Carb heat bearing

[phxcobraz]

Got on the list at Lasar for a new intake duct today as the old one is getting pretty rough. 
In looking it over it’s clear the bearing for the carb heat flapper is worn out and flopping around. Does anyone have a source for an equal bearing to use? When I called Lasar today they do not offer the carb heat rebuild kit any longer, nor the bearing. 
Looks like McFarlane doesn’t offer one either. 
The flapper itself seems in pretty good condition and the heat on/off work but there is definitely some unfiltered air getting in. 

[N201MKTurbo]

Get to know somebody with a machine shop. Or make a drawing and send it to xometry .

[Hank]

Mine actually broke off a few years ago (2015? 2016?). My IA couldn't find one, but was able to welding the end back on and file it to fit. It's been working ever since, and very well with a new cable, but it's not pretty to look at.

Good luck! Let us know what you do and how it works. 

[47U]

5 hours ago, phxcobraz said:

The flapper itself seems in pretty good condition and the heat on/off work but there is definitely some unfiltered air getting in. 

Your’s is a ‘62C, with the needle bearings on the carb heat flapper?  (Picture saved off a previous MooneySpace post, I think.)  You can probably find a serviceable air box from one of the salvage yards, or, working with your A&P, repairs to your air box would be possible as previous posters suggest.

I‘m thinking you have a ‘62C because, (not to alarm) but some years ago I heard first-hand from the owner of a ‘62C that he suddenly experienced a change in engine smoothness.  The proverbial ‘auto-rough’ over open water, as it were.  He was on the (San Francisco) Bay area tour, at night, with his wife onboard.  The mechanic found one of the needle bearings from the carb heat flapper bearing welded to the center electrode of one of the spark plugs.  My ‘63C doesn’t have any bearings, just the flapper door shaft in a plain carrier.  If it gets too far worn, it will start wearing on the intake duct.  I made a little sheet metal patch to close up the gap.

LASAR still had the Mooney kit available 15 years ago when I rebuilt my air intake.  It included a new flapper door, shaft, shaft (plain) bearings, and a new hot air dump valve.

The kit isn’t available at the factory?  I think it was about .8 amu 15 years ago… surely they could make a profit on the kit with today’s prices.  

[Rwsavory]

Maxwell can repair it. They recently did mine. 

[phxcobraz]

10 hours ago, 47U said:

Your’s is a ‘62C, with the needle bearings on the carb heat flapper?  (Picture saved off a previous MooneySpace post, I think.)  You can probably find a serviceable air box from one of the salvage yards, or, working with your A&P, repairs to your air box would be possible as previous posters suggest.

I‘m thinking you have a ‘62C because, (not to alarm) but some years ago I heard first-hand from the owner of a ‘62C that he suddenly experienced a change in engine smoothness.  The proverbial ‘auto-rough’ over open water, as it were.  He was on the (San Francisco) Bay area tour, at night, with his wife onboard.  The mechanic found one of the needle bearings from the carb heat flapper bearing welded to the center electrode of one of the spark plugs.  My ‘63C doesn’t have any bearings, just the flapper door shaft in a plain carrier.  If it gets too far worn, it will start wearing on the intake duct.  I made a little sheet metal patch to close up the gap.

LASAR still had the Mooney kit available 15 years ago when I rebuilt my air intake.  It included a new flapper door, shaft, shaft (plain) bearings, and a new hot air dump valve.

The kit isn’t available at the factory?  I think it was about .8 amu 15 years ago… surely they could make a profit on the kit with today’s prices.  

It’s a 63C. 
Seems like it might be easiest to just send off to get repaired. 

[cliffy]

How about a small piece of 4130 sheet steel and a small steel bushing and a little brazing flux and rod.

Drill through the hole and be done with it.   2 hours tops. 

Seems like that would repair the problem  eezy peezy.

But maybe their aren't any real A&Ps anymore  :-) :-) ;-)

[phxcobraz]

1 hour ago, cliffy said:

How about a small piece of 4130 sheet steel and a small steel bushing and a little brazing flux and rod.

Drill through the hole and be done with it.   2 hours tops. 

Seems like that would repair the problem  eezy peezy.

But maybe their aren't any real A&Ps anymore  :-) :-) ;-)

Probably, outside my wheelhouse but I bet my A&P can figure it out. Was hoping a rebuild kit like Lasar used to sell or bushing already available was an option and we could just swap it out.

May have luck finding a salvage air box in good shape also, been looking around a bit on that.