.pcu5000.com/pcu5000x_
spec.pdf
>
>As for using stainless steel bracket...it was the strongest with the least
weight and no drawing was produced. It was trial & error method when it ca
me to deciding where to drill the holes -- will explain further should you
wish to discuss...913-271-0988.
>
>I hope you found the info on Marc's site helpfull as he really hopes that
the info will be helpful to other 390 owners. BTW, I really love this engin
e...very smooth, powerful and FAST. You will be very happy. Allen has sever
al hours in my plane and hopefully provided his experience.
>
>Have a great weekend,
>
>Bill
>
>
>
>
>----- Original Message -----
>From: "Matt Dralle" <dralle@matronics.com>
>To: rv7-list@matronics.com
>Sent: Saturday, September 19, 2009 12:24:29 PM GMT -06:00 US/Canada Centra
l
>Subject: RV7-List: Re: CB-1002-H Governor Bracket Installation Photos...?
>
>
>Hi Bill,
>
>Do you have a 3D drawing of the bracket you made? =C2-Why did you choose
steel instead of aluminum? =C2-
>
>Your governor looks a lot shorter than the McCauley. =C2-Do you have a 3
D drawing of it, by chance? =C2-What is the exact model number? =C2-Wha
t's the height from the boss to the control arm? =C2-Where'd you get it f
rom?
>
>Thanks!
>
>Matt Dralle
>RV-8 #82880 N998RV
>http://www.mattsrv8.com
>
>
>
>wgill10(at)comcast.net wrote:
>> Hello Matt,
>> =C2-
>> I didn't use this bracket...made my own. If interested, Go to Marc's sit
e (www.IO-390.com (http://www.IO-390.com)) and see what I did for the gover
nor bracket and front baffles for the front mounted governor pad. Additiona
lly, I could send some higher resolution pictures...just let me know. I hav
e NEVER had any high temp issues...a very fast airplane as well.
>> =C2-
>> FAB Air box: =C2- http://www.io-390.com/IO-390.com/AFP_Servo.html (htt
p://www.io-390.com/IO-390.com/AFP_Servo.html)
>> Prop Gov Cable/bracket: =C2- http://www.io-390.com/IO-390.com/Prop_Gov
.html (http://www.io-390.com/IO-390.com/Prop_Gov.html)
>> Baffles: =C2- http://www.io-390.com/IO-390.com/Baffles_2.html (http://
www.io-390.com/IO-390.com/Baffles_2.html)
>> =C2-
>> Good luck,
>> =C2-
>> Bill
>> RV-7 N151WP
>> BPE IO-390 w/AFP =C2-
>> =C2-
>>
>> ---
===========
===========
MS -
===========
e -
=C2- =C2- =C2- =C2- =C2--Matt Dralle, List Admin.
===========
Message 5
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| Subject: | Painting The Baffling... |
Dear Listers,
I had been planning on black anodizing the various engine baffling pieces in keeping
with my black-n-chrome theme under the hood. But I'm noticing that the
pieces are getting pretty scratched up during all of this extra fitting that's
necessary for the IO-390. Since the pieces can't be run through a surfacer first
because of the bends, I'm rethinking how good anodizing is really going to
look.
I know we're not suppose to power coat the 2024-T3 because the curing heat required
can un-T3 the 2024, but does it really matter for the baffling? Its not
really structural, per say. And if power coating is alright, what effects will
the engine compartment heat have on the power coating? There's probably a high-temp
power coat, but it would likely require a higher curing temp, and that
get's us back to the first sentence of this paragraph... Power coating the
baffling would definitely look pretty cool.
Has anyone ever chromed their baffling? That would look super cool. Can you chrome
2024-T3? How much would that cost compared to power coating?
Am I fussing too much under the hood? ;-)
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com
FWF Baffling, Intake, and Governor...
Message 6
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| Subject: | Re: Painting The Baffling... |
Hi Matt,
My baffles are powder coated and it has held up well for 160 hrs. The
coating covers all the scratches and other marks of assembly. Black powder
coating should look even better than my light grey. I'll try to send some
pictures of the intake, oil cooler mounting and baffling since I have the
cowling off now for some alternator trouble shooting for a whine in my headsets.
John Greaves
Redding, CA
In a message dated 9/20/2009 8:06:07 P.M. Pacific Daylight Time,
dralle@matronics.com writes:
--> RV7-List message posted by: Matt Dralle <dralle@matronics.com>
Dear Listers,
I had been planning on black anodizing the various engine baffling pieces
in keeping with my black-n-chrome theme under the hood. But I'm noticing
that the pieces are getting pretty scratched up during all of this extra
fitting that's necessary for the IO-390. Since the pieces can't be run
through a surfacer first because of the bends, I'm rethinking how good anodizing
is really going to look.
I know we're not suppose to power coat the 2024-T3 because the curing heat
required can un-T3 the 2024, but does it really matter for the baffling?
Its not really structural, per say. And if power coating is alright, what
effects will the engine compartment heat have on the power coating?
There's probably a high-temp power coat, but it would likely require a higher
curing temp, and that get's us back to the first sentence of this paragraph...
Power coating the baffling would definitely look pretty cool.
Has anyone ever chromed their baffling? That would look super cool. Can
you chrome 2024-T3? How much would that cost compared to power coating?
Am I fussing too much under the hood? ;-)
Matt Dralle
RV-8 #82880 N998RV
http://www.mattsrv8.com
FWF Baffling, Intake, and Governor...
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