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overheating all the time

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tam13

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whenever i run my maxx it starts to smoke from the head which to me means that its overheating. the head is not wet and its like around 75 degrees outside. no matter how much i richen it it still smoke from the head. i have already richened it more than enough and the same thing happens. what could be causing this.
THNX
 
Have you checked to see if you're glow plug and head bolts are down tight?
 
yup checked all of that and nothing wrong also when i run it for a while and i hit the brakes it will shut off. it does that pretty much everytime i run it for like 10 mins.
 
Have you put after run engine oil in it recently?? If so, this may be the reason for your steam/smoke. Just my .02

Woody
 
Did it burn out completely from the engine? Have you taken the temp from the engine? Have you cleaned thoroughly and inspected where this mysterious smoke could be coming from?
 
Ouch, Well on my maxx I'm having a overheating possible problem 2. Its like lately when I'm running it, It just shuts off and is really hard to start up. I've never had any of my cars smoke tho... Hmmm... Is Your engine excessivly lean?? If it was then when your richening the motor.. its keeping that temp. And its not doing any good b/c of how high your HSN is . I hope I helped a little. Hope you get her runnin good soon. Cya Man!

Also... I had this problem with my Nitro evader I used to have... It would smoke just like yours but it was only temping out at 248*. What the problem was is that the fuel line that goes from the tank to the carb. had a small hole in it. It would slowly leak fuel onto the head where its the hottest. Then it would produce smoke b/c of the burning. Wierd huh....
 
Your engine could be overheating or it could just be normal. These things run between 200 and 300 degrees Farenheit. If it was overheating, it could be running at an even higher temperature.

Now, take that heat and apply some oil or dirt or fuel overspray...and it will tend to smoke. If it is smoking profusely, the heat could be cooking off some protective coating that may have been applied to the cooling head.

Until you know the actual temp of the engine (a temp gun is a great help here), you only have a smoking engine.

The first thing I would do would be to check some of the following:
1. Check to make certain all head bolts are nice and snug for the cooling head. They will tend to loosen on their own after a while just from the vibration of the engine running. A loose head would cause smoke to be forced out from near the base and through the exhaust port.
2. Check to make certain your glo-plug is all the way snug and that the washer (they tend to be slightly concave to one side) is facing the right way...concave side or funneled side going into the hole of the cooling head. If the glo-plug is loose, you can still run the engine, but the performance may not be as sweet and you might get smoke, fuel, and oil forced out around the glo-plug. Now add the nice heat from a running engine...and viola smoke from the head of the engine.

Once you have figured out actual temps when this occurs, you can help us further isolate the problem. Until then, all we can give you are educated guesses.
 
well i have the same problem it shuts off and the head starts to smoke and is very difficult to start. i checked for holes in the fuel line and nothing. really i have no idea to what it can be. the only thing I'm thinking is that it could be the piston and sleeve but i have no idea.
 
tam13

This new information certainly points to an overheating engine. If you have palyed with the carb and it still acts this way, then you are most lilkely suffering an air leak somewhere. Check the two things I listed above, and continue with these:

1. Check to make certain your fuel tank is not cracked.
2. Check to make certain your fuel filter is not dirty or partially blocked (this would cause the engine to run lean no matter what you set your needles at).
3. Check your carb to make certain you have a good seal in all respects. Check the neck into the throat of the engine to make certain it is snug and sealed. Check all needles to make certain the gaskets that seal them are in good shape. Check the needles to make certain they are not obstructed or damaged (again something that could cause a lean condition no matter how the needles are set).
4. Check the fuel lines for good integrity.
5. Check the exhaust header for a good gasket.

From there, you are looking at some bigger problems.
 
ok thnx alot sky i will go check right now and let you know
 
I'll check back tomorrow. It's past midnight on my side of the US. Gotta get some sleep.
 
ok just checked everything. no crack in the tank.the screws were all tight.the carburator was on good.needles were all good. but one thing i noticed was that there was some stuff in the fuel filter. not alot but will a little bit make a difference.other than that everything was good.i also remember me spraying some nitro blast on the engine.
 
The little bit in the fuel filter could make a huge difference. If it obstructs fuel flow, then the engine will always run lean.

The nitroblast on the cooling head could be burning off and resulting in some smoke.
 
a temp gun would beareally good investment so you can see the actual temps yur running at they hep alot also make sure your getting a good seal at your carb and bacplate even use some silicone sealet to be ure your not

i also have to get some sleep too I'm over on the east coast too like sky
 
ok i ran it today and no smoke no more.but i still have a problem with it dieing out like after 5mins.what could this be.
 
I think we solved the problem with the disclosure of the nitroblast usage.

As for the death after five minutes, I'd say your needles probably could use some more tweaking. Can you give some more details on the death. Like what was going on (WOT, idle, slow moving, etc.) Does it die when you give it gas or when you let off the gas?

The more details you provide, the easier it is for us to help solve your problem.
 
ok well i will be running it and it will be halling ass and when i come to a complete stop it just dies out.I've been looking and looking and i can't find nothing.
 
LOL...wouldn't expect you to. This is an indication that you are running on the lean side. When you drop the hammer, the engine exhaust pressurizes the tank and forces fuel to the carb. When the engine is tuned lean, the engine is happy to have the throttle on as it is being fed the fuel, but when you take the throttle input away that fuel feed slows to a trickle and can stall the truck out.

I would recommend that you richen up your HSN setting about 1/4 turn and see what that buys you. Remember, you want to see a decent trail of bluish smoke coming from the exhaust when you are running. This should be a fairly steady thing throughout (no matter what throttle setting). Tweak the HSN as I said and let me know how things go.

If you really want to do this right, reset to factory pre-sets for the needles and tune from there. Just try and keep it on the slightly rich side.
 

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