Today's Message Index:
----------------------
1. 11:24 AM - Re: Anybody There? (Jim Crowder)
2. 10:59 PM - Re: Anybody There? (xl)
3. 11:13 PM - Re: Anybody There? (Jim Crowder)
Message 1
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| Subject: | Re: Anybody There? |
--> Jabiru-List message posted by: Jim Crowder <jimlc@att.net>
Joe,
I will not receive my engine until late February as per their
acknowledgement. I was told when I ordered it that since they had
added hydraulic valve lifters to the engine, there had been a surge
in orders and a push out in delivery times. So no I have not cleaned
my carburetor. What is the story behind this? How do you like your
engine? How long have you had it? Is there anything else you can
tell me? What can you tell me about its performance? Where are you
located? I have had little owner feedback up until now and am
starved for information.
Many thanks,
Jim Crowder
Loveland, CO
At 11:45 PM 10/29/2006, you wrote:
>There appears to be very little traffic on this list.
>
>Have you cleaned your carburator lately???
>(Should be in the maintenance call outs........)
>
>Joe E
>N633Z @ BFI
>CH601XL 402 hours
>Jabiru 3300, Sensenich 64x49 wood prop
Message 2
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| Subject: | Re: Anybody There? |
--> Jabiru-List message posted by: xl <xl@prosody.org>
I've been flying 633Z since April 2004.
I don't have the hydraulic lifters so every 50 hours I check the valve
clearance. I check the head bolt + prop bolt torque at the same time.
The engine runs smooth + strong. I've taken a bunch of fellow 601XL
builders + prospective builders along and they like it too.
I had a couple of instances of rough running on takeoff and one during
a climb at 2000 feet. I grounded the plane after that one and didn't
make the Zenith Cooperstown CA (I think) flyin. I removed and cleaned
the carburetor that weekend. The slide position is controlled by vacuum.
And the rubber bellows provides the resistance and return force.
When I moved the slide with my finger I noted rough spots near idle and
near full throttle - where the slide spends most of its time. I used
carburetor cleaner liberally to remove the dark deposits. And the slide
moved freely in all positions.
I've flown about 5 hours since then and the engine runs more smoothly at
idle and at cruise. The contamination built up slowly in the carburetor
and I didn't notice the change - except for the stumbles, and I didn't
like those a bit. I am confident that I found the problem. I ruled out
other causes.
Now that I know what the symptoms of carburetor buildup are I'll clean
the carburetor when I notice them or every annual - which ever comes
first. I took another look at my copy of the Jabiru maintenance manual
and I see no mention of this critical maintenance item.
I tried the yahoo groups - yuk. If no one posts on this group, I'll miss
out. But, I don't like the yahoo groups site.
Joe E
633Z @ BFI
On Mon, 30 Oct 2006, Jim Crowder wrote:
> --> Jabiru-List message posted by: Jim Crowder <jimlc@att.net>
> Joe,
> I will not receive my engine until late February as per their
> acknowledgement. I was told when I ordered it that since they had
> added hydraulic valve lifters to the engine, there had been a surge
> in orders and a push out in delivery times. So no I have not cleaned
> my carburetor. What is the story behind this? How do you like your
> engine? How long have you had it? Is there anything else you can
> tell me? What can you tell me about its performance? Where are you
> located? I have had little owner feedback up until now and am
> starved for information.
> Jim Crowder
> Loveland, CO
>
> At 11:45 PM 10/29/2006, you wrote:
> >There appears to be very little traffic on this list.
> >Have you cleaned your carburator lately???
> >(Should be in the maintenance call outs........)
> >Joe E
> >N633Z @ BFI
> >CH601XL 402 hours
> >Jabiru 3300, Sensenich 64x49 wood prop
>
Message 3
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| Subject: | Re: Anybody There? |
--> Jabiru-List message posted by: Jim Crowder <jimlc@att.net>
Joe,
Thanks for the reply. I will remember your experience and stay
posted to the list.
Jim Crowder
Loveland, CO
At 11:58 PM 10/30/2006, you wrote:
>--> Jabiru-List message posted by: xl <xl@prosody.org>
>
>
>I've been flying 633Z since April 2004.
>
>I don't have the hydraulic lifters so every 50 hours I check the valve
>clearance. I check the head bolt + prop bolt torque at the same time.
>
>The engine runs smooth + strong. I've taken a bunch of fellow 601XL
>builders + prospective builders along and they like it too.
>
>I had a couple of instances of rough running on takeoff and one during
>a climb at 2000 feet. I grounded the plane after that one and didn't
>make the Zenith Cooperstown CA (I think) flyin. I removed and cleaned
>the carburetor that weekend. The slide position is controlled by vacuum.
>And the rubber bellows provides the resistance and return force.
>When I moved the slide with my finger I noted rough spots near idle and
>near full throttle - where the slide spends most of its time. I used
>carburetor cleaner liberally to remove the dark deposits. And the slide
>moved freely in all positions.
>
>I've flown about 5 hours since then and the engine runs more smoothly at
>idle and at cruise. The contamination built up slowly in the carburetor
>and I didn't notice the change - except for the stumbles, and I didn't
>like those a bit. I am confident that I found the problem. I ruled out
>other causes.
>
>Now that I know what the symptoms of carburetor buildup are I'll clean
>the carburetor when I notice them or every annual - which ever comes
>first. I took another look at my copy of the Jabiru maintenance manual
>and I see no mention of this critical maintenance item.
>
>I tried the yahoo groups - yuk. If no one posts on this group, I'll miss
>out. But, I don't like the yahoo groups site.
>
>Joe E
>633Z @ BFI
>
>
>On Mon, 30 Oct 2006, Jim Crowder wrote:
> > --> Jabiru-List message posted by: Jim Crowder <jimlc@att.net>
> > Joe,
> > I will not receive my engine until late February as per their
> > acknowledgement. I was told when I ordered it that since they had
> > added hydraulic valve lifters to the engine, there had been a surge
> > in orders and a push out in delivery times. So no I have not cleaned
> > my carburetor. What is the story behind this? How do you like your
> > engine? How long have you had it? Is there anything else you can
> > tell me? What can you tell me about its performance? Where are you
> > located? I have had little owner feedback up until now and am
> > starved for information.
> > Jim Crowder
> > Loveland, CO
> >
> > At 11:45 PM 10/29/2006, you wrote:
> > >There appears to be very little traffic on this list.
> > >Have you cleaned your carburator lately???
> > >(Should be in the maintenance call outs........)
> > >Joe E
> > >N633Z @ BFI
> > >CH601XL 402 hours
> > >Jabiru 3300, Sensenich 64x49 wood prop
> >
>
>
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