Fuel leaking from pipe

[way2fast]

hey guys, i just bought my first nitro savage x4.6. I did the first break in on the first tank, and at first, i over flooded the engine pretty bad. I kept on trying until it started. Once it started, i let it idle in the basement with the windows open on a whole fuel tank. After it shut off, i came down stairs, and found out that there was kind of unburned gas on the floor. It all came from the pipe. Is this normal?? Considering the fact i over flooded the engine with lots of gas?? I'm guessing its pretty normal, but I'm just checking with you guys. Let me know

 

[Metalhead Matt]

It's normal. It's spitting fuel out because the factory sets the needles rich for break in. You really should read up on the heat cycle method. You should be driving the truck slowly for 2-3 minutes with temps around 220-240, shutting it off and putting the piston to bottom dead center. Let it cool completely, fire it back up and do it again, ect. You should also use a hair dryer to get the engine as warm as possible. Makes for easier starting. This is the basic concept of it, but read up on heat cycling to be sure you get it right. If it's below 50 degrees, you should wait for warmer weather.

 

[way2fast]

It's normal. It's spitting fuel out because the factory sets the needles rich for break in. You really should read up on the heat cycle method. You should be driving the truck slowly for 2-3 minutes with temps around 220-240, shutting it off and putting the piston to bottom dead center. Let it cool completely, fire it back up and do it again, ect. You should also use a hair dryer to get the engine as warm as possible. Makes for easier starting. This is the basic concept of it, but read up on heat cycling to be sure you get it right. If it's below 50 degrees, you should wait for warmer weather.

thanks for the reply man. it was getting pretty hot while idling, so i shut it off and let it cool down for 40 seconds, then it fired back up, and i let it running until there was no gas left. I have read the proper procedures and stuff, tomorrow i will be driving it out. Its quite cold outside, but i dont think it should affect anything, i mean, I'm just driving in circles

 

[alien13]

Driving in circles means there is cold air passing through the head. If it's pretty cold out, you should at least wrap the head in aluminum foil.

 

[way2fast]

Driving in circles means there is cold air passing through the head. If it's pretty cold out, you should at least wrap the head in aluminum foil.

its still leaking a bit of fuel from the pipe, I'm wondering if that is really normal? BUt i flooded the engine from the start pretty bad, so i think that should be normal

 

[alien13]

Until the break-in is complete and you tune it, you will have unburned fuel coming from the pipe. What I do, is between tanks, or between starts, tip it so it all runs to the end of the pipe, then dump it out of the hole.

The reason for this is because it is tuned rich for break-in reasons.

 

[Metalhead Matt]

Yeah, the cold does make a big difference in the longevity of the engine. Break in is the most important part of the engines life. If you break it in when it's below 50, because the metal engine components contract at a different rate, this causes the sleeve to squeeze the piston more than it normally would. This leads to premature engine wear. If you break it in when it's cold outside, expect to rebuild/replace the engine in the spring.

 

[way2fast]

Yeah, the cold does make a big difference in the longevity of the engine. Break in is the most important part of the engines life. If you break it in when it's below 50, because the metal engine components contract at a different rate, this causes the sleeve to squeeze the piston more than it normally would. This leads to premature engine wear. If you break it in when it's cold outside, expect to rebuild/replace the engine in the spring.

then ill run it in circles in my basement. But after the full break in is completely done, can i run it outside with no problems??

 

[Metalhead Matt]

It's hard to get a consistent temp in the cold weather. Wrapping the head helps, but you'd have to drive it until your whole house stuck until it was ready to go outside. Nitro exhaust is toxic. Running it in your house wouldn't be very bright. Wait and do it right, or just be prepared to spend around $100 in the spring.

 

[alien13]

Nitro exhaust is toxic. Running it in your house wouldn't be very bright.

Especially when it's rich.

 

[way2fast]

well, i just wanna have fun. I will wrap the cylinder head, and make sure that its sealed and that its keeping a nice temp. Here its below 50, its about 20. I'm not too sure what i should do. I'm thinking i should run it indoors, where its nice and warm

 

[way2fast]

ok guys, i found some thin aluminum foil. So i just wrap that around the pink head??

 

[Metalhead Matt]

I'm thinking your nuts. Your house will stink forever. Besides how bad it is for your health to breath the exhaust.

 

[way2fast]

I'm thinking your nuts. Your house will stink forever. Besides how bad it is for your health to breath the exhaust.

no for outside. Today its gonna be pretty good out side, the snow is kind of melting a bit. My dad washed his car yestarday and it didnt even freeze. And i have another question, How do i set the piston bottom dead centre or whatever ?

 

[Metalhead Matt]

When you turn the flywheel, you'll feel it tighten up as the piston gets to the top of the cylinder. Turn it both directions until it gets tight, and split the difference. Basically, just put it to where it's easiest to turn.

 

[way2fast]

When you turn the flywheel, you'll feel it tighten up as the piston gets to the top of the cylinder. Turn it both directions until it gets tight, and split the difference. Basically, just put it to where it's easiest to turn.

so the piston should sit at the top of the cylinder, or at the very bottom?

 

[Metalhead Matt]

Bottom.

 

[way2fast]

ok ill do that right after i finish running it with the second tank. Ill wrap the head in foil and run it outside for the second tank. Then ill set the piston bottom dead. And, will it work to take the glow plug out with an 8 mm wrench? I forgot to buy the tool, but i have an extension that will fit down the cylinder, but I'm wondering if it will work with an 8mm, or what is the size?

 

[2revo1maxx]

Tin foil, a small sock, I use masking tape. It's all ok to use. Do you have a temp guage? You definitely want the engine to warm up AND be rich when running in the cold. DON'T LEAN IT OUT TO GET THE TEMPS UP! Keep in mind it won't really be broken in for about 10-15 tanks of fuel, assuming it's done right. The cold air coming in will be hard on the engine, causing rapid fluctuations in temperature. Long wide open passes down the street can make the sleeve squeeze down on the piston, shortening the engine's life. It all depends on how much fuel you put through it in the cold weather. Plan on buying a new engine in the spring and try to hold out for at least 30 degree days. Also try to avoid snow or water, you'll have other problems too.

 

[way2fast]

Tin foil, a small sock, I use masking tape. It's all ok to use. Do you have a temp guage? You definitely want the engine to warm up AND be rich when running in the cold. DON'T LEAN IT OUT TO GET THE TEMPS UP! Keep in mind it won't really be broken in for about 10-15 tanks of fuel, assuming it's done right. The cold air coming in will be hard on the engine, causing rapid fluctuations in temperature. Long wide open passes down the street can make the sleeve squeeze down on the piston, shortening the engine's life. It all depends on how much fuel you put through it in the cold weather. Plan on buying a new engine in the spring and try to hold out for at least 30 degree days. Also try to avoid snow or water, you'll have other problems too.

really? I can't wait for that long lol. Winter here is for 8 months. like i said I'm not running it through freezing weather. The weather today will be much better