Starting tractor, What am I missing.

Been working on a John Deere 1010 as I have asked for some advice before on here. Trying to start it. Engine cranks over. I have spark. Attempted to set timing at top dead center. Have good compression in all cylinders. Gas at carb. Will not fire, even with using ether. Anything I am missing that you can think of? Any help would be appreciated.
 
(quoted from post at 11:29:56 12/03/16) Been working on a John Deere 1010 as I have asked for some advice before on here. Trying to start it. Engine cranks over. I have spark. Attempted to set timing at top dead center. Have good compression in all cylinders. Gas at carb. Will not fire, even with using ether. Anything I am missing that you can think of? Any help would be appreciated.

You're probably firing on the exhaust stroke. Check for compression on a cylinder then make sure the rotor bug is pointing to that wire. If you've had the distributor out the timing could be 180 degrees off.
 
If it won't hit on ether you don't have spark when or where you need it. Even I'll fire with a shot of either with a little spark.
 
Good advice here, remember there are two TDC's, one on compression and one on exhaust stroke, have to get the right one.
 
To start with fill in any blanks you have left out like have you had the distributor pulled out for some reason..
I will assume you have not pulled the distributor out
#1 make sure you have a good blue/white spark that jumps a 1/4 inch gap or more. at the center wire of the cap and at all 4 plug wires.
#2 check to make sure the plugs and clean and not fouled out.
 
We did not pull the distributor. We hand turned it to make sure we were at TDC. We tried spraying gas in cylinders to see if we could get it to pop. It did not. Plugs are new. We checked the carb to make sure the float is not sticking. I know we are having a problem with gas getting to the cylinders as the plugs were dry except when we put gas in the cylinders, but we do not get to pop even with ether. The spark looks real good and we have checked the rotor location/to the piston location. This thing is beating me!
 
Did it run before,without the distributor being pulled?And, as old has said, do you have good spark at the plug wire plug end? Also you can ground a plug to the block to see if it is firing between the electrodes.And you can spark time it,with the engine at TDC on no.1 cyl,with key on,pull no.1 plug wire off the plug,and turn the distributor cap til it sparks.That is when your points have opened,and rotor button should be pointing to no.1.To be sure you are on no.1 TDC compression stroke,pull no.1 plug,and hold your thumb over the hole while a helper rotates the engine, by hand preferably,and when you feel compression push your thumb out,you should be close to TDC,and your timing pointer should be on or near TDC(go ahead and line it up),and your rotor should point to no.1.If it is not in time you will need to pull the distributor;if weak or no spark you need to address that.If it tries to fire you may have flooded it pouring too much gas in the cylinders.If the carb jets are stopped up,you won't get gas to the cylinders,or if you have intake manifold leaks either.Mark
 
I missed your earlier posts, so I need to catch up. Do you have a service manual for that engine? I used to have a JD 1010 gas crawler loader (my 11,000 pound yard tractor) and I still have the service manual. Mine was a 1965, wondering if the engine info is the same for both. My manual says to set the flywheel timing mark on "26" for timing. There were three different distributors used: Delco-Remy, Wico and Prestolite; they are adjusted differently due to the automatic advance mechanism being different on the Wico than the other two. If you need specs and procedure (and assuming the engines are the same) I will try to provide it.
 

Try putting about 10 degrees timing on it. If you are intending it to be at TDC you may really be a tiny bit late, which would put you on the exhaust stroke, and you would have no compression, without being 180 degrees out.
 
(quoted from post at 06:09:28 12/05/16)
Try putting about 10 degrees timing on it. If you are intending it to be at TDC you may really be a tiny bit late, which would put you on the exhaust stroke, and you would have no compression, without being 180 degrees out.
That would be the power stroke with the piston going down.
Exhaust stroke is next with the piston going up.
 
(quoted from post at 09:42:52 12/05/16)
(quoted from post at 06:09:28 12/05/16)
Try putting about 10 degrees timing on it. If you are intending it to be at TDC you may really be a tiny bit late, which would put you on the exhaust stroke, and you would have no compression, without being 180 degrees out.
That would be the power stroke with the piston going down.
Exhaust stroke is next with the piston going up.

OK yes that is correct but you still are not making any compression when the piston is going down, which is my point.
 
OK yes that is correct but you still are not making any compression when the piston is going down, which is my point.

If he doesn't have any compression at TDC, then we have found his problem.
 
(quoted from post at 13:31:36 12/05/16)
OK yes that is correct but you still are not making any compression when the piston is going down, which is my point.

If he doesn't have any compression at TDC, then we have found his problem.

I am not referring to TDC I am referring to AFTER TDC
 

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