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General Forums => The O' Club => Topic started by: F22RaptorDude on August 19, 2011, 06:46:48 PM

Title: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 19, 2011, 06:46:48 PM
Well it came today, put in some batteries went over the manual, tightened all the screws and testing the radio. Went outside, filled up the gas tank, turned on the transmitter then the car, primed it and tried to start it, nothing happened the first 3 tries (5 seconds of pulling each time so as to not burn out the glow plug), changed some screws around. (First mistake) then tried again and got it to start for about 6 seconds then it died after I removed the glow starter. I toiled with it a bit more and flooded the engine so I had to drain it. I tested the glow plug and it worked so I put it back in and tried again, started for a few seconds but when I removed the glow plug after it being started up for a few seconds it died. So by now I was really frustrated  and put the car in the garage and waited for my dad to get home where we tried it again. As it turns out I overlooked some information in not only the manual but on the glow starter itself, I charged it for 30 mins when I got it, the side said 2-4 hours before use, and I overlooked spinning the master needle to the left 3 times (fail again) I got to anxious and inpatient and now i'm paying the price and even worse I was sure I looked at everything, I went over the manual 3 times. I figure the reason it won't start is because the glow plug isn't hot enough? so I'm charging it for a few hours then trying again. I drained the fuel tank back into my bottle, and from the exhaust I poured it onto my driveway (Is fuel coming out of the exhaust bad?) and i'm letting it sit for a while before I try again to break it in. and I know MAJOR (http://fc04.deviantart.net/fs45/f/2009/101/b/e/FACEPALM__Jack_Skellington_by_A_S_K_08.jpg)



Anyway can I get any help or tips? I Think I might have messed with the idle screw to much and now I don't know where to put it at...
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: PFactorDave on August 19, 2011, 07:10:15 PM
Fuel coming out of the exhaust is bad, over primed most likely.  Don't confuse that with the oily stuff that comes out the exhaust when it is running, that is normal.

If you over primed, the excess fuel can cause the glow plug to not be hot enough.  

Did you fiddle with the idle screw on the carb? ((EDIT:see that you did.  Doh!)   If so...  Don't do that any more.  Read the manual and find the default idle screw setting and put it back.  Fiddling with the idle screw shouldn't prevent it from starting so much as make it die or refuse to run at idle speed.

Be sure to closely follow the starting and break instructions for needle valve settings.  You want to run a tank or two or three through it very very rich before running it lean and driving it.  

When starting, open the throttle about halfway to start.  If it doesn't start, close the throttle a little bit and try again, etc.  There should be instructions for throttle settings in the manual that came with the engine.   I like to prime by squirting just a few drops of fuel into the carb.

Keep in mind that I fly the airplanes, I expect that the process is the same (more or less) for the cars.  Also, hand starting a brand new nitro engine can be frustrating.  I always use a starter now days, much easier.

What brand is the engine?  Some are pickier then others.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 19, 2011, 07:29:20 PM
28CPX I don't know what that means but the car is made by Exceed http://www.nitrorcx.com/exrc1scnigas1.html (http://www.nitrorcx.com/exrc1scnigas1.html) I primed it until the fuel reached the carb then stood at an angle on the wheels put the starter in and pulled it. But almost immediately after I pulled it out the engine died. I'm going to try again in 30 mins to start it cause it would have charged for 3 hours. As for the idle screw the picture isn't clear on the position is should be in because its in black and white. I didn't move it far, and i'm going on a hunch I moved it close to where it was when it came.

One of the instructions was to turn the master screw 3 times counter clock wise, so I set it to default and did that, checking the air is hard because behind the foam is a tube that curves and I can't get it off because there's a zip tie on it ad the fuel line goes around it so I don't want to mess anything else up.

What do you mean by open the throttle half way?


As a side note I was very impressed with the car, parts were aluminum like advertised and everything was on nothing missing at all, and the parts were thick and look durable. I'm very impressed with the look. If I can't get it started tonight i'll take it to my hobby shop tomorrow and have them look at it, they don't stock any exceed parts but Its just the engine I need help with I don't need any parts.



