Originally Posted by
ozziii
Does anyone know if this piston/sleeve/rod assembly will fit & work properly in the older GX-5R GO Engine. I have a modified GO Engine that is now starting to loose a little compression & was offered the parts but not sure if they are correct for mine.
Part number is 21-02205x & on the exploded view of my engine the number for the assembly is 21-2205. Being a stock part I will loose power/torque but atleast my engine will be like new again, just slower, but for $50 its a good option.
That Piston, liner and con-rod kit is one of the alternatives that I use on any of my GO based engines Paul. Your Godzilla and my MG66's have an extra transfer port under the inlet port and more refined fluting up to the ports. The timing, if you need a little more 'Snap', is done by adding special STEEL shims under the lip of the liner. They come in various thicknesses .01mm, .02mm and .03mm etc, but remember, you must remove the corresponding size button shim otherwise you will DECREASE compression. PM me if you need any further help or info on where to soure your GO Engines spares.
