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please tell me more
Posted by Dean (more from Dean) on Fri, 15 Oct 2004 07:14:42
In Reply to: Anyone out there know the wall thickness of the, Trevor, Thu, 14 Oct 2004 19:00:22
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Please tell me more about sleeves in Saab engines.
First I have heard of this. In diesels these are often wet sleeves where the sleeve floats in coolant. With a dry sleeve, the sleeve is pressed/shrunk into a continous iron bore with no coolant wetting. A floating sleeve will stay rounder as a block distorts with dynamic loads or with heat-up transients.
One great thing about iron sleeves, is that they have a finer grain structure, and it is possible to have an interesting alloy that would not be economical for pouring a whole block. So the sleeves can have better wear resistance.
Some diesel engines with wet sleeves will have cavitation cavities form in the sleeves unless the proper coolants are used. That cavitation is an idication of how the sleeve moves (shock) with every combustion stroke. So perhaps the alloying of these sleeves in such applications is needed also to get the strength to stand up to that.
posted by 68.93.19...
Posts in this Thread:
- Anyone out there know the wall thickness of the, Trevor, Thu, 14 Oct 2004 19:00:22
- Has anyone cut a block to acctually see the thickness?, Trevor, Fri, 15 Oct 2004 12:06:35
- please tell me more, Dean, Fri, 15 Oct 2004 07:14:42 <-- Viewing This Message
- Re: Anyone out there know the wall thickness of the, gorper, Thu, 14 Oct 2004 19:38:46
- Re: Anyone out there know the wall thickness of the, jak
, Thu, 14 Oct 2004 19:08:17
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, Thu, 14 Oct 2004 21:56:32