Thanks for the info Chris. It looks like 80 hp is the way to go on our older boats due to the Cdrive issues.

Regards,
Steve and Liz
Aloha SM72

 

Wise choice Steve..

JPG

On 25 Jun 2015, at 17:00, flyboyscd@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Thanks for the info Chris. It looks like 80 hp is the way to go on our older boats due to the Cdrive issues.

Regards,
Steve and Liz
Aloha SM72

 

Frankly, I am at a loss as to why a person would change an engine in the first place. We have the Perkins TMD 22A Turbo and it runs like a gem. I can still reach the hull speed of over 8 knots and I can still power into a 30 knot + head wind and still make way comfortably. The engine has proved to be very reliable and economical to run. If you put two identical Amel's side by side, one with a Perkins/Volva 80hp and one with a Yamnah 110hp and ran them flat out, I doubt if you would see any difference except a larger hole in your pocket.

It is my opinion one would be better of spending the money and giving your existing engine a full overhaul. The Perkins is a very good engine and if the maintenance is kept up, like any engine, it will provide many hours of service. I know I can get parts anywhere in the world so why bother?

Just my two bob's worth.

Kind Regards

Barry & Robyn

Tradewinds III SM #171

 

Hallo Hanspeter,

I have only own my SM2K since 2012, so my experience is limited.

I have the Volvo TMD 22 P (same as Perkins M80T) which is rated for 78HP at 4500 RPM

Until 2 months ago, I was only able to reach 2100 to 2200 rpm (which gives 50 HP).
If you are not familiar with SM not able to reach high RPM, search post on possible oversize propeller for the SM (at least for the ones with the Volvo).

Earlier this year I had the propeller rebuild, I can reach 2500 rpm (which is 56 HP).
Note that the maximum torque is at 2500 rpm.

Mostly I motor at 1600 rpm, which gives me 5 knots, and use less than 3.5 liter (less than 1 gallon) per hour.
Sometime I motor at 1800 rpm and I (think I) obtain 7 knots.
Every 10 hours, I increase the throttle to its max 2500 rpm then reduce to 2400 rpm for a few minutes to clean exhaust/turbo.
Personally I wish (for a sailing vessel) it was normally aspirated, as I had the turbo rebuilt in 2012 then changed in 2015.

If you want, I can post the TMD22P data.

Sincerely, Alexandre
SM2K #289 NIKIMAT
Grand Bahama, Bahamas.

--------------------------------------------
On Thu, 6/25/15, 'hanspeter.baettig@...' hanspeter.baettig@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: Re: [Amel Yacht Owners] Repower
To: "amelyachtowners@..." <amelyachtowners@...>
Date: Thursday, June 25, 2015, 5:44 PM


 









Question to all SM ownersWhats
the different between 80 hp and 110 hpMax Speed
for SM is ca 8.5 knIndependent how much power,
the power on the Prop is Important I have this
speed with clean  boat/Propeller with the Perkins 80 hp
Turbo (1990, 3000 h)HanspeterSM 16
Tamango 2Göcek, Tutkey

Von meinem iPhone gesendet
Am 25.06.2015 um 18:18 schrieb "Germain
Jean-Pierre jgermain@...
[amelyachtowners]" <amelyachtowners@...>:
















 






Wise choice Steve..
JPG


On
25 Jun 2015, at 17:00, flyboyscd@...
[amelyachtowners] <amelyachtowners@...>
wrote:
















 






Thanks for the info Chris. It looks like 80 hp is
the way to go on our older boats due to the Cdrive
issues.

Regards,
Steve and Liz
Aloha SM72



































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Wise choice Steve..

JPG

On 25 Jun 2015, at 17:00, flyboyscd@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Thanks for the info Chris. It looks like 80 hp is the way to go on our older boats due to the Cdrive issues.

Regards,
Steve and Liz
Aloha SM72

 

Since I seem to have started this repower thread, I'll tell you why we have decided to repower. As with any decision, I have multiple reasons that have influenced our choice.

