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Old 01-02-2011, 11:59 PM   #1
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Engine studders

my 65 mustang has a 351 w in it and it iddles fine but whenever it gets around 3,000 rpm, it has little studders. I just put new plugs, wires, and a distrubutor in and it helped a little but the problem still exists. The timing has been corectly adjusted. I think it may be either the carb or fuel pump. any ideas?
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Old 01-03-2011, 12:07 AM   #2
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Re: Engine studders

I doubt its the fuel pump, it would get even worse above 3,000 rpm. It could be some water stuck in the jets of the carb or the carb being dirty. It could also be a weak coil or ignition box.
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Old 01-03-2011, 12:10 AM   #3
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Re: Engine studders

the coil is part of the new distributor so i feel comfortable ruling that out. it has been snowing here so maybe there is so water in the jets; ill have to look into that
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Old 01-03-2011, 12:26 AM   #4
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Re: Engine studders

A trick I know is to pour some rubbing alcohol into the carbs over flow tube so the alcohol will mix with the water and make it combustible and it won't hurt the engine or anything else.

Or the redneck mechanic way is to make it back fire/ spit through the carb by switching two plug wires and revving it real quick but I don't recomend this because of the risk of starting a fire unless your real careful.
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Old 01-03-2011, 12:27 AM   #5
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Re: Engine studders

cool ill give the alcohol a try
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Old 01-03-2011, 06:15 PM   #6
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Quote:
Originally Posted by 1965_351w
cool ill give the alcohol a try
It could be running too rich or the needle might be obstructed. Don't know what carb your running but I would not want to backfire as this will pop your power valve if you have one.
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Old 01-10-2011, 01:14 AM   #7
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You may want to redo the timing. I just had the same problem. I have a functional gt350 hood on my 65 and it got water all over everything. We started replacing things one by one dist cap, spark plugs, points, retiming, then an entire distributor and vaccum. It ended up just being that when we timed it my motor acted like the timing was to low so we advanced it and it runs exactly how it used to. All motors are different so timing varies. If not that you may want to check the fuel filter connected to the fuel pump, sometimes water gets trapped in it.
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Old 01-10-2011, 10:40 AM   #8
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Re: Engine studders

i had studder problems, was camshaft sensor. may not be the same studder though
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