Edit: And the liquid that came out of the tail pipe was orange like my fuel and quite a bit came out.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: kamori on August 19, 2011, 07:34:47 PM
Change to a NEW glow plug 1st. That is the best and easiest place to start. After that take your Low speed(idle screw) and turn it in until you bottom it out GENTLY Now back it out 1 1/2 turns. Next do the same with your High-speed needle and back it out 2 - 2 1/2 turns. That will be a starting place.

Remember the more out the needle is the richer air fuel mixture will be.

Now try to start it, if it doesn't start in 3 - 5 pulls then STOP and remove your glow plug. Look at it and see if its wet or dry. if its wet go 1/4 turn in on your idle screw. If its Dry go out 1/4 turn Don't move your High-speed needle.

Repeat until it starts.

Next pull your glow starter dont let it idle too long. Slowly accelerate and see what it does if it dies immediately and you close to only 1 turn out on the low speed needle then your too lean go 1/4 turn out. If it stumbles then its running rich and go in 1/8 turn. Now start adjusting your Highspeed needle. The same applies. Accelerate and go to full speed NOW while running turn in your Needle(highspeed) until it starts to stumble Now back it out until you have MAX RPM. Once you have that go out another 1/8 to 1/4 turns. You don't want to run too lean it will destroy your motor.

NOW LETS TALK TRANSITION.

1st start it and rev it up to burn off any excess fuel left fro starting. Once thats done let it idle for 10 seconds...Now Go full throttle if its smooth with out a stumble then your done. If it stumbles turn idle screw in 1/16th. . Listen to the motor and trust what you hear...in time you can tell the difference between a rich sounding motor or a lean one...

Kam
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: PFactorDave on August 19, 2011, 07:38:30 PM

What do you mean by open the throttle half way?


Just like it sounds, on your radio control advance the throttle about halfway.  This will open the carb up a little allowing more air into the engine.

I wouldn't worry too much about the idle screw at this point if you think it is close to where it started.

If the engine starts, runs but dies when you take the glow plug battery off, then the engine is probably running too rich.  Is the engine idling when you unhook the glow plug?  If so, you might try turning the needle valve a halfturn or less clockwise to lean it a little.  Be careful doing this though, you don't want to run it too lean during break in.  Make small changes, test, then small changes.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 19, 2011, 09:47:40 PM
I was able to get it started thanks to you guys!!! Thank you so much! I ran it through 4 tanks at idle (for some odd reason it kept revving up randomly so I had to keep turning the idle needle counter clock wise to keep the wheels from spinning which they would randomly do through the tank, just rev up and spin for a few seconds than go back to idle?), filled the tank up before it ran dry and on the 5th tank took it around my back yard but it stopped the first few feet so I Adjusted the needles clockwise and took me 20 minutes to start again cause I kept flooding the chamber but I eventually got it running around my back yard at 1/4 throttle. Had to cut it short though because neighbors weren't happy about the noise at 10:30 at night, but Its done now so all I have to do is tune it right to bring out its full potential. and also show the fat kid down the street that his crappy walmart cars aren't as fast as he thinks  :D
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 20, 2011, 09:40:05 PM
Update: Had some more problems so I went to my hobby store got some tips and a  temp gauge for the engine (It was the only reason I got the master needle right)and toiled with the needles for a few hours and at 9 when it was dark it finally sounded like it does in all the video's on you tube and I can gun it without it stalling and randomly rev it without it stalling either. AND LET ME TELL YOU THIS THING WILL BOOK IT!!!! I'm shooting video tomorrow and will hopeful have a music video up or something tomorrow evening or monday afternoon. This thing is a blast I'm so glad it worked out for me!
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: MrRiplEy[H] on August 21, 2011, 12:33:30 AM
Hmm Nitro car could be a Dodge or any car with NOS. Might want to use the magic letters R/C?
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 21, 2011, 09:32:37 AM
Hmm Nitro car could be a Dodge or any car with NOS. Might want to use the magic letters R/C?
Sorry my bad I keep forgetting to put that  :uhoh


In other news i'll have a demo video up on my channel in a bit today and will work on a form of music video within the next few days.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: icepac on August 21, 2011, 10:51:55 AM
Nitro refers to the fuel.

