Today's Message Index:
----------------------
1. 07:17 AM - Re: Zenith-List Digest: Stiff springs on carb cables, etc. (John M. Goodings)
2. 08:27 AM - Re: Re: Zenith-List Digest: Stiff springs on carb cables, (Mike Fothergill)
3. 10:10 AM - Re: Re: Zenith-List Digest: Stiff springs on carb cables, etc. (Frank Jones)
4. 10:15 AM - looking for a 701/801 test ride (Mike D'Ambrogia)
5. 01:02 PM - Re: Re: Zenith-List Digest: Stiff springs on carb cables, (Mike Fothergill)
6. 07:15 PM - 601 XL Proformance (ABGS)
7. 09:07 PM - vw engines for ch 701 (Mark Eagar)
8. 10:43 PM - Re: 601 XL Proformance (Steve Mallinson)
9. 10:43 PM - Re: vw engines for ch 701 (Dirk Slabbert)
Message 1
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| Subject: | Re: Zenith-List Digest: Stiff springs on carb cables, etc. |
--> Zenith-List message posted by: "John M. Goodings" <goodings@yorku.ca>
The springs at the ends of the cables running from the carbs to the
throttle bell crank on my Rotax 912S were very stiff; the engine always
tended to want to creep to full power, even when I had a lot of friction
on the throttle friction nuts on the Cessna-type throttle controls in the
panel. I didn't want to mess with the springs. My understanding is that
they are a safety device: if the throttle cable breaks or whatever, the
engine will go to full power, and you will get home! Two things helped
quite a lot. (1) I installed a counter-balance spring from the throttle
bellcrank to the top of the firewall. This spring and the throttle cable
springs balance at about cruise power. I had to try several springs
before I found one of the right stiffness - it is counterbalancing TWO
throttle cable springs. (2) I sprayed a lubricant into both ends of the
throttle cables which creeps along the cable and frees it up. (This was a
major help also on the CHOKE CABLE, which tends to be very stiff on Rotax
engines.) The bright red lubricant in a spray can goes by the name of
RUST CHECK, sold at Canadian Tire stores in Canada. It is much better
(much longer lasting) than WD40.
John Goodings, C-FGPJ, CH601HD with 912S, Toronto/Waterloo.
Message 2
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| Subject: | Re: Zenith-List Digest: Stiff springs on carb cables, |
etc.
--> Zenith-List message posted by: Mike Fothergill <mfothergill@sympatico.ca>
Hi John;
I agree that both the throttle and the choke cables are very stiff.
Re the counterbalance spring: What happens if the "Cessna" type cable
breaks between the handle and the firewall?
Re the Rust Check: Will it stay fluid forever?
Mike
CH-601HDS
UHS Spinners
Do not archive
John M. Goodings wrote:
> --> Zenith-List message posted by: "John M. Goodings" <goodings@yorku.ca>
>
> The springs at the ends of the cables running from the carbs to the
> throttle bell crank on my Rotax 912S were very stiff; the engine always
> tended to want to creep to full power, even when I had a lot of friction
> on the throttle friction nuts on the Cessna-type throttle controls in the
> panel. I didn't want to mess with the springs. My understanding is that
> they are a safety device: if the throttle cable breaks or whatever, the
> engine will go to full power, and you will get home! Two things helped
> quite a lot. (1) I installed a counter-balance spring from the throttle
> bellcrank to the top of the firewall. This spring and the throttle cable
> springs balance at about cruise power. I had to try several springs
> before I found one of the right stiffness - it is counterbalancing TWO
> throttle cable springs. (2) I sprayed a lubricant into both ends of the
> throttle cables which creeps along the cable and frees it up. (This was a
> major help also on the CHOKE CABLE, which tends to be very stiff on Rotax
> engines.) The bright red lubricant in a spray can goes by the name of
> RUST CHECK, sold at Canadian Tire stores in Canada. It is much better
> (much longer lasting) than WD40.
>
> John Goodings, C-FGPJ, CH601HD with 912S, Toronto/Waterloo.
>
>
>
>
>
>
>
Message 3
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| Subject: | Re: Zenith-List Digest: Stiff springs on carb cables, |
etc.
--> Zenith-List message posted by: "Frank Jones" <fjones@sympatico.ca>
I did exactly the same thing as John with the counterbalance spring. It
works well. If the cable breaks between the bellcrank and the throttle
I've still got the original Zenith metal rod throttle on the passenger
side as backup.
