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My Echo PB413H leaf blower stalls after 20 min. use.

Customer Question
My Echo PB413H leaf blower stalls after 20 min. use.
Submitted: 1 year ago.Category: Small Engine
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Answered in 3 hours by:
10/30/2016
Technician: Donald, Small Engine Technician replied 1 year ago
Donald
Donald, Small Engine Technician
Category: Small Engine
Satisfied Customers: 2,232
Experience: I have 25+ years of experience repairing 2 & 4 cycle engines
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Hello. Thank you for choosing Just Answer. My name is***** will be happy to assist you.

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Technician: Donald, Small Engine Technician replied 1 year ago

Will your engine restart after it stalls?

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Customer reply replied 1 year ago
after it cools off. than it works for 20-25 min and stalls.
Customer reply replied 1 year ago
I did change carburetor, all filters, fuel lines.
Customer reply replied 1 year ago
Posted by JustAnswer at customer's request) Hello. I would like to request the following Expert Service(s) from you: Live Phone Call. Let me know if you need more information, or send me the service offer(s) so we can proceed.
Technician: Donald, Small Engine Technician replied 1 year ago

I am back with you. sorry for the delay. Are you requesting a phone call?

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Customer reply replied 1 year ago
no we can write
Customer reply replied 1 year ago
Do you have an answer
Customer reply replied 1 year ago
do you have a chat window
Technician: Donald, Small Engine Technician replied 1 year ago

Thanks for letting me know. There is a possibility that your compression could be dropping too low, after your engine heats up.

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Technician: Donald, Small Engine Technician replied 1 year ago

Do you have a compression tester?

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Customer reply replied 1 year ago
No i do not
Customer reply replied 1 year ago
How I can check without tester
Technician: Donald, Small Engine Technician replied 1 year ago

No problem. Are you familiar with removing your muffler?

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Technician: Donald, Small Engine Technician replied 1 year ago

When you have a chance, remove your muffler, to see if you notice any scoring on your piston and cylinder.

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Technician: Donald, Small Engine Technician replied 1 year ago

If your piston or cylinder has some wear, it can get worse as your engine heats up.

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Customer reply replied 1 year ago
you mean like a scraches
Customer reply replied 1 year ago
I can get new piston and rings do you think if I change this It will work
Technician: Donald, Small Engine Technician replied 1 year ago

Yes, like scratches. Keep in mind that heats causes expansion. If you already have a small amount of compression lose when your engine is cold, it will gradually decrease more as you operate your engine.

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Customer reply replied 1 year ago
But when it is cold it works fine with full power.
Technician: Donald, Small Engine Technician replied 1 year ago

I agree. The other possibility could be a lose of spark, after you run your engine for 20 minutes.

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Technician: Donald, Small Engine Technician replied 1 year ago

Have you checked for spark, immediately after your engine dies?

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Technician: Donald, Small Engine Technician replied 1 year ago

These are troubleshooting questions, to help pinpoint our problem.

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Customer reply replied 1 year ago
the spark is ok. If I lower the power after it starts to stall it works on idle fine for about another 5min and than it stalls.
I have to wait 30 min for the blower to coll of and it works again
Customer reply replied 1 year ago
Why It works on idle.
Technician: Donald, Small Engine Technician replied 1 year ago

Thanks for this information. I would remove your muffler, then go from there. It will also be great if you can borrow a compression tester.

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Customer reply replied 1 year ago
How do i use the tester if it very hot.
Technician: Donald, Small Engine Technician replied 1 year ago

You would just remove your spark plug, then insert the tester in your spark plug hole. You can use gloves as you are doing this.

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Customer reply replied 1 year ago
What is the normal compression when it is hot
Technician: Donald, Small Engine Technician replied 1 year ago

100 psi or up ...

Video - Click Here

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Customer reply replied 1 year ago
Ok I will get a tester and try it. If it is less then 100 psi is this mean I need a new cylinder?
Technician: Donald, Small Engine Technician replied 1 year ago

Very good! I would look at cylinder and piston through your muffler, just to be sure the parts are bad. The problem could be rings only.

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Customer reply replied 1 year ago
OK Thanks
Technician: Donald, Small Engine Technician replied 1 year ago

You are very welcome!

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Customer reply replied 1 year ago
Hi!
I just got a compression tester and I tested on cold and hot and it is more than 100psi.
So it is fine but the blower has the same problem.
I do not know what to do any more maybe just trow away what do you think.
I just hate to do this it is not very old blower.
Technician: Donald, Small Engine Technician replied 1 year ago

Thank you for checking. You have already checked to see if you are still getting spark to your spark plug after your engine stalls. You stated that your spark is ok. Have you tried a new spark plug? Also, if your fuel tank is not properly venting, you fuel flow could get restricted after 20 minutes.

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Technician: Donald, Small Engine Technician replied 1 year ago

You and I can continue from here. I wouldn't give up and throw it away.

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Donald
Donald
Donald, Small Engine Technician
Category: Small Engine
Satisfied Customers: 2,232
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Experience: I have 25+ years of experience repairing 2 & 4 cycle engines

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