Aircraft Magneto Needing Service! Bendix S4LN

[@canoe365]

My friend Orville (no, not THAT Orville) got a call from a rancher a couple hundred miles away, he had a bad magneto in his single engine plane. Against Orville's advice, the owner flew his airplane a couple hundred miles to Orville's FBO on a single magneto, over mountainous terrain, instead of waiting for Orville to come to him. After replacement of the mag, the owner took off to head home. One half mile after takeoff the other mag failed.

[@canoe365]

Thank you for the very informative video. Kinda looks like you've done this before 😂

[@HangaRatz]

Once or twice...

[@jorgevillalobos8356]

Buenas noches saludos maestro ,todo el sistema del motor es importante,pero los magnetos son el corazón del motor . Gracias por estos tutoriales me son de mucha ayuda, gracias

[@HangaRatz]

¡Muchas gracias por vernos!

[@N412BE]

FINALLY! Someone does a video on this. Thank you, thank you, thank you!

[@HangaRatz]

Glad it was helpful!

[@barnesandrewj]

What an education I just received. Thank you. I appreciate you!

[@HangaRatz]

You are so welcome

[@gawebm]

Love your videos. As a homebuilder with a Lycoming engine I really appreciate the details as well as you sharing your considerable knowledge! Thank you very much.

[@HangaRatz]

Glad you like them! Thanks for watching!

[@dudleysmith5111]

Great details and discussion. Love to see the follow-on re-assembly.

[@HangaRatz]

Probably won't do reassembly on these as there are quite a bit of intricacies involved.

[@bernardc2553]

​@@HangaRatzjust talk slow or make it a 2 part .

[@brockpowers8694]

Yes. I’d love a reassembly for the motor on my airboat.

[@bernardc2553]

Thanks enjoyed the "ride"

[@HangaRatz]

Thanks!

[@davidhofman4341]

It depends on what you call a long time. If it had a tan internal grounded coil than I would agree. I was rebuilding Bendix mags when the red externally grounded coil first became mandatory.

[@HangaRatz]

Yup. Red coils have been out there a while.

[@davechapman7735]

Thanks for showing us Sir, it is a well done great tutorial you certainly know your stuff , and cheers from NZ

[@HangaRatz]

Many thanks!

[@stephenstewart1020]

Great video thanks. I have six cylinders mags on air boat.whats the best way to maintain them keep them healthy

[@HangaRatz]

Take them apart every 10 years or so and make sure the bearings are in good shape. Normal aging issues are grease, coil fail, and condenser fail. The coil is essentially plastic which cracks and the condensers leak. Thanks for watching!

[@StuartHutchison]

Interesting watch, but as you correctly caution, the Service Manuals are essential. Disassembly is easy, it's shimming new bearings and e-gap timing that will bring amateurs unstuck.

[@HangaRatz]

That's why I only have disassembly videos on these! Thanks for watching!

[@FoxDB1]

Could you add a reassembly video? Especially the impulse coupling!

[@HangaRatz]

I prefer not to do a magneto reassembly video as a current manual is required. I could probably do a spring rewind though. Next batch in! Thanks for watching!

[@mickmann6779]

I second the motion for a reassembly vid.

[@triplanelover]

I should have had you do my mags; spent alot of money and had to return them both no good engine ran horrible after 4 hours on expensive overhaul

[@HangaRatz]

Yipes! Magnetos are very robust and reliable if worked on properly. Thanks for watching!

[@AlyssaM_InfoSec]

Just found this today, I love pretty much all the videos I watch from your channel, but this is probably the best magneto breakdown I've seen bar none. Curious, as an owner of an O-360-A4A equipped plane with Slick Mags, how much different are these procedures on a Slick Mag? (Also if anyone happens to know of any videos of equal quality to this one that goes through the Slick Mags that would be ideal!) **EDIT: To be clear, I've got no crazy intentions of trying to do this myself, just trying to be as educated as I can for when I do have chats with my shop.