Frank Jones
C-GYXQ 601XL 912S
>Hi John;
>I agree that both the throttle and the choke cables are very stiff.
>Re the counterbalance spring: What happens if the "Cessna" type cable
>breaks between the handle and the firewall?
>Re the Rust Check: Will it stay fluid forever?
>Mike
>CH-601HDS
>UHS Spinners
>Do not archive
>
>John M. Goodings wrote:
> --> Zenith-List message posted by: "John M. Goodings"
<goodings@yorku.ca>
>
> The springs at the ends of the cables running from the carbs to the
> throttle bell crank on my Rotax 912S were very stiff; the engine
always
> tended to want to creep to full power, even when I had a lot of
friction
> on the throttle friction nuts on the Cessna-type throttle controls in
the
> panel. I didn't want to mess with the springs. My understanding is
that
> they are a safety device: if the throttle cable breaks or whatever,
the
> engine will go to full power, and you will get home! Two things
helped
> quite a lot. (1) I installed a counter-balance spring from the
throttle
> bellcrank to the top of the firewall. This spring and the throttle
cable
> springs balance at about cruise power. I had to try several springs
> before I found one of the right stiffness - it is counterbalancing TWO
> throttle cable springs. (2) I sprayed a lubricant into both ends of
the
> throttle cables which creeps along the cable and frees it up. (This
was a
> major help also on the CHOKE CABLE, which tends to be very stiff on
Rotax
> engines.) The bright red lubricant in a spray can goes by the name of
> RUST CHECK, sold at Canadian Tire stores in Canada. It is much better
> (much longer lasting) than WD40.
>
> John Goodings, C-FGPJ, CH601HD with 912S, Toronto/Waterloo.
>
Message 4
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| Subject: | looking for a 701/801 test ride |
--> Zenith-List message posted by: "Mike D'Ambrogia" <miked@jamagination.com>
If anybody in the central CA area is open to giving me a test ride in a
701 or 801 I'd be a happy camper. Not looking for anything heroic, just
want to see how they fly prior to possible purchase. Happy to pay for
gas and seat time. I fly out of Columbia/O22 but willing to travel to
your location.
Thx
Mike
Message 5
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| Subject: | Re: Zenith-List Digest: Stiff springs on carb cables, |
etc.
--> Zenith-List message posted by: Mike Fothergill <mfothergill@sympatico.ca>
Hi;
Good thought. I had forgotten that it was there.
Mike
CH-601HDS
Do not archive
Frank Jones wrote:
> --> Zenith-List message posted by: "Frank Jones" <fjones@sympatico.ca>
>
>
> I did exactly the same thing as John with the counterbalance spring. It
> works well. If the cable breaks between the bellcrank and the throttle
> I've still got the original Zenith metal rod throttle on the passenger
> side as backup.
>
> Frank Jones
> C-GYXQ 601XL 912S
>
>
>
>>Hi John;
>>I agree that both the throttle and the choke cables are very stiff.
>>Re the counterbalance spring: What happens if the "Cessna" type cable
>>breaks between the handle and the firewall?
>>Re the Rust Check: Will it stay fluid forever?
>>Mike
>>CH-601HDS
>>UHS Spinners
>>Do not archive
>>
>>John M. Goodings wrote:
>>--> Zenith-List message posted by: "John M. Goodings"
>
> <goodings@yorku.ca>
>
>>The springs at the ends of the cables running from the carbs to the
>>throttle bell crank on my Rotax 912S were very stiff; the engine
>
> always
>
>>tended to want to creep to full power, even when I had a lot of
>
> friction
>
>>on the throttle friction nuts on the Cessna-type throttle controls in
>
> the
>
>>panel. I didn't want to mess with the springs. My understanding is
>
> that
>
>>they are a safety device: if the throttle cable breaks or whatever,
>
> the
>
>>engine will go to full power, and you will get home! Two things
>
> helped
>
>>quite a lot. (1) I installed a counter-balance spring from the
>
> throttle
>
>>bellcrank to the top of the firewall. This spring and the throttle
>
> cable
>
>>springs balance at about cruise power. I had to try several springs
>>before I found one of the right stiffness - it is counterbalancing TWO
>>throttle cable springs. (2) I sprayed a lubricant into both ends of
>
> the
>
>>throttle cables which creeps along the cable and frees it up. (This
>
> was a
>
>>major help also on the CHOKE CABLE, which tends to be very stiff on
>
> Rotax
>
>>engines.) The bright red lubricant in a spray can goes by the name of
>>RUST CHECK, sold at Canadian Tire stores in Canada. It is much better
>>(much longer lasting) than WD40.
