Given the cost of rebuilding AND reinstalling them, this may not be the
best use of funds.


plugster wrote:
I can easily reinstall them myself in about a day each. I have done this
type of work before.

Yeah, it's not rocket science but it can sure be a PITA. Getting all the
auxiliaries hooked up is the touchy part, and time consuming too.

If you can doa significant part of it yourself then IMHO that tilts the
equation towards rebuilding/reinstalling the old engines. Shopping
around for a diesel shop is a catch-as-can process. I wish I had some
good advice.


If it really is a "bolt-in" replacement then that may be the best way to
go , in terms of utility/cost comparison. I'm sceptical of the "bolt-in"
part though, it never goes that easy.



I am also a bit sceptical and am sure there will be a few problems fitting
them. But others have done this swap and have said it was simple and took
less than a day with 2 people.

Then it's a question of time/money. You have a number of other projects
to get on with, so the less time you spend futzing with this, the sooner
you're sailing. It may be that it's worth the higher price for new
engines, and you'll spend less time monkeying around with the reinstall.



The 40 hp version is only 1.5 inches longer and 2.5 inches wider....
The 40 hp engine also has a larger drive and a larger prop. It is my
understanding that this also makes the drive a bit more efficient so there
is more like a 20%+ increase in speed for the 38% increase in power and fuel
consumption. One other advantage of the 40 hp is that it develops the 40 hp
at 3000 rpm but the 29 hp is at 3600 rpm. The added weight of the 40 hp
over the 29 hp is 98 lbs each so I do not think that this is major factor.

Yes it is. 200# added disp, at the stern, plus higher fuel consumption
(have you thought about putting in bigger tanks?), is an issue on a
sailing cat IMHO. If you like the idea of sailing slower plus having to
scrape barnacles off the stern platforms, then I guess it's no big deal.

It sounds like you're leaning towards the bigger engines anyway. Like I
said, most people seem to have a love affair with horsepower. I don't
share it, maybe I got it out of my system or maybe I'm just jealous

DSK

Hello DSK,

I took another look at the actual sail drives including the insides and they
look great. I have also found new direct replacement engines of the same
size for $3995 each. So I think I am just going to replace the engines only
and overhaul the saildrives. This will keep the same weight and power but
at least they will be new engines and the cost is less then 1/2 of going
with the new engines and drives.

I was and still am planning on adding bigger tanks.

Thanks for you input.
Mark


"DSK" wrote in message
...
Given the cost of rebuilding AND reinstalling them, this may not be the
best use of funds.


plugster wrote:
I can easily reinstall them myself in about a day each. I have done
this
type of work before.

Yeah, it's not rocket science but it can sure be a PITA. Getting all the
auxiliaries hooked up is the touchy part, and time consuming too.

If you can doa significant part of it yourself then IMHO that tilts the
equation towards rebuilding/reinstalling the old engines. Shopping
around for a diesel shop is a catch-as-can process. I wish I had some
good advice.


If it really is a "bolt-in" replacement then that may be the best way to
go , in terms of utility/cost comparison. I'm sceptical of the "bolt-in"
part though, it never goes that easy.



I am also a bit sceptical and am sure there will be a few problems
fitting
them. But others have done this swap and have said it was simple and
took
less than a day with 2 people.

Then it's a question of time/money. You have a number of other projects
to get on with, so the less time you spend futzing with this, the sooner
you're sailing. It may be that it's worth the higher price for new
engines, and you'll spend less time monkeying around with the reinstall.



The 40 hp version is only 1.5 inches longer and 2.5 inches wider....
The 40 hp engine also has a larger drive and a larger prop. It is my
understanding that this also makes the drive a bit more efficient so
there
is more like a 20%+ increase in speed for the 38% increase in power and
fuel
consumption. One other advantage of the 40 hp is that it develops the
40 hp
at 3000 rpm but the 29 hp is at 3600 rpm. The added weight of the 40 hp
over the 29 hp is 98 lbs each so I do not think that this is major
factor.

