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Case Tractors Discussion Forum

Wet sleeve vs dry sleeve

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Dave S

02-28-2004 22:24:11

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What is the benefit of wet over dry? Is the cooling supposed to be better? Finally got sleeve out of my DC and number three and four were full of rust. No cooling benefit there. Thanks, Dave S

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DKase

02-29-2004 09:14:18

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Re: Wet sleeve vs dry sleeve in reply to Dave S, 02-28-2004 22:24:11

I've been pulling CC blocks appart for parts this week, and you are right. If they were not taken care of properly the blocks can be 1/2 full of rust. Now think about the dry sleeve block that is also 1/2 full of rust and you do not realize it. How do you get that crap out? I prefer the wet sleeves. I think they cool more evenly. If you try to heat up two pieces of steel that are clamped togather you would know that heat does not flow through two pieces nearly as well as it does through one piece. If a leak developes replace the wet sleeve, not the block!

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Jerry

02-29-2004 05:19:11

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Re: Wet sleeve vs dry sleeve in reply to Dave S, 02-28-2004 22:24:11

Dave,
The reason for dry sleeves is if you have a cylinder go bad you replace that cylinder jug. were on dry sleeves you would send the block out and have it bored, and you can only do it so many times.Some people say that the block is more stableand heats up at the same time. I prefer the wet liners[jugs], my self
As for the cooling there is no difference at all .
Jerry

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Dr Cy Kosis

02-29-2004 05:45:48

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Re: Re: Wet sleeve vs dry sleeve in reply to Jerry, 02-29-2004 05:19:11

Jer,

I don't quite get your answer there. A dry sleeve block still has a sleeve that is replaceable. A conventional bored block would need boring after enough run time to have sufficient wear or some sort of internal damage.

The dry sleeves while thin, are still replacable. You'd sure have to run one a long time to wear all the way through the sleeves and into the block to need reboring.

The basic difference between a wet sleeve and a dry sleeve is whether or not the coolant comes in direct contact with them. If it is wet, then it has to be a lot thicker since it has nothing really backing it up for strength.

There are some sleeves out there which slide in the block and contain the waterjackets entirely within them. The block itself is basically dry. They're kind of a sleeve in a sleeve and have water passages through the top to feed the head and provisions to feed each sleeve coolant from the bottom, usually though a pipe.

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Jerry

02-29-2004 06:13:44

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Re: Re: Re: Wet sleeve vs dry sleeve in reply to Dr Cy Kosis, 02-29-2004 05:45:48

Doc.
That is true about the sleeves but you can run the engine with out sleeves and get a big bore and need new pistons to match. When you install new sleeves dry you must match them very closely with the cylinder before you cold press them in. I also was thinking like a truck or car block that is cast in one piece.Doc. wet sleeves are a lot easier to remove and replace.

Jerry

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