van ford wrote:
> Thanks, that sheds some light on the question.
>
>
> Van...
>
> -----Original Message-----
> *From:* owner-baba-l@ballreich.net
> [mailto:owner-baba-l@ballreich.net]*On Behalf Of *Dennis O'Hare
> *Sent:* Wednesday, November 08, 2006 9:03 AM
> *To:* baba-l@ballreich.net
> *Subject:* RE: [Baba-L] ENGINE-YANMAR
>
> I believe the engines are basically the same but for the bore and
> stroke the 20HP has a displacement of .85 liters and the 30, 1.1 Liters
>
>
>
> D O’Hare
>
> Aibhilin
>
> Baba 30
>
>
>
> -----Original Message-----
> *From:* owner-baba-l@ballreich.net
> [mailto:owner-baba-l@ballreich.net] *On Behalf Of *Chuck Sawyer
> *Sent:* Wednesday, November 08, 2006 8:51 AM
> *To:* baba-l@ballreich.net
> *Subject:* RE: [Baba-L] ENGINE-YANMAR
>
>
>
> May have to do with RPM and Shaft Horse power off the reduction
> gear; I am sure if you get the engine serial number and write the
> Manufacturer their may be an answer.
>
>
>
>
>
> If someone should happen to know the answer to the following I would
> really appreciate it.
>
>
>
>
>
> Not sure of the model, but it has been discussed before.
>
>
>
> 1985(not sure) 3mg or 3gm(not sure) in my Baba 30. Does anyone know
> the difference between the 30 hp and the 20hp.
>
>
>
>
>
> Is it the same block
>
> same bore and stroke
>
> same injector pump
>
> same injectors
>
> same heads
>
>
>
> In other words how the difference in hp if it generally is the same
> engine.(don't know that much about diesels)
>
>
>
> Van....
>
>
>
Dear Van
first let me say that Yanmars numbering lettering combos are at best
cryptic. If it is the original engine then it is a 3GMF the F stands for
fresh water cooling hence a heat exchanger. We have the same engine in
our Baba 84 I don't have my factory manuel at home but for sure the
engine is rated at 20hp @3400 rpm and displaces 1.0 litre they share few
if any parts with the Ym series. They are a good engine and less complex
/stressed compared with the new ym series engine though we find that
3100rpm is maximum comfortable cruising rpm where you are putting app+/-
16.5 hp to the shaft. As long as we don't have head winds or head seas
or contrary current all is well with the 20hp. I have become pretty
familiar with the 3gmf over the last three years I'll bring the manual
home if you have any more questions.

Best Regards Rick Ballreich SV Mandisa

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Received on Wed Nov 8 17:32:44 2006