The only dodges running nitro are top fuel, funny cars, or some other non-streetable car.

N20 is nitrous oxide.

NOS is a company who makes nitrous oxide injection kits.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: A8EJay on August 21, 2011, 11:24:26 AM
Never really understood why they call rc fuel "nitro".  The fuel is between 10-30% nitromethane (for cars/trucks) 8-18% oil (usually klotz synthetic with maybe a mix of castor), and the rest is methanol.  Probably because it sounds cool....?

http://www.rcuniverse.com/forum/   You could always do some reading there.  Alot of good info and helpful people.  Just don't mind the haters over there.  Theres alot of people on that forum whos opinion is that the only good rcs are the ones they own...

Edit again  :cheers:  There is even an Exceed nitro vehicle section in those forums.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: Killer91 on August 21, 2011, 02:27:18 PM
Never really understood why they call rc fuel "nitro".  The fuel is between 10-30% nitromethane (for cars/trucks) 8-18% oil (usually klotz synthetic with maybe a mix of castor), and the rest is methanol.  Probably because it sounds cool....?

http://www.rcuniverse.com/forum/   You could always do some reading there.  Alot of good info and helpful people.  Just don't mind the haters over there.  Theres alot of people on that forum whos opinion is that the only good rcs are the ones they own...

Edit again  :cheers:  There is even an Exceed nitro vehicle section in those forums.

Maybe so they can charge more for it? lol

Nitro fuel is around $30 a gallon. Even worse for me is I have to either drive 60+ miles to get it or have it shipped to me. Small towns suck  :bhead :bhead
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 21, 2011, 03:21:59 PM
Maybe so they can charge more for it? lol

Nitro fuel is around $30 a gallon. Even worse for me is I have to either drive 60+ miles to get it or have it shipped to me. Small towns suck  :bhead :bhead
Its a 45 min drive, and my fuel is running out fast because i'm having so many problems with the engine. It keeps drying up the fuel lines and I loose fuel priming and such. And I don't know if the engine sounds good or not
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: 68ZooM on August 21, 2011, 04:37:37 PM
what do you mean by drying up, you mean fuel from the Tank in the line to the Carb? if so make sure you have a real good seal on that fliptop gas tank.

you can check it by disconnecting both tank lines ( carb and at the muffler) plug the Carb line and gently blow in the other line and see if pressure builds or it leaks off, the engine requires pressure from the Muffler into the Tank for proper fuel flow.

 I'm not a fan of the fliptop tanks because there know to have issues so check that gasket for damage or a foreign object, also check your fuel pickup. It's also good to use little zip ties to secure lines better to the connections. just keep trying man thats how we all got started.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: MoJoRiZn on August 21, 2011, 05:10:38 PM
Hmm Nitro car could be a Dodge or any car with NOS. Might want to use the magic letters R/C?


Nitro refers to the fuel.

The only dodges running nitro are top fuel, funny cars, or some other non-streetable car.

N20 is nitrous oxide.

NOS is a company who makes nitrous oxide injection kits.

really?

2011 Dodge Nitro
http://www.dodge.com/en/2011/nitro/index.html


Mojo
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: Golfer on August 21, 2011, 05:32:48 PM

really?

2011 Dodge Nitro
http://www.dodge.com/en/2011/nitro/index.html


Mojo


Those most definitely don't use nitromethane as fuel. 
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: Tupac on August 21, 2011, 05:45:12 PM

really?

2011 Dodge Nitro
http://www.dodge.com/en/2011/nitro/index.html


Mojo

Lol
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: 68ZooM on August 21, 2011, 05:47:14 PM

really?

2011 Dodge Nitro
http://www.dodge.com/en/2011/nitro/index.html


Mojo

Thats the Model Name Dodge Gave it to appeal to the Sport SUV crowd. Still an SUV never the less.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 21, 2011, 07:11:22 PM
what do you mean by drying up, you mean fuel from the Tank in the line to the Carb? if so make sure you have a real good seal on that fliptop gas tank.

you can check it by disconnecting both tank lines ( carb and at the muffler) plug the Carb line and gently blow in the other line and see if pressure builds or it leaks off, the engine requires pressure from the Muffler into the Tank for proper fuel flow.

