Let the EDM900 install begin!!

[Guitarmaster]

Here we go!!

I removed about 8lb of stuff from Riley today. The "demo" part of the project is done!

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[Stetson20]

Good luck! Keep posting updates and pics, please!

[gsxrpilot]

I'm following this closely. I'll likely be installing an EDM-900 shortly myself.

[Pritch]

Makes installing my EDM730 next week look like a piece of cake.  Have fun and enjoy, half the fun of owning a Mooney is working on them.

Pritch

[Ratherbflying]

GM, while you have the circuit breaker panel pulled apart, reach back there and pull the avionics bus relay out and inspect the pins and socket. The relay is that gray cube that you can see in the sixth photo down. Clean off any carbon with a scotchbrite cloth and grease the pins before you reinstall.

You will love your EDM900. Best thing I ever did for the aircraft.

[StevenL757]

And away we go Matt.  :-)

Excellent choice...and as others noted, you certainly won't regret it.  Your engine will thank you.  

[Guitarmaster]

GM, while you have the circuit breaker panel pulled apart, reach back there and pull the avionics bus relay out and inspect the pins and socket. The relay is that gray cube that you can see in the sixth photo down. Clean off any carbon with a scotchbrite cloth and grease the pins before you reinstall.

You will love your EDM900. Best thing I ever did for the aircraft.

Great idea! Thanks!

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[Marauder]

Another thing Matt, if any of those breakers are ancient history, you might want to consider replacing them. Good time while they are all easy to access.

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[TWinter]

Lots of carnage happening on these olds birds lately. Glad to see everyone keeping them flying and upgrading. You will love it.

 

-Tom

[Marauder]

2 hours ago, Ratherbflying said:

GM, while you have the circuit breaker panel pulled apart, reach back there and pull the avionics bus relay out and inspect the pins and socket. The relay is that gray cube that you can see in the sixth photo down. Clean off any carbon with a scotchbrite cloth and grease the pins before you reinstall.

You will love your EDM900. Best thing I ever did for the aircraft.

Matt -- Rather triggered another thought. If you have the machine gun landing light (button on the throttle), the relay for this circuit is buried in the back behind the breaker panel up on the side wall. Mine failed a year ago and was quite a pain to get replaced. They no longer make the exact relay and I have the details on the P/N for an acceptable replacement.

[Marauder]

1 minute ago, TWinter said:

Lots of carnage happening on these olds birds lately. Glad to see everyone keeping them flying and upgrading. You will love it.

 

-Tom

And I am even more happy it is YOU guys spending money and not me!

[Guitarmaster]

7 hours ago, Marauder said:

Matt -- Rather triggered another thought. If you have the machine gun landing light (button on the throttle), the relay for this circuit is buried in the back behind the breaker panel up on the side wall. Mine failed a year ago and was quite a pain to get replaced. They no longer make the exact relay and I have the details on the P/N for an acceptable replacement.

I did think about replacing that.  What is the P/N?

[Guitarmaster]

7 hours ago, Marauder said:

And I am even more happy it is YOU guys spending money and not me!

If you would like to spend your money on my plane, I won't complain!!  

[Guitarmaster]

Small update:

I had to order about $200 worth of hoses and fittings so that brings the total to ~$2900.  

Tomorrow will be pulling wires through the firewall, EGT and CHT probe install.  Probably install the BI805 valve for the ACCUTRAK at the same time.

Lots of work, but so far, not difficult.  Pics to come.  

[Stetson20]

Hat tip to ya, Matt. Like I said, project planes aren't my thing. Check your email. I may have found a better fit for me. 

[DXB]

I generally like my EDM900 a lot - had it about a year. Of course I was cursing a tad when my RPM sensor went bad in the middle of my Oshkosh pilgrimage.  And the MP transducer is too sensitive, so it bounces a bit in flight - firmware upgrade didn't fix it.  And I'm still waiting to get the right fittings to attach the snubber that JPI sent me for this problem. But overall it's really nice.  

[Guitarmaster]

Today found me installing probes and pulling wires.  A label maker is nice to have as the mass of wires can get overwhelming.  JPI makes it pretty easy by labeling most wires; however, most of said labels end up in the avionics bay so I added labels forward of the firewall.  Should make connecting stuff up much quicker and more accurate.

Since OAT and Oil Temp are options, I had to add them to the main connector.

At the same time, I got the BI805 installed for the ACCUTRAK.  Tomorrow I will be plumbing and connecting probes.

Taking apart the "P1" connector.

Beginning of the wire pull.

Drilling for EGT probes

CHT

JPI Labeling

OAT and OIL Temp added to plug

Edited September 8, 2016 by Guitarmaster

[StevenL757]

Loving it...you're nearly there.  :-)

[Raptor05121]

Awesome.

What determines the distance from the cylinder head when it comes to EGT probes?

[carusoam]

Standards used by the engine company...

too close to the exh valve melts the probe.

Too far away dulls the response.

PP thoughts, not a mechanic.

Best regards,

-a-

[Mark89114]

I noticed a mark where you are drilling for the EGT probe.  I hope you didn't use pencil.  Somewhere I was told or read that you shouldn't use pencil on exhaust manifolds as their is some type of interaction between the pencil lead and the metal and will lead to cracks.  If anybody can verify this or tell me old wives tales please correct me. 

[carusoam]

Not heard of that one...   

1) Pencil lead is mixture of carbon black and clay.  Carbon is probably not the issue.  

2) potential of scratching the pipe surface may not be very good regarding stress multipliers...

3) That part of the pipe gets so hot there isn't much stress left on the red hot surface....

The installation procedure for the device probably has this information.  JPI has their manuals online.  See if they have the install details.

PP only, my pipes were drilled at the factory.

Best regards,

-a-

[Guitarmaster]

49 minutes ago, Raptor05121 said:

Awesome.

What determines the distance from the cylinder head when it comes to EGT probes?

JPI says 2" to 4" from the flange.  The factory probe was 4", so I followed suit.

[Guitarmaster]

20 minutes ago, Mark89114 said:

I noticed a mark where you are drilling for the EGT probe.  I hope you didn't use pencil.  Somewhere I was told or read that you shouldn't use pencil on exhaust manifolds as their is some type of interaction between the pencil lead and the metal and will lead to cracks.  If anybody can verify this or tell me old wives tales please correct me. 

Have never heard that.  Anyway, it's a grease marking "pencil."

[Mark89114]

Now you made me do some work and real research......

http://www.avweb.com/news/maint/183932-1.html

 

Under maintenance practice they mention the pencil and it's affect.