Hi ALL. Question 983...I have two fresh air or exhaust openings on the back deck of the boat. One hole was ducted into a 3 x 5 flat fiber glass duct, laid on the bottom of the hull. Does anyone know if this was factory installed or if someone might have added this at sometime in it’s boat life? I want to cut this off the floor and go PVC, or S.S. pipe, hold it up under the cockpit deck,, get it out of the way and keep water from ever running into the engine compartment. Any ideas on this one? Please advise. Larry Sent from Windows Mail
Vent System:
- Thread starter lewills30
- Start date
Larry, those vents are factory
installed as best I can remember. I do not have the Vega Booklet
here at home , air is supposed to come through those vents tavel
along the hull below the water line. This is to cool the air from
the cooler water the boat is in. I think that cooler air is
supposed to be pulled up through vents and up through the mast.
They claimed the cabin stayed 2 to 3 degrees cooler than the
outside air. Mine has been changed. I am thinking this winter I
may put it back as original. If the temperature is 95deg a
difference of a few degrees could make the cabin more livable??
They say a tree drops air a few degrees cooler than the
surrounding air and it feels pretty good to step under a tree on a
hot day. . Doug
--
:
installed as best I can remember. I do not have the Vega Booklet
here at home , air is supposed to come through those vents tavel
along the hull below the water line. This is to cool the air from
the cooler water the boat is in. I think that cooler air is
supposed to be pulled up through vents and up through the mast.
They claimed the cabin stayed 2 to 3 degrees cooler than the
outside air. Mine has been changed. I am thinking this winter I
may put it back as original. If the temperature is 95deg a
difference of a few degrees could make the cabin more livable??
They say a tree drops air a few degrees cooler than the
surrounding air and it feels pretty good to step under a tree on a
hot day. . Doug
--
Hi Doug you are right the ventilators on the stern are part of the original equipment. The Mark 1 Vegas were petrol driven and they had one pipe with an electric extractor fan in it leading to the bilge. The idea was that you ran the fan for a few minutes before starting the engine to dispel any gases or vapours from the bilge. The Mark 2 Vegas have a second ventilator without a fan which ran down to the engine compartment to provide an air supply to the Diesel engines now fitted.The air supply for ventilation enters through a fitting at the forward end of the cockpit on the port side. This goes into a duct under the stove area and the portside bunk in the main cabin. The air cools as it travels through this duct and passes into the forecabin by the oilskin locker. The hollow mast then takes over by
acting as an exhaust for the by now warmed air. To make it work properly the fitting in the cockpit must be open and the cabin hatches closed, and of course the mast must be unobstructed.It does make a difference in our excuse for a summer but I don't know how it copes in hotter climes. Regards Mike
acting as an exhaust for the by now warmed air. To make it work properly the fitting in the cockpit must be open and the cabin hatches closed, and of course the mast must be unobstructed.It does make a difference in our excuse for a summer but I don't know how it copes in hotter climes. Regards Mike
Hi Mike
my diesel seems happy enough to just draw air in through the air
filter from the surrounding air in the engine compartment.
Presumably a slight diesel smell is the price paid for this?
Is there any other issue caused by not using the vent pipe from the
vent on the afterdeck?
All the best
John
V1447 Breakaway
On 10/10/13 16:51, MICHAEL FREEMAN
wrote:
my diesel seems happy enough to just draw air in through the air
filter from the surrounding air in the engine compartment.
Presumably a slight diesel smell is the price paid for this?
Is there any other issue caused by not using the vent pipe from the
vent on the afterdeck?
All the best
John
V1447 Breakaway
On 10/10/13 16:51, MICHAEL FREEMAN
wrote:
Hi John - It depends on your engine compartment, many people have surrounded their engine with decent soundproofing and if they have blocked or removed the ventilation system I suppose it could restrict the air supply to the diesel. The air drawn in from the cabin and stern lockers probably keeps your engine going but I've always preferred to stick with the original design for the engine. I no longer have an extractor fan for the keel as I have a spirit stove which doesn't present a problem if it leaks into the bilge and I don't carry any petrol on board.regards Mike
Hello Mike,
Thanks for the clear info on the ventilation system!
I have a series III Vega and and her ventilation is exactly as you describe.
