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Old 07-27-2005, 12:31 PM   #1
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Default fuel wont go into carb

Hi there, When the car is on the starter box with the wheel spinning, fuel is supposed to enter the engine but no fuel through the fuel tube at all. Can anyone help?

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Old 07-27-2005, 12:39 PM   #2
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Have you primed the carb? Do you have a small pump on the fuel tank? If so then push it a couple of times until fuel starts to flow through the pipe. If you don't have anything on the tank then maybe you have a small pump on the fuel filter, again, sqeeze it a couple of times till the fuel starts to fill the pipe.

If non of this works then it sounds like you may have a vacume in your tank that isn't letting fuel out or the nozle on the fuel tank that the fuel pipe connects to has a blockage. Try taking the fuel pipe of & gently blow into the nozle on the tank that the exhaust tube connects to, fuel should start to trickle out of the fuel nozle. If it doesn't then it sounds like you may have a blocked fuel tank nozle.
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Old 07-27-2005, 12:47 PM   #3
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Quote:
Originally Posted by silacomalley
Have you primed the carb? Do you have a small pump on the fuel tank? If so then push it a couple of times until fuel starts to flow through the pipe. If you don't have anything on the tank then maybe you have a small pump on the fuel filter, again, sqeeze it a couple of times till the fuel starts to fill the pipe.

If non of this works then it sounds like you may have a vacume in your tank that isn't letting fuel out or the nozle on the fuel tank that the fuel pipe connects to has a blockage. Try taking the fuel pipe of & gently blow into the nozle on the tank that the exhaust tube connects to, fuel should start to trickle out of the fuel nozle. If it doesn't then it sounds like you may have a blocked fuel tank nozle.
Sorry newbie here, what is prime?

Nope no pump on the tank nor the fuel filter.

When i gently blow into the nozle, fuel does coem out both ways.

Any ideas?

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Old 07-27-2005, 01:18 PM   #4
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bump
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Old 07-27-2005, 01:30 PM   #5
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Ok, the first thing I would do is go to your local hobby store that stocks r/c spares & ask to purchase a fuel filter with a fuel pump on it, would be cheaper than buying a new tank with a pump on it.

Otherwise, to get started straight away, while the fuel pipe is attached, detach the exhaust pipe from the tank & gently blow until the fuel line is full & the carb is flooded slightly. From there, try to start her up!

If the engine starts though don't forget to replace the exhaused pipe to the tank.
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Old 07-27-2005, 03:13 PM   #6
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check compression....the sleeve might be loose around the piston
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Old 07-27-2005, 03:16 PM   #7
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Cover the stinger on your pipe with your thumb, so the back pressure from your pipe can delivered to the fuel tank to pump the fuel to the carb....
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Old 07-27-2005, 04:00 PM   #8
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thanks guys the engine started however during idle the wheel spins, however when i make the carb hole a bit smaller by screwing out the throttle-stop screw, for the next start the engine wont start anymore.

and also the engine stalls when i apply the brakes. any help would be appreciated.

oh the engine is the os .12tr
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Old 07-27-2005, 04:17 PM   #9
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Cool

you still got the engines manual?
it should say to open your carb some #mm.
your engine stals because when you brake, you close the carb to much.
turn open the carb hole by turning the idle screw 1/8 a turn. keep doing this till the engine fires up. set your car on the ground. is it moving then close the carb 1/8 a turn. if its standing still then you got the correct setting for the idle.
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Old 07-27-2005, 04:23 PM   #10
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Quote:
Originally Posted by pedal2thametal
you still got the engines manual?
it should say to open your carb some #mm.
your engine stals because when you brake, you close the carb to much.
turn open the carb hole by turning the idle screw 1/8 a turn. keep doing this till the engine fires up. set your car on the ground. is it moving then close the carb 1/8 a turn. if its standing still then you got the correct setting for the idle.
yup it says 0.3 -0.5mm and do i turn the screw while theengine is on or off?
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