Is this OS 21 rz any good?

[jlobbia]

Hello all. I have a tmaxx big block on the bench. It has the xtm 457, which the bearings broke and the clutch bell flew off. I have ordered replacement parts for it, but I want another spare engine in case it breaks something that I can't replace. I found a OS 21 rz for 45 bucks used without flywheel, pinion gears, clutch or pullstart. I have a spare pullstart from my xtm 457, and so could I possibly use that if I bought it? Again, should I even consider buying it? Would it fit in my tamxx BB? Thanks in advance.

 

[cbaker65]

Hello all. I have a tmaxx big block on the bench. It has the xtm 457, which the bearings broke and the clutch bell flew off. I have ordered replacement parts for it, but I want another spare engine in case it breaks something that I can't replace. I found a OS 21 rz for 45 bucks used without flywheel, pinion gears, clutch or pullstart. I have a spare pullstart from my xtm 457, and so could I possibly use that if I bought it? Again, should I even consider buying it? Would it fit in my tamxx BB? Thanks in advance.

If you want that nice engine ,you would be better off buying a good used truggy or buggy to run it in ,an use a starter box ,that
engine is for racing!...

 

[alfredwong2003]

I don't think OS RZB is capable of pull start, you will need a starter box. OS RG21 is designed with pull start. I don't know if you can exchange parts. Sometimes if you put a better engine in with lots of torque, it can strip some gears. But good luck.