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Echo bp blower leaks gas

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Echo bp blower leaks gas

Postby londi430 » Sat Mar 08, 2014 1:52 pm

I own echo back pack blower PB 620, went to start for the 1st time this year and there is gas coming out of the exhaust, and the spark plug is wet. Clean the carb, and the spark plug, same thing happen. Could this be case of bad gas. Thanks Londi
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Re: Echo bp blower leaks gas

Postby KE4AVB » Sat Mar 08, 2014 2:02 pm

First one question. Is this engine running?
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Re: Echo bp blower leaks gas

Postby bgsengine » Sat Mar 08, 2014 3:07 pm

Yes. also turn the unit upside down so spark plug hole is pointing down,Shut off the switch, remove plug, crank engine over slowly a few times, then crank it fast a few, repeat until it stops blowing gas out - if you got a carb leak (Probably leaking metering needle, ruptured diaphragm or a bad check valve - the first 2 fixable, the last , calls for a new carb if it cant be cleaned to not leak) - if you leaked enough gas to pump it out the exhaust, your crankcase is probably full of gas too, and you'll continue to see the issue until it is cleared out - maybe you did fix the carb but it'll still have raw gas in crankcase that needs cleared out.
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Re: Echo bp blower leaks gas

Postby StarTech » Sat Mar 08, 2014 4:44 pm

Harden metering valve diaphragm can cause the metering needle to stay open. A leaky carburetor is easily enough to check off the blower with fuel lines hook to it. If it is leaking it run out even when it not on the engine just from the fuel pressure from the tank.

Also can be a struck ring causing low compression; hence, unburnt fuel being push out the muffler.
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Re: Echo bp blower leaks gas

Postby londi430 » Sun Mar 09, 2014 8:51 am

The blower did leak gas from just sitting. I will take the spark plug out, flip it and pull the cord, to get the gas out. If that does not work will rebuild carb or get new one. Thanks for all your help.
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