cylinder liner change

has anyone experience of changing cylinder liners please ?

stand in the oven, heat up gradually & wait for the outer ally casting to drop down ?

while the outer is still hot drop the frozen liner in place ?

bikes are 400 lc & 430 a/c

I would freeze the liner and heat the casting to 300 degrees. But first put a scribed line on the casting and liner exactly where you need the liner to line up in the casting. I would put a scribed line in the middle of the intake port. The scribed line goes on top of the casting and sleeve. Be prepared to clamp the liner into the casting. I seen sweated parts move as they cool down.

You going to tackle the porting yourself?.be careful not to scratch/damage the top of the sleeve thats your seal surface for the head.if youve got a ported cylinder have the shop install the sleeve as some shops install the sleeve shadow mark the ports and remove the sleeve to carry out the majority of the porting then re install and finnish off transitions.

A pencil line would be better. Once the sleeve is in and room temps you need to clean up the ports in the sleeve to the casting.

Here's my process,

First remove the old sleeve.
Clean and deburr the cylinder casing.
Clean and deburr the new sleeve.
You need a guide line to go by as the sleeve drops into the casing. Pencil mark the outside of the sleeve and the top of the casing.
Heat the casing to 300 degrees.
Dry ice the sleeve over night.
Start the assembly going by the line on the sleeve to the mark on the casing. Start it and assemble it quick.
Check the line up mark and the line up on the ports. Move quickly.
I would have two clamps and two 2x4 to clamp the liner inplace. I seen sweated parts move out as they cool.

I recently did this for the 1st time. I left it in the 250 deg oven for 45 minutes. Taped it out with a wood block. Same for install. No freezing or ice.