[Rhodes22-list] Extension bar use
Michael D. Weisner
mweisner at ebsmed.com
Thu Oct 2 13:58:43 EDT 2008
Caesar,
You are quite right about the pipe being submerged. It will not generally
be harmed by the water (maybe if it is salt water it might be different) as
long as the engine is able to continue running and it is not for a long
period.
Many modern exhaust systems rely on a free-flowing exhaust for proper engine
parameter measurements such as made by oxygen sensors. If appreciable back
pressure is introduced by submersion, the partial pressure measurements may
be incorrect and may alter fuel/air ratio or cause poor engine performance.
This may cause the engine to stall or reduce power, which could be a problem
when pulling the boat out of the water.
Assuming that the exhaust immersion does not cause any of these problems,
one must be aware that the lowest point may not be the exhaust system but
rather the rear differential. Immersion of the "rear" may cause water to
enter the housing through poor seals or vents and contaminate the lubricant,
leading to premature bearing or gear failure.
In addition, there are sensors on most SUVs to monitor wheel speed for ABS
brake and vehicle stabilization systems. While they are water resistant,
many are not designed to be immersed in water and may fail if done.
To avoid expensive repairs, I would avoid going deeper than getting the
tires wet. If the water is up to the rim, you are far enough in. Be aware
that in some locales, tides and wave actions can cause the water to rise to
unsafe levels during the recovery process, even if the vehicle was "safe" at
the start of the task. Use the extension bar and be aware of the tides.
Mike
s/v Shanghai'd Summer ('81)
Nissequogue River, NY
From: "Caesar Paul" <caesarpaul01 at yahoo.com>Sent: Thursday, October 02, 2008
12:47 PM
Rummy,
Good question.
Now you got me thinking, I guess the pressure of the water in the exhaust
pipe would have to be greater then the pressure of the exhaust gas coming
out of the pipe to cause any problems, like choking the engine and causing
it to stall.
What has been your experience in submerging an exhaust pipe while launching
a boat, as you can see I've never ventured that deep?
Caesar
Caesar
--- On Wed, 10/1/08, R22RumRunner at aol.com <R22RumRunner at aol.com> wrote:
From: R22RumRunner at aol.com <R22RumRunner at aol.com>
Subject: Re: [Rhodes22-list] Extension bar use
To: rhodes22-list at rhodes22.org
Date: Wednesday, October 1, 2008, 2:54 PM
Caesar,
Why would you have to stop when the exhaust pipe starts to belch?
Rummy
In a message dated 10/1/2008 4:39:54 P.M. Eastern Daylight Time,
caesarpaul01 at yahoo.com writes:
Ben,
I have had my boat for about 4 months now and have launched and retrieved
weekly for the first two months. I have launched without, and with the
extension. It has been easier for me to extend the bar after I unhitch
from
the tow
vehicle.
Both the angle of the ramp, and the height of the tow vehicle dictate
whether you use the extender or not. I have been able to launch on all my
ramps
without using the extension bar. The rear wheels got wet, and, regardless
of
your vehicle, you would need to stop when your exhaust pipe begins to
belch.
Caesar
Gentle Breeze
1984 Recycled 2008
--- On Wed, 10/1/08, ben <benonvelvetelvis at theskinnyonbenny.com> wrote:
From: ben <benonvelvetelvis at theskinnyonbenny.com>
Subject: Re: [Rhodes22-list] Extension bar use
To: "'The Rhodes 22 Email List'"
<rhodes22-list at rhodes22.org>
Date: Wednesday, October 1, 2008, 11:07 AM
Do most of you find that you need the extension bar? My normal launch gets
deep enough fast enough that I don't need to use it at all.
Ben S.
R22 Velvet Elvis
-----Original Message-----
From: rhodes22-list-bounces at rhodes22.org
[mailto:rhodes22-list-bounces at rhodes22.org] On Behalf Of Michael D. Weisner
Sent: Wednesday, October 01, 2008 10:57 AM
To: The Rhodes 22 Email List
Subject: Re: [Rhodes22-list] Extension bar use
Andrew,
I have played the same game of "catch the pin" many times. Proper
adjustment of the trailer height using the trailer jack and lots of fresh
grease on the tongue extension make the job much easier, whether the car is
used or you do it by hand. My new extension tongue is slightly longer (1
foot) and has a stop fixed to the end to prevent pulling it all the way
out,
just in case.
We used to launch or retrieve in 30-45 minutes with a trained crew of 3-4.
Now, my wife and I are able to accomplish the task in about an hour or so,
including rigging while on the water. I found that I spent too much time
climbing up and down the boat while still on the trailer to rig. We just
extend the tongue, launch, VERIFY NO LEAKS, motor out, drop the hook, step
the mast and rig in the river. Now we have no overheads to worry about
while on the trailer.
If you require help, we are in Kings Park, probably not that far from you.
Mike
s/v Shanghai'd Summer ('81)
Nissequogue River, NY
From: "Andrew Collins" <sailingvesselcarmen at gmail.com>Sent:
Wednesday,
October 01, 2008 11:35 AM
> Wally
>
> The extension bar is a real help in launching and retrieving, the only
> catch
> is sliding it in and out and lining up the fast-pin holes while you are
> driving. This is especially aggravating if you are alone. The easy
> solution
> we came up with is to pull the extension bar out by hand, re-hitch it to
> the
> tow vehicle and proceed to launch, or vice versa.
>
> A little game has evolved out of this as well if there is a driver and a
> fast-pin inserter: slowly drive forward pulling the extension bar out
> (with
> the trailer chocked!), fast-pin guy yelling 'slow', SLOWER",
GOT IT! as
> the
> holes appear. As with all things, practice makes perfect. Pretty soon
> you'll
> know exactly where that hole is inside the front support sleeve.
>
> Too many of us launch and retrieve alone, and one gets pretty good at a
> lot
> of things. It goes much faster with an extra pair of hands, and then
there
> is a good reason to crack a cold one.
>
> Andrew
> s/v Carmen
>
> On Wed, Oct 1, 2008 at 10:49 AM, Joe Babb <joe.babb at comcast.net>
wrote:
>
>> Hi Wally,
>> Sharon and I trailer sail our Rhodes 22. We find that extending the
>> trailer tongue to launch and retrieve is the most
>> aggravating thing about it. Otherwise things go quite smoothly with
the
>> mast hoist system. It just takes time and patience.
>> It takes us about 1.5 to 2 hours to rig and launch. That's from
parking
>> at the launch ramp to parking the truck and
>> trailer. The best tip is to minimize the amount of time you spend
>> getting on and off the boat through planning your
>> work. We tow with a Chevy 2500 Silverado. We usually get 16 -18 mpg
on
>> the highway without towing. On the way
>> back across the Smoky Mountains from Edenton we got about 12 mpg
average
>> towing the Rhodes.
>> Going up steep hills usually slows us down to 40 or 45. We found the
>> boat tows well at 55 mph.
>> So far, I've always just jumped in the water and led Harmony
onto
the
>> trailer. The trailer extension is a pain, but also
>> very nice as it gets you far enough into the water to avoid having
to
>> use muscle power to launch.
>> Hope this helps.
>> Joe
>>
>> __________________________________________________
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