Question about Gcv160 Gas Engine

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I have put my carb back together having looked at the float. The carb was cleaned last year. I cannot pull the line as the line is restricted and not deploying properly.

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Hi Julie,
First, that penetrating oil I told you about is called "BLASTER", but since they don't sell it in France, There's no sense sending a picture of the can, huh? I've been thinking about your problem. It may be a long shot, but you said you were trying to mow grass that was really tall. There is a chance, that from pulling on the rope with cut grass binding the blade, that you have damaged the the pull rope assembly on the top of the motor.
If you remove the top cover of the motor where the pull rope is, that whole assembly will come off with it. Don't worry! No springs will pop out at you and it all stays together. With the top removed, pull the rope making sure the pulley under the cover rotates freely.
That's the ONLY external thing that could stop the engine from turning over. Outside of something you may have run over, that is stuck between the blade and bottom of the mower. Which just happened to me today.
I went to mow my niece's lawn and the grass was really tall. I ran over one of her dogs rubber toys. It stopped the mower dead in its tracks and I couldn't even pull the rope. When I tipped the mower on its side, I found the toy wedged in tight. I had to cut it out.
Anyway, Julie, if it isn't one of those two things...I hate to admit it, but I'm stumped! Oh, just for S & G, while you have the top cover off, tip the mower and see if you can turn the blade. WARNING!!! Never try to turn the blade by hand, without removing the spark plug wire first!!!!!!!!!!! It would be just your luck, the thing would fire up and cut off your hand.
I wish I were there to help you. I love a good challenge. Please keep me posted and by all means... If you ever figure it out, please let me know what it was, okay? Take care, good luck and you have a great Easter as well.

Posted on Apr 04, 2015

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  • julie Perry
    julie Perry Apr 04, 2015

    Hi Bill, Thank you so much for coming back to me. Great minds think alike because last night I was lying in bed as you do thinking about this blasted lawn mower and I thought could it be the blade. The reason as you have already mentiond is that I dragged it because the grass was too long and wet, even though it has wheels on it. My mower you see is a huge flymo with the GCV160e engine on top. It is a very light body on it with the heavy engine. I am wondering whether as I dragged it a small stone as wedged between the huge disk that is close to the frame. I went down to the local lawn mower shop and the Frenchman sort of understood what I was saying and he cannot believe the engine as seized due to fuel in the engine especially as it had just been filled with new oil. If he said there was no oil in the engine at all he could understand it. So, I will endevour to look at the blade today and yes, the spark plug is definitely out of the machine. I was talking to one of your fellow American's last night on Houzz and he is surprised that the engine has seized. I will keep you posted, you don't fancy mowing my lawn as well do you. I have got half an acre and normally only takes me two hours.........several days later I and I have only manged to cut the back lawn. You take it easy and thanks once again! Enjoy your weekend!!

  • julie Perry
    julie Perry Apr 04, 2015

    Oh yes, I saw a video on "BLASTER"....Lethal stuff. No France doesn't sell that sort of thing, probably due to EU ruling, you can't even have certain oven cleaners because they contain chemicals that are banned..Brussells has a lot to answer for us Europeans!


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Follow the line to the engine brake to see if the brake is being released when you squeeze the handle.

Posted on Apr 01, 2015

Testimonial: "I have done this and the lever is moving. It worked okay and I cut my back lawn but since I have had the carb off because of petrol in the filter, I cannot deploy the the pull.Its stiff."


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Hi, my name is Shaun. I will do my best to help you with your problem. By your description, it wounds like you are not getting any fuel to your carbuerator. This may be caused by sticking floats or a clogged needle valve. Try this. First, make sure your gas line is clamped shut or your tank is empty. Then remove the float bowl from the bottom of your carb. This will reveal the floats. Make sure they move absolutely freely. If you look closely, you will see that the floats pivot on a steel pin. Remove this pin to free the floats from the carb. Be careful to pay very close attention to how these parts go back together, especially where the needle valve is located. When you pull out this pin, the needle valve will come free along with the floats. Give the pin, float hinges, and needle valve a good scrubbing with some carb cleaner and a toothbrush. then use the straw attachment to shoot some cleaner up into the hole where the tip of the needle valve was located. Be careful, as there is a rubber gasket up inside there. Then disconnect your fuel line from the carb and shoot some cleaner in there. Reassemble averything except for the float bowl and put a little bit of gas in the tank. Observe the fuel flow from the needle valve. You should have a good, steady stream. Lift up on the floats and make sure the flow stops. If all of this checks out, reinstall the float bowl and give it a few minutes to fill up. Then prime and start your engine as normal. This should clear up your problem and keep you mowing for another season. Hope this helps. Good luck and have a great day!

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Please rate my answer. Thanks!


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