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While doing the annual on a 13 year old aircraft, I used a 1 inch tube to siphon out the fuel. I assume the large black rubbery deposit in the photo is part of the internal coating of the tank. Has an ...

I think I have the answer to this.
It's an MPL 503 pressure switch
https://www.aircraftspruce.com/catalog/inpages/mpl500series-ps.php
The V-vacuum side connects to the port in the leading edge and ...

Dee

See my original post
http://forums.matronics.com/viewtopic.php?t=55665

I'm pretty sure it was the collar above the compression block which we machined down (in your second photo which corr ...

Hi Hugh

Yes, I remember.

My website is www.aero-siam.com

Regards
Paul

Luis
I also have a 2006 Allegro with wing tanks. The plumbing is a little complicated - it's good if you can get a drawing

Regards
Paul

Dee, do you have wing tanks ?

I had a problem of fuel vapour smells but only on the climb out. The translucent small fuel overflow / vent lines from the wing tanks were the problem. The original co ...

Hi Hugh / Dee

My website and email forwarding problem has just been resolved

I keep the website up just to provide info on this great plane.

The nosewheel was stiff on delivery. It was 10 yea ...

I also had a problem with the gas cap about 2 years after I bought the plane. It leaked and was difficult to remove. I replaced it with the non-lockable version from the factory. It's been ok for 6 ye ...

During a biennial with a CFI, the stall characteristics were tested. The plane is a 2006 Allegro 100 hp fitted with full span vortex generators plus VGs on the bottom trailing edge of the horizontal s ...

Larry

I have the same problem. It sounds after touchdown. The system worked normally for a couple of years so i am not sure an adjustment will cure your problem.

Presumably you already checked t ...

I would be interested to hear Thom's expert view on this subject.

I have no idea if this is correct but here is my take on it.

The Allegro 2000 was designed to the 'standard' European normal / ...

There are a choice of 3 fuels here in Thailand.

'Normal' 95 octane
91 octane
95 Gasohol (ethanol) either E5 or E10

Normally I use normal 95 but many areas of Thailand no longer have it and I h ...

I agree wth Brian's comments

The pinhole is presumably the breather and can also be used to top up cleanly with a hypodermic needle.

I replaced the disk pads and bled the system a couple of year ...

interesting.

The spec says 1,320 lb (600 kg) and VNE 168 mph. Is this a typo or US-spec or correct for the 2007 model? The pre 2007 model was 1,144 lb (520 kg), 138 VNE

The site also says " ...

The first photo also shows the modification to the wires on the flap microswitches which I mentioned in an earlier post.

The factory used a computer ribbon which has extremely thin wires. Over time ...

Someone asked me for photos of the servo installation in a previous post.

I have more photos from different angles if anyone wants them by email. The install is pretty simply but the black electric ...

What about DOT 5 silicon brake fluid (not 5.1) ?

Paul

Hugh
I replaced all the seals possible. I think the plunger seal in the master cylinder is important as Brian suggests.

I had to pump the brake 3 times before startup to ensure I have sufficient ...

The brake system on our 4 year old plane was stripped down for inspection and to renew all the seals and O rings.

This is a straightforward task. One caliper needed honing due to minor corrosion. ...

Both outer and 1 inner hinge showed signs of play at the 200 hour inspection. The aileron could be moved vertically upwards. In flight, the ailerons were slightly reflexing.

Thom Riddle advised tha ...