Yes it is. 200# added disp, at the stern, plus higher fuel consumption
(have you thought about putting in bigger tanks?), is an issue on a
sailing cat IMHO. If you like the idea of sailing slower plus having to
scrape barnacles off the stern platforms, then I guess it's no big deal.

It sounds like you're leaning towards the bigger engines anyway. Like I
said, most people seem to have a love affair with horsepower. I don't
share it, maybe I got it out of my system or maybe I'm just jealous

DSK

plugster wrote:
Hello DSK,

Please call me Doug. No need to be formal


I took another look at the actual sail drives including the insides and they
look great.

Good! AFAIK they are sealed and if no salt water got in them, they are
most likely fine.

.... I have also found new direct replacement engines of the same
size for $3995 each.

Now that sounds like a good price.

.... So I think I am just going to replace the engines only
and overhaul the saildrives. This will keep the same weight and power but
at least they will be new engines and the cost is less then 1/2 of going
with the new engines and drives.

That sounds great. The new engines will be good for peace of mind.


I was and still am planning on adding bigger tanks.

I'm considering adding some bladder tanks. There are some issues on
installation, but (again) it's not rocket science and I feel they will
be more compact & less trouble. This spring I replaced the fuel supply
system in our boat (a more challenging job than I thought it would be)
and made provisions for future additions & upgrades.



Thanks for you input.

You're welcome. Good luck with your project!

Fresh Breezes- Doug King

I have also found new direct replacement engines of the same
size for $3995 each.

New 3 cyl. Yanmars for $3995? Could I have the name of that dealer?
S/V Express 30 "Ringmaster"
"Trains are a winter sport"

I gave them a call and it turns out that they are used and shop overhauled.
Or I would have bought them.

They do have new 3YM30 for about $6500. I think they are rated 29 hp versis
27 hp for the 3GM30. Is it worth it to upgrade?

Thanks
Mark



"SAIL LOCO" wrote in message
...
I have also found new direct replacement engines of the same
size for $3995 each.

New 3 cyl. Yanmars for $3995? Could I have the name of that dealer?
S/V Express 30 "Ringmaster"
"Trains are a winter sport"

I've been a bit envious of my friend's new 3YM, but its for small things, like
the waterpump is mounted with the cover facing out, not in. I don't know if
that, and a few other little niceties, is worth the premium you'll pay. The 2
extra hp probably won't be noticed.

The question in my mind is will fixing up the 3GM's give you rebuilt engines, or
will they still effectively have 3000 hours?

The saildrives should have survived the submersion well - they're effective
sealed.


"plugster" wrote in message
link.net...
I gave them a call and it turns out that they are used and shop overhauled.
Or I would have bought them.

They do have new 3YM30 for about $6500. I think they are rated 29 hp versis
27 hp for the 3GM30. Is it worth it to upgrade?

Thanks
Mark



"SAIL LOCO" wrote in message
...
I have also found new direct replacement engines of the same
size for $3995 each.

New 3 cyl. Yanmars for $3995? Could I have the name of that dealer?
S/V Express 30 "Ringmaster"
"Trains are a winter sport"

I gave them a call and it turns out that they are used and shop overhauled.
Or I would have bought them..

I thought something had to be fishy. A replacement 2GM for my boat is more
than the price you were quoted. Yanmars are great engines but the company
should really be investigated for price fixing since almost every dealer sells
for list and it's tough to get a discount. This on top of the fact the things
are overpriced in the first place. Almost $5k for a 2 cyl diesel. **** you
can buy a built Chevy V8 street rod crate motor for that kind of money.
S/V Express 30 "Ringmaster"
"Trains are a winter sport"

Oh and talk to some multi guys about props.
Some of the folders will unfold at the speeds a multi will generate.

Hell if I would waste the money on folding props for a heavy cruising cat. And
I love folders.
S/V Express 30 "Ringmaster"
"Trains are a winter sport"