Re: Sluggish 63
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Re: Sluggish 63



Doug,

Could be the accelerator pump, but here's an article that discusses
how the idle adjustment being off can cause 'puddling' which is a
temporary rich condition caused by idling.  It bogs briefly until the
extra gas gets sucked out.

http://www.thecarburetorshop.com/Troubleshooting.htm

- Jim
Jim Altemose, Long Island, NY
'63 Polara 500 (Max Wedge)
'63 Polara 500 (383)
'65 Belvedere I (Street Wedge)
'71 Bronco

On Wed, Aug 1, 2012 at 10:07 PM, Doug J <63sprtfury@xxxxxxxxx> wrote:
> Hey all,
> This summer my car has been kind of hesitating from take-off, not real bad,
> just kinda flat for the first bit, then ran fine.  Last Friday night at our
> local cruise, it started hesitating quite a bit more, and not wanting to
> idle at stops while in gear.  Took it out on the highway to "clean it out" a
> bit and it acted like it was at half throttle at best.  So, tonight I
> changed the fuel filter, it was bad, and took it out for a ride. Ran pretty
> good at first, but after a while, the rough idle was back and so was the
> hesitation.  Increased the idle speed a bit, and the accelerator pump stroke
> as well.  Same.  Also, if you rev it up a bit in neutral, it  takes a minute
> or so for the RPMs to go down to idle speed.  Linkage is not sticking, as
> even holding the throttle lever closed doesn't make it slow down any faster,
> you just have to wait for it.  At say 1500 rpm in low, you can hammer it and
> it responds nicely. It will also downshift and accelerate fine when floor
> boarded.  Seems to just be low rpm related.
> Only change I have made to it was putting on a Mopar electronic ignition
> system.  Starts wonderfully with it btw.  It is not a kit, but all parts I
> found in my "stash".  Distributor and control box are very low mileage
> though, I'd say 1000 miles or so, although they are probably 20 years old.
> Also, I haven't done any "tuning" to the igition yet, due to the rough
> running which I have been thinking was all carb probs, so it's only at 5
> degree advanced at this point.
> Here's the particulars
> 68 383 HP, stock except for "Purple Shaft" cam
> Edelbrock 800 AVS  (5 or 6 years old)
> Dual exhaust off manifolds
> Mopar electronic ignition with orange box
> Automatic with stock convertor
> Fresh premium gas
>
> Any thoughts?  Always put stabil in the gas for storage, but carb might be
> getting gunky inside?  Could ignition timing be part of it?
>
>
> --
> Doug,
> '63 Sport Fury 'vert
>
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Please address private email -- email of interest to only one person -- directly to that person. That is, email your parts/car transactions and negotiations, as well as other personal messages, only to the intended recipient. Do not just press "reply" and send your email to everyone using the general '62-'65 Clubhouse public email address. This practice will protect your privacy, reduce the total volume of mail and fine-tune the content signal to Mopar topic. Thanks!

1962 to 1965 Mopar Clubhouse Discussion Guidelines:
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