Monroy Longrange Tank installation

[Emmet]

Thx Jose !

[201er]

14 hours ago, Piloto said:

The tank kit parts are installed in the wing through the existing bottom inspection panels. No special tools or skills (except riveting) are required. After the parts are installed the cavity is sealed the same way as the main tanks. There is no fuel pump required thus no wiring involved. For plane with speed brakes there is barrier installed at the speed brakes area to contain the fuel.

José

The only change to the main tanks are the addition of AN fittings to allow the fuel transfer from the aux. to the mains. On the M20C, F and J the fittings can be installed through the filler hole so no access panel need to be removed.

José

Doesn't it also involve sealing the original fuel vents and adding new outboard ones?

And don't forget the most important thing, placards and POH supplement!

[Piloto]

2 hours ago, 201er said:

Doesn't it also involve sealing the original fuel vents and adding new outboard ones?

And don't forget the most important thing, placards and POH supplement!

Only the C, E, F and J have new vents. The later models use the existing vents.

José

[Mcstealth]

21 hours ago, Piloto said:

It is actually 3 gallons per side for a total of six gallons less.

José

Prof, can I get half credit??

[anthonydesmet]

@Piloto, resurrecting this thread just to make sure I read through the thread correctly for the M20K with speed brakes. My mission changed over the last 6 months.  Virginia Beach used to be my home base to fly to Boston, Central Florida and Chicago.  I am now based out of X35 in Florida so I need legs to get up to Boston plus I see vacations out west for my wife and I in the future so looking at the LRT's.

- I understand all about accessing the outer panels for installation (riveting) and putting the barrier in for the speed brakes. I don't think I have any questions IRT installation

- Confirm I lose 6 gallons total with the LRT compared to non speed brakes so as I understand it I will have 94 total gallons useable vice 100 gal

- For the K, I will not need additional vents put in

- For the K, they will have to use a lower access panel to install the fitting between the LRT's and the main tanks.

- Aproximately what is the required hours/down time to install 

I just want to make sure I have understood correctly.  I will probably go back to Edison for the install.  He did my reseal two years ago.

Thanks for the help 

[Piloto]

29 minutes ago, anthonydesmet said:

@Piloto, resurrecting this thread just to make sure I read through the thread correctly for the M20K with speed brakes. My mission changed over the last 6 months.  Virginia Beach used to be my home base to fly to Boston, Central Florida and Chicago.  I am now based out of X35 in Florida so I need legs to get up to Boston plus I see vacations out west for my wife and I in the future so looking at the LRT's.

- I understand all about accessing the outer panels for installation (riveting) and putting the barrier in for the speed brakes. I don't think I have any questions IRT installation

- Confirm I lose 6 gallons total with the LRT compared to non speed brakes so as I understand it I will have 94 total gallons useable vice 100 gal  Correct

- For the K, I will not need additional vents put in   Correct

- For the K, they will have to use a lower access panel to install the fitting between the LRT's and the main tanks. Same as on M20C, M20J and M20K

- Aproximately what is the required hours/down time to install  About 60 man-hours

I just want to make sure I have understood correctly.  I will probably go back to Edison for the install.  He did my reseal two years ago. Good choice.

Thanks for the help  

Don't forget to add a pilot relief tube when adding the LRT. It will make the trip more enjoyable!!

José

Edited May 23, 2018 by Piloto

[anthonydesmet]

15 hours ago, Piloto said:

Don't forget to add a pilot relief tube when adding the LRT. It will make the trip more enjoyable!!

José

Amen!!  With the money I have spent on porta johnnies so far I probably could have paid for it twice.....

[Airways]

So I'm thinking about going the opposite direction; I have the Monroy fuel tanks but I have no use for them.  As soon as I would board my fully fueled Mooney, I'd be in overweight.  Additionally, the LR- tanks leak quite a bit.  So I was thinking that, instead of resealing the LR-tanks, I'd plug the connection between the LR-tanks and the main tanks.  Is it as simple as that ?

[Fly Boomer]

3 hours ago, Airways said:

I was thinking that, instead of resealing the LR-tanks, I'd plug the connection between the LR-tanks and the main tanks.  Is it as simple as that ?

If it is allowed by your aviation authorities, that is about it.  If there is a separate fuel vent, you may wish to plug that as well.  Also, I would maintain the fuel caps so water does not get into the LR tanks.

[1980Mooney]

4 hours ago, Airways said:

So I'm thinking about going the opposite direction; I have the Monroy fuel tanks but I have no use for them.  As soon as I would board my fully fueled Mooney, I'd be in overweight.  Additionally, the LR- tanks leak quite a bit.  So I was thinking that, instead of resealing the LR-tanks, I'd plug the connection between the LR-tanks and the main tanks.  Is it as simple as that ?

 

1 hour ago, Fly Boomer said:

If it is allowed by your aviation authorities, that is about it.  If there is a separate fuel vent, you may wish to plug that as well.  Also, I would maintain the fuel caps so water does not get into the LR tanks.

You have to be really careful about this.  You should have the Monroy Installation manual w/drawings with the plane documents.  The original fuel tank vents on the main tanks were removed and plugged during the Monroy installation.  There are two (2) lines connected between each Main tank and Monroy Aux tank - one (1) is the fuel line at the bottom of the wing and one (1) is a vent line at the top of the wing.  Then a new fuel tank vent was connected to the new Monroy Aux tank.  It vents both the Monroy Aux tank and the Main tank.

 

@aviatoreb posted a picture of the parts list a couple years ago.  

 

 

[Fly Boomer]

1 hour ago, 1980Mooney said:

The original fuel tank vents on the main tanks were removed and plugged during the Monroy installation.

I wouldn't swear to it, and I am too far from my airplane to verify, but I think this may not be true for M20K.  For the C, E, F, and J it is true.

[M20F]

Anyone hear from Jose lately?  I miss him and his piss tube. 

[Fly Boomer]

6 hours ago, M20F said:

Anyone hear from Jose lately?  I miss him and his piss tube. 

Eighteen months since he logged on.  Probably not good.

[Falcon Man]

If you plan to eliminate vacuum system in future, consider changing to electric speed brakes at the same time as the Monroe tanks.