Today's Message Index:
----------------------
1. 06:55 PM - Cam Oil galley on IO-540 (Carl E. Kohn)
2. 07:23 PM - Re: Cam Oil galley on IO-540 (Archie)
3. 07:55 PM - Re: Electric (solenoid) fuel valve (J. Mcculley)
4. 09:34 PM - [Please Read] Matronics Email Server Upgrade Complete! (Matt Dralle)
Message 1
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| Subject: | Cam Oil galley on IO-540 |
--> Engines-List message posted by: "Carl E. Kohn" <ckohn@cek.com>
Engines-List subscribers:
I am currently rebuilding a Lycoming IO-540(balancing, porting, cool air
induction, electronic ignition, and 10:1 pistons). I am planning to
install this engine with a facility to pre-oil the engine before
startup, but have been lead to believe that this is only a small part of
the solution. To save the cam and lifters, it is essential to build in
an oil galley to supply pre-start oil to the cam lobes.
I believe that we have determined how to do this, but am interested in
some experience with this. I would like to hear from anyone with plans
for a cam oiler galley or with experience in using one.
Regards,
Carl
--
Carl E. Khn
CEK Associates Inc.
(647)299-1508
(416)231-8764 fax
Message 2
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| Subject: | Re: Cam Oil galley on IO-540 |
--> Engines-List message posted by: "Archie" <archie97@earthlink.net>
Consider a roller setup from Superior, and forget a band-aid correction.
It is a quantum leap forward. Lobe wear, and concern, will be history.
We have been using these in race cars for over 50 years, incorporating
spring pressures of 900-1000 lbs pressure. (valves open).
Lycoming and Continental will have to follow suit.
I will not delve into porting, too many horror stories by "pretty" work
performed by persons that really do not know the manifestations of
pulsed, heated, velocities for various applications.
Archie
----- Original Message -----
From: "Carl E. Kohn" <ckohn@cek.com>
Subject: Engines-List: Cam Oil galley on IO-540
> --> Engines-List message posted by: "Carl E. Kohn" <ckohn@cek.com>
>
> Engines-List subscribers:
>
> I am currently rebuilding a Lycoming IO-540(balancing, porting, cool air
> induction, electronic ignition, and 10:1 pistons). I am planning to
> install this engine with a facility to pre-oil the engine before
> startup, but have been lead to believe that this is only a small part of
> the solution. To save the cam and lifters, it is essential to build in
> an oil galley to supply pre-start oil to the cam lobes.
>
> I believe that we have determined how to do this, but am interested in
> some experience with this. I would like to hear from anyone with plans
> for a cam oiler galley or with experience in using one.
>
> Regards,
>
> Carl
>
> --
>
> Carl E. Khn
> CEK Associates Inc.
> (647)299-1508
> (416)231-8764 fax
>
>
>
>
>
>
>
Message 3
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| Subject: | Re: Electric (solenoid) fuel valve |
--> Engines-List message posted by: "J. Mcculley" <mcculleyja@starpower.net>
Thanks to the several people who responded to my search for the subject
fuel valve. For those who were concerned about the safety aspects, you
are absolutely correct and I should have explained that I am not going
to use it in the manner you are concerned about. It will be used only
to recirculate fuel for pump cooling purposes (prevent vapor lock) and
only during prolonged idle operation on the ground in very hot
conditions. It will be electrically actuated open to do that and remain
in it's spring loaded closed (deactivated) condition during flight.
Also, an in-line orifice will limit flow (even if the valve should fail
to hold closed) to a value that is easily less than the engine driven
and/or the electric boost pump can handle while supplying the engine
flow at full power. My first choice was a manually operated valve for
this purpose (just as I use for all the rest of the fuel system) but
location became a problem.
Jim McCulley
>
> Time: 04:34:50 AM PST US
> From: "Hans Teijgeler" <hans@jodel.com>
> Subject: Re: Engines-List: Electric(solenoid) operated fuel valve
> (not processed: message from valid local sender)
>
> --> Engines-List message posted by: "Hans Teijgeler" <hans@jodel.com>
>
> Jim,
>
> If this is meant to be your main valve, then you've just made your aircraft
> electrically dependant! Sure, it can be done, but this is one big can of
> worms that you are opening here. Why not stick to a mechanical valve that is
> within reasonable reach? Keep it simple! One less item to worry about.
>
> Hans
>
> -----Original Message-----
> From: "J. Mcculley" <mcculleyja@starpower.net>
> Subject: Engines-List: Electric(solenoid) operated fuel valve
>>--> Engines-List message posted by: "J. Mcculley"
>><mcculleyja@starpower.net>
>>Can anyone recommend a source for a 12 volt solenoid-operated fuel
>>valve. It needs to be a normally closed (spring loaded?) valve with 12
>>volt DC power required to hold in the open position. Preferably set up
>>for AN fittings or at least female pipe threads of no less than 1/4
>>inch
>>ID. Thanks for any help.
> Time: 06:32:01 AM PST US
> From: "James R. Cunningham" <jrccea@bellsouth.net>
> Subject: Re: Engines-List: Electric(solenoid) operated fuel valve
> --> Engines-List message posted by: "James R. Cunningham" <jrccea@bellsouth.net>
>
> Jim, with a normally closed fuel valve that is held open by electric power, what
> happens to your fuel supply if you lose electrical power in flight?
> All the best,
> JimC
Message 4
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| Subject: | [Please Read] Matronics Email Server Upgrade Complete! |
--> Engines-List message posted by: Matt Dralle <dralle@matronics.com>
9:24pm PDT 4/17/2005
Dear Listers,
The upgrade of the Matronics Email Server can be considered complete at
this time. All known issues related to the upgrade process have been
resolved and email services are running normal. The Nightly Digest
processing has not yet been tested and will wait for tonight's update.
If you encounter any odd behavior with respect to the Matronics Email
Server over the next few days, please contact me via email at
dralle@matronics.com or if that fails try dralle@speakeasy.net.
Thanks to everyone for being patient through this arduous process of a
major system upgrade!
Matt Dralle
Email List Administrator
At 12:37 PM 4/16/2005 Saturday, Matt Dralle wrote:
>Dear Listers,
>
>I will be upgrading the Matronics Email Server this weekend. This
>includes some hardware improvements - more memory, faster, more capable
>processors - as well as a complete operating system upgrade from
>scratch. I hope to have both the old system and the new system running at
>the same time to minimize the actual impact of the upgrade.
>
>Hopefully there will be little actual downtime during the transition, but
>a few posts may get lost in the shuffle. If you don't see your post show
>up on the List in the normal amount of time (plus a little bit), then
>please just try posting it again.
>
>Upgrading the Matronics Email Server operating system (from Redhat Linux
>7.2 to Redhat Linux WS 4) is a sizeable undertaking and requires a great
>deal of work to port all of the utilities, programs, and scripts over to
>the new system. As I've already mentioned, both the old and new systems
>will be on line at the same time, so interruption should be held to an
>absolute minimal. You might see a couple of odd test messages during the
>cut-over or other odd messages; please just ignore them.
>
>I have setup a new System Status Web Page that I will use to update List
>Members on the current status of the email and web systems. Please refer
>to it as often as you like:
>
> http://www.matronics.com/SystemStatus/
>
>
>Thank you for your continued support of the List Services at
>Matronics! Its your yearly Contributions that make these major upgrades
>possible!
>
>Best regards,
>
>Matt Dralle
>Matronics Email List Administrator
Matt G Dralle | Matronics | PO Box 347 | Livermore | CA | 94551
925-606-1001 V | 925-606-6281 F | dralle@matronics.com Email
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