RE: Monosleeve Liners?

[bearbvd@domain.elided (Greg Hermann)]

At 1:20 AM 10/26/01, Brian Shorey wrote:
>> When all of the cylinders are "tied together" as a unit, you have a
>> monosleeve.  With all of them together (welded or brazed?) the resulting
>> structure is much stronger and less prone to vibration and movement,
>> than the four separate cylinder sleeves held in place by the torque of
>> the head bolts.
>
>No input on the construction of the liners (I think Greg Herman covered
>that), but I think the main reason for the monosleeve is that it allows for
>a larger bore.
>
>If the liners are separate, then between cylinders you have two thinner
>walls (one for each liner).  With the monosleeve, you've got one thicker
>liner wall between cylinders.
>
>I'm sure somebody will correct me if I'm wrong.

You are basically correct, except I believe that the mono-sleeves were cast
as one piece. The bigger bore was the reason, increased stiffness is an
advantage, increased distortion with temperature change and poorer cooling,
both because of the lack of coolant flow between bores is a disadvantage.

Greg
>
>bs

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