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Sensitive Throttle 444-544

posted by  Ethan on  Sat Oct 11 20:56 CST 2014
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last visit: Sat Oct 18 09:54 CST 2014
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I'll try to keep this short. I've got a 64 544 with an j-type overdrive. When I initially had the tunnel modified for the OD unit, everything seemed fine except that the OD fouled the tunnel. A few years later I took it to another shop and they modified the tunnel such that the OD unit clears everything. At some point after getting it back from the second shop (it's been many years so I don't remember any more if the problem was immediate, but I think it was), the throttle got really sensitive at least in 1st and 2nd. As long as the road is smooth, no problem, but the slightest bump resulting in an unintended input to the throttle will start it bucking. It doesn't seem to be as pronounce in 3rd, and everything's fine whe cruising at 30+ in 3rd or 4th. It doesn't seem like it would be a problem with the clutch or transmission. It acts more like a throttle issue. The fuel lines are only a few years old, the carbs are newer (reconditioned by Z-therapy maybe 10 years ago, and cleaned today), new plug wires, Fireball electronic ignition. Any ideas?
--
'64 PVMoneypit '95 850






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