But there is one detail, also mentioned in the Vega Handbook that I do not understand:
The hollow mast then takes over by acting as an exhaust for the by now warmed air.
There is no communication between the cabin and the inside of the mast, so how can the hollow mast extract (?) warm air?
This yahoo group is great!!!
Fair winds!
marco baldan
Albin Vega 3339 Spray
Da: MICHAEL FREEMAN <mikeandv@...>A: "AlbinVega@yahoogroups.com" <AlbinVega@yahoogroups.com> Inviato: Giovedì 10 Ottobre 2013 18:51Oggetto: Re: [AlbinVega] Vent System:
Hi Doug you are right the ventilators on the stern are part of the original equipment. The Mark 1 Vegas were petrol driven and they had one pipe with an electric extractor fan in it leading to the bilge. The idea was that you ran the fan for a few minutes before starting the engine to dispel any gases or vapours from the bilge. The Mark 2 Vegas have a second ventilator without a fan which ran down to the engine compartment to provide an air supply to the Diesel engines now fitted. The air supply for ventilation enters through a fitting at the forward end of the cockpit on the port side. This goes into a duct under the stove area and the portside bunk in the main cabin. The air cools as it travels through this duct and passes into the forecabin by the oilskin locker. The hollow mast then takes over by
acting as an exhaust for the by now warmed air. To make it work properly the fitting in the cockpit must be open and the cabin hatches closed, and of course the mast must be unobstructed. It does make a difference in our excuse for a summer but I don&apos;t know how it copes in hotter climes. Regards Mike
Thanks for the clear info on the ventilation system!
I have a series III Vega and and her ventilation is exactly as you describe.
But there is one detail, also mentioned in the Vega Handbook that I do not understand:
The hollow mast then takes over by acting as an exhaust for the by now warmed air.
There is no communication between the cabin and the inside of the mast, so how can the hollow mast extract (?) warm air?
This yahoo group is great!!!
Fair winds!
marco baldan
Albin Vega 3339 Spray
Da: MICHAEL FREEMAN <mikeandv@...>A: "AlbinVega@yahoogroups.com" <AlbinVega@yahoogroups.com> Inviato: Giovedì 10 Ottobre 2013 18:51Oggetto: Re: [AlbinVega] Vent System:
Hi Doug you are right the ventilators on the stern are part of the original equipment. The Mark 1 Vegas were petrol driven and they had one pipe with an electric extractor fan in it leading to the bilge. The idea was that you ran the fan for a few minutes before starting the engine to dispel any gases or vapours from the bilge. The Mark 2 Vegas have a second ventilator without a fan which ran down to the engine compartment to provide an air supply to the Diesel engines now fitted. The air supply for ventilation enters through a fitting at the forward end of the cockpit on the port side. This goes into a duct under the stove area and the portside bunk in the main cabin. The air cools as it travels through this duct and passes into the forecabin by the oilskin locker. The hollow mast then takes over by
acting as an exhaust for the by now warmed air. To make it work properly the fitting in the cockpit must be open and the cabin hatches closed, and of course the mast must be unobstructed. It does make a difference in our excuse for a summer but I don&apos;t know how it copes in hotter climes. Regards Mike
Hi Mike,
I suppose I'm uneasy about drawing air into the engine via the intake on the afterdeck.
Even with a mushroom vent will not some water enter in heavy weather?
And then accumulate in the lowest part of the vent pipe?
All the best,
John
I suppose I'm uneasy about drawing air into the engine via the intake on the afterdeck.
Even with a mushroom vent will not some water enter in heavy weather?
And then accumulate in the lowest part of the vent pipe?
