Today's Message Index:
----------------------
1. 12:01 AM - Re: Re: XL trim authority with full flap (Bryan Martin)
2. 04:59 AM - Re: Corvair Project/1965 110 hp Engine for sale in Chicago (jnbolding1)
3. 04:59 AM - Avex 1604-0412 (Grant Corriveau)
4. 07:14 AM - Remove bearings (Frank Jones)
5. 08:03 AM - Re: Re: 601XL Fuel Valve and duel control problem (Thilo Kind)
6. 08:13 AM - Re: Remove bearings (Crvsecretary@aol.com)
7. 08:18 AM - Re: Avex 1604-0412 (Thilo Kind)
8. 08:39 AM - Re: Remove bearings (Fly Boy)
9. 05:15 PM - test (Carlos Sa)
10. 05:30 PM - 701 fuel sender unit (Gdascomb@aol.com)
11. 06:41 PM - Re: Re: XL trim authority with full flap (Mark Stauffer)
Message 1
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| Subject: | Re: XL trim authority with full flap |
--> Zenith-List message posted by: Bryan Martin <bryanmmartin@comcast.net>
on 12/7/04 7:44 PM, wizard-24@juno.com at wizard-24@juno.com wrote:
> --> Zenith-List message posted by: "wizard-24@juno.com" <wizard-24@juno.com>
>
>
> In reading all the emails in this thread -- has anyone that has taken a ride
> in ZAC's XL demo noticed this same problem? Seems to me that if the demo has
> this issue, ZAC would (should) have come up with a solution by now.
>
The demo has a Rotax in it and a basic VFR panel, mine has a Subaru and a
full IFR panel. That makes a big difference, the demo might not have the
same problem. The further aft the CG is the easier it is to trim nose up.
Chris's prototype has an O-240 in it but it has the battery way back by the
tail to balance it out. If you use the lighter Grove or Czech main landing
gear spring that has been mentioned in this list, that'll move the GC
forward a bit also. Each plane is hand-made and unique, each one has its own
little quirks that might require a little tweaking to iron out. Each
solution will be a little different.
--
Bryan Martin
N61BM, CH 601 XL, Stratus Subaru.
In Phase I testing.
do not archive.
Message 2
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| Subject: | Re: Corvair Project/1965 110 hp Engine for sale in Chicago |
--> Zenith-List message posted by: "jnbolding1" <jnbolding1@mail.ev1.net>
The engine has never been
>taken apart...but it was removed from the chassis in
>August 2004. It has the desirable 12-fin oil cooler.
>The crank turns freely, although it will not turn past
>360 degrees. Perhaps a stuck valve?
Have disassembled 9-10 of these engines and have found four in this condition.
2 had thrown rods,both failed thru the windage tray and the other two had rust
,debris in one cyl that wouldn't let it go quite all the way around TDC. LOW&SLOW
John
Message 3
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1.40 DATE_IN_FUTURE_96_XX Date": zenith-list@matronics.com
--> Zenith-List message posted by: Grant Corriveau <grantc@ca.inter.net>
> BTW how would we test
> some of these? First we would have to get our hands on some that we knew were
> made there and run tests.
Maybe check with Zenair to see what they're doing with their kits? I
believe they did intial tests back 'when' which led to their admonition to
use the U.K. produced versions vs. the others. They could at least advise
us as to which ones they use/recommend now, and what their testing criteria
were. fwiw
--
Grant Corriveau
C-GHTF / HDS / CAM100
Message 4
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--> Zenith-List message posted by: "Frank Jones" <fjones@sympatico.ca>
As expected, my Matco bearings went on the nose wheel the other day. I'm
having a heck of a time removing the outer portion of the bearing from
the wheel. Can anyone tell me how you accomplished this?
Frank Jones
C-GYXQ 601XL
Message 5
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| Subject: | Re: 601XL Fuel Valve and duel control problem |
--> Zenith-List message posted by: "Thilo Kind" <thilo.kind@gmx.net>
Hi Frank,
pretty sure, there is no hole, but agree with you: the pump most certainly
has a pressure relief valve or similar built in.
Regarding having the engine pump alone: as said earlier, I'm fully agree
with you - I just did that as a test (for half a minute or so with the
airport in gliding distance) to see what happens in case the electrical
system failed.
To all of you: you are probably sick and tired of Frank preaching to y'all
about sucking fuel - especially mogas - uphill. But Frank is right on this.
Sucking fuel uphil is bad news and WILL most certainly lead to vapour lock.
Happy building / flying
Thilo Kind
----- Original Message -----
From: "Hinde, Frank George (Corvallis)" <frank.hinde@hp.com>
Subject: RE: Zenith-List: Re: 601XL Fuel Valve and duel control problem
> --> Zenith-List message posted by: "Hinde, Frank George (Corvallis)"
<frank.hinde@hp.com>
>
> Duh...Are you sure there isn't a hole in your diaphram there
> Thilo?....:)
>
> Interesting, the pump must have some kind of pressure relief/regulator
> built in?
