Originally Posted by
Upbasher
You'll raraely get n engine air leak unless the block is cracked.
The oil substance is fuel, after it goes through the engine it comes out oily because most of the ntro is burned off. Just seal that up and make sure the tank and lins are sealed
not really true. nitro's are notorious for leaks. ive had 5 nitro engines and of those 2 of them leaked really bad. both were losi engines.
a 3.4 and a 350. the 350 didn't leak at first but after about 5 tanks of gas it wouldn't run right for anything. bought some lucky 7 engine sealant and now it runs perfect again.