I have almost finished installing a new engine in my Chevy Scottsdale Truck, only it won't turn over. We have put the engine to Top Dead Center and verified it by checking the valves. The engine really wants to start. I know we have spark, fuel, compression. The only thing we don't know is why there is fuel vapor being expelled from the carb. It is not constant, but rather as we crank the engine it will turn over three or four times and then "Pfffffff" it shoots this vapor in two streams out of the carb. If anyone feels that they can help, Please do and if you feel compelled you can call me at 208-577-7979. I am not oppossed to sending a gratitude via paypal to someone who calls with a solution.
2007-02-20 13:03:25 · 4 answers · asked by Lokahi 2 in Cars & Transportation ➔ Maintenance & Repairs
Yes, but did you install the distributor or did it come already installed. Turn it back to TDC for #1, remove the cap and make sure that the rotor is pointing to the number #1 wire on the cap. then recheck the wire placement on the cap and spark plug (check the rotation of the distributor so that it matches the placement of the wires). If this is correct, remove the spark plugs and turn over the engine with the coil wire pulled to clear the cylinders (be careful of the gas shooting out). recheck the idle enrichment screws to they are 1 1/2 turns out and no further. With the plugs out---crank the engine while watching the carb; to make sure that the carb is not dumping fuel (because of the fact that no manifold vacuum is being created because of the plugs being out, no visible fuel should becoming out of the carb--if there is you have a problem there). I'm hoping that this new engine was factory run and preluded. If not--one or more of the lifter may have not pumped up with oil and not allowing the exhaust valves to open--I hope this helps
2007-02-20 13:43:42 · answer #1 · answered by redrepair 5 · 0⤊ 0⤋
First, are your valves set properly? Are you 180 deg. off in your timing? Try rotating your distributor 180 deg. If that doesn't work, make sure your gas is good. My brother called me with a similar problem, he burnt up a starter. I went out to his house and after a minute figured his gas was bad. Try pouring a little fuel you know is good. This should get you started, hopefully.
2007-02-20 13:13:43 · answer #2 · answered by mad_mav70 6 · 0⤊ 0⤋
So you have verified that the valve timing is correct. Have you verified that the ignition timing is right. It sounds like the spark isn't hitting right.
What type of ignition?? HEI??
2007-02-20 13:14:35 · answer #3 · answered by sk33t3r 3 · 0⤊ 0⤋
it sounds like your distributor is not set right.
2007-02-20 13:27:18 · answer #4 · answered by shetaz5360 3 · 0⤊ 0⤋