TOPIC:

my 900 sleeves spun during the boring. The machinist loctited them in and that took care of the problem. They have come loose again but it does nothing detrimental.

As for boring the sleeves out of the block, won't work with press fit sleeves, however, a number of years ago we did some Triumph Daytonas and those have removable sleeves. We had to make a fixture to put the sleeve in to bore and hone it to size, then put it back in the block.

Funnycars and top fuel cars have slip in sleeves, held in by the cylinder head. The sleeves are finished bored and honed to size. They can changes damaged pistons between rounds by just popping a sleeve out, sliding a new one with a new piston back in.

Jay

Good stuff Jay! Wouldn't it be nice to just buy a piston all set up in a sleeve with ring ready to go! Oh! lets toss a set of gudgeon pins in as well!
RegardZ

Z1 sleeves ARE NOT press fit.
Put the cyl. block in the oven for an hour at 200 ,
turn it upside down and you have 4 HOT sleeves rolling around on the floor.

I would NOT use any kind of JB or loctite , it messes with heat transfer.

Whoever bores the sleeves should use a plate and a gasket to hold them in place so the dont spin.

MDawnz1 wrote:

Z1 sleeves ARE NOT press fit.
Put the cyl. block in the oven for an hour at 200 ,
turn it upside down and you have 4 HOT sleeves rolling around on the floor.

I would NOT use any kind of JB or loctite , it messes with heat transfer.

Whoever bores the sleeves should use a plate and a gasket to hold them in place so the dont spin.

The correct term is "interference fit". People just call that "press fit" But everyone knows you never "press" a sleeve in. The reason for this thread is that on some of these old KZ blocks, the interference was not enough.

Jay

Z1 sleeves ARE NOT press fit.
Put the cyl. block in the oven for an hour at 200 ,
turn it upside down and you have 4 HOT sleeves rolling around on the floor.

I would NOT use any kind of JB or loctite , it messes with heat transfer.

Whoever bores the sleeves should use a plate and a gasket to hold them in place so the dont spin.

Get your jug checked for cracks.

What messes with heat transfer is thick cast iron sleeves. Boring the sleeves allows less erea to collect and retain heat, meaning its getting out to the aluminum faster. Say hit the throttle and the heat is gone. When the is under load, the heat is wisked away. Not stuck to the loctite glowing red hot searing through the trouble spots like the dragonwhosjaws were loctited by the castle gaurds.