Our Perkins Prima has 4200+ hours, and has had various issues in the year and a half we have owned the boat. Currently we have a overheating problem that we cant seem to completely cure. If I keep throwing money at it, we will probably eventually figure it out, but who knows. The wiring harness for the entire engine is old and brittle, and really needs to be replaced. The engine panel warnings are not working, the tach just went out, and a new panel is quite expensive. To rebuild the engine, fix all the other bits and pieces, is going to cost about 3/4 of the price of a new Yanmar. Part of the problem in the USA is the cost of parts and labor doing a rebuild.

We are about embark on a 10 year circumnavigation, and the thought of a reliable new engine with a warranty for 25% more $$$ than rebuilding an old one seems like a good deal to me. I also suspect when we sell the boat after our circumnavigation, we will get a much better price with a mid time Yanmar vs a 32 year old Perkins with 7000 hours.

I guess only time will tell if we are making the right choice, but I'm comfortable with it. Also, we should be back on the water in 2 or 3 weeks, but with a rebuild, we would probably loose most of the summer. In our case, we have spent the last year re-fitting the boat, are ready to go, and it is worth a few $$$ to not lose our summer of sailing.

Best Regards,

Steve and Liz Davis

Aloha SM72

Hauled out in St. Augustine, FL

On Thu, Jun 25, 2015 at 8:16 PM, seagasm@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Frankly, I am at a loss as to why a person would change an engine in the first place. We have the Perkins TMD 22A Turbo and it runs like a gem. I can still reach the hull speed of over 8 knots and I can still power into a 30 knot + head wind and still make way comfortably. The engine has proved to be very reliable and economical to run. If you put two identical Amel's side by side, one with a Perkins/Volva 80hp and one with a Yamnah 110hp and ran them flat out, I doubt if you would see any difference except a larger hole in your pocket.

It is my opinion one would be better of spending the money and giving your existing engine a full overhaul. The Perkins is a very good engine and if the maintenance is kept up, like any engine, it will provide many hours of service. I know I can get parts anywhere in the world so why bother?

Just my two bob's worth.

Kind Regards

Barry & Robyn

Tradewinds III SM #171

 

Hallo Hanspeter,

To me it is not clear why many owners with the Volvo TMD22P can only reach 2200 rpm. I had injectors rebuilt, heat exchanger cleaned, etc. everything check, didn’t changed. Then propeller rebuild and now I reach 2500, still far from the maximum HP.
Note: tight at the dock, in gear, I can get higher rpm.
Several have mentioned the oversize propeller. I don’t know the answer for that.

But good point from Barry & Veit, why would you want to change your engine?
I don’t like the Turbo on mine, but other than that, twice had to motor for 14 hours and the engine did great. I now have 4900 hour and I am pretty confident (continuing the scheduled maintenance) that it will do 10.000 hours. And yes, I found it very economical too.

Viet & Barry do you have temperature gage on your TMD 22 P? I don’t think Veit has one, how about Barry? If yes what are the temperature at which ever rpm you motor.

Sincerely, Alexandre
SM2K #289 NIKIMAT
Grand Bahama, Bahamas

--------------------------------------------
On Thu, 6/25/15, 'hanspeter.baettig@...' hanspeter.baettig@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: Re: [Amel Yacht Owners] Repower
To: "amelyachtowners@..." <amelyachtowners@...>
Date: Thursday, June 25, 2015, 7:29 PM


 









AlexandreYou are right but why
only 2200 on ful max Speed i go with 2800 and flat water
with 8.4 kn with Perkins 80hpEvery wake will
change the Speed Look in the Forum Bill from
Bebe explain all the importence thingsFair winds
hanspeterTamango 2 SM16 Göcek ,
Turkey

Von meinem iPhone gesendet
Am 26.06.2015 um 02:14 schrieb "Alexandre
Uster von Baar uster@...
[amelyachtowners]" <amelyachtowners@...>:
















 






Hallo Hanspeter,



I have only own my SM2K since 2012, so my experience is
limited.



I have the Volvo TMD 22 P (same as Perkins M80T) which is
rated for 78HP at 4500 RPM



Until 2 months ago, I was only able to reach 2100 to 2200
rpm (which gives 50 HP).

If you are not familiar with SM not able to reach high RPM,
search post on possible oversize propeller for the SM (at
least for the ones with the Volvo).



Earlier this year I had the propeller rebuild, I can reach
2500 rpm (which is 56 HP).

Note that the maximum torque is at 2500 rpm.



