Post by XenoPost by Mighty Mousehttps://www.youtube.com/shorts/fWxj43KFIc0?feature=share
Seen the dry ice cooling of the sleeves but the gas axe is a bit of a
worry. Normal to heat up the block in an oven to get *even* expansion.
The way it is done in the video is applying localised heating and can
cause cracking if careless. It is an alloy block by the look of it.
Only ever done sleeves on cast iron blocks, like the 300 petrol
Bedfords. They aren't shrink fits, they get shimmed under the step to
get the correct *crush*, and that crush is provided by the cylinder
head. The Isuzu TWD 6x6 trucks I worked on in Indonesia were the same
but the Indos wouldn't get the crush right, the sleeve would rock and
chafe at the head gasket. Once the block bore became oval, the block
was stuffed - but they kept using them, and changing head gaskets.
Frustrating place to work.
Done quite a few wet sleeves in trucks, and in my old Peugeot, like this;
http://youtu.be/uzj2wpIONnE
This one explains the protrusion factor.
http://youtu.be/0vWeibfi_Wg
Brings back memories, that video! ;-)