I picked up a deal.

1-Royal-air 40T compleated
1-Futaba 7ch digital proportional radio
1-tote box with automatic power panel & Mark X electric fuel pump
1-Starter
tools and extra parts

IT has a max-46sf-s abc engine that after sitting 17 years was a bit gummed up however, looks to be in great shape.

my problem is I took it half way apart and can't get the piston and rod out to re-insert them into sleave due to ring.

Can any one help?