>
> Hmm...Still you would never want to use the engine pump alone because it
> will now be sucking both uphill (with a hot pump) and through a dead
> Facet pump which will have some forward flow pressure drop...Never
> measured it though. So it still seems redundant on a Rotax, at least
> with low wing tanks.
>
> Frank
>
> -----Original Message-----
> From: owner-zenith-list-server@matronics.com
> [mailto:owner-zenith-list-server@matronics.com] On Behalf Of Thilo Kind
> To: zenith-list@matronics.com
> Subject: Re: Zenith-List: Re: 601XL Fuel Valve and duel control problem
>
>
> --> Zenith-List message posted by: "Thilo Kind" <thilo.kind@gmx.net>
>
> Hi Frank and all,
>
> I have the setup you described: Zodiac CH 601 HDS with L/E tanks, a
> Faucet pump in each bay (which I also use as tank selectors), and the
> Rotax 912 pump in series. During flight operations I always run one
> Faucet pump and the engine pump. I also have a fuel pressure sensor
> downstream of the engine driven pump. For test purposes I have switched
> off the Faucet pumps (yes, I'm fully aware of the purpose of vapor lock
> in this case - we fully agree on this subject. However, this was done
> just for test purposes). The interesting observation was, that the fuel
> presssure doesn't change at all. So, I assume, it doesn't matter from
> the perspective of over-pressuring the Bing whether or not the engine
> driven pump is installed.
>
> Happy flying
>
> Thilo Kind
> currently in Taiwan, where no general aviation exists :-(
>
>
Message 6
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| Subject: | Re: Remove bearings |
--> Zenith-List message posted by: Crvsecretary@aol.com
Hello Frank:
You've got a difficult job, no doubt. I am not aware of the details of the
design of the hub, but if your bearing disintragated, your options are few:
- drive out the bearing on the other side to get access to the outer race
of the destroyed bearing and drive it out from the other side. The advantage
of this is you'll replace TWO bearings when you're done...two new bearings
are better than 1 old & 1 new
- heat up the hub to loosen the fit and try to drive the outer race out (
good luck!)
- bring it to a machine shop that has an internal puller that can pull the
race only out
Good Luck!
Tracy
In a message dated 12/8/2004 10:15:03 AM Eastern Standard Time,
fjones@sympatico.ca writes:
--> Zenith-List message posted by: "Frank Jones" <fjones@sympatico.ca>
As expected, my Matco bearings went on the nose wheel the other day. I'm
having a heck of a time removing the outer portion of the bearing from
the wheel. Can anyone tell me how you accomplished this?
Frank Jones
C-GYXQ 601XL
Message 7
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| Subject: | Re: Avex 1604-0412 |
--> Zenith-List message posted by: "Thilo Kind" <thilo.kind@gmx.net>
Now, I have to reply to that one. I am currently living in Taiwan, which by
the way is very Chinese. It is just another government that that on the
Chinese mainland. It's an interesting political relationship that those 2
countries have - they are de facto on the edge of war. However, the
population is Chinese, almost all of them from the Chinese mainland, from
which they came during the civil war (Mao, etc.).
I'm here because I'm building a plant for the company I work for. So, I'm
dealing with all kind of contractors including electrical companies. After
being here now for 1/2 year it beads me how they make high tech here. I have
carefully selected my contractors, but it is still a far cry from the
American or especially the European guys I have worked with before.
On the other hand I found a mechanical guy (one man company) who does all
the stainless steel metal work for me. I was watching him yesterday welding
some complex part - this guy is just incredible.
Talking about China and the rivets coming from there: I have also spent a
lot of time in mainland China and have seen lots of manufacturers over
there. The growth rate of that country is simply amazing. As for quality:
the Chinese themselves don't have an understanding of quality like we have
it (one reason, why they are so low cost), so I would never trust parts made
by such a company. However, if a foreign company like Avex is running their
own plant and probably have sent some managers over the quality level is
typically on par with their plants in the US or Europe.
Thilo Kind
currently Taoyuan City, Taiwan
----- Original Message -----
From: "Trevor Page" <webmaster@upac.ca>
Subject: Re: Zenith-List: Avex 1604-0412
> --> Zenith-List message posted by: Trevor Page <webmaster@upac.ca>
>
> I'm a little concerned that most people seem to think that anything
> coming from China is de-facto inferior.
>
> I for one have invested much money into a particular computer hardware
> manufacturer who makes most for their products in Taiwan (I know its
> not Chinese but might as well be) and in the R.O.C. I've NEVER had any
> problems with their equipment. I'd suggest getting some testing done on
> these Avex rivets before we just assume that they are not up to par in
> quality control.
>
> Trevor Page
>
> DO NOT ARCHIVE
> DO NOT FLAME
>
> On Dec 7, 2004, at 1:44 PM, kevinbonds@comcast.net wrote:
>
> > --> Zenith-List message posted by: kevinbonds@comcast.net
> >
> > Nick
> >
> > Good news and Bad news. The plant in NJ closed years ago, so those so
> > called bad rivets are probably long gone. Bad news is, as of last Oct.
