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What condition would create a necessity for an oversized seal bore?

I don’t know why just watching that makes me cringe. Lycoming abuse!

1 week ago

Airworx LLC

Our phone lines are down and will be for a few days. Looks like a control burn has disabled all of the landlines in our area. Please send me a FB message or email me at You can also message only me at 251-212-0114. Sorry for any inconvenience. ... See MoreSee Less

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Chris, finally had a long trip to Florence S.C. from Delaware. Ran perfect. 10 gallons an hour like it was clockwork.

Airworx LLC can now bring those baby Franklin engines back to a true OH condition. The small 4 cylinder 4ac-176 and 199 engines had no cylinders left in NOS condition and were all worn completely out. We have worked with a vendor and can now chrome the cylinders back to standard bore. During the overhaul process, they will have the cast iron guides replaced with custom bronze valve guides as well. This should make the cylinders last beyond TBO which was always the weak link. Pictures for reference prior to being worked.Image attachment

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Thank you for supporting the 4ACs!

What are we doing at Airworx on a wet Monday? Lycoming IO-360 experimental engine and an O-300D for a Cessna 172. Quality aircraft engines on a daily basis.Image attachment

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A couple more good looking engines! If things go as planned, you'll have another O-300 in your shop this year. Email sent.

Briefly, what kinds of changes were made to the Lycoming? Blue print, port and polish, higher compression piston?

They look good!!

wow!!! looking good!!

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I wasn’t sure if that was legal for certified units? I’m sure it’s fine for experimental applications.

An excellent service!

10% increase is allowed per FARs from what i understand.

Whitney Coyle

Derrick Scott

Another question, if the engine has flowed cylinders, will it run cooler due to efficiency? If so how much?

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When you want more power from your engine, we recommend ported, polished, and flo benched cylinders at overhaul. This provides an increase of about 10 percent power.Image attachmentImage attachment

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When its time for new cylinders on my 0-360 sure want this treatment!!...

Much better than helicopter pistons. 🤗😪

O man you speak my language buddy. Love that mod. Try to have this done on everything I own. Cheap ponies. Cheaper then the exhaust kit.

Can this be done to Franklin cylinders too?

Can’t wait to bolt that engine up!!! Thanks for all the communication!!

Is port/polish available on Franklin 180hp?

Roughly what is the charge per cylinder for Lycomings?

You guys built a flow bench?

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Carlos Saldaña here is the shop I was telling you about

Some of the items in our webpage.

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Went to the web page, can't locate where to click on.

Airworx will be starting a marketplace with used serviceable items for sale. Things such as starters, generators, spark plugs, wire harness, bell 47 parts, Franklin,Lycoming, and Continental parts. Parts will be used in as removed but serviceable condition. attachment

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Any REJ38 yet????

Great idea!

Both lycoming and Franklin pieces?

Will said parts be listed here or somewhere else?

Hmm! Can you tell what we are working on this week?

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I think... I see a BABY FRANKLIN in there too! Good Good! February is coming quickly! 😀

Magic. Your going to turn repairable ( G ) parts into serviceable ( Y ) parts.


Looks like you are just getting “cranky”

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That is grinding a blank to "stock" specifications not a regrinding correct? It looks like a raw casting...

Chris, you're awesome. I'm so grateful that you have devoted your craftsmanship to these amazing engines.

Wow that’s amazing. Some serious math in that machine lol

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That master lobe looks wore

What kind of threatment do you apply to continental tappet body after regrind/resurface and camshaft?

2 months ago

Airworx LLC

All of us at Airworx LLC would like to wish our past, present, and future customers a very Merry Christmas and a Happy New Year.

We will be closed from December the 24 th through January 3rd. We will be ready to start the new year off as busy as ever thanks to our great customers word of mouth. Stay tuned for exciting new processes in the new year.
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Merry Christmas to you guys!

Can I ship you a couple jugs while you’re closed or should I wait? Thx

Crankshaft overhauled in-house at Airworx. Plated flange and baked to eliminate nitrogen embrittlement.

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I have a question as to the 'baking' after plating, I believe it is to be done within a certain time frame. Can you overdo the heat treatment. Or is there a specific time to keep to. A crankshaft is a critical component, do you have any other checks and balances in place to

My days in turbofan & turbojet arena, dwg revisions to older dwgs on certain parts & plating always had the bake-off note added. It was xxx temp for y # of hrs typically....

How long is the máximum between cad plating and baked in the oven? Is there any time restriction? Or you can put it after days. Thanks from spain


Fantastic work, looks awesome!

Sorry, to 'Know' its integrity after the plating process. Thanks again

Do you do all brands? Got a base pricing schedule ?


Nice plating!

Hi Airworx, Thanks for this, looks fab!!

What’s the highest rpm this crank will see ?

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