" How tight should the cylinder fit into the case? Is it light interference fit? If so, how do I accomplish this? Randy. you warned me NOT shrink fit these engines together as I would never get them apart again. Due to the fact that the cylinder in the other Silver Star was just a push fit, perhaps there may be a bit of grunge on both the cylinder and the case. I may clean these parts to where they are clean and try again. In the past, I fitted the engine with a light interference fit by placing cylinder in the freezer and the case in the oven prior to fitting them into the engine. This gave a brief time to align the ports with the cutouts in the case. Heating the two parts permitted easy disassembly. "
Hi Frank
You are correct you should clean the parts very well, you can even sand the outside of the sleeve with 1000 grit, as many times it has corrosion, rust, or carbon, steel wool will work too and NO I did not warn you to not shrink fit a steel sleeve into a HP, You should not shrink fit the Brass sleeve, it should be a slip fit, the steel sleeve needs to be a press fit,
If you take the cleaned parts of the HP, and do as I described earlier in this thread "make sure the inside case is clean and smooth with no burrs, and also the outside of the sleeve, on a HP you put the piston sleeve ring pin and all in the case at the same time, Heat the case and drop in the whole assembly, take care to make sure the ring gap is in the correct place, and take care to slide the assembly in straight where the exhaust port is lined up correctly,"
I have done this on 1000s of engines, and about a hundred HPs with a press fit, There has never been a problem with any of them. I just clamp the engine lugg on one side with a vise grip that has thin cardboard over the jaws, then I heat the case with a REAL heat gun, or propane torch, ... it takes about 8 to 10 seconds with a torch, then drop in the complete piston sleeve rod assembly, if there is no dings of debris, it should drop right in, and you will have a few seconds to make sure the sleeve in in correctly. You can call me if you have more questions
Randy
PS All of the Sliver stars are supposed to be steel sleeves
The Gold Cups are the ones that had the ABC-R setups , although I have seen many with steel sleeves and I have even seen Silver Stars with ABC-R in them