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1. 06:44 PM - Re: Engine Choice (Gary Barnett)
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| Subject: | Re: Engine Choice |
Bobby
I have 300 hours on my 3300 Jab. I don't have cooling problems with the eng
ine in my Arion Lightning, average cyl. Temps are around 260 degrees F. Th
e engine can be temperamental and requires care in its use. In the first 10
0 hours I noticed lead and carbon buildup in the cylinders and compression v
ariations between 70 and 79 pounds. That looked like valve leakage and the e
ngine does has a history of that problem with short cylinder lives. To corre
ct the problem I started using o.4 oz. of Marvel Mystery Oil per gallon of f
uel. At the next annual compression check all cylinders were at 79 lbs. Th
e oil analysis was excellent and the bore scope exams were much cleaner. Gar
y Barnett
Sent from my iPad
> On Sep 15, 2015, at 6:13 AM, BobbyPaulk@comcast.net wrote:
>
> Bill
> A friend and I built ( 2 ) 601's side by side.
> His has a Continental O-200. When we started the engine break-in we adjust
ed his idle speed. We have not touched it since except for oil changes.
> My Jabiru 3300 has had high CHT's since day one. Can not get below 320 on r
ear cylinders. Carb jets were way off. I believe fuel distribution is still a
problem. Tilt the carb one way and 5 gets high temp the other way and 6 goe
s high. I believe the early owners of the Jabiru were doing the Beta testing
for the manufacturer.
> If you want to stay with the Jabiru design look at Camit Aero Engines. The
y manufactured the Jabiru for Jabiru for the last 18 to 20 years.
> They now have a rep in the USA. Their engine has all the updates ( includi
ng upgraded through bolts ) and some great new features like a 45 amp altern
ator. I have one on my Jab and it really is nice to be able to turn on all n
ecessary electric appliances and not have to worry about burning up the PM a
lternator.
> A friend had to top his 3300 at less than 200 hours. Most all the rings we
re stuck from carbon build up. Don't get one with the slow closing lifters.
> I still wish I went with the O-200 Cont.
>
> Bobby
>
> Bobby ( age 77 )
> Zodiac 601 XL "B"
> Jabiru 3300 S/N 1141
> Sensenich 64" x 51" Prop
> Bing Carb 260 Main & 290 Needle Jet
> Status - Flying 248 hrs.
>
> Do Not Archive
>
>
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>
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