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Battery Kick's On and Offline

GeorgePerry

By GeorgePerry
in Modern Mooney Discussion

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GeorgePerry Veteran

GeorgePerry

Posted
Posted

Maintenance lesson learned...Went to start the Eagle, flipped on the Master and everything powered up like normal.  Then without warning, everything dropped off line and their was a loud clicking noise from behind the panel as the battery kept coming on and then dropping off line.  

Luckily the Eagle as two batteries and I switched from #2 to # 1 and every thing worked normally.  

Talked with the guys at Weber Mooney Service Center and they got me in right away.  Diagnosed the problem as a bad #2 Battery relay.  Overnighted the part from Mooney and the next day it was fixed.  The only "bad" but not unexpected news is a relay from Mooney is the better part of 1 AMU.  

Anyway, if anyone else runs into a battery that jumps on and offline with a loud clicking noise, it's probably the relay.  

StevenL757 Grand Master

StevenL757

Posted
Posted

George, my guess is you needed a Kissling 300A/24V relay, Part# 26.57.01.  I've had to replace two in the last 5 years with similar symptoms showing.  Peerless Electronics (about 4 miles from my house) usually has stock on these for about $470.  If you have a need for another, happy to help you save some money.

LANCECASPER Grand Master

LANCECASPER

Posted
Posted
11 hours ago, StevenL757 said:

George, my guess is you needed a Kissling 300A/24V relay, Part# 26.57.01.  I've had to replace two in the last 5 years with similar symptoms showing.  Peerless Electronics (about 4 miles from my house) usually has stock on these for about $470.  If you have a need for another, happy to help you save some money.

That beats double the price from Mooney - good info.

http://www.peerlesselectronics.com/store/products/26.57.01.html

Piloto Grand Master

Piloto

Posted
Posted

Wonder what makes this relay sell for $470. Obviously is not reliability. A car engine gets cranked at least 1000 times a year and never heard of a bad relay or even a bad starter. GA manufacturers should look into using automobile parts for lower costs and higher reliability. My 2000 Ford Explorer has over 200K miles and except for the left mirror control nothing else has broken. And a 300A cranking relay for american cars is typically $30.

José  

hindsight2020 Apprentice

hindsight2020

Posted
Posted
27 minutes ago, Piloto said:

Wonder what makes this relay sell for $470. Obviously is not reliability. A car engine gets cranked at least 1000 times a year and never heard of a bad relay or even a bad starter. GA manufacturers should look into using automobile parts for lower costs and higher reliability. My 2000 Ford Explorer has over 200K miles and except for the left mirror control nothing else has broken. And a 300A cranking relay for american cars is typically $30.

José  

Many parts from the 70s vintage spam cans are indeed 1960s automotive parts, with a PMA/FAA sticker on it. You could install a form-fitting relay from an automotive application and be good to go, nobody would know the difference. This is the GA version of hospital cost shifting. Nothing new under the sun. Which is why exAB is so popular.

Marauder Grand Master

Marauder

Posted
Posted
27 minutes ago, Piloto said: Wonder what makes this relay sell for $470. Obviously is not reliability. A car engine gets cranked at least 1000 times a year and never heard of a bad relay or even a bad starter. GA manufacturers should look into using automobile parts for lower costs and higher reliability. My 2000 Ford Explorer has over 200K miles and except for the left mirror control nothing else has broken. And a 300A cranking relay for american cars is typically $30.

José  

Many parts from the 70s vintage spam cans are indeed 1960s automotive parts, with a PMA/FAA sticker on it. You could install a form-fitting relay from an automotive application and be good to go, nobody would know the difference. This is the GA version of hospital cost shifting. Nothing new under the sun. Which is why exAB is so popular.

I don't remember what the parts were called, but there were a couple of "air filters" that were part of my PC autopilot. I remember ordering them every year and they were around $18 each. One year they showed up and the "FAA" label was peeling back on one. I looked under the label and it said Fram G-2. I was sick when I saw the local auto store were selling those for $1.98 at the time.

Sent from my iPad using Tapatalk

Mark89114 Experienced

Mark89114

Posted
Posted
7 hours ago, Marauder said:

Keep the sticker...........

 

 

I don't remember what the parts were called, but there were a couple of "air filters" that were part of my PC autopilot. I remember ordering them every year and they were around $18 each. One year they showed up and the "FAA" label was peeling back on one. I looked under the label and it said Fram G-2. I was sick when I saw the local auto store were selling those for $1.98 at the time.

 

 

Sent from my iPad using Tapatalk

 

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Yetti Grand Master

Yetti

Posted
Posted

Avery labels....  Laser printer...

I still have not found the part number inking machine that Mooney uses to put part numbers on stuff.  But it is fun to look through McMaster Carr.

That is a sealed relay.   You would have to bend the metal crimp to get inside it.

Betting you could find the same thing with a Bosch part number

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