Mostly I motor at 1600 rpm, which gives me 5 knots, and use
less than 3.5 liter (less than 1 gallon) per hour.

Sometime I motor at 1800 rpm and I (think I) obtain 7 knots.


Every 10 hours, I increase the throttle to its max 2500 rpm
then reduce to 2400 rpm for a few minutes to clean
exhaust/turbo.

Personally I wish (for a sailing vessel) it was normally
aspirated, as I had the turbo rebuilt in 2012 then changed
in 2015.



If you want, I can post the TMD22P data.



Sincerely, Alexandre

SM2K #289 NIKIMAT

Grand Bahama, Bahamas.



--------------------------------------------

On Thu, 6/25/15, 'hanspeter.baettig@...'
hanspeter.baettig@...
[amelyachtowners] <amelyachtowners@...>
wrote:



Subject: Re: [Amel Yacht Owners] Repower

To: "amelyachtowners@..."
<amelyachtowners@...>

Date: Thursday, June 25, 2015, 5:44 PM





 



















Question to all SM ownersWhats

the different between 80 hp and 110 hpMax Speed

for SM is ca 8.5 knIndependent how much power,

the power on the Prop is Important I have this

speed with clean  boat/Propeller with the Perkins 80 hp

Turbo (1990, 3000 h)HanspeterSM 16

Tamango 2Göcek, Tutkey



Von meinem iPhone gesendet

Am 25.06.2015 um 18:18 schrieb "Germain

Jean-Pierre jgermain@...

[amelyachtowners]" <amelyachtowners@...>:

































 













Wise choice Steve..

JPG





On

25 Jun 2015, at 17:00, flyboyscd@...

[amelyachtowners] <amelyachtowners@...>

wrote:

































 













Thanks for the info Chris. It looks like 80 hp is

the way to go on our older boats due to the Cdrive

issues.



Regards,

Steve and Liz

Aloha SM72







































































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Hallo Hanspeter,

To me it is not clear why many owners with the Volvo TMD22P can only reach 2200 rpm. I had injectors rebuilt, heat exchanger cleaned, etc. everything check, didn’t changed. Then propeller rebuild and now I reach 2500, still far from the maximum HP.
Note: tight at the dock, in gear, I can get higher rpm.
Several have mentioned the oversize propeller. I don’t know the answer for that.

But good point from Barry & Veit, why would you want to change your engine?
I don’t like the Turbo on mine, but other than that, twice had to motor for 14 hours and the engine did great. I now have 4900 hour and I am pretty confident (continuing the scheduled maintenance) that it will do 10.000 hours. And yes, I found it very economical too.

Viet & Barry do you have temperature gage on your TMD 22 P? I don’t think Veit has one, how about Barry? If yes what are the temperature at which ever rpm you motor.

Sincerely, Alexandre
SM2K #289 NIKIMAT
Grand Bahama, Bahamas

--------------------------------------------
On Thu, 6/25/15, 'hanspeter.baettig@...' hanspeter.baettig@... [amelyachtowners] <amelyachtowners@...> wrote:

Subject: Re: [Amel Yacht Owners] Repower
To: "amelyachtowners@..." <amelyachtowners@...>
Date: Thursday, June 25, 2015, 7:29 PM


 









AlexandreYou are right but why
only 2200 on ful max Speed i go with 2800 and flat water
with 8.4 kn with Perkins 80hpEvery wake will
change the Speed Look in the Forum Bill from
Bebe explain all the importence thingsFair winds
hanspeterTamango 2 SM16 Göcek ,
Turkey

Von meinem iPhone gesendet
Am 26.06.2015 um 02:14 schrieb "Alexandre
Uster von Baar uster@...
[amelyachtowners]" <amelyachtowners@...>:
















 






Hallo Hanspeter,



I have only own my SM2K since 2012, so my experience is
limited.



I have the Volvo TMD 22 P (same as Perkins M80T) which is
rated for 78HP at 4500 RPM



Until 2 months ago, I was only able to reach 2100 to 2200
rpm (which gives 50 HP).

If you are not familiar with SM not able to reach high RPM,
search post on possible oversize propeller for the SM (at
least for the ones with the Volvo).



Earlier this year I had the propeller rebuild, I can reach
2500 rpm (which is 56 HP).

Note that the maximum torque is at 2500 rpm.



