"Frogwatch" wrote:

Am not sure why Hodgett does not like Yanmar. I have had two and
they
are the most reliable machines I have ever seen.


I was the proud owner of a YSM12, a one lung, raw water cooled beast
that snapped engine mount studs as frequently as some people change
their underwear.

Finally had to install an AquaDrive system to isolate the engine from
the boat hull and eliminate the snapping studs problem.

Little did I realize until much later that Yanmar had withdrawn the
YSM12 from the marine market and my builder had evidently picked up my
engine at a close out sale.

Had the boat 11 years, and that YSM12 was a PITA the entire time.

Today's Yanmar product is a high RPM, low weight unit designed for the
power boat market, not a low RPM, high torque unit designed for a
sailboat application.

Yanmar has figured out the the power boat market spends money and the
sail boat market talks everything to death, but doesn't spend any
money.

Lew

On Sep 14, 2:01 pm, "Lew Hodgett" wrote:
"Frogwatch" wrote:
Am not sure why Hodgett does not like Yanmar. I have had two and
they
are the most reliable machines I have ever seen.

I was the proud owner of a YSM12, a one lung, raw water cooled beast
that snapped engine mount studs as frequently as some people change
their underwear.

Finally had to install an AquaDrive system to isolate the engine from
the boat hull and eliminate the snapping studs problem.

Little did I realize until much later that Yanmar had withdrawn the
YSM12 from the marine market and my builder had evidently picked up my
engine at a close out sale.

Had the boat 11 years, and that YSM12 was a PITA the entire time.

Today's Yanmar product is a high RPM, low weight unit designed for the
power boat market, not a low RPM, high torque unit designed for a
sailboat application.

Yanmar has figured out the the power boat market spends money and the
sail boat market talks everything to death, but doesn't spend any
money.

Lew

I have a friend with a YSM12 in his 27' sailboat. He installed it
himself so maybe he does not have stock mounts. My old 1GM broke a
mount but I never got around to fixing it for 9 yrs and never had
another prob with it. That little engine sounded like the African
Queen but in 9 yrs started EVERY time no matter what. It was also
very easy to work on. I thought it was a great piece of engineering
but at 6.5 hp, a little small for my 7700 lb S2. So, I found a use
2GM (13 hp) and I think it is also wonderful (installed it myself). I
admit, this is only two data points.

"Frogwatch" wrote:

I have a friend with a YSM12 in his 27' sailboat. He installed it
himself so maybe he does not have stock mounts.

I don't think there ever were any "stock" mounts. If it worked, it worked.

That little engine sounded like the African
Queen but in 9 yrs started EVERY time no matter what.

You betcha. Thought about Hepburn and Bogie everytime that little beast was
at idle.

Could point upstream and idle in place against about a 1-2 knot current at
less than 1,000 engine RPM..

It was also
very easy to work on. I thought it was a great piece of engineering
but at 6.5 hp, a little small for my 7700 lb S2.

Nice boat.

So, I found a use
2GM (13 hp) and I think it is also wonderful (installed it myself).

Different engine.

The YSM8/12 were great inustrial engines, not so great as marine units.

The points remains that today's Yanmar product line is a light weight, high
RPM family much like the old VWs.

Works well in a hight speed power boat, not so well in a sailboat which
needs high torque, low RPM.

Lew

On Sep 16, 12:34 am, "Lew Hodgett" wrote:
"Frogwatch" wrote:
I have a friend with a YSM12 in his 27' sailboat. He installed it
himself so maybe he does not have stock mounts.

I don't think there ever were any "stock" mounts. If it worked, it worked.

That little engine sounded like the African
Queen but in 9 yrs started EVERY time no matter what.

You betcha. Thought about Hepburn and Bogie everytime that little beast was
at idle.

Could point upstream and idle in place against about a 1-2 knot current at
less than 1,000 engine RPM..

It was also
very easy to work on. I thought it was a great piece of engineering
but at 6.5 hp, a little small for my 7700 lb S2.

Nice boat.

So, I found a use

2GM (13 hp) and I think it is also wonderful (installed it myself).

Different engine.

The YSM8/12 were great inustrial engines, not so great as marine units.

The points remains that today's Yanmar product line is a light weight, high
RPM family much like the old VWs.

Works well in a hight speed power boat, not so well in a sailboat which
needs high torque, low RPM.

Lew

The 1GM and 2GM do have stock mounts with huge rubber flex pads.
When I bought my S2 with the 1GM, i was worried about being able to
power into thunderstorms (we have a lot of them here in N. FL) so I
had the 2 blade prop replaced with a 3 blade and it seemed to work
well. I once ran from Naples, FL to St. Marks FL no wind at all the
entire time for 250 miles and burned only 12 gallons of fuel at 5 kts
the whole time. That little engine never missed a beat.