Stopping CO ingress

[danny_galaga]

I can't remember where the hell I put my thread about stopping co ingress in my plane. But here's the latest. I put light open cell weather strip around the door edges. The doors on the Bushcat are not a brilliant fit so the gap varies a lot. Using 6mm open cell allows for a high tolerance. 

 

And it seems to have worked. The amount I can smell is a LOT less. Nev pointed out a lot of planes pull fumes up via the opening near the tail wheel. That would be my next point of attack. But the doors were a lot easier to do 😄

[Marty_d]

From Bunnings Aerospace?

[facthunter]

Any opening  anywhere will do for fumes. The pressure inside is always below the outside in an unpressurised Plane when it's flying.  With some effort, cost, wt and drag the exhaust May be extended enough to reduce it significantly. Also seal firewall and doors and have Cockpit  air vents open. Tired motors will ooze fumes. There's crankcases that have to  vent.. Nev

[danny_galaga]

1 hour ago, Marty_d said:

From Bunnings Aerospace?

Yes. Don’t have the packet here, but i THINK it’s this one. One roll for each door

 

https://www.bunnings.com.au/moroday-6-x-19mm-x-5m-white-econo-weatherseal-tape_p4061865

[skippydiesel]

" I put light open cell weather strip around the door edges"

 

If its the stuff from Bunnings Aerospace, you will be lucky to get much more than a season out of it.

 

Next time get closed cell - far more durable & won't hold moisture and retains it shape better.

 

Lots of suppliers but if close to a "Clark Rubber" they usually have a very good (but pricey) selection. You will need to know the width, depth & how long (they sell by the m).

😈

[BrendAn]

4 minutes ago, skippydiesel said:

" I put light open cell weather strip around the door edges"

 

If its the stuff from Bunnings Aerospace, you will be lucky to get much more than a season out of it.

 

Next time get closed cell - far more durable & won't hold moisture and retains it shape better.

 

Lots of suppliers but if close to a "Clark Rubber" they usually have a very good (but pricey) selection. You will need to know the width, depth & how long (they sell by the m).

😈

bunnings have expensive quality seal as well. ask for the submarine door seal or the space shuttle door seal for higher temp applications.

[danny_galaga]

4 hours ago, skippydiesel said:

" I put light open cell weather strip around the door edges"

 

If its the stuff from Bunnings Aerospace, you will be lucky to get much more than a season out of it.

 

Next time get closed cell - far more durable & won't hold moisture and retains it shape better.

 

Lots of suppliers but if close to a "Clark Rubber" they usually have a very good (but pricey) selection. You will need to know the width, depth & how long (they sell by the m).

😈

I deliberately used open cell because the gap varies a lot around the edge of the doors. With closed cell, the doors would be impossible to close. It's about $7 a roll. If I have to replace it once a year it's no big deal.