Mostly I motor at 1600 rpm, which gives me 5 knots, and use
less than 3.5 liter (less than 1 gallon) per hour.

Sometime I motor at 1800 rpm and I (think I) obtain 7 knots.


Every 10 hours, I increase the throttle to its max 2500 rpm
then reduce to 2400 rpm for a few minutes to clean
exhaust/turbo.

Personally I wish (for a sailing vessel) it was normally
aspirated, as I had the turbo rebuilt in 2012 then changed
in 2015.



If you want, I can post the TMD22P data.



Sincerely, Alexandre

SM2K #289 NIKIMAT

Grand Bahama, Bahamas.



--------------------------------------------

On Thu, 6/25/15, 'hanspeter.baettig@...'
hanspeter.baettig@...
[amelyachtowners] <amelyachtowners@...>
wrote:



Subject: Re: [Amel Yacht Owners] Repower

To: "amelyachtowners@..."
<amelyachtowners@...>

Date: Thursday, June 25, 2015, 5:44 PM





 



















Question to all SM ownersWhats

the different between 80 hp and 110 hpMax Speed

for SM is ca 8.5 knIndependent how much power,

the power on the Prop is Important I have this

speed with clean  boat/Propeller with the Perkins 80 hp

Turbo (1990, 3000 h)HanspeterSM 16

Tamango 2Göcek, Tutkey



Von meinem iPhone gesendet

Am 25.06.2015 um 18:18 schrieb "Germain

Jean-Pierre jgermain@...

[amelyachtowners]" <amelyachtowners@...>:

































 













Wise choice Steve..

JPG





On

25 Jun 2015, at 17:00, flyboyscd@...

[amelyachtowners] <amelyachtowners@...>

wrote:

































 













Thanks for the info Chris. It looks like 80 hp is

the way to go on our older boats due to the Cdrive

issues.



Regards,

Steve and Liz

Aloha SM72







































































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Since I seem to have started this repower thread, I'll tell you why we have decided to repower. As with any decision, I have multiple reasons that have influenced our choice.

Our Perkins Prima has 4200+ hours, and has had various issues in the year and a half we have owned the boat. Currently we have a overheating problem that we cant seem to completely cure. If I keep throwing money at it, we will probably eventually figure it out, but who knows. The wiring harness for the entire engine is old and brittle, and really needs to be replaced. The engine panel warnings are not working, the tach just went out, and a new panel is quite expensive. To rebuild the engine, fix all the other bits and pieces, is going to cost about 3/4 of the price of a new Yanmar. Part of the problem in the USA is the cost of parts and labor doing a rebuild.

We are about embark on a 10 year circumnavigation, and the thought of a reliable new engine with a warranty for 25% more $$$ than rebuilding an old one seems like a good deal to me. I also suspect when we sell the boat after our circumnavigation, we will get a much better price with a mid time Yanmar vs a 32 year old Perkins with 7000 hours.

I guess only time will tell if we are making the right choice, but I'm comfortable with it. Also, we should be back on the water in 2 or 3 weeks, but with a rebuild, we would probably loose most of the summer. In our case, we have spent the last year re-fitting the boat, are ready to go, and it is worth a few $$$ to not lose our summer of sailing.

Best Regards,

Steve and Liz Davis

Aloha SM72

Hauled out in St. Augustine, FL

On Thu, Jun 25, 2015 at 8:16 PM, seagasm@... [amelyachtowners] <amelyachtowners@...> wrote:

 

Frankly, I am at a loss as to why a person would change an engine in the first place. We have the Perkins TMD 22A Turbo and it runs like a gem. I can still reach the hull speed of over 8 knots and I can still power into a 30 knot + head wind and still make way comfortably. The engine has proved to be very reliable and economical to run. If you put two identical Amel's side by side, one with a Perkins/Volva 80hp and one with a Yamnah 110hp and ran them flat out, I doubt if you would see any difference except a larger hole in your pocket.

It is my opinion one would be better of spending the money and giving your existing engine a full overhaul. The Perkins is a very good engine and if the maintenance is kept up, like any engine, it will provide many hours of service. I know I can get parts anywhere in the world so why bother?

Just my two bob's worth.

Kind Regards

Barry & Robyn

Tradewinds III SM #171