>>
>>John Goodings, C-FGPJ, CH601HD with 912S, Toronto/Waterloo.
>>
>
>
>
>
>
>
>
>
Message 6
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| Subject: | 601 XL Proformance |
--> Zenith-List message posted by: "ABGS" <abgs@impulse.net.au>
Hi
I am thinking of building a 601 XL with a 3300 Jab Motor
I am requesting from anyone with the same aircraft how it proforms eg. Speed, Climb,
etc
Thank you
Fly Safe
Allan
Cummins Spinners
www.cumminsspinners.com
Message 7
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| Subject: | vw engines for ch 701 |
--> Zenith-List message posted by: "Mark Eagar" <mark.eagar@prodigy.net>
Hi, wondering if anyone has experience adapting a vw engine to the 701. how hard
was it, etc.
thanks
Mark in El Dorado Hills, CA
tail section complete, waiting on rest of kit.
Message 8
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| Subject: | 601 XL Proformance |
--> Zenith-List message posted by: "Steve Mallinson" <mallinson2501@rogers.com>
Allan,
Me too. So I would echo the request to anyone with an XL with the 3300. Are
the specs and performance figures on the ZAC website accurate? Conservative?
Optimistic? I'd like to throw in additional questions of what type of fuel
do you use? What sort of consumption to you get? Also what type of oil do
you use/what's your climate? And lastly, any idea of cost to overhaul the
engine? For those installing a new engine and not a Subaru or Corvair, etc.,
the Jab seems to be the perfect engine for the Zodiac XL. Thoughts or
comments? Agree? Disagree? Those with other types (ie. like a 912S
obviously) feel free to chime in if you disagree.
Greedy, aren't I? :-) Any help to any of the above appreciated.
Thanks,
Steve
Toronto
Not building yet... :-( Will be a kit builder when I get started, not one
of those crazy plans builders... ;-)
-----Original Message-----
From: owner-zenith-list-server@matronics.com
[mailto:owner-zenith-list-server@matronics.com] On Behalf Of ABGS
Subject: Zenith-List: 601 XL Proformance
--> Zenith-List message posted by: "ABGS" <abgs@impulse.net.au>
Hi
I am thinking of building a 601 XL with a 3300 Jab Motor I am requesting
from anyone with the same aircraft how it proforms eg. Speed, Climb, etc
Thank you
Fly Safe
Allan
Cummins Spinners
www.cumminsspinners.com
advertising on the Matronics Forums.
Message 9
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| Subject: | Re: vw engines for ch 701 |
--> Zenith-List message posted by: "Dirk Slabbert" <dirkslabbert@telkomsa.net>
Mark,
Out here we have limited resources, so of course I had a look at this, comes
out far too heavy at 210 lbs.
Cooling is a big problem, you'll have to redesign the cowling, still then it does'nt
work on a hot day.
The VW is essentially a 60 hp engine for 210 lbs, in normal configuration, getting
anything more out of it means hot rodding, and winding it up, this is where
the cooling problems start.
Do the hp/cyl capacity calculation, the Lyc 235 is 3850cc and 115 hp, if you apply
this on a 2000cc vw you get 60 hp, if you want to stay anywhere near reliable.
I'd go for the Lycoming any day, if you can live with the weight, for it is the
same.
In short, adding engine weight upsets your w/b and limits your payload, which cannot
be rectified by adding weight rear, for you'll be over gross.
See where the Rotax comes in? 80 hp for 146lbs installed, with the cooling sorted
out, easy to see how Chris designed the 701 with this engine in mind.
Have a look at the Verner 133m too, could be an alternative.
Just some thoughts, hope it helps.
Dirk
701
Piketberg, South Africa
----- Original Message -----
From: Mark Eagar
To: zenith-list@matronics.com
Sent: Friday, January 14, 2005 7:05 AM
Subject: Zenith-List: vw engines for ch 701
--> Zenith-List message posted by: "Mark Eagar" <mark.eagar@prodigy.net>
Hi, wondering if anyone has experience adapting a vw engine to the 701. how
hard was it, etc.
thanks
Mark in El Dorado Hills, CA
tail section complete, waiting on rest of kit.
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