[@HangaRatz]

Here is one I did a while ago. Maybe its time for a fresh version... kzbin.info/www/bejne/r4bHm5xnjrNla9k Thanks for watching!

[@AlyssaM_InfoSec]

@@HangaRatz oh awesome, thank you!! Truly love how much I'm able to learn from your videos. I'm a new aircraft owner (bought a PA-28-180 in August) so learning as much of the mechanical side is important to me to being a safe pilot and a smart owner :)

[@JFirn86Q]

Amazing how expensive that device is.

[@WolfPilot]

This is awesome! I have taken apart the Slick mags on 44T a few times. Once in the back of my Excursion at F46 after Steve and I installed a mag and it was misfiring horribly. It turns out that our timing job just sucked.

[@HangaRatz]

Yup. Just take your time and have the pubs available.

[@michaelpoarch6469]

How can I get this service done to a magneto like this one and about what does service like this usually cost please. I have a airboat with this same magnetos and it’s not getting any fire to plugs.

[@HangaRatz]

You can send them to us!

[@cpslawrence]

Hello Bill. Thanks so much for the video. I have two mags that are in need of servicing. They came out of a 1941 Aeronca 65-TAC. Cont. A65-8. Can you recommend a quality certified service facility that doesn't charge an arm and a leg? Thanks again.

[@HangaRatz]

Depends! What make/model are they?

[@cpslawrence]

@@HangaRatz I am traveling at the moment, but from memory, I they are the Bendix S4LN-21 model.

[@HangaRatz]

@@cpslawrence Email at the email in the description. We can help you out!

[@n8lbv]

Very cool to watch! I'm a newbie pilot in training and get the pleasure of also getting to work on them with a friend a bit. Which loctite product or product type is used on the Slick? I use blue/242 all the time on RC helicopters, and red is very serious permanent stuff which gets used in some of the higher vibration or higher speed/stress items.

[@jimcaufman2328]

The recommended Loctite is in the slick manual.

[@HangaRatz]

I pointedly do not reference various sealants, torques, specs, etc. as I don't want folks using KZbin for return to service authority. Yeah, those folks are out there... Thanks for watching!

[@n8lbv]

@@jimcaufman2328 Yep, some truth/good intent in the reply and some of it is what I suspect to be trade secrets, you just don't go and tell everyone out there what took you years to learn. I'm in business and I get that. I looked in the AIM first of course just in case it would mention anything about thread lock. I'm brand new at this, it's not my thing other than for fun/learning and enjoyment and I'm always under good supervision when I "do" anything. and If I'm not I know at my experience level to seek it first before "doing" anything.

[@paulkearns8838]

Thank goodness the FAA is making sure electronic ignition doesn’t make it to certified aircraft.. imagine how hazardous that could be! 🙄

[@HangaRatz]

Excellent point. Fuel injection (of a current design) would be handy also...

[@paulkearns8838]

@@HangaRatz Throttle body injectors anyone? Bueller? Bueller?

[@sblack48]

There are FAA certified electronic ignitions available now.

[@Erik-gg2vb]

Does the Magnet have to be remagnetized?

[@HangaRatz]

It doesn't have to be, but it can be if it needs it. Thanks for watching!

[@donaldconnolly220]

MY DAD. AND MOM WORKED AT LOCKHEED.......MOM BUILT. PV1VENTURA....AND P38 S..... DAD. SAID A PRAYER. HE DID BLACKBIRDS...AND MANY. OTHERS......HIS PRAYER. WENT. LIKE. THIS...... GOD. PLEASE. DONT LET THIS PLANE. FALL. FROM THE SKY. FROM. SOMETHING. I DID. HE WAS ZERO DEFECTS FOR HIS ENTIRE CARREER.....HE DIED WORKING FOR LOCKHEED.....

[@HangaRatz]

Cool stuff. Thanks for watching!