All the best,
John
Hi Marco - The beam holding up the mast ( between the main cabin and forecabin) is hollow and there are a series of holes drilled in it to allow the hot air to rise. There is a small plywood plate on the beam directly below the mast you remove this to get at the wiring for the mast lights. If you remove this plate (2 screws) you will see how the air gets up the mast.Mike
Hi John - I see your point but in very heavy weather water can get in a variety of ways. I've not yet been pooped but I have had a wave fill the cockpit once on a cross channel trip to Cherbourg. A fair amount of water slopped out of the cockpit but the majority left by the cockpit drains which worked very well. My crew got wet but the boat ploughed on as if nothing had happened.All the bestMike
I have a vent in the cabin top in the
head and one in the main cabin. I guess they likely interfere
with the mast drawing air through the boat. OF course I could
paint the mast black and that would heat the air and cause it to
rise in the mast and draw from the cabin
The main reason I want to put mine back as original is that I am
getting some mold here and their in the cabin and a little better
ventilation might help that. Doug
--
:
head and one in the main cabin. I guess they likely interfere
with the mast drawing air through the boat. OF course I could
paint the mast black and that would heat the air and cause it to
rise in the mast and draw from the cabin
The main reason I want to put mine back as original is that I am
getting some mold here and their in the cabin and a little better
ventilation might help that. Doug
--
If the air enters the mast, how does it exit? Thanks.To: AlbinVega@yahoogroups.comFrom: mikeandv@...Date: Fri, 11 Oct 2013 06:58:09 +0100Subject: Re: [AlbinVega] Vent System:
Hi John - It depends on your engine compartment, many people have surrounded their engine with decent soundproofing and if they have blocked or removed the ventilation system I suppose it could restrict the air supply to the diesel. The air drawn in from the cabin and stern lockers probably keeps your engine going but I've always preferred to stick with the original design for the engine. I no longer have an extractor fan for the keel as I have a spirit stove which doesn't present a problem if it leaks into the bilge and I don't carry any petrol on board.regards Mike
Hi John - It depends on your engine compartment, many people have surrounded their engine with decent soundproofing and if they have blocked or removed the ventilation system I suppose it could restrict the air supply to the diesel. The air drawn in from the cabin and stern lockers probably keeps your engine going but I've always preferred to stick with the original design for the engine. I no longer have an extractor fan for the keel as I have a spirit stove which doesn't present a problem if it leaks into the bilge and I don't carry any petrol on board.regards Mike
Duh!!! gotcha, thanks.....I need to add a anchor lite to the top of the mast, how have some of you handled the mounting and putting the wires through the mast?To: AlbinVega@yahoogroups.comFrom: mikeandv@...Date: Sat, 12 Oct 2013 08:13:20 +0100Subject: Re: [AlbinVega] Vent System:
Through the pulley holes at the top of the mast
Through the pulley holes at the top of the mast
At the access hole in the beam under the mast it should be possible to disconnect one of the masthead wires. Attach a light line to the end of the wire and send someone of low weight upto the top of the mast in a bosuns chair gently pull the wire up the mast with mousing line attached pull enough line up through the mast so the wire can be lowered back down the mast and be reconnected. You now have a line from top to bottom of the mast use this to pull the anchor light wire up.If you try to drop a line down the mast you will find that the various rivets and winch attachments protruding on the inside of the mast will catch the line and prevent it falling to the bottom. Hope this helps.Mike
I have a series I Vega #169. It has a steaming/foredeck light halfway up the front of the mast. I'm nor sure I have a line to the top of the mast. I guess a trip to the top of the mast is in my future. Is there a pre-drilled hole for wires at the top of the mast?To: AlbinVega@yahoogroups.comFrom: mikeandv@...Date: Sat, 12 Oct 2013 22:13:32 +0100Subject: Re: [AlbinVega] Vent System:
At the access hole in the beam under the mast it should be possible to disconnect one of the masthead wires. Attach a light line to the end of the wire and send someone of low weight upto the top of the mast in a bosuns chair gently pull the wire up the mast with mousing line attached pull enough line up through the mast so the wire can be lowered back down the mast and be reconnected. You now have a line from top to bottom of the mast use this to pull the anchor light wire up.If you try to drop a line down the mast you will find that the various rivets and winch attachments protruding on the inside of the mast will catch the line and prevent it falling to the bottom. Hope this helps.Mike
At the access hole in the beam under the mast it should be possible to disconnect one of the masthead wires. Attach a light line to the end of the wire and send someone of low weight upto the top of the mast in a bosuns chair gently pull the wire up the mast with mousing line attached pull enough line up through the mast so the wire can be lowered back down the mast and be reconnected. You now have a line from top to bottom of the mast use this to pull the anchor light wire up.If you try to drop a line down the mast you will find that the various rivets and winch attachments protruding on the inside of the mast will catch the line and prevent it falling to the bottom. Hope this helps.Mike
Some complain about noise of wires slapping inside mast.
