Today's Message Index:
----------------------
1. 04:18 AM - Re: Cold Start (Tim Yoder)
2. 01:44 PM - Cold Start (BobbyPaulk@comcast.net)
3. 02:52 PM - Re: Cold Start (FLYaDIVE)
4. 05:41 PM - Re: Cold Start (j. davis)
Message 1
| INDEX | Back to Main INDEX |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
I recently drilled out my choke jet and it made a big difference, positive.
Tim
_____
From: owner-jabiruengine-list-server@matronics.com
[mailto:owner-jabiruengine-list-server@matronics.com] On Behalf Of FLYaDIVE
Sent: Friday, November 21, 2014 4:25 PM
Subject: Re: JabiruEngine-List: Cold Start
Bobby & John:
Thank you for the learning lesson guys.
I should have realized that there is no prime since there is a choke. I
guess the 1.2 mm hole will be considered more now.
I'm thinking this is to reduce the MP so you don't flood the engine. And
I'm with you Bobby... Those temps should not be a starting problem.
Barry
---
This email is free from viruses and malware because avast! Antivirus protection
is active.
http://www.avast.com
Message 2
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
List
Many thanks to Gary Aman for telling about setting the air gap between the magnets
and the pickup coils to .008.
I had been checking mine at every "conditional" with a .010 flat 1/2" wide feeler
gauge and getting a nice snug fit. What I was not aware of was the curvature
of the flywheel was causing the drag on the feeler gauge. I cut the feeler gauge
in half the long way and found out that the true gap was .012 at 3 places
and .014 at another.
I cut 2 pieces of a .008 thick feeler gauge and put a small section at each end
of the magnet air gap near each bolt. I held the coil snugly against the feeler
gauges and tightened the bolts.
After doing both coils we pushed the plane out and it started on the 3rd or 4th
blade from sitting cold all night. It was not as cold as it was last Sat (mid
40's at night but warmed up to 62 ). It has never started that easily even when
new. The .010 would probably be O.K. but I went with the .008 since the cold
weather is just starting.
We are going to do the same thing to the 2200 at the nearby airport when the owner
returns from vacation.
I will let you know how it comes out.
Bobby ( age 76 )
Zodiac 601 XL "B"
Jabiru 3300 S/N 1141
Sensenich 64" x 51" Prop
Bing Carb 260 Main & 290 Needle Jet
Status - Flying 235 hrs.
Message 3
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Good Job Bobby...
But, you do not use flat feeler gauges on curved surfaces - As you found
out. Get a few sizes of Gauge Wires... Wires as in cylindrical. You may
want to make up a set of Go / No-Go gauges.
BUT! GOOD JOB and solving the problem.
Good Job Gary!
Barry
On Sat, Nov 22, 2014 at 4:43 PM, <BobbyPaulk@comcast.net> wrote:
> List
> Many thanks to Gary Aman for telling about setting the air gap between
> the magnets and the pickup coils to .008.
> I had been checking mine at every "conditional" with a .010 flat 1/2" wide
> feeler gauge and getting a nice snug fit. What I was not aware of was the
> curvature of the flywheel was causing the drag on the feeler gauge. I cut
> the feeler gauge in half the long way and found out that the true gap was
> .012 at 3 places and .014 at another.
> I cut 2 pieces of a .008 thick feeler gauge and put a small section at
> each end of the magnet air gap near each bolt. I held the coil snugly
> against the feeler gauges and tightened the bolts.
> After doing both coils we pushed the plane out and it started on the 3rd
> or 4th blade from sitting cold all night. It was not as cold as it was last
> Sat (mid 40's at night but warmed up to 62 ). It has never started that
> easily even when new. The .010 would probably be O.K. but I went with the
> .008 since the cold weather is just starting.
> We are going to do the same thing to the 2200 at the nearby airport when
> the owner returns from vacation.
> I will let you know how it comes out.
>
>
> Bobby ( age 76 )
> Zodiac 601 XL "B"
> Jabiru 3300 S/N 1141
> Sensenich 64" x 51" Prop
> Bing Carb 260 Main & 290 Needle Jet
> Status - Flying 235 hrs.
