Exhaust system, Freedom 33

Archives
1

Posted by Frank (myslo@…>)

A few weeks ago I asked here if anyone ever had dealt with the
exhaust sytem, from the muffler on aft to the tailpipe.
I had gotten zero response, and also the factory had no information
for me. (what did they do with all their drawings when production
stopped, surely they did not discard them???)
Well the job is done now, as usual done by my wife and myself.

What happened was that one day not so long ago, when I turned on
the engine, there was no tailwater, just a lot of bilge water…

The usage of mild, galvanized steel for pipefittings in that system
was the culprit. One elbow had simply ceased to exist one fine
morning. (cheap, perforated hose clamps had all rotted away,
apparently quite some time ago)

I had indications of severe corrosion taking place somewhere in the
power train for a long time. An ugly rust stain, emanating from the
tailfitting, graced our transom for maybe the last two years, or
maybe even longer. There were an estimated 8000 engine-hours on
that system when it failed.

This will inevitably happen to all the boats with that kind of
installation. In my case, I had to start from scratch with no input.
This cost time and money and aggravation. So why dont we start an
archive, where we can accumulate collective experience data for all
to benefit from?

2

Posted by Alan Kusinitz (akusinitz@…>)

Thanks for the information. I saw your posting and since my F-33 has some wetness I’ve been trying to track down in that area I asked my yard to take a look ( the boats out of the water and not near my house) . They didn’t find anything obvious.
Some of us have initiated an association to do a number of things including technical archives and so on. More info is available on
http://groups.yahoo.com/group/FreedomOwnersGroup/ if you you’ld like to participate and get info on this as its just getting going.
Alan Kusinitz F-33 Hull #51

----- Original Message -----
From: Frank
To: freedomyachts2003@yahoogroups.com
Sent: Wednesday, March 02, 2005 4:46 PM
Subject: [freedomyachts2003] Exhaust system, Freedom 33
A few weeks ago I asked here if anyone ever had dealt with the exhaust sytem, from the muffler on aft to the tailpipe.I had gotten zero response, and also the factory had no information for me. (what did they do with all their drawings when production stopped, surely they did not discard them???)Well the job is done now, as usual done by my wife and myself. What happened was that one day not so long ago, when I turned on the engine, there was no tailwater, just a lot of bilge water…The usage of mild, galvanized steel for pipefittings in that system was the culprit. One elbow had simply ceased to exist one fine morning. (cheap, perforated hose clamps had all rotted away, apparently quite some time ago)I had indications of severe corrosion taking place somewhere in the power train for a long time. An ugly rust stain, emanating from the tailfitting, graced our transom for maybe the last two years, or maybe even longer. There were an estimated 8000 engine-hours on that system when it failed.This will inevitably happen to all the boats with that kind of installation. In my case, I had to start from scratch with no input.This cost time and money and aggravation. So why dont we start an archive, where we can accumulate collective experience data for all to benefit from?

3

Posted by Frank Minelli (myslo@…>)
Alan,

The wetness you are observing is probably due to the hoseclamps having ceased
to function, so there is slight leakage, which keeps that little shelf above the shaft permanently wet. I had observed that for at least the last two years.

Where the system will fail , totally, and all of a sudden, is in the ninety degree elbow, all the way aft. It is there that the water has the greatest impact and will have worn away the zinc the fastest, and thus corrosion having worked the longest. It is then only a matter of time, til the elbow lets go. When this happens, of course, you will have power only for minutes, since the exhaust fumes will quickly fill the interior.

If you have access to the clamp that holds the muffler in place (straight below where the water heater originally was installed) I would losen it, and give the muffler a few good pulls. if that elbow is gone, the hose will pull out. Better it happens under controlled conditions than having it fail when you need power the most.
Alan Kusinitz <akusinitz@…> wrote:

Thanks for the information. I saw your posting and since my F-33 has some wetness I’ve been trying to track down in that area I asked my yard to take a look ( the boats out of the water and not near my house) . They didn’t find anything obvious.
Some of us have initiated an association to do a number of things including technical archives and so on. More info is available on
http://groups.yahoo.com/group/FreedomOwnersGroup/ if you you’ld like to participate and get info on this as its just getting going.
Alan Kusinitz F-33 Hull #51

----- Original Message -----
From: Frank
To: freedomyachts2003@yahoogroups.com
Sent: Wednesday, March 02, 2005 4:46 PM
Subject: [freedomyachts2003] Exhaust system, Freedom 33
A few weeks ago I asked here if anyone ever had dealt with the exhaust sytem, from the muffler on aft to the tailpipe.I had gotten zero response, and also the factory had no information for me. (what did they do with all their drawings when production stopped, surely they did not discard them???)Well the job is done now, as usual done by my wife and myself. What happened was that one day not so long ago, when I turned on the engine, there was no tailwater, just a lot of bilge water…The usage of mild, galvanized steel for pipefittings in that system was the culprit. One elbow had simply ceased to exist one fine morning. (cheap, perforated hose clamps had all rotted away, apparently quite some time ago)I had indications of severe corrosion taking place somewhere in the power train for a long time. An ugly rust stain, emanating from the tailfitting, graced our
transom for maybe the last two years, or maybe even longer. There were an estimated 8000 engine-hours on that system when it failed.This will inevitably happen to all the boats with that kind of installation. In my case, I had to start from scratch with no input.This cost time and money and aggravation. So why dont we start an archive, where we can accumulate collective experience data for all to benefit from? __________________________________________________Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

4

Posted by Jerome Weinraub (zayde@…>)

A suggestion.Any marine welder will make up a cupro-nickel elbow,which will last as long as the boat.