 I'm not a fan of the fliptop tanks because there know to have issues so check that gasket for damage or a foreign object, also check your fuel pickup. It's also good to use little zip ties to secure lines better to the connections. just keep trying man thats how we all got started.
It leaks sometimes and I can't prime it due to negative pressure being lost, but most of the time it holds and I can get the car started, I just came back from a very successful run at my high school and should have a video up in a bit, I need some help knowing if it sounds good or not, I set low end needle with the fuel line pinch test and adjusted the high end with temperature (I got a hand held laser thermometer) and the idle... well idk it idles at a low rpm without a problem so i guess thats a good sign, and it starts up by the 5th pull now. It does stall periodically when I first start it and warm it up but once I get it going it really goes with only half throttle, I simply don't have enough room to go full to the floor. So I think I tuned it right? Anyway I'll post the video on here when its off my phone and have yall decide if it sounds tuned or not.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: TequilaChaser on August 21, 2011, 07:38:18 PM
looks like mojorisin was refering to MrRipleys comment about nitro refering to a Dodge perhaps........ to where the other guy says something else about dodges not running nitro unless they are racecars or offstreet vehicles

one could argue, the Dodge Nitro is running the "Nitro Badge" on its body  <evil grin>


NOS also makes energy drinks for human consumption ;)

that was a far stretch ya was reaching for mojorisn, lol


<S>

TC
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: PFactorDave on August 21, 2011, 07:43:45 PM
It leaks sometimes and I can't prime it due to negative pressure being lost, but most of the time it holds and I can get the car started, I just came back from a very successful run at my high school and should have a video up in a bit, I need some help knowing if it sounds good or not, I set low end needle with the fuel line pinch test and adjusted the high end with temperature (I got a hand held laser thermometer) and the idle... well idk it idles at a low rpm without a problem so i guess thats a good sign, and it starts up by the 5th pull now. It does stall periodically when I first start it and warm it up but once I get it going it really goes with only half throttle, I simply don't have enough room to go full to the floor. So I think I tuned it right? Anyway I'll post the video on here when its off my phone and have yall decide if it sounds tuned or not.

If you post a video, it would be helpful to see you start it and tune the needle while being able to hear it.  On my RC airplanes, I do 99% of the engine tuning by ear.  Unfortunately, I can't offer much advice on the fuel tank issue.  Apparently RC car fuel tanks are different the aircraft tanks.

Don't know if this will help you, but on an aircraft, once the engine is running and I think I have it tuned I pick up the plane and briskly point the nose almost straight up.  The fuel mixture will lean out a bit, and the engine will die or nearly die if set too lean.  Then I point the nose nearly straight down.  If it is too rich it will die.  This just a quick and dirty method of testing your fuel mixture on an RC plane, not sure if you can do something similar with a car or not.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 21, 2011, 08:07:27 PM
If you post a video, it would be helpful to see you start it and tune the needle while being able to hear it.  On my RC airplanes, I do 99% of the engine tuning by ear.  Unfortunately, I can't offer much advice on the fuel tank issue.  Apparently RC car fuel tanks are different the aircraft tanks.

Don't know if this will help you, but on an aircraft, once the engine is running and I think I have it tuned I pick up the plane and briskly point the nose almost straight up.  The fuel mixture will lean out a bit, and the engine will die or nearly die if set too lean.  Then I point the nose nearly straight down.  If it is too rich it will die.  This just a quick and dirty method of testing your fuel mixture on an RC plane, not sure if you can do something similar with a car or not.
I nosed it down and it revved up and died shortly after, it does work upside down though cause I have flipped it at least 5 times since I got it, no damage at all except for a scratch on the spoiler   :lol I'm getting better at managing turns. Video will be up shortly
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: PFactorDave on August 21, 2011, 08:11:43 PM
I nosed it down and it revved up and died shortly after, it does work upside down though cause I have flipped it at least 5 times since I got it, no damage at all except for a scratch on the spoiler   :lol I'm getting better at managing turns. Video will be up shortly

