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Absolutely, when it flipped on its lid i held it w.o.t for around 20 seconds, then pop lol after all the use i got from it the block internally was beat and the crank, the ps was newer but got scored from running lean so said let it rip! New 2.5 running great

Couldnt tell what it was, ran the heck out of it and the piston shattered, when i pulled it apart the front seal had pieces missing, this engine had two p/s put in and one set of bearings and over 40 gallons, money well spent I built an engine braak in stand, but it requires new shoes...

Thanks! So i ended up running it anyways for anothet two quarts of bashing and it blew, it was the front seal new engine same carb workin great

Hi i have quite a few revos (5) only ones brushless and many other electric/nitro rcs, but the one i been runnin in the snow has the old 2.5r in it, god only knows how old it is i can see mar marks all over inside the block from someone inexperienced changing out bearings, had an extra piston...