QuestionQUESTION: hello,
When I try to start my jeep all it does is rotate. I have an amc 258 I6, Hei
distributer, no computer, weber carb. The carb is good, getting fuel to intake,
getting spark, but just no firing. Any ideas? I've stumped all my mechanic
friends.
ANSWER: If you manually open the choke plate and look down in the carb and manually accelerate the fuel linkage back and forth can you physically see 2 streams of fuel being sprayed down into the engine ?.
Are you sure your ignition coil is giving you a nice bright blue spark to the spark plugs ?.
Being extremly careful manually open the choke and pour some fuel down in the carb and see if the engine will try anmd run. If it will, Your metering jets are plugged up with debris and need to be cleaned out . A very common problem.
This carb does NOT have a big plastic wire connector attached to the backside of the carb, Does it ?.
---------- FOLLOW-UP ----------
QUESTION: I am getting bright blue spark. Tried fuel and starter fluid, not at the same time,
and still no firing. No the carb doesn't have an electronic plug in the back. Fuel
is getting to the manifold from the jets.
ANSWER: Being extremly careful manually open the choke and pour some fuel down in the carb and see if the engine will try anmd run. If it will, Your metering jets are plugged up with debris and need to be cleaned out . A very common problem.
If you take the top off the carb, You will in most all cases find debris laying in the bowl.
---------- FOLLOW-UP ----------
QUESTION: again, carb reduild has been done. I have no gunk in my carb. The carb is in
perfect working order. I put my carb on a buddies jeep and it worked perfect.
There's something thaat i'm missing. I just can't figure it out.
AnswerPerform a compression test on all the cylinders. If you put your hnsnd over the carb and crank the engine does it try and suck your hand down the carb ?.
Are you POSITIVE on the spark from the coil. Check the spark plugs and see if they are fouled.
