" Leavens do a GREAT job on rebuilding - and are a class act for
warranty work !!! I have a Leavens overhauled O-320-E2D ... :-)"
................And it has first run overhauled cylinders on it....so Mike
don't blow the money on new as per Bob's previous message about the glider
club.
The average rec pilot flys an average of about 45 hours a year. Some make
it to a 100 and most about 25. If you are lucky enough to be the 100 hour
fella those cylinders should serve you well for the next 20 years.
Wide deck vs Narrow deck is right up there with the arguement for main
wheels toed in or toed out !! Both have advantages...both have
disadvantages and should not detour you from your goal of an available
engine. Wide decks actually have more cracking problems on the case than
narrows...narrows have more cylinder base cracking than wides. I personally
would rather fork out for the cylinder...than a case and complete rebuild!
The engine in my own Rebel is an O-320-B2A that I, much to Leavens dismay,
had overhauled as a 150 HP engine...so it became a -C2A. My reasoning was
similar to yours Mike...I was afraid of finding fuel on the water if the
need arose to use marinas. The thing is now that most of them have premium
now for all the sea doos and there are lots of float bases out there that
have 100LL. Personally I do not even consider using auto fuel unless there
is no other choice. (It will also void your Leavens warrantee...so keep
that in mind!). My other thought was low compression 150 HP on the heavy
160HP crank/bearings would last me a life time without problems...and the
-B 160 HP engines also have cylinder hold down plates to spread the load on
the cylinder bases where as 150HP -A models don't. So if you go 150 the
plates will still stay, heavier bottom end and a bullet proof engine.
Decissions, decissions, decissions.....If you are going to run a metal
prop....I'd go 160HP.... anything else 150.
I've got to get back to the shop....I should be off fishing already!
Wayne
----- Original Message -----
From: "Bob Patterson" <
beep@sympatico.ca>
To: <
rebel-builders@dcsol.com>
Sent: Tuesday, May 09, 2006 11:58 AM
Subject: Re: [rebel-builders] CYLINDER HEADS
Hi Mike !
There are other concerns with 160 hp - I know some disagree,
but there is more vibration, and there is more load...
Wide & narrow decks can be had in dynafocal AND conical -
and you can change a conical into a dynafocal fairly easily.
Fuel IS a big concern, down the road - the new Kitplanes has an
article on fuel - hope to read it today ...
Leavens do a GREAT job on rebuilding - and are a class act for
warranty work !!! I have a Leavens overhauled O-320-E2D ... :-)
.....bobp
-------------------------------orig.-------------------------
On Tuesday 09 May 2006 02:54 pm, Jones, Michael wrote:
hi bob
would go wide deck but already have mount & rubbers for, so would have
to
try to sell them, easier to just go with narrow deck, engine is from
leavens and is 0-320-b3b, has heavy bearings stock, also told 160 hp
stock,
and if i want leavens says can get 168 hp from it, what do you think,
my concern about 160 hp is getting fuel for it
mike
-----Original Message-----
From:
mike.davis@dcsol.com [mailto:
mike.davis@dcsol.com]On Behalf Of
Bob Patterson
Sent: Tuesday, May 09, 2006 10:44 AM
To:
rebel-builders@dcsol.com
Subject: Re: [rebel-builders] CYLINDER HEADS
Hi Mike !
FWIW, we've not had good results with anything ECI ....
Superior cylinders & engines seem much better. They have incorporated
many improvements, like more metal around the exhaust ports, reducing
cracking, and greatly improved airflow in the intakes. The Superior
XP engines are very popular homebuilding choices these days - can be
had balanced, polished, and ported - for a bit extra $$$ !! :-)
This makes a very smooth engine with no rpm restriction ranges,
unlike a stock Lyc. - in the O-360 variation.
You mentioned narrow deck - FAR better to get a wide deck engine
if you can - they are sturdier, and less likely to have bearing and
seal problems.
If the old jugs have lots of hours, scrap them. History has shown
that they WILL crack, definitely, after about 4,000 hours ... or
sooner
!
The gliding club stopped overhauling cylinders years ago - it is
actually
cheaper to replace them with new Superior cylinders, as the overhauled
ones didn't last very long, and the labour costs for replacement, and
the
down time, more than ate up the savings !
.....bobp
-------------------------------orig.-------------------------
On Tuesday 09 May 2006 01:55 pm, Jones, Michael wrote:
millennium
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