my revo with the 2.5R engine has been in storage for almost 2 years. well, i pulled it out to get it ready to run, and alas, the motor is siezed. i remember setting the piston at BDC after i prepped it for storage. i know my curious son (13) messed with it not long after i stored it. anyhoos, i charged up my ez start battery, and nothing when i plugged it into the truck. i took out the glow plug and found the piston is at or near TDC. so far i've filled up the cylinder with WD40 but i haven't been able to turn over the motor by hand yet. any suggestions on how to free the stuck piston?
I soak mine in some old nitro fuel. After it frees, I disassemble the whole engine, clean , lube and reinstall.
One shot.....One kill, no exceptions
Yup either old nitro or denatured alcohol, let it soak.
You may want to tare it down & clean it out & reseal it.
Look out for the tree/crunch!
LiPo? Naw NITRO!!
hair dryer and heat up the engine..took about 10 min to free up mine that had been sitting for 10 years
The O.P... You said you dropped the piston to BDC, but did you run the engine empty, place after run oil down the carb and into the glow plug hole and turn over the engine a little when you stored it? I've a motor on the shelf been sitting for 4 years, I bet it still turns over since I did a proper after run...
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