Marine engine swap
Kille
´83 Chevy Pickup. Does anybody have experience on the characteristics of
these engines, like which carb / distributor combos work best, should I
change the intake manifold etc.? I´m especially interested in the carb, I
understand that in this 260 model it´s as large as 850 cfm. Should I go with
650 or 750 cfm for street use with this engine?
Thanks for any advice.
billk...@snotmail.com
Be aware that some marine engines rotate in the opposite direction from "normal"
--
To email me, change snot to hot
Bob La Londe
<billk...@snotmail.com> wrote in message
news:billkapaun-19...@la00-18.proaxis.net...
Extremely rare. Mostly because of price.
I believe there was an outboard at one time that would run in either rotation.
bmorey
><billk...@snotmail.com> wrote in message
>> Be aware that some marine engines rotate in the opposite direction from
>"normal"
>
>Extremely rare. Mostly because of price.
>
>I believe there was an outboard at one time that would run in either
>rotation.
>
Mercruiser still runs counter rotating outdrives with twins. Butt, you probably
already knew that. Now get back to the VB&G, there's nobody there. :-)
Bob La Londe
bmorey <dur...@aol.compile> wrote in message
news:20010819201625...@mb-ck.aol.com...
Yes sir. I was getting thirsty anyway.
Seriously counter rotating outdrives are much more common than counter rotating
engines. That is an easier gearing issue. No I was referring to what I believe
was an old Mercury Outboard (I think) that could be started in either rotation.
bmorey
>bmorey <dur...@aol.compile> wrote
>> Mercruiser still runs counter rotating outdrives with twins.
>
<whack>
> No I was referring to what I believe
>was an old Mercury Outboard (I think)
Yeh, I knew that.
that could be started in either
>rotation.
I can't comment on the dual rotational motor, as I'm not, (I don't think)
"that" old, <g> ...but I've been doin' a search tryin' to find out. Ya got my
curiosity goin' here.
<not doubting your word - JUST curious>
Bob La Londe
bmorey <dur...@aol.compile> wrote in message
I'm not swearing its true either. It was an old motor and I was a little guy at
the time.
Brian
>"Bob La Londe" <alarm_...@hotmail.com> wrote:
>
>>bmorey <dur...@aol.compile> wrote
>
>>> Mercruiser still runs counter rotating outdrives with twins.
>>
The counter rotating is done in the outdrive, not the engine. Outboards, on the other hand, can be
ordered counter rotating. I know Yamaha offers them and I'm sure others also offer them.
Brian..........
Kill filters - The Enema Of The Usenet !!!!!
bmorey
>>"Bob La Londe" <alarm_...@hotmail.com> wrote:
>>
>>>bmorey <dur...@aol.compile> wrote
>>
>>>> Mercruiser still runs counter rotating outdrives with twins.
>>>
>
>The counter rotating is done in the outdrive, not the engine.
That's what I said. <g>
Outboards, on
>the other hand, can be
>ordered counter rotating.
That's what Bob sez.
I know Yamaha offers them and I'm sure others
>also offer them.
Thanks, I'll be checkin' them out. Not that I need one. It's just the curiosity
that Bob brought out.
Brian
>"Brian" <Don't_Sp...@worldnet.att.net> wrote:
>
>>>"Bob La Londe" <alarm_...@hotmail.com> wrote:
>>>
>>>>bmorey <dur...@aol.compile> wrote
>>>
>>>>> Mercruiser still runs counter rotating outdrives with twins.
>>>>
>>
>>The counter rotating is done in the outdrive, not the engine.
>
>Outboards, on
>>the other hand, can be
>>ordered counter rotating.
>
>I know Yamaha offers them and I'm sure others
>>also offer them.
>
>Thanks, I'll be checkin' them out. Not that I need one. It's just the curiosity
>that Bob brought out.
Well, I'm sure that if Yamaha has them Merc and Evenrude must also offer counter rotating engines.
Yamaha's reasoning for counter rotating outboard engines (instead of doing it through gearing) is so
that under heavy throttle the steering doesn't torque. I/O's on the other hand are hard mounted
and the torque is horizontal and not vertical and will not affect steering..... YMMV !!!!!
maynard technologies
Second, you should keep in mind that marine engines are designed to operate
at 150 to 160F. They have an infinite radiator to keep them cool.
Overheating may be a problem. If you are after hp, best to by a rebuilt 350
and hop it up.
"Kille" <ki...@vituttaa.net> wrote in message
news:9lol10$71s$1...@news.kolumbus.fi...
Brian
>On my yacht the "engines" turn in opposite directions. Starboard is counter.
My buddies early 70's - 48 foot yacht had twin 350's, straight inboard. Both 350's turned same
direction. It had "Paragon" cast iron transmissions that were clearly labeled port and starboard.
Motors turned in the same direction, screws turned in opposite directions. YMMV.........
Bob La Londe
Brian <Don't_Sp...@worldnet.att.net> wrote in message
news:6333otoq6kjl3aga0...@4ax.com...
I wasn't talking about ordering a counter rotating engine. Those definitely do
exist, or counter rotating outdrives, which also exist. I was talking about an
old (pretty sure it was a Mercury) outboard that could be started in either
rotation.
Brian
>I wasn't talking about ordering a counter rotating engine. Those definitely do
>exist, or counter rotating outdrives, which also exist. I was talking about an
>old (pretty sure it was a Mercury) outboard that could be started in either
>rotation.
>
I thought most 2 stroke engines could be started in either direction. I had a home made go kart
when I was a kid with a West Bend 2 stroke engine that sometimes kicked and started backwards. What
a suprise the first time it happened and I backed into my mothers car :-)
DollarBill
I recall hearing some old boater guys talking about Mercury's "dock smasher"
outboards. If you were motoring along in forward and you needed to grab
reverse, it was necessary to shut down then restart in reverse. Not sure of
the engineering though.
Bob La Londe
DollarBill <nospamb...@nospamterranova.net> wrote in message
news:E5xg7.13360$4b5.3...@news6.giganews.com...
Tony M. Kimmell
>do
>exist, or counter rotating outdrives, which also exist. I was talking about
>an
>old (pretty sure it was a Mercury) outboard that could be started in either
>rotation.
ANY 2-cycle engine can be started in either direction...
Tony Kimmell
Normal, IL
"Injection is nice, but I'd rather be BLOWN"
90 Dodge 4x4 diesel
90 Buick Skylark
70 Chevy C-20
Alex Pitschmann
You are right about starting in the opposite direction.
My friend had one that he got off some old junk boat. They did this because
they didn't have a transmission (other than the ability to put it into
neutral)
The engine was shut off and restarted in the opposite direction for reverse.
Alex