Today's Message Index:
----------------------
1. 06:39 AM - Dzus Grommets (docponds)
2. 08:47 AM - Re: Dzus Grommets (fritz)
3. 10:37 AM - Re: Dzus Grommets (Les Goldner)
4. 12:26 PM - Re: Dzus Grommets (LarryMcFarland)
5. 12:34 PM - Re: Dzus Grommets (LarryMcFarland)
6. 05:11 PM - Re: Dzus Grommets (NYTerminat@aol.com)
7. 07:22 PM - 701 rudder horn bend (Bob Percival)
Message 1
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I'm using Dzus fasteners for my cowl. They came with the Skyshop
firewall forward package for the 701. Do I need grommets to protect the
fiberglass where the studs go through or can the studs be attached
without grommets ? Grommets were not included in the FWF kit.
Roland Smith N701AA
Message 2
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| Subject: | Re: Dzus Grommets |
I recommend grommets and also to make sure you have the correct length,
so you have a nice tight fit. Many years ago on my 701, the Dzus
fasteners didn't fit tight (I thought they did). The chaffing and
vibration caused the holes to enlarge. On one flight, the left side of
my top cowling came "undone" and popped up at about a 45 degree angle.
I made an uneventful landing, actually looking "under the top left side
of the cowling" it was so high up.
I was lucky it stayed with the airplane and that it didn't come off and
hit something or someone on the ground.------ Looking back on the
situation----- I should have used an aluminum backing "plate" where the
grommet went through the fiberglass.
Hope this helps.
Fritz
----- Original Message -----
From: docponds
To: zenith701801-list@matronics.com
Sent: Tuesday, December 30, 2008 9:38 AM
Subject: Zenith701801-List: Dzus Grommets
I'm using Dzus fasteners for my cowl. They came with the Skyshop
firewall forward package for the 701. Do I need grommets to protect the
fiberglass where the studs go through or can the studs be attached
without grommets ? Grommets were not included in the FWF kit.
Roland Smith N701AA
Message 3
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Roland,
I think that the grommets look really nice and probably protect the
fiberglass. However, I didn't know how to install them properly and so I
left them out.
My 701 plane has been flying for over a year. I have not noticed any damage
to the un-grommeted fiberglass even though I take the cowl off about once a
week. If I start to see wear, I will try to install grommets but it does not
look like I will need them.
Les
From: owner-zenith701801-list-server@matronics.com
[mailto:owner-zenith701801-list-server@matronics.com] On Behalf Of docponds
Sent: Tuesday, December 30, 2008 6:38 AM
Subject: Zenith701801-List: Dzus Grommets
I'm using Dzus fasteners for my cowl. They came with the Skyshop firewall
forward package for the 701. Do I need grommets to protect the fiberglass
where the studs go through or can the studs be attached without grommets ?
Grommets were not included in the FWF kit.
Roland Smith N701AA
Message 4
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| Subject: | Re: Dzus Grommets |
Roland,
Also consider using thermoplastic grommets type GP rather than the
aluminum kind as they will secure the Dzus fasteners and you don't need
any special tools to
put them on or replace them. Important is the gap that accrues for grip
when turning the Dzus to secure the lid. The grommets can be helpful in
this as well.
Aircraft Spruce part number GP5B is likely but size your grommets to fit
the Dzus diameter. About .06 each.
Larry McFarland
fritz wrote:
> I recommend grommets and also to make sure you have the correct
> length, so you have a nice tight fit. Many years ago on my 701, the
> Dzus fasteners didn't fit tight (I thought they did). The chaffing
> and vibration caused the holes to enlarge. On one flight, the left
> side of my top cowling came "undone" and popped up at about a 45
> degree angle. I made an uneventful landing, actually looking "under
> the top left side of the cowling" it was so high up.
>
> I was lucky it stayed with the airplane and that it didn't come off
> and hit something or someone on the ground.------ Looking back on the
> situation----- I should have used an aluminum backing "plate" where
> the grommet went through the fiberglass.
>
> Hope this helps.
> Fritz
>
> ----- Original Message -----
> *From:* docponds <mailto:docponds@sover.net>
> *To:* zenith701801-list@matronics.com
> <mailto:zenith701801-list@matronics.com>
> *Sent:* Tuesday, December 30, 2008 9:38 AM
> *Subject:* Zenith701801-List: Dzus Grommets
>
> I'm using Dzus fasteners for my cowl. They came with the
> Skyshop firewall forward package for the 701. Do I need grommets
> to protect the fiberglass where the studs go through or can the
> studs be attached without grommets ? Grommets were not included
> in the FWF kit.
>
> Roland Smith N701AA
>
> *
>
> href="http://www.matronics.com/contribution">http://www.matronics.com/chref="http://www.matronics.com/Navigator?Zenith701801-List">http://www.matronics.com/Navigator?Zenith701801-List
> href="http://forums.matronics.com">http://forums.matronics.com
> *
>
> *
>
> *
Message 5
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| Subject: | Re: Dzus Grommets |
Les and Roland,
I should mention that you can make Dzus grommets from milk jug material
if you're careful to punch out the correct inside diameter
and trim the outside diameter to less than the Dzus head. These work
well too so long as the inside diameter is snug to the Dzus stem.
The object is, of course to keep the Dzus from becoming loose parts and
being floppy in the hole. Insert Dzus thru the fiberglass and add
the plastic washer, that's it.
Larry McFarland 601HDS at www.macsmachine.com
Les Goldner wrote:
>
> Roland,
>
> I think that the grommets look really nice and probably protect the
> fiberglass. However, I didnt know how to install them properly and so
> I left them out.
>
> My 701 plane has been flying for over a year. I have not noticed any
> damage to the un-grommeted fiberglass even though I take the cowl off
> about once a week. If I start to see wear, I will try to install
> grommets but it does not look like I will need them.
>
> Les
>
> *From:* owner-zenith701801-list-server@matronics.com
> [mailto:owner-zenith701801-list-server@matronics.com] *On Behalf Of
> *docponds
> *Sent:* Tuesday, December 30, 2008 6:38 AM
> *To:* zenith701801-list@matronics.com
> *Subject:* Zenith701801-List: Dzus Grommets
>
> I'm using Dzus fasteners for my cowl. They came with the Skyshop
> firewall forward package for the 701. Do I need grommets to protect
> the fiberglass where the studs go through or can the studs be attached
> without grommets ? Grommets were not included in the FWF kit.
>
> Roland Smith N701AA
>
Message 6
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| Subject: | Re: Dzus Grommets |
Roland,
Grommets would help protect the fiberglass. I did not use them and I am
starting to see some wear after 160 hrs.on my SkyShop cowl.
Bob Spudis
N701ZX
In a message dated 12/30/2008 9:39:38 A.M. Eastern Standard Time,
docponds@sover.net writes:
I'm using Dzus fasteners for my cowl. They came with the Skyshop firewall
forward package for the 701. Do I need grommets to protect the fiberglass
where the studs go through or can the studs be attached without grommets ?
Grommets were not included in the FWF kit.
Roland Smith N701AA
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Message 7
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| Subject: | 701 rudder horn bend |
Do any of you scratch builders have good recipe for getting the 30
degree bend in the .090 rudder horn. I have everything else ready to
assemble but this step is humbling me.
Thanks - Do Not Archive
Bob Percival
701/Vair
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