Re: alfa-digest V8 #169 - Monosleeve Liners?

[bearbvd@domain.elided (Greg Hermann)]

At 8:44 PM 10/25/01, AlfaNeely@domain.elided wrote:
>In a message dated 10/25/2001 4:36:06 PM Central Daylight Time,
>owner-alfa-digest@domain.elided writes:
>
>> Date: Thu, 25 Oct 2001 12:07:07 -0600
>> From: "Mitch Wolberg" <wm12@domain.elided>
>> Subject: Monosleeve Liners?
>>
>> Not that I'm planning any wild mod's to my cars but what are monosleeve
>> liners? I would guess that they're milled from a solid block and the
>> standard liners are made from a curved piece of steel with a seam.
>>
>> Mitch Wolberg,
>> Denver, CO
>> 69 Berlina
>> 69 Spider Jr.
>>
>
>       I remember seeing a photo of a monoblock years ago.  I believe the
>term was a monoblock rather than a monosleeve.  I have no idea what book it
>was in.  It seems to have been for a 1300 cc boat racing Alfa engine.
>       All four liners were cast as a unit.  The unit slipped into the normal
>Alfa block.  I guess the theory was that when an engine was highly stressed,
>the liners would potentially move around less relative to each other if they
>were made as a unit.
>       At least that is the way I remember it.

The 16 valve 1900's were built that way. A mono-sleeve was fit into a
mono-block.

Reason was to get a larger bore with siamesed bores. I believe the 1900's
had an 86 mm bore, 82 mm (same as 1600) stroke. I think there was also a
1500, short stroke version for some marine racing class or another.

Don't know whether the 1500 used the same deck height (together with LONG
rods) as a 1600/1900 or not.

Greg
>
>
>
>Ciao,
>Russ Neely
>Oklahoma City
>
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