>
> *
>
>
> *
>
>
Message 4
| INDEX | Back to Main INDEX |
| PREVIOUS | Skip to PREVIOUS Message |
| NEXT | Skip to NEXT Message |
| LIST | Reply to LIST Regarding this Message |
| SENDER | Reply to SENDER Regarding this Message |
|
Nothing wrong with using a flat (but flexible) feeler gauge. Here's what
works for me: get yourself a *brass* .010 feeler gauge (or shim stock).
Makes no difference how wide it is, about 1/2" is good, and it needs to be
long enough to bridge the two coil posts. Loosen the coil hold-down screws,
lift up the coil and place the brass strip between the coil arms and the
flywheel magnets. The coil will stick itself to the magnets, with the strip
in between. Tighten up the screws and work the brass strip out. Voila,
perfectly set .010" gap. Repeat for the other coil.
On 22 November 2014 at 17:51, FLYaDIVE <flyadive@gmail.com> wrote:
> Good Job Bobby...
>
> But, you do not use flat feeler gauges on curved surfaces - As you found
> out. Get a few sizes of Gauge Wires... Wires as in cylindrical. You may
> want to make up a set of Go / No-Go gauges.
>
> BUT! GOOD JOB and solving the problem.
>
> Good Job Gary!
>
> Barry
>
> On Sat, Nov 22, 2014 at 4:43 PM, <BobbyPaulk@comcast.net> wrote:
>
>> List
>> Many thanks to Gary Aman for telling about setting the air gap between
>> the magnets and the pickup coils to .008.
>> I had been checking mine at every "conditional" with a .010 flat 1/2"
>> wide feeler gauge and getting a nice snug fit. What I was not aware of was
>> the curvature of the flywheel was causing the drag on the feeler gauge. I
>> cut the feeler gauge in half the long way and found out that the true gap
>> was .012 at 3 places and .014 at another.
>> I cut 2 pieces of a .008 thick feeler gauge and put a small section at
>> each end of the magnet air gap near each bolt. I held the coil snugly
>> against the feeler gauges and tightened the bolts.
>> After doing both coils we pushed the plane out and it started on the 3rd
>> or 4th blade from sitting cold all night. It was not as cold as it was last
>> Sat (mid 40's at night but warmed up to 62 ). It has never started that
>> easily even when new. The .010 would probably be O.K. but I went with the
>> .008 since the cold weather is just starting.
>> We are going to do the same thing to the 2200 at the nearby airport when
>> the owner returns from vacation.
>> I will let you know how it comes out.
>>
>>
>> Bobby ( age 76 )
>> Zodiac 601 XL "B"
>> Jabiru 3300 S/N 1141
>> Sensenich 64" x 51" Prop
>> Bing Carb 260 Main & 290 Needle Jet
>> Status - Flying 235 hrs.
>>
>> *
>>
>> _blank">www.aeroelectric.com <http://www.aeroelectric.com>
>> .com" target="_blank">www.buildersbooks.com <http://www.buildersbooks.com>
>> ="_blank">www.homebuilthelp.com <http://www.homebuilthelp.com>
>> ="_blank">www.mypilotstore.com <http://www.mypilotstore.com>
>> ank">www.mrrace.com <http://www.mrrace.com>
>> _blank">http://www.matronics.com/contribution <http://www.matronics.com/contribution>
>> ist" target="_blank">http://www.matronics.com/Navigator?JabiruEngine-List <http://www.matronics.com/Navigator?JabiruEngine-List>
>> tp://forums.matronics.com <http://forums.matronics.com>
>>
>> *
>>
>>
> *
>
>
> *
>
>
--
Regards, J.
-----------------------------
J. Davis,
- Zenith STOL CH750 C-FJNJ: Jab 3300, Whilrwind GA prop, AeroCarb
- Sonex #325 (ex)C-FJNJ, Jab 3300a, Prince P-Tip, Aerocarb
- former C-IGGY CH701 owner/builder
- see these and more at http://cleco.ca
Other Matronics Email List Services
These Email List Services are sponsored solely by Matronics and through the generous Contributions of its members.
-- Please support this service by making your Contribution today! --
|