----- Original Message -----
From: Frank Minelli
To: freedomyachts2003@yahoogroups.com
Sent: Saturday, March 05, 2005 9:23 AM
Subject: Re: [freedomyachts2003] Exhaust system, Freedom 33

Alan,

The wetness you are observing is probably due to the hoseclamps having ceased
to function, so there is slight leakage, which keeps that little shelf above the shaft permanently wet. I had observed that for at least the last two years.

Where the system will fail , totally, and all of a sudden, is in the ninety degree elbow, all the way aft. It is there that the water has the greatest impact and will have worn away the zinc the fastest, and thus corrosion having worked the longest. It is then only a matter of time, til the elbow lets go. When this happens, of course, you will have power only for minutes, since the exhaust fumes will quickly fill the interior.

If you have access to the clamp that holds the muffler in place (straight below where the water heater originally was installed) I would losen it, and give the muffler a few good pulls. if that elbow is gone, the hose will pull out. Better it happens under controlled conditions than having it fail when you need power the most.
Alan Kusinitz <akusinitz@…> wrote:

Thanks for the information. I saw your posting and since my F-33 has some wetness I’ve been trying to track down in that area I asked my yard to take a look ( the boats out of the water and not near my house) . They didn’t find anything obvious.
Some of us have initiated an association to do a number of things including technical archives and so on. More info is available on
http://groups.yahoo.com/group/FreedomOwnersGroup/ if you you’ld like to participate and get info on this as its just getting going.
Alan Kusinitz F-33 Hull #51

----- Original Message -----
From: Frank
To: freedomyachts2003@yahoogroups.com
Sent: Wednesday, March 02, 2005 4:46 PM
Subject: [freedomyachts2003] Exhaust system, Freedom 33
A few weeks ago I asked here if anyone ever had dealt with the exhaust sytem, from the muffler on aft to the tailpipe.I had gotten zero response, and also the factory had no information for me. (what did they do with all their drawings when production stopped, surely they did not discard them???)Well the job is done now, as usual done by my wife and myself. What happened was that one day not so long ago, when I turned on the engine, there was no tailwater, just a lot of bilge water…The usage of mild, galvanized steel for pipefittings in that system was the culprit. One elbow had simply ceased to exist one fine morning. (cheap, perforated hose clamps had all rotted away, apparently quite some time ago)I had indications of severe corrosion taking place somewhere in the power train for a long time. An ugly rust stain, emanating from the tailfitting, graced our transom for maybe the last two years, or maybe even longer. There were an estimated 8000 engine-hours on that system when it failed.This will inevitably happen to all the boats with that kind of installation. In my case, I had to start from scratch with no input.This cost time and money and aggravation. So why dont we start an archive, where we can accumulate collective experience data for all to benefit from?
__________________________________________________Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

5

Posted by Frank Minelli (myslo@…>)
True, Jerome.

Too bad Tillotson Pierson apparently did not know that when they built the boat. So, in their ignorance they used mild (probably galvanized) steel. The difficulty NOIW, is, obviously, acess .Jerome Weinraub <zayde@…> wrote:

A suggestion.Any marine welder will make up a cupro-nickel elbow,which will last as long as the boat.

----- Original Message -----
From: Frank Minelli
To: freedomyachts2003@yahoogroups.com
Sent: Saturday, March 05, 2005 9:23 AM
Subject: Re: [freedomyachts2003] Exhaust system, Freedom 33

Alan,

The wetness you are observing is probably due to the hoseclamps having ceased
to function, so there is slight leakage, which keeps that little shelf above the shaft permanently wet. I had observed that for at least the last two years.

Where the system will fail , totally, and all of a sudden, is in the ninety degree elbow, all the way aft. It is there that the water has the greatest impact and will have worn away the zinc the fastest, and thus corrosion having worked the longest. It is then only a matter of time, til the elbow lets go. When this happens, of course, you will have power only for minutes, since the exhaust fumes will quickly fill the interior.