> > the 1604-0412's are being produced in China. Check the archives for
> > the complete history on this. I believe I sent an email about this
> > back in the spring. I got this info from two different sales people in
> > Canada where I ordered my rivets.
> >
> > Kevin Bonds
> >
> > -------------- Original message --------------
> >
> >> --> Zenith-List message posted by: nick pace
> >>
> >> I am using Avex 1604-0412 from Airparts Inc. and I
> >> believe they are made in America. I read that the
> >> quality control is not as good and they are not
> >> recomended for aircraft use.Has or is anyone else
> >> using these rivets and does anyone have any thoughts
> >> on this subject? I would like to thank the list for
> >> any consideration.
> >>
> >> =====
> >> A Fellow Aviator
> >> Nick Pace
> >> Harpers Ferry WV
> >> Building a 601XL #5607
> >> Corvair Powered
> >> {just started}
> >>
> >>
> >>
> >> __________________________________
> >> http://my.yahoo.com
> >>
> >>
> >>
> >>
> >>
> >>
> >
> > Nick
> >
> > Good news and Bad news. The plant in NJ closed years ago, so those so
> > called bad rivets are probably long gone. Bad news is, as of last Oct.
> > the 1604-0412's are being produced in China. Check the archives for
> > the complete history on this. I believe I sent an email about this
> > back in the spring. I got this info fromtwo differentsalespeople in
> > Canada where I ordered my rivets.
> >
> > Kevin Bonds
> >
> > -------------- Original message --------------
> >
> > -- Zenith-List message posted by: nick pace <ASKNICKP@YAHOO.COM>
> >
> > I am using Avex 1604-0412 from Airparts Inc. and I
> > believe they are made in America. I read that the
> > quality control is not as good and they are not
> > recomended for aircraft use.Has or is anyone else
> > using these rivets and does anyone have any thoughts
> > on this subject? I would like to thank the list for
> > any consideration.
> >
> > =====
> > A Fellow Aviator
> > Nick Pace
> > Harpers Ferry WV
> > Building a 601XL #5607
> > Corvair Powered
> > {just started}
> >
> >
> > __________________________________
> > http://my.yahoo.com
> >
> >
> > =========================================
> >
> >
>
>
Message 8
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b=jwFeP0gHVjOBlbMyvWO6DZpRKGKXET4+g9BEHKX8cTINwTomvDdGJh7SidjG+p6UtifP46zVrnd+Bz2JJI4/9omzteILfnKlQVxHKU5Twr7p2qUqQEgjRAPUsSYto8jSNevosoTI3o7bGX1yF47lDWidsYtbWqCklD2LNqko+E8=
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| Subject: | Re: Remove bearings |
--> Zenith-List message posted by: Fly Boy <nfivesl@yahoo.com>
I would like to install a different nose wheel (Grove possibly). Has anybody on
the list installed a non-Matco wheel on the front and if so can you give me
some advice on where to purchase such a nose wheel. My drawings show a Matco
5" wheel with a 5/8" solid axle. The Grove wheel has a 1-1/4" axle and an 800
lb capacity. This seems like overkill. Any ideas?
If Matco is the best choice can somebody provide me with a source for this wheel.
I need to order it in the next week or so.
Thanks.
Crvsecretary@aol.com wrote:
--> Zenith-List message posted by: Crvsecretary@aol.com
Hello Frank:
You've got a difficult job, no doubt. I am not aware of the details of the
design of the hub, but if your bearing disintragated, your options are few:
---------------------------------
Message 9
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b=dFu0HOCQgbbRQBd/fhU4uMKq7ZzK6D7xf6zZoJFNFjJDwKSFEFMQxQ2GdKJpdG4vMtvVK8ySasrtPEMiOFvX9a5CDKrTYrYgIgljQqCc3QR8EiTrFKCci8/rDpb8CqA+6yqlRtBuyJoHM+1bo18CHvE057C0CQaxxWqrdS6sRx4=
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--> Zenith-List message posted by: Carlos Sa <carlosfsa@yahoo.com>
test
do not archive
Message 10
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| Subject: | 701 fuel sender unit |
--> Zenith-List message posted by: Gdascomb@aol.com
I would like to hear from 701 builders about the new location of the fuel
sender. Revised 11-27/04. Questions. #1. What was the problem with the top
position of the sender?#2 Is it accepted practice to drill in the side of the
fuel tank?#3 What about safety wire on the sender.?..none shown on the pictures.
Thanks for ny comments .
George
Sugar Land, TX
Message 11
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| Subject: | Re: XL trim authority with full flap |
--> Zenith-List message posted by: "Mark Stauffer" <mark.stauffer@cablespeed.com>
The demo used to have a Rotax in it. When I was there November '02 for the
rudder class it had the Jabiru 3300.
I took the demo ride but cannot tell you about any trim problems. I only
flew it at cruise and at that speed everything felt fine.
Mark
Mark Stauffer
601XL Tail finished, working on fuselage
Odenton, MD
Do not archive
The demo has a Rotax in it and a basic VFR panel, ............
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