Probably died because the feed line in the fuel tank (the clunk) stayed at the bootm of the tank while the fuel all moved away from the clunk.  So, the engine was no longer drawing fuel.  It revved up as the mixture leaned (due to loss of fuel) and then died when it no longer had enough fuel to continue running.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 21, 2011, 09:05:55 PM
Probably died because the feed line in the fuel tank (the clunk) stayed at the bootm of the tank while the fuel all moved away from the clunk.  So, the engine was no longer drawing fuel.  It revved up as the mixture leaned (due to loss of fuel) and then died when it no longer had enough fuel to continue running.
I figured that much, problem with the video bear with me
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 21, 2011, 10:03:09 PM
Is nitro fuel bad for you if it gets on your hands or in cuts? I got mine in the sores from my hands and i'm feeling sick 3 days later
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: Golfer on August 21, 2011, 10:06:00 PM
Fatal if you don't have a dialysis treatment within 72 hours.  Plays hell with your arteries.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: Meatwad on August 21, 2011, 10:09:44 PM
(http://fc04.deviantart.net/fs45/f/2009/101/b/e/FACEPALM__Jack_Skellington_by_A_S_K_08.jpg)



Anyone else find the look on its face disturbing?
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 21, 2011, 10:14:15 PM
Fatal if you don't have a dialysis treatment within 72 hours.  Plays hell with your arteries.
its been three days and I'm just now starting to feel sick, I'm really congested out of the blue and a little queesy
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: Golfer on August 21, 2011, 10:23:40 PM
its been three days and I'm just now starting to feel sick, I'm really congested out of the blue and a little queesy

Well by all means keep thinking about it then and convince yourself you're sick because of it.

Your option is to be like the rest of the world and know you're going to be just fine. And don't wash your hands in glow fuel.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: Meatwad on August 21, 2011, 10:27:56 PM
If your really paranoid.......here is the MSDS

http://www.mallchem.com/msds/englishhtml/N5740.htm
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: MaSonZ on August 21, 2011, 10:29:12 PM
its been three days and I'm just now starting to feel sick, I'm really congested out of the blue and a little queesy
if it can be fatal and fudge with your arteries, go to the doc get their input. dont wanna be messin up your body for good while a young teen.


arthritis in my right knee, and my right collar bone where i broke it is slowly acting up. only 17 and im dealin with this, not fun. get yourself looked over from a doc. get a list of things nitro fuel can do to you and have a doc order bloodwork and the sorts if you so desire.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: PFactorDave on August 21, 2011, 10:43:45 PM
Is nitro fuel bad for you if it gets on your hands or in cuts? I got mine in the sores from my hands and i'm feeling sick 3 days later

It'll burn like hell in an open cut.  I wouldn't worry about it.  If it was dangerous to get on your skin or in cuts I would have been dead 20 years ago.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: 68ZooM on August 21, 2011, 10:46:09 PM
well if you dont have a airtight seal on your fuel system that engine will never run right.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: james on August 21, 2011, 11:55:56 PM
I used to use high temp RTV on the carb where it meets the engine and especially on the backplate behind where the pull starter goes. I'd let it dry and use mccoy #8 plugs. Used to live in FL so medium plugs worked well year round but had to run it mostly rich because of the humidity.
Title: Re: Well this utterly sucks (Nitro car problems)
Post by: F22RaptorDude on August 22, 2011, 03:05:29 PM
It'll burn like hell in an open cut.  I wouldn't worry about it.  If it was dangerous to get on your skin or in cuts I would have been dead 20 years ago.
I read in school today, that the lethal amount of methanol is 3-4 tsp if ingested, I know I didn't get anywhere close to that much on me so I think i'm good, plus compared to last night I feel a heck of alot better.

well if you dont have a airtight seal on your fuel system that engine will never run right.
I put pressure on it and don't run until no fuel leaks on the side, it works fine as it is right now.