Top Prop IO-360

[kaba]

New top prop install on Lyncoming IO-360 A3B6

Need new or change to governor or

Just change original prop.

 

 

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[EricJ]

My IO-360-A3B6D has a top prop and the normal governor.   I changed governor a while back due to a failure and we were only looking in the TCDS to verify things.   I don't recall that the propeller STC mentions the governor, but that could be double checked pretty easily.

[carusoam]

Are we on a CB budget for gov portion of the project?

What gov do you have?

How many years/hours on it?

Many have bought a recently designed governor….  PCU5000

A simple search should find the name…

PP thoughts only, not a mechanic…

Best regards,

-a-

[kaba]

Thanks …
We will order the PCU5000
Good info


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[jetdriven]

Check if the PCU5000 is approved for the J model. Not sure it is. 

[EricJ]

9 hours ago, kaba said:

Thanks …
We will order the PCU5000
Good info


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It isn't approved for the J model, unfortunately.

[carusoam]

22 hours ago, kaba said:

Thanks …
We will order the PCU5000
Good info


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Looks like the PCU5000 is a no go for the M20J…

Sorry for the distraction…

Best regards,

-a-

[kaba]

We, install Saturday….will update on performance
Thanks……


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[kaba]

Clarify
Install prop….keep existing governor


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[kaba]

Clarify
Install prop….keep existing governor


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[kaba]

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[philiplane]

The scimitar props are a bit quieter, and smoother, than the standard prop. There really is no performance change on engines of less than 250 HP though. Sticking with the two blade was a good idea. Three blades slow down the J. Have the dynamic balance done too. I check my prop balance annually, although I own a balancer. Every 300-500 hours is a good idea no matter what. 

[Eight8Victor]

Nice-looking MSE. I have the top prop on my A1A and am pleased. 
I see 4JJ was formerly owned by the PBC sheriffs office. I wonder in what capacity did they use a Mooney?

[bmcconnaha]

I have it on my J.  It was one of two props approved for the the 390.  Mine did require a governor change, but I didn’t have the a3b6.  I had the a3b6d.  I like the prop so far, but I wish the MT was approved.  I do like the fact there is no RPM restriction anymore, but I find it’s smoothest at 2500-2600rpm.  It’s dynamic balanced there.  

[jaylw314]

I have to admit, going from the Macauley to the Hartzell Top Prop on my J, it seemed like vibrations were if anything a little more noticeable.  Not horribly so, but not necessarily better.  Granted, I had the Macauley dynamically balanced beforehand.  When I got the Hartzell dynamically balanced they said it was already near perfect and only required the smallest weight they could find, yet it still felt a little worse.

[amillet]

I experienced the same as @bmcconnaha and @jaylw314.  Top prop is smoother at 2600 than 2500 where I always ran the McCauley.

[A64Pilot]

Be careful to not over grease the Hartzell, the bigger props you take out the opposite grease zirc and pump until clem grease comes out, do NOT do this with the smaller props.

I assume this prop is greased. my three blade Scimitar was.

Edited February 21, 2022 by A64Pilot

[kaba]

Correct.prop came greased.
How do you know how to add annually?


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[kaba]

Label


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[Tx_Aggie]

Anyone have an updated price on the 2-blade top prop? 

[DCarlton]

4 minutes ago, Tx_Aggie said:

Anyone have an updated price on the 2-blade top prop? 

I believe I have a price In my notes but it was with a trade in.  Probably doesn’t help.  

[Tx_Aggie]

35 minutes ago, DCarlton said:

I believe I have a price In my notes but it was with a trade in.  Probably doesn’t help.  

Like trading in your McCauley or trading in an old top prop?

Edited November 11, 2023 by Tx_Aggie

[0TreeLemur]

We bought a new Top Prop for our C in 2020 after a shop condemned the blades on our original prop.  It looked great new but the paint would not stay on the primer at the leading edge near the tips.  I paid twice to have the prop removed, taken to the shop that sold it to us and repainted.  I called Hartzell and they did not care.  I've seen other Top Props with the same issue.  All I'm saying is that Hartzell has had QA/QC issues with paint not sticking well to primer in the past and if it happens, you are on your own.  I will not buy anything from Hartzell in the future.

The Top Prop was a perhaps little bit quieter but a Mooney C is a noisy airplane no matter which prop is installed.  Performance wise there was no difference that I could discern. 

[DCarlton]

10 hours ago, Tx_Aggie said:

Like trading in your McCauley or trading in an old top prop?

Trading in the McCauley.  Ottosen Prop offered to take it in trade.  Decided not to do it.  

[Ragsf15e]

I used their online quote request last year and got a quick email from an actual person.  2 blade was around $12k.  Year and half ago.