Re: Mystifying Miss II
Re: Mystifying Miss II -- Wes Notovitz	Post Reply	Top of thread	Maverick Message Board

Posted by: Ken Merring ® 2001/10/29, 17:36:38 Author Profile

:I got to the heart of the miss...bad plug. I bought Autolite plugs and replaced the bad one with the same (number 46). Maybe I should change brands. Anyway, there is still a hesitation that I cannot get out. Idle, is smoother, but not perfect, leaning out air mix doesn't help. I haven't seen a lot of straight sixes that idle perfect, especially with miles on them. I noticed when I checked all the plugs that there is some carbon at the rear 3 cylinders. The car starts crisply and doesn't stall. I have premium fuel in it right now. It didn't like regular at all. Right now I have to work on it static as it is up on jack stands for replacement of the rear brakes and emergency brake cables (it was an adventure finding the cables. Thank God for NAPA).There was an minute bit of play in the distributor shaft, as per the feedback I got on my last post about this. I still think I'm missing something simple. I just cannot figure out what!! . .One or two things could be going on. These cars have carbs that are engineered to run on the lean side of calibration meaning that you may not get a rich enough mix to get a good idle and throttle response. Hesitation is a lean condition,and can be aggravated by the ignition vac advance going retarded because of the lean condition at the same time.(manifold vaccum goes lower retarding the timing) .With the air cleaner off, cup your hand over the carb air horn leaving an opening about the size of a half dollar to restrict the air flow like choking. Jaz the throttle and see if there is a reduction in hesitation. If so then it is a lean carb problem that could only be overcome by custom internal work. .This same problem is often present with the 2100 and 4100 carbs used on the 302. Ken

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