General information

[Frixos Contopoulos]

Hello,

The boats name is Windigo.
I have made several repairs and upgrades since I bought her in 2009. She was not in a very good condition.
I have also contacted Sparkman & Stephens and got some of the original drawings. Tried also to find contacts what happened to the factory in Sweden but no luck. I think it was taken over by Najad yachts!
I hope I will sail her some day to the Greek Islands.

Now I am working on fitting a new fridge and minor repairs on the rigging.

[Leo]

Hello Frixos,

Thank you for joining this muniscule group.

Our IW40 is Firefly (hull nr. 6) from Sweden but presently crusing on
the east coast of USA. We have had her since 1986 and lived onboard
almost all the time.

I guess you are greek but where do you live/ where is Windigo?

Feel free to ask if you have any specific IW40 questions or problems.

Regards,
Leo

[Frixos Contopoulos]

Hello Leo,

I have had her since 2009. Before she was sailing in the Baltic sea and came in the medeterranean sometime in early 2000.
She is now berthed in Cyprus-St Raphael marina in Limassol.

Since you mention it, I would like to ask how is your engine's exhaust system routed? Did you put any raiser before the water injection point?

Also how can I post some photos?

Frixos

[Leo]

Frixos,

Wow, I received your response 7 times from Google Groups; hope that
doesn't happen any more. Let me know if this happened to you too.

Our original Volvo MD21A engine has the standard cast iron exhaust elbow
(not a riser) with water injection. From there a hose down to floor
level, back to a "stainless/steel + large hose" muffler under the
cockpit (which can catch some water), then to the transom, with a loop
up as high as possible, then to a through hull (with no valve) on the
stbd topside, about 2/3 down. There is also a second small hose from the
exhaust elbow for extra water, that parallels the main hose and exits
the hull next to the main exhaust. Not sure how useful that is. We have
never had water back up into the engine.

On a related note, we have a vented loop (above the engine, half way to
the entrance hatch) on the cooling water hose between the oil cooler and
the water pump (suction side), to prevent water entering the exhaust via
the pump with engine stopped. The vent was originally a one way valve
which was unreliable (in fact when we bought the boat, the engine had
seawater in the cylinders, but no damage was done), so we replaced it
with a very small hose that goes over the aft cabin door to port, to
inside the hanging locker and overboard just below the toerail. This
draws air in when you stop the engine, but sometimes lets water out when
the engine is running (depending on the RPM and on whether the heat
exchanger is partially clogged with marine dirt; we use this to tell us
when it's time to clean the heat exchanger). When it spits out some
water, you know it is not blocked and working as it should.

I believe you can post photos by attaching them to your email.

Leo

[PerS]

Leo & Frixos

Regarding to the sea water flow through the engine I can add to what Leo
says, that the smaller tube from the exhaust elbow was added mainly because
of problems with the system when installed in motorboats. For our
installation it is not necessary and therefore I have blocked it when I
changed the heat exchanger a few years ago.
In the original installation there is a antisuction vent, which is a Penta
original, and not very good. I have made a tubing leading to a bottle that
helps me keep an eye of any suction on this side of the engine.
The important vent though I believe is on the exit side, on the water
injection into the exhaust elbow. I have therefore made a second vent loop
for the water injection and it is of a far better product.
A good tip is to visit "Vetus", a dutch specialist with anything marine
related issues. They have good web page with drawings to explain how to do
it.

I hope I have added some info about the engine cooling.

Keep asking, that�s what we hope to do, helping each other with tips.

Best regards
Per

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[Frixos]

Hello,

 

I have replaced the original engine with a Yanmar 4JH5E. The exhaust is 76mm and I had to modify the aft's cabin floor to accomodate the new waterlock which is a 9 litres capacity. Since the height between the exhaust and the waterlock inlet is not adequate enough I have to install a dry riser betwwen exhaust and water injection point. This will add extra safety to the system. The original design had always water left in the hose betwwen the waterlock and engine and there is always the danger of back flow to the engine.

 

Regards,

 

Frixos

On Sunday, August 18, 2013 5:22:24 PM UTC+3, PerS wrote:

Leo & Frixos

Regarding to the sea water flow through the engine I can add to what Leo
says, that the smaller tube from the exhaust elbow was added mainly because
of problems with the system when installed in motorboats. For our
installation it is not necessary and therefore I have blocked it when I
changed the heat exchanger a few years ago.
In the original installation there is a antisuction vent, which is a Penta
original, and not very good. I have made a tubing leading to a bottle that
helps me keep an eye of any suction on this side of the engine.
The important vent though I believe is on the exit side, on the water
injection into the exhaust elbow. I have therefore made a second vent loop
for the water injection and it is of a far better product.
A good tip is to visit "Vetus", a dutch specialist with anything marine
related issues. They have good web page with drawings to explain how to do
it.

I hope I have added some info about the engine cooling.

Keep asking, that�s what we hope to do, helping each other with tips.