If you have access to the clamp that holds the muffler in place (straight below where the water heater originally was installed) I would losen it, and give the muffler a few good pulls. if that elbow is gone, the hose will pull out. Better it happens under controlled conditions than having it fail when you need power the most.
Alan Kusinitz <akusinitz@…> wrote:

Thanks for the information. I saw your posting and since my F-33 has some wetness I’ve been trying to track down in that area I asked my yard to take a look ( the boats out of the water and not near my house) . They didn’t find anything obvious.
Some of us have initiated an association to do a number of things including technical archives and so on. More info is available on
http://groups.yahoo.com/group/FreedomOwnersGroup/ if you you’ld like to participate and get info on this as its just getting going.
Alan Kusinitz F-33 Hull #51

----- Original Message -----
From: Frank
To: freedomyachts2003@yahoogroups.com
Sent: Wednesday, March 02, 2005 4:46 PM
Subject: [freedomyachts2003] Exhaust system, Freedom 33
A few weeks ago I asked here if anyone ever had dealt with the exhaust sytem, from the muffler on aft to the tailpipe.I had gotten zero response, and also the factory had no information for me. (what did they do with all their drawings when production stopped, surely they did not discard them???)Well the job is done now, as usual done by my wife and myself. What happened was that one day not so long ago, when I turned on the engine, there was no tailwater, just a lot of bilge water…The usage of mild, galvanized steel for pipefittings in that system was the culprit. One elbow had simply ceased to exist one fine morning. (cheap, perforated hose clamps had all rotted away, apparently quite some time ago)I had indications of severe corrosion taking place somewhere in the power train for a long time. An ugly rust stain, emanating from the tailfitting, graced our
transom for maybe the last two years, or maybe even longer. There were an estimated 8000 engine-hours on that system when it failed.This will inevitably happen to all the boats with that kind of installation. In my case, I had to start from scratch with no input.This cost time and money and aggravation. So why dont we start an archive, where we can accumulate collective experience data for all to benefit from?
__________________________________________________Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com __________________________________________________Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com

6

Posted by Jerome Weinraub (zayde@…>)

My 1982 F33 has no rust from the exhaust. None the less,as I have the water heater out,I will be checking the elbow. BTW,if you are on Long Island,or even if not,Marine Manifold in Farmingdale will make up elbows,etc,on a custom basis.

----- Original Message -----
From: Frank Minelli
To: freedomyachts2003@yahoogroups.com
Sent: Monday, March 07, 2005 7:07 AM
Subject: Re: [freedomyachts2003] Exhaust system, Freedom 33

True, Jerome.

Too bad Tillotson Pierson apparently did not know that when they built the boat. So, in their ignorance they used mild (probably galvanized) steel. The difficulty NOIW, is, obviously, acess .Jerome Weinraub <zayde@…> wrote:

A suggestion.Any marine welder will make up a cupro-nickel elbow,which will last as long as the boat.

----- Original Message -----
From: Frank Minelli
To: freedomyachts2003@yahoogroups.com
Sent: Saturday, March 05, 2005 9:23 AM
Subject: Re: [freedomyachts2003] Exhaust system, Freedom 33

Alan,

The wetness you are observing is probably due to the hoseclamps having ceased
to function, so there is slight leakage, which keeps that little shelf above the shaft permanently wet. I had observed that for at least the last two years.

Where the system will fail , totally, and all of a sudden, is in the ninety degree elbow, all the way aft. It is there that the water has the greatest impact and will have worn away the zinc the fastest, and thus corrosion having worked the longest. It is then only a matter of time, til the elbow lets go. When this happens, of course, you will have power only for minutes, since the exhaust fumes will quickly fill the interior.

If you have access to the clamp that holds the muffler in place (straight below where the water heater originally was installed) I would losen it, and give the muffler a few good pulls. if that elbow is gone, the hose will pull out. Better it happens under controlled conditions than having it fail when you need power the most.
Alan Kusinitz <akusinitz@…> wrote:

Thanks for the information. I saw your posting and since my F-33 has some wetness I’ve been trying to track down in that area I asked my yard to take a look ( the boats out of the water and not near my house) . They didn’t find anything obvious.
Some of us have initiated an association to do a number of things including technical archives and so on. More info is available on
http://groups.yahoo.com/group/FreedomOwnersGroup/ if you you’ld like to participate and get info on this as its just getting going.
Alan Kusinitz F-33 Hull #51

----- Original Message -----
From: Frank
To: freedomyachts2003@yahoogroups.com
Sent: Wednesday, March 02, 2005 4:46 PM
Subject: [freedomyachts2003] Exhaust system, Freedom 33
A few weeks ago I asked here if anyone ever had dealt with the exhaust sytem, from the muffler on aft to the tailpipe.I had gotten zero response, and also the factory had no information for me. (what did they do with all their drawings when production stopped, surely they did not discard them???)Well the job is done now, as usual done by my wife and myself. What happened was that one day not so long ago, when I turned on the engine, there was no tailwater, just a lot of bilge water…The usage of mild, galvanized steel for pipefittings in that system was the culprit. One elbow had simply ceased to exist one fine morning. (cheap, perforated hose clamps had all rotted away, apparently quite some time ago)I had indications of severe corrosion taking place somewhere in the power train for a long time. An ugly rust stain, emanating from the tailfitting, graced our transom for maybe the last two years, or maybe even longer. There were an estimated 8000 engine-hours on that system when it failed.This will inevitably happen to all the boats with that kind of installation. In my case, I had to start from scratch with no input.This cost time and money and aggravation. So why dont we start an archive, where we can accumulate collective experience data for all to benefit from?
__________________________________________________Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com
__________________________________________________Do You Yahoo!?Tired of spam? Yahoo! Mail has the best spam protection around http://mail.yahoo.com