hollywood8118
Guru
- Joined
- Nov 16, 2009
- Messages
- 2,391
- Location
- USA
- Vessel Name
- " OTTER "
- Vessel Make
- Ocean Alexander Europa 40
We currently have a 225hp Volvo in our 40' Ocean Alexander.
It started life as a 275hp TAMD70C, have the injectors stepped down to the 225hp rating of the TAMD70 during a complete injector service.
We never used the upper 700 rpm of the range as it sucked fuel like a 66 Cadillac climbing a mountain pass.. we cruise the boat at 1600-1700 rpm making 8.3kts in flat water.. she would do 11kts fire walled.. no need to go that fast.
I have the opportunity to get a 10 year newer motor that is 110hp at a reasonable cost.. I would do all the re-power myself.. no big deal.
My TAMD70c has all new exchangers/coolers.. but has a lot of crap hung all over it in the form of pre heat start system etc.. the 70c motor is known as a bulletproof block.. hard to kill motor.. as in most marine diesels it is the stuff hung on the outside of the block that normally fails.. parts for the thing are very hard to get and wicked expensive.. the injection pump is almost the sive of the motor on my 7.5kw genset!
Its one really bad attribute is it smokes BAD when cold on start up.. but no smoke when warm.
So my long winded question is this...
Repower with the 110hp motor?
Strip off any unnecessary stuff ( aftercooler,cold start system that doesn't work anyway and simplify the tamd70 to a tmd70?
Is 110hp enough for the 40' hull to hit 8kts reasonably?
I am trying to keep this boat reasonable.. plan to take it to Mexico and possibly leave it for a few seasons and winter there..
The 70c motor is a monster.. a bit more room in the E.R. would be nice..
Personally I want to sell off everything and buy a Nordhavn and split .. but the Admiral isn't completely warmed up to full time cruising again just yet..But she loves the Mexico idea.
Thoughts and input from anyone ?
HOLLYWOOD
It started life as a 275hp TAMD70C, have the injectors stepped down to the 225hp rating of the TAMD70 during a complete injector service.
We never used the upper 700 rpm of the range as it sucked fuel like a 66 Cadillac climbing a mountain pass.. we cruise the boat at 1600-1700 rpm making 8.3kts in flat water.. she would do 11kts fire walled.. no need to go that fast.
I have the opportunity to get a 10 year newer motor that is 110hp at a reasonable cost.. I would do all the re-power myself.. no big deal.
My TAMD70c has all new exchangers/coolers.. but has a lot of crap hung all over it in the form of pre heat start system etc.. the 70c motor is known as a bulletproof block.. hard to kill motor.. as in most marine diesels it is the stuff hung on the outside of the block that normally fails.. parts for the thing are very hard to get and wicked expensive.. the injection pump is almost the sive of the motor on my 7.5kw genset!
Its one really bad attribute is it smokes BAD when cold on start up.. but no smoke when warm.
So my long winded question is this...
Repower with the 110hp motor?
Strip off any unnecessary stuff ( aftercooler,cold start system that doesn't work anyway and simplify the tamd70 to a tmd70?
Is 110hp enough for the 40' hull to hit 8kts reasonably?
I am trying to keep this boat reasonable.. plan to take it to Mexico and possibly leave it for a few seasons and winter there..
The 70c motor is a monster.. a bit more room in the E.R. would be nice..
Personally I want to sell off everything and buy a Nordhavn and split .. but the Admiral isn't completely warmed up to full time cruising again just yet..But she loves the Mexico idea.
Thoughts and input from anyone ?
HOLLYWOOD