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[rednectum]

Aluminum and cast iron have different expansion rates and always will.  They don't expand and contract at different rates as they are "seasoned".  You cannot "pre heat" the two materials to achieve different expansion rates.  What is important is the design that "locks" the liner to the cylinder.  The design of how the liners are installed into the cylinders has to maintain the integrity of the bore geometry and joint face geometry in spite of the differing expansion rates.

agreed. look back at the old ford tractors. they used press in sleeves. at first, you would hear an ocassional tick, then a more constant tick. after many hours usually, smoke would pour------------this is the point the sleeve had cracked. it was discovered that the bloch expanded, the head "raised", releasing the liner for the ring friction to make the line travel up and down. if engine stopped with cylinder in up position, as engine cooled, it would try and push sleeve back down. cracked sleeves were the result.

[skyhook]

really think these liner problems are heat related...also h-d has been selling 113 kits for couple years now and haven't heard of leaks or cylinder problems from them...are those cylinders similar to 110?...I really believe that a cam change in the 110's is the fix...215 cold cranking pressure is too much...also the short overlap of the stock cams retains too much heat...I bet a cam with 34 to 38 degree intake close and longer duration would really cool the motor and make good hp/tq as well

[skreminegul07]

really think these liner problems are heat related...also h-d has been selling 113 kits for couple years now and haven't heard of leaks or cylinder problems from them...are those cylinders similar to 110?...I really believe that a cam change in the 110's is the fix...215 cold cranking pressure is too much...also the short overlap of the stock cams retains too much heat...I bet a cam with 34 to 38 degree intake close and longer duration would really cool the motor and make good hp/tq as well

No, the 113" are much larger, allowing more heat dissapation and much more gasket sealing area.  By nature of design, this issue probably won't apply.
Just look at the 110" situation, it is definitely heat related as I can safely say 90% of the failures are the rear cylinder.  Just the temp diff/ cooling factor keeps the front from failing.  The front and rear are the exact same part.

[hdhiwayman]

I have a question for some of you engine guys. Have the piston ring gap dimensions been increased to accomodate the increase in engine temp. on these 110's? My thinking is if the gap gets closed up it could create enough friction to move the sleeve.