Motor angle in well

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Captain_frog
Inlägg: 19
Blev medlem: sön 14 sep 2014 12:37

Motor angle in well

Inlägg av Captain_frog » lör 01 nov 2014 21:39

Hello sailors

Now my boot is out of water for the winter and looking at the motor (in well) it looks some kind of weird! The shaft has an angle of about 15 degrees against vertical (it looks as if the propeller wants to overhaul the motor). Is it normal? Should the shaft not be vertical in the water, and if not... what is the reason?


Have look at this announce and you will see what I mean!
http://www.boot24.com/segelboot/segelya ... motor.html

Curious about any explanation

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maja
Moderator
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Blev medlem: lör 19 aug 2006 08:56

Re: Motor angle in well

Inlägg av maja » sön 02 nov 2014 09:40

It could be that the propeller has to go free from rudder movements.

For old 2-stroke engines without a built in motor oil container the transverse heel of the motor is not a problem. However, for 4-stroke engines, this may cause greater oil consumption and maybe also cause not sufficient lubrication. So a model equpped with an oil pressure pump, not relying on splash lubrication will be preferrable. Be sure to ask about this when you buy a new motor.
Marek, IF-båt SWE-829 "Ingela" från Lagunen i Malmö
Medlem i IF-båtförbundet sedan 1985
IF-båtägare sedan 1983

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IF1158
Inlägg: 245
Blev medlem: mån 28 aug 2006 10:45
Ort: Hässelby

Re: Motor angle in well

Inlägg av IF1158 » mån 03 nov 2014 17:41

This summer I tested to have my engine in the well.
I have a brand new Mercury 4ML.
My findings are these:
- it works ok with the engine in the well, no problem with water in the well
- it is necessary to tilt the engine so it dosen't chop the rudder.
- I needed to manufacture a kind of "collar" on top of the well to avoid cooling water inside the boat...
- I won a race with engine still in the well :lol:

Next year I will most definately remove the external engine mount.
I will also try an electrical engine, easier to stow away when it's not needed. But all the electric engines looks to big to fit...
Fredrik Ringblom

Captain_frog
Inlägg: 19
Blev medlem: sön 14 sep 2014 12:37

Re: Motor angle in well

Inlägg av Captain_frog » mån 03 nov 2014 20:55

The previous owner of my boot had 3 very good solutions.
He fixed a tube under the control water jet outlet to eject the water at the rear of the boot
He fixed two metal fittings on the 2 smal exhaust outlets in the upper part of the shaft (glued with some kind of metal cement) and fixed a double plastic tube to eject Idle exhaust fume at the rear of the boot.
He used the holes that were previouly holding the external motor support, so he did not have to make any new holes.
He mounted a remote control (gas and gear), so he could control the motor without having to open the back door.

If you are interested I'll send you some photos
IF1158 skrev:This summer I tested to have my engine in the well.
I have a brand new Mercury 4ML.
My findings are these:
- it works ok with the engine in the well, no problem with water in the well
- it is necessary to tilt the engine so it dosen't chop the rudder.
- I needed to manufacture a kind of "collar" on top of the well to avoid cooling water inside the boat...
- I won a race with engine still in the well :lol:

Next year I will most definately remove the external engine mount.
I will also try an electrical engine, easier to stow away when it's not needed. But all the electric engines looks to big to fit...

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Kajsa
Inlägg: 6
Blev medlem: tis 28 aug 2012 12:02
Ort: Malmö/Fiskebäckskil

Re: Motor angle in well

Inlägg av Kajsa » ons 05 nov 2014 14:04

captain_frog
I'd like to see pictures of this adjustments. Will you post, please?
/Kajsa
/Kajsa
IF 526 Tilda

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IF1158
Inlägg: 245
Blev medlem: mån 28 aug 2006 10:45
Ort: Hässelby

Re: Motor angle in well

Inlägg av IF1158 » ons 05 nov 2014 17:27

Please post photos here.
Sounds like a good solution.
Fredrik Ringblom

Captain_frog
Inlägg: 19
Blev medlem: sön 14 sep 2014 12:37

Re: Motor angle in well

Inlägg av Captain_frog » sön 09 nov 2014 22:20

Hej!

Here are some photos

You can see at the back of the boot (she is now in Berlin) the control jet water running (right) an the exhaust fume (left).

The control jet fitting is a garden hose fitting which has been widen to fit on the outlet (11 mm diameter) and is hold in place with a metal plate and a screw.

The 2 exhaust fittings have been glued with some kind of metal cement like this one (http://www.loctiteproducts.com/p/epxy_m ... ncrete.htm). They join in a single transparent plastic tube connected to the hull outlet.
Exhaust fumes are not very hot, most of it is expelled through the propeller, the upper exhaust is just for idle, when the pressure of exhaust gas is not sufficient to push it through water. Thus a normal plastic hose is OK.

I have head of a german sailor who joined the three tube together so there is only one outlet on the external hull for exhaust gas and cooling water. It might be worst testing.
Bilagor
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Re: Motor angle in well

Inlägg av Johan SWE-1870 » mån 10 nov 2014 18:17

There are two ways of uploading pictures: host them elsewhere and link to them or upload to the forum.
Read How to upload and show images in posts for instructions.
Johan Winberg, SWE 1870 InFinit

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