Revo 3.3 won't start when warmed up
04-25-2007, 08:19 PM
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Revo 3.3 won't start when warmed up
Ok, got a revo 3.3 that runs great. Lot's of power and no problems. Except, after the engine is warmed up (half a tank into a run) if the engine dies due to a crash or just running out of gas, it will not start until it cools down. The engine is tuned right, passes the pinch test, and runs at 230 degress. I tested for air leaks and found nothing. The engine has only had a 2 gallons of fuel ran through it. Any ideas?
04-25-2007, 09:14 PM
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RE: Revo 3.3 won't start when warmed up
Those symptoms are usually one of two things.
Either a poor tune or a loss of compression.
I had an engine once that flipped, knocked off the air filter and ate a piece of trash, scratched the sleeve and would do exactly as you're describing. That engine had less than a gallon through it. It might be worth checking out. You can pull off the coling head and check the cylinder w/o pulling the engine out.
Either a poor tune or a loss of compression.
I had an engine once that flipped, knocked off the air filter and ate a piece of trash, scratched the sleeve and would do exactly as you're describing. That engine had less than a gallon through it. It might be worth checking out. You can pull off the coling head and check the cylinder w/o pulling the engine out.
04-25-2007, 09:45 PM
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RE: Revo 3.3 won't start when warmed up
Try to lean the engine out a little as a test to see if that helps the restart issue. You sound like you know what you're doing but remember not to let the temp go over 280f.
ORIGINAL: utpimp
Ok, got a revo 3.3 that runs great. Lot's of power and no problems. Except, after the engine is warmed up (half a tank into a run) if the engine dies due to a crash or just running out of gas, it will not start until it cools down. The engine is tuned right, passes the pinch test, and runs at 230 degress. I tested for air leaks and found nothing. The engine has only had a 2 gallons of fuel ran through it. Any ideas?
Ok, got a revo 3.3 that runs great. Lot's of power and no problems. Except, after the engine is warmed up (half a tank into a run) if the engine dies due to a crash or just running out of gas, it will not start until it cools down. The engine is tuned right, passes the pinch test, and runs at 230 degress. I tested for air leaks and found nothing. The engine has only had a 2 gallons of fuel ran through it. Any ideas?
04-25-2007, 09:53 PM
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RE: Revo 3.3 won't start when warmed up
make sure the glow plug isnt loose it looses compression when its loose and has a hard time strting back up. if it is to tight teh ezstart wont turn over the engine
04-25-2007, 10:38 PM
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RE: Revo 3.3 won't start when warmed up
i was racing and my car broke so this guy let me use his revo and it was working great then it died upside down and he said that it wont start cause its warm so is it for all the 3.3s?
04-25-2007, 10:46 PM
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RE: Revo 3.3 won't start when warmed up
That was a flame out.
ORIGINAL: pinky2252s
i was racing and my car broke so this guy let me use his revo and it was working great then it died upside down and he said that it wont start cause its warm so is it for all the 3.3s?
i was racing and my car broke so this guy let me use his revo and it was working great then it died upside down and he said that it wont start cause its warm so is it for all the 3.3s?
04-26-2007, 12:17 AM
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RE: Revo 3.3 won't start when warmed up
It sounds like vaporlock but it only happens with aluminum carburetor. Since the 3.3 engine comes with composite carburetor, it shouldn't be the case. I will suggest you rich the high speed needle a little bit.
04-26-2007, 01:18 AM
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RE: Revo 3.3 won't start when warmed up
this may sound stupid but also make sure you have a crush washer on the glow plug, and that there isent any dirt stuck between the cooling head on the block.
04-26-2007, 08:19 AM
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RE: Revo 3.3 won't start when warmed up
I've still seen it happen on composite carbs. There are many good tips in here. I would lean it first, if it's running 230f. then it may be just a little too rich.
ORIGINAL: bigfootrc
It sounds like vaporlock but it only happens with aluminum carburetor. Since the 3.3 engine comes with composite carburetor, it shouldn't be the case. I will suggest you rich the high speed needle a little bit.
It sounds like vaporlock but it only happens with aluminum carburetor. Since the 3.3 engine comes with composite carburetor, it shouldn't be the case. I will suggest you rich the high speed needle a little bit.
