Today's Message Index:
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1. 06:08 AM - Re: Water pump removal =?ISO-8859-1?Q?=C3=82=C2=AB=C3=82=C2-in?= =?ISO-8859-1?Q?aircraft=C3=82=C2-=C3=82=C2=BB? (Nigel Graham)
2. 07:31 AM - Re: Roland Schmit Europa. Fuel Tank Debacle. (AirEupora)
3. 01:03 PM - Re: Roland Schmit Europa. Fuel Tank Debacle. (Roland)
4. 01:42 PM - Re: Roland Schmit Europa. Fuel Tank Debacle. (Dave Disney)
5. 03:23 PM - Re: Re: Roland Schmit Europa. Fuel Tank Debacle. (Pete)
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Subject: | Re: Water pump removal =?ISO-8859-1?Q?=C3=82=C2=AB=C3=82=C2-in?= |
=?ISO-8859-1?Q?aircraft=C3=82=C2-=C3=82=C2=BB?
One other potential cause of unexplained water loss is a porous cylinder head.
I have found this twice on early 912 engines, both in the number two head (front
left and rear right (the same part number).
Water seeps through the castings between the water jacket and the exhaust port.
On aircraft that have been left standing for some time (this won't apply to you
John!), it manifests itself as a white corrosion and blue deposit around the
valve base - as viewed through the exhaust port.
Nigel
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Subject: | Re: Roland Schmit Europa. Fuel Tank Debacle. |
I would not to quick in going to a metal tank. There would be a weight penalty.
I've replace two tanks on two different aircraft this last year. It's not
a hard job if you follow Bub's instructions to the letter. Here is the States
the hard part was paying the shipping from England. I checked around for a metal
tank and they wants twice what the Europa manufactured tank was going to
cost plus shipping. The new tank is about 0.5 gallons larger. If you follow
Bud's replacement instruction then the tank is floating in the frame and is
wedged in place instead of fiber-glassed.
One thing I did was to enlarge the two inspection holes on the bottom of the fuselage.
With my big hands it was a great help. I used three layers of bid across
both holes. Then cut out a five half inch circle.
Have fun! I hope you don't have a lot of upholstery around the seat back!
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Subject: | Re: Roland Schmit Europa. Fuel Tank Debacle. |
But what is the actual disadvantage of the aluminium tank other than its higher
price? The tank of Bill Sisley is narrower than the original tank but taller,
hence should fit into place more easily than the original tank even without the
necessity to cut the door sill. If I avoid to go through the same debacle after
17 years again I'll happily accept a higher price for the aluminium tank.And
I'd have 17 litres more fuel at my disposal which comes handy for trip planning,
especially to avoid leaded Avgas.
My only concern so far is, that a metal tank might be more prone to condensation
which I mostly can avoid when filling the tank full after flying.
According to Bill Sisley the weight penalty for the 85 l tank is about 1 kg compared
to the original Europa tank.
So on the negative side I only see condensation maybe more likely (?), a higher
price (how much is the original Europa tank - Bill talked about 800 EUR for the
aluminium tank in 2014) and a higher weight of about 1 kg.
The biggest advantage of the aluminium tank is in my opinion, that it is an ultimate
fix of a weak point.
Anyway - thank you for your thoughts!
Regards
Roland
XS TG 914
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Subject: | Re: Roland Schmit Europa. Fuel Tank Debacle. |
My tank developed a split but I didnt want to go through the hassle of fitting
a new tank, so I looked at alternative ways of overcoming the problem. In the
end I repaired the tank in situ, the repair has held up for the last two years
so Im glad I didnt rip out the original tank.
Watch this video to understand the process to repair the tank https://www.youtube.com/watch?v=Lqu3NVqFNCU
For access I cut a hole between the headrests in the cockpit module, then cut a
smaller hole in the top of the fuel tank below (having drained it first), this
allowed me to see inside the tank & I could see the crack for the first time.
I figured I had nothing to lose doing this because it would be an easy repair
if I ended up cutting off the top of the headrests to remove the tank before
fitting a new one as per Buds instructions.
There are some pictures (hopefully).
I followed the process in the video above. It was a bit awkward working through the cut-out in the tank top but it was doable. I had to buy a small heat gun for the welding process so bought one of these https://www.youtube.com/watch?v=RFxN65eJWOo The panel I cut out of the top of the tank was used as welding filler for the repair.
I developed a repair scheme that was approved by our LAA in the UK. I made up a
removable cover for the cut out in the cockpit module between the headrests which
was bonded on and made a nut-ring and cover out of aluminium with a gasket
to seal the top of the fuel tank.
I now drain and clean the inside of tank every annual inspection to see how the
repair is doing and all seems good so far.
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Subject: | Re: Roland Schmit Europa. Fuel Tank Debacle. |
Potential weld leaks/cracks over time (aluminum welding is prone to cracking as
it is difficult to properly anneal from my limited understanding)
Fwiw,
Cheers,
Pete
> On Aug 6, 2018, at 4:03 PM, Roland <schmidtroland@web.de> wrote:
>
>
> But what is the actual disadvantage of the aluminium tank other than its higher
price? The tank of Bill Sisley is narrower than the original tank but taller,
hence should fit into place more easily than the original tank even without
the necessity to cut the door sill. If I avoid to go through the same debacle
after 17 years again I'll happily accept a higher price for the aluminium tank.And
I'd have 17 litres more fuel at my disposal which comes handy for trip planning,
especially to avoid leaded Avgas.
>
> My only concern so far is, that a metal tank might be more prone to condensation
which I mostly can avoid when filling the tank full after flying.
>
> According to Bill Sisley the weight penalty for the 85 l tank is about 1 kg compared
to the original Europa tank.
>
> So on the negative side I only see condensation maybe more likely (?), a higher
price (how much is the original Europa tank - Bill talked about 800 EUR for
the aluminium tank in 2014) and a higher weight of about 1 kg.
>
> The biggest advantage of the aluminium tank is in my opinion, that it is an ultimate
fix of a weak point.
>
> Anyway - thank you for your thoughts!
>
> Regards
> Roland
> XS TG 914
>
>
>
>
> Read this topic online here:
>
> http://forums.matronics.com/viewtopic.php?p=482121#482121
>
>
>
>
>
>
>
>
>
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