M20M door seal

[amekler]

I have noticed an air leak at the top rear of my door. I was thinking of replacing with an inflateable seal( had one in my M20J) but the bob fields website  says m20A through m20K.

Will it fit a M20M?

Any thoughts on Knots2U seals?

 

Alan

N9127M

 

 

 

 

 

 

 

 

 

 

 

[Danb]

43 minutes ago, amekler said:

I have noticed an air leak at the top rear of my door. I was thinking of replacing with an inflateable seal( had one in my M20J) but the bob fields website  says m20A through m20K.

Will it fit a M20M?

Any thoughts on Knots2U seals?

 

Alan

N9127M

 

 

 

 

 

 

 

 

 

 

 

Yes it will I had one on my Bravo, I have a panel controlled one from FieldS I haven’t installed still in the box, I’d consider sending if you want.

D

[amekler]

I was going to go with the basic manual one

do you have a price for yours? I assume it is the deluxe

alan

[Jetpilot86]

How much difference does it make in decibels?  I know I’m around 100-105db’s in my Bravo. 

[Danb]

2 hours ago, amekler said:

I was going to go with the basic manual one

do you have a price for yours? I assume it is the deluxe

alan

Yes deluxe 

[Fritz1]

I bought a factory door seal three or four years ago but never installed it, glued a strip of 1/4" hollow windlace material from the aviation isle of home depot to the straight bottom section of the door seal where there was a small leak and nursed the rest of the seal with rubber conditioner, installing the new seal is a tricky job as I hear, just did not muster the gumption since mine stopped leaking with minimum effort.

Since the door is a fragile contraption does the small inflation pressure of inflatable seal cause any warping of the door and excessive pressure on the door locks?? thoughts??

[amekler]

I called about the inflateable Door seal

it is not stc for m20m and would require a field approval

 

Alan

 

[PhateX1337]

I got this done at annual last month, was able to get a field approval no issue. Frustrating to have to do that, but it wasn't a big deal. It makes a big difference in sound levels as others have mentioned. Don't have measured before/after dB readings though.

[amekler]

I've been told here in NH the Portland FSDO is understaffed for field approvals but I'll make some calls.

Alan

[Jetpilot86]

On 2/14/2024 at 3:24 PM, PhateX1337 said:

I got this done at annual last month, was able to get a field approval no issue. Frustrating to have to do that, but it wasn't a big deal. It makes a big difference in sound levels as others have mentioned. Don't have measured before/after dB readings though.

Do you have an after?  I think I was 105 without, and will get to check again next week. 

[Pinecone]

What happens if you open the door without deflating the seal???

 

[slowflyin]

1 hour ago, Pinecone said:

What happens if you open the door without deflating the seal???

 

Nothing but you will notice resistance on the door handle.  It's enough to give pause.  

[Pinecone]

More worried with someone else in the right seat

 

[PhateX1337]

19 hours ago, Jetpilot86 said:

Do you have an after?  I think I was 105 without, and will get to check again next week. 

Will try to get some readings this weekend - not sure.