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Old 11-04-2008, 11:56 AM   #1
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Default OS VZB S-Spec Problem

Hello guys

I got a problem with my Vspec. First of all i use in new plug OS P3 and in pipe of GRP 2053.

Everything was ok before a few days and suddenly the engine start to do the problem in the start,when i start him i give him to work without to do anything for a 1 min and later i give him to be a hot 90-80C.

after this i down the car from the startbox and start to drive and when i want to get a full-gaz the engine is scream and shut down.
with the booster the engine is not shutdown and after i give him a 2-3 full-gaz on the place with a booster the engine work very well.

s0z on my "good" english :\

Thank for all
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Old 11-04-2008, 12:02 PM   #2
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Engine sounds like its too lean. Mostly on the bottom needle, thats why it shuts off. Most likely its too lean on both needles.
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Old 11-04-2008, 12:34 PM   #3
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You say me to close the main needle? [needle of the Temperture].
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Old 11-04-2008, 12:45 PM   #4
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Open the main and low a little. Richen them both up.
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Old 11-04-2008, 12:51 PM   #5
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The main and the low is open the most Temperture is 105C
and the low is open.
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Old 11-04-2008, 01:02 PM   #6
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How many turns on both top and bottom? What is the weather like (Humidity, temperture)?
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Old 11-04-2008, 01:13 PM   #7
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I'm not remmber the turns but I'm very sure and can say you the engine is very "rich" in a fuel.

the humdity is 30% and the temperture is 24-27C
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Old 11-04-2008, 01:21 PM   #8
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Have you checked for air leaks? How old is fuel line?
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Old 11-04-2008, 01:31 PM   #9
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no leaks that I see. and the fuel is a new gallon

Cool Power 30% Nitro 22%Oil

Maybe the pipe of GRP2053 isn't work with the engine? or i "fall" on a new bad plug of OS P3?
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Old 11-04-2008, 03:19 PM   #10
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22% oil???? Are you sure about that?
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Old 11-04-2008, 03:28 PM   #11
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Cool Power is nitro for helicopters, and yes it does have 22% oil. You shouldn't be using that fuel in a V-Spec. Most car nitro has half the oil content.
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Old 11-04-2008, 03:35 PM   #12
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It does sound like an air leak. Seeing that you got an RC8, check the tank to make sure it's not cracked or anything. Also check the exhaust seals (both the one on the exhaust port and on the connection). Also make sure the carb is seated well into the crankcase. After checking all that, go back to the stock settings for all 3 needles and start tuning from there.
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Old 11-06-2008, 11:04 AM   #13
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Quote:
Originally Posted by ehartman_49348 View Post
It does sound like an air leak. Seeing that you got an RC8, check the tank to make sure it's not cracked or anything. Also check the exhaust seals (both the one on the exhaust port and on the connection). Also make sure the carb is seated well into the crankcase. After checking all that, go back to the stock settings for all 3 needles and start tuning from there.
did you figure it out? how is it working now?
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Old 11-06-2008, 11:11 AM   #14
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Firast of all i want to say a BIG THANKS for all the helpers!

Yesterday i out the engine from the car and see a oil under the engine...
i clean it and now i need to check if this oil\fuel get out from the fron bearing of the engine..

Thanks.
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