Some put a wire tie every 2 foot or so and leave the tails on. The random tails keep wires from
contacting the inside of mast.
gh
Some put a wire tie every 2 foot or so and leave the tails on. The random tails keep wires from
contacting the inside of mast.
gh
When I helped a friend with his mast we used a mast snake. I'm the inventor but you may use the system for a small royalty fee of 75,000 US dollars or 11 Euros. Bass fisherman use bullet shaped weights to fish rubber worms on the bottom of lakes. These weights have a hole through the center. Fishing line goes through the weight and gets tied to a hook. Worm goes on hook. I took about 10 of these weights and strung them together on a line with a loop on the aft end. Attach a messenger line to the loop. 1/8 inch or 2-3mm should do it. The weight goes down the mast. It's flexible like a snake, it has enough weight to carry the line down and the bullet shape takes it past obstructions. Probably should go through a hole drilled in the side of the mast instead of over the sheave.As far as using cable ties on the wires I used 4 ties put together as a square with the wires through the square. Pull the ties tight until you have a 4 legged spider with the wires going through it. Repeat every 18 inches or so. This will keep the wires centered in the mast. Walt, Lyric To: AlbinVega @...From: groundhogyh@...Date: Sat, 12 Oct 2013 15:04:19 -0700Subject: Re: [AlbinVega] Vent System:
Some complain about noise of wires slapping inside mast.
Some put a wire tie every 2 foot or so and leave the tails on. The random tails keep wires from
contacting the inside of mast.
gh
Some complain about noise of wires slapping inside mast.
Some put a wire tie every 2 foot or so and leave the tails on. The random tails keep wires from
contacting the inside of mast.
gh
I have my mass down right now, I was thinking of running a 3/4” or 1/2” PVC conduit up through the middle as a wire chase. That way I could use fish tape and pull new wires into the mass or make repairs . Larry Sent from Windows Mail From: groundhogSent: Saturday, October 12, 2013 3:04 PMTo: AlbinVega@yahoogroups.com
Some complain about noise of wires slapping inside mast.
Some put a wire tie every 2 foot or so and leave the tails on. The random tails keep wires from
contacting the inside of mast.
gh
Some complain about noise of wires slapping inside mast.
Some put a wire tie every 2 foot or so and leave the tails on. The random tails keep wires from
contacting the inside of mast.
gh
If I understand this air flow conversation, my mast is sealed off by the mounting plate for the mast. With the wires in the mast, it doesn’t seem an air flow would be much. Larry Sent from Windows Mail From: Bruce BergmanSent: Friday, October 11, 2013 2:38 PMTo: AlbinVega@yahoogroups.com
If the air enters the mast, how does it exit? Thanks.To: AlbinVega@yahoogroups.comFrom: mikeandv@...Date: Fri, 11 Oct 2013 06:58:09 +0100Subject: Re: [AlbinVega] Vent System:
Hi John - It depends on your engine compartment, many people have surrounded their engine with decent soundproofing and if they have blocked or removed the ventilation system I suppose it could restrict the air supply to the diesel. The air drawn in from the cabin and stern lockers probably keeps your engine going but I\'ve always preferred to stick with the original design for the engine. I no longer have an extractor fan for the keel as I have a spirit stove which doesn\'t present a problem if it leaks into the bilge and I don\'t carry any petrol on board.regards Mike
If the air enters the mast, how does it exit? Thanks.To: AlbinVega@yahoogroups.comFrom: mikeandv@...Date: Fri, 11 Oct 2013 06:58:09 +0100Subject: Re: [AlbinVega] Vent System:
Hi John - It depends on your engine compartment, many people have surrounded their engine with decent soundproofing and if they have blocked or removed the ventilation system I suppose it could restrict the air supply to the diesel. The air drawn in from the cabin and stern lockers probably keeps your engine going but I\'ve always preferred to stick with the original design for the engine. I no longer have an extractor fan for the keel as I have a spirit stove which doesn\'t present a problem if it leaks into the bilge and I don\'t carry any petrol on board.regards Mike