I have eb8520 blower and would like to know how to time
I know its out of time it pops when i try to start
Popping like this DES NOT always mean that it is out of time.
Is this a 4-cycle engine on the blower?
If it is, then the most likley problem is a problem that they have had since this model has come out. The overhead valve system has melted and is not allowing the valves to open and close.
It this is the case, then it is not usually repairable and you should just get a new trimmer.
IF it is out of time, the problem is almost always that the flywheel key,(That is actually mad INTO the flywheel is broken and you will need to replace the flywheel.
OK, I have looked up the blower,
Here is some information on the blower.http://www.wisesales.com/shindaiwa-eb8520-blower.html#.UBxjdaBXm9U
As far as I can see, this is a 2-cycle engine so the valve issue would not have anything to do with it since it doesn't have valves.
The flywheel key issue is still valid and also the electronic ignition could have gone bad and cause the ignition to be out of time. This is because there is usually "Spark Advance circuit inside the Ignition coil and if it is not working correctly, it will be out of time. There is NO other timing to be done.
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the engine has valves and I would like to know how to time the valves with the piston, the timing belt has jumped and I need to find top dead center and and how to place the belt on the correct marks
If your unit has valves, then it is a 4-cycle engine. I am NOT a Shindawa dealer and have NOT sen one of their 4-cycle engines, so I will have to opt out and hopefully a different expert has worked on this particular unit. Just about anything else you would like to onow, I would be able to help you with.
I Own a Lawn Mower Sales and service business (37years). Have 2-cycle and 4-cycle certification.
Hello,have you checked the valve lash first ? Did you have it apart and the reason you want to time it?
valve lash is good I know the belt has jumped teeth and would like to know how to time valves to motor
OK.I'm sorry but I have to opt out.The service manual I have doesn't cover your model and the engines are different and I'm not sure.
Hi, my name isXXXXX am sorry this has been so troublesome for you. I have rebuilt a couple of these and they can be real bears. There should be a mark on the plastic cover and a mark on the crank gear. Top dead center is very simple to obtain, even without the marks. Take out the spark plug and gently hold a small screw driver in the hole. As you rotate the crank you will feel the piston push up on the screw driver. When it quits pushing and begins to fall, back up to where it tops out. Top Dead Center. The valving is not much more difficult. I believe the cam lobe should be UP at T.D.C., but there is still a mark on the cam gear. I don't remember if it points to another point or to the mounting screw for the plastic cover, but I remember it made sense when it lined up. There is no idler for the belt, so once you get everything timed, slide the cam gear off a little so it will lean down. Then slide the belt on and slide the cam gear back into place. Then rotate the engine a couple of times and then with the screw driver get the crank back to T.D.C. and check the cam. Let me know if I can help in any way or if you have any other questions. I'm glad to help.
Sole proprietor of LaGrange Small Engine