engine

Hi all, hoping someone can help. I recently did a service on my big rock and for thr life of me, I can't slide the engine back into its place. No upgrades were made, just took out the spur to check its health and put it back together again. But can't get the engine to slide back into place...

Hello, first sorr for my worse english, I am German. I am looking for a new combo, the slider I have chosen the Max8 but motor i don't know... Maybe Castle 1515 or tenshock x802? I think that's maybe too much power...., it should have more power and can do backflips bur don't break too fast...

so I was running my granite the other day and saw smoke coming from the engine, i cut it off let it sit. It ran alright for a little bit then cut about 75% of the power while on the ground. While holding it up, the wheels would spin slowly and build up to about 60% strength. I sprayed some wd40...