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Hello again all. I have a Murray 1996 and 42828x8B, with 16hp Tecumseh engine. Mower has been working great all season. This weekend it started up and then after about short time stopped immediately. No slow sputter type but hard and fast. After that I got no crank at all. Went through the normal switch check and battery and found solenoid fuse and solenoid toast. Jumped and found the starter now would crank but would not spin the flywheel.

Myself questions are should the flywheel turn? Mine is not moving at all. Also the ignition coil looks like it is tight against the flywheel is that normal? Any ideas where to go from here? What are my next steps? Is engine seized? Or am I missing something with troubleshooting why the flywheel won't turn or move at all.

Thanks.

Picture of ignition coil tight against flywheel would help.

And the engine model number would also help...!

Engine is Tecumseh ohv16 204211c

I have pictures but won't be able to put up here till tomorrow. I took off the ignition coil and pulled spark plug to see if those helped but still flywheel does not budge.

If you hit something mowing you might have sheared the fly wheel key. You will have to pull the fly wheel to check/replace it. They can be a real booger bear to remove.

Tom

Assuming there is nothing under the engine jambing the belts.
either the engine is seized or there is something under the flywheel jambed between the stator & the magnets.
Usual suspect for that is a broken magnet.
Pull the flywheel off and see if the engine rotates.
If not then something inside is busted and it is pull apart time

That's what I am trying to get to. If there is any other reason the flywheel will not turn. ( magnets, brake etc.) Is there a way to disengage the magnets or brake on the flywheel?

If this engine is seized up internally I wont be putting a lot more money into it. But if there is something I can do relatively inexpensive then I will try to make it go again.

thanks for any and all advice.

I have pictures but won't be able to put up here till tomorrow. I took off the ignition coil and pulled spark plug to see if those helped but still flywheel does not budge.[/QUOTE]

here is the Tecumseh Enduro engine label from the side of the engine

here is another picture

Has posted above, take off the flywheel and see if there is any damage to the alternator, you do seem to have a problem with the electrical side...!

Jmoxie said:

That's what I am trying to get to. If there is any other reason the flywheel will not turn. ( magnets, brake etc.) Is there a way to disengage the magnets or brake on the flywheel?

If this engine is seized up internally I wont be putting a lot more money into it. But if there is something I can do relatively inexpensive then I will try to make it go again.

thanks for any and all advice.

Click to expand...

If it won't turn by hand and there is nothing jambed under the engine then the previous post stands.
If you need to do something else we would have told you .
So undo the nut and pull it off.
Wishing will not get it done .
No cables to pull, levers to adjust nothing but yanking it off.

In process of pulling engine to see what happened.

Everything is off the engine now. I have a question on how to remove the pulleys. The pulleys are tacked to a metal pipe and that looks to be installed over the lower section of the shaft. There is no screws or bolt it kind of has a impression on the pipe like shaft but no where to loosen. Any ideas? I will take a picture tonight but to take the engine off the frame I need to remove the larger pulley. I am close to cutting it off but just in case I can fix it I dont want to destroy it.

here is just the pulley pic.

There is a bolt up inside the bottom part of the pulley tube that has to be removed. If that is out, then the pulley is stuck and will take some work to get off, and may even require destroying the pulley.

Thanks , I found it, it was up indie the tube.

Preliminary findings are the connecting rod from the piston where it connects to the camshaft is damaged. Looks like lubrication failed in that area and roughed up the aluminum and stopped sliding. Everything else seems smooth and free. There is a lot of carbon build up in the valve area and the top of the piston. I will clean it up and see what else I can find.

Thanks for all the help and suggestion guys.

I may have a line on another engine 19.5 horse Kohler. Hope it fits.