Sounds to me you have timing off 180 degrees.
Does it have compression?
Does it briefly run when an ether spray is used.
If there is a distributor do the plug wires go to the right plugs?
An engine needs a decent cranking speed, compression, timing, the correct amount of fuel and a good spark in order to run. You claim fuel, spark and timing...
When building an engine it is important to empty the hydraulic tappets of oil so they don't hold the valves open.
SOURCE: 1992 Geo Storm having problems.
you may have turned too many rmps and warped a piston which would cause the piston to actualy hit your valve, or while turning too many rpms you may have caused the valve to "float" which would mess it up
SOURCE: 1996 Geo Metro 4 cylinder
http://www.fixya.com/cars/t591786-1997_geo_metro_starting_problem
look at this post, this may help, I am having the same problem and am going to try to find one of these parts.
SOURCE: I cannot figure out what the timing marks are.
there is a small mark on the cam pully that must point strait down to the mark on the crank shaft timing pully. the mark on the crank pully is a bit hard to see but it is a low spot on the inside area. also lines up with the keyway grove in the pully.
SOURCE: SPEEDOMETER CABLE NEEDS TO BE REPLACED
There is no cable on the 93 Prizms. The problem is one of two things, either the "vehicle speed sensor" or the instrument cluster itself. I also have a 93, and the speedometer started acting up a while ago. Sometimes it would register 0 then it would spike up to 70 and stay there at highway speeds then back to 0 upon slowing. I replaced both items from the junk yard. The speed sensor at an auto parts store will run about $160, and a new cluster will cost A LOT more at the dealer! I first replaced the speed sensor with no luck ($5.00 at the junkyard) the same thing happened 0 or 70. I replaced the cluster today ($13.99 at the junkyard). That was it! Problem solved. The cluster is EASY to replace, remove the 2 screws from the trim piece and remove trim. Next, remove the 4 screws that hold the cluster in place; 2 at the very top (don't remove the ones just above the cover glass) and two at the bottom. Pull one side of the cluster out; there are 3 plugs; squeeze the center of the plugs to release the clip and wiggle them free. Connect the replacement cluster, but before screwing it in, do a check to make sure all the panel lights work. I had a few that were burned out, so I used the old cluster lights to replace them. I would try replacing the cluster first. Good luck!
SOURCE: how to set the timeing on 91 geo storm
The timing marks are located near the top of the crankshaft pulley on the plastic timing belt cover. There is a notch in the pulley to mark TDC (Top Dead Center)
Align the notch with the 0 mark on the plastic cover to set your base timing.
Ground the proper circuit on the ALDL connecter located under the dashboard somewhere under the steering wheel. Check the manual for the proper circuit to ground.
With the engine warm and the circuit grounded. Set the proper timing. Un-ground the circuit and you are done.
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