Originally Posted by
22Racer
The Go engines have always came pretty tight but I think they are even tighter now and I consider them way too tight. I recommend lapping the ones I sell for easier break in.
Rex
I have to agree with Rex and Craig. The newer GO engines (Champion etc) are extremely tight - too tight. Crazy hard to get started even on on a run in bench with plenty of pre heating (Competition Heat and hot air gun in liberal amounts).
This may be a design feature for longevity, but the rod and crank pin take such a hammering during run in that any positives in having an engine this tight are surely negated.
Originally Posted by
cczjordan
Hopefully can get a final answer, go gx series, gx2, gx2plus crankshaft interchangeable, only gx2 crankshaft available at d moment
Yes. The crankshafts are interchangeable. The only difference being various coatings and the epoxy ramp in the later versions.