looking to ID 1100 engine

Have an old 1100 (?) engine I was looking to find the vintage and
specs for. It has the fuel pump side mounted and generator stand cast
into case.

The number stamped near the generator is 1-1,133,298

I found this resource

http://www.thebugshop.org/bsrbyrs.htm

which tells me it could be a 1947 25 hp, but my # is slightly larger
than the max engine number listed for 1947. It appears starting in
1948 the engine numbering pattern changed and no longer starts with
the 1- like mine does.

If I ignore the 1- in my number, the serial 1,133,298 puts it as a
1955 36 hp.

Any ideas?

On 9/9/2010 12:40 AM, Mike wrote:
> Have an old 1100 (?) engine I was looking to find the vintage and
> specs for. It has the fuel pump side mounted and generator stand cast
> into case.
>
> The number stamped near the generator is 1-1,133,298
>
> I found this resource
>
> http://www.thebugshop.org/bsrbyrs.htm
>
> which tells me it could be a 1947 25 hp, but my # is slightly larger
> than the max engine number listed for 1947. It appears starting in
> 1948 the engine numbering pattern changed and no longer starts with
> the 1- like mine does.
>
> If I ignore the 1- in my number, the serial 1,133,298 puts it as a
> 1955 36 hp.
>
> Any ideas?



I'm looking at Bob Wilson's 1949-1959 VW Beetle book,
an authoritative source.

The last engine number in 1948 was 122,649.

Your number 1,133,298 places it during the month of February 1956.
(The last engine # in February was 1,344,312.)

Speedy Jim
http://www.nls.net/mp/volks/

On Sep 9, 5:14*am, Speedy Jim > wrote:
> On 9/9/2010 12:40 AM, Mike wrote:
>
>
>
> > Have an old 1100 (?) engine I was looking to find the vintage and
> > specs for. *It has the fuel pump side mounted and generator stand cast
> > into case.
>
> > The number stamped near the generator is 1-1,133,298
>
> > I found this resource
>
> > * *http://www.thebugshop.org/bsrbyrs.htm
>
> > which tells me it could be a 1947 25 hp, but my # is slightly larger
> > than the max engine number listed for 1947. *It appears starting in
> > 1948 the engine numbering pattern changed and no longer starts with
> > the 1- like mine does.
>
> > If I ignore the 1- in my number, the serial 1,133,298 puts it as a
> > 1955 36 hp.
>
> > * Any ideas?
>
> I'm looking at Bob Wilson's 1949-1959 VW Beetle book,
> an authoritative source.
>
> The last engine number in 1948 was 122,649.
>
> Your number 1,133,298 places it during the month of February 1956.
> (The last engine # in February was 1,344,312.)
>
> Speedy Jimhttp://www.nls.net/mp/volks/

But what's up with the 1- in my engine number? From the above
resource, it shows all engines 1947 and prior had the 1-, numbers
after 1948 did not have the 1-.

Is it understood that you just drop the 1- and assume it is a later
engine/number?

Is there any other way (besides measuring bore/stroke) to tell if it's
a 1100 vs. a 1200?

1947 (1 Jan 47 - 31 Dec 47)
Engine: 1-090,733 - 1-0100,788

1948 (1 Jan 48 to 31 Dec 48)
Engine: 100,789 - 122,649

On Thu, 09 Sep 2010 14:31:04 +0200, Mike > wrote:

> On Sep 9, 5:14 am, Speedy Jim > wrote:
>> On 9/9/2010 12:40 AM, Mike wrote:
>>
>>
>>
>> > Have an old 1100 (?) engine I was looking to find the vintage and
>> > specs for. It has the fuel pump side mounted and generator stand cast
>> > into case.
>>
>> > The number stamped near the generator is 1-1,133,298
>>
>> > I found this resource
>>
>> > http://www.thebugshop.org/bsrbyrs.htm
>>
>> > which tells me it could be a 1947 25 hp, but my # is slightly larger
>> > than the max engine number listed for 1947. It appears starting in
>> > 1948 the engine numbering pattern changed and no longer starts with
>> > the 1- like mine does.
>>
>> > If I ignore the 1- in my number, the serial 1,133,298 puts it as a
>> > 1955 36 hp.
>>
>> > Any ideas?
>>
>> I'm looking at Bob Wilson's 1949-1959 VW Beetle book,
>> an authoritative source.
>>
>> The last engine number in 1948 was 122,649.
>>
>> Your number 1,133,298 places it during the month of February 1956.
>> (The last engine # in February was 1,344,312.)
>>
>> Speedy Jimhttp://www.nls.net/mp/volks/
>
> But what's up with the 1- in my engine number? From the above
> resource, it shows all engines 1947 and prior had the 1-, numbers
> after 1948 did not have the 1-.
>
> Is it understood that you just drop the 1- and assume it is a later
> engine/number?
>
> Is there any other way (besides measuring bore/stroke) to tell if it's
> a 1100 vs. a 1200?
>
> 1947 (1 Jan 47 - 31 Dec 47)
> Engine: 1-090,733 - 1-0100,788
>
> 1948 (1 Jan 48 to 31 Dec 48)
> Engine: 100,789 - 122,649
>


The intake manifold should be different between the 25 and 30ps engine.
Also note that the -56 engine is a 30ps engine, only referred to as a 36hp
(SAE) in the U.S.

J.

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