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 Post subject: carb tuning
PostPosted: Sat Aug 27, 2005 12:46 am 
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1 BBL (New)

Joined: Sat Aug 27, 2005 12:31 am
Posts: 1
Car Model:
hello,
I am new to the 225 world and was looking for some knowledge about tuning the singe bbl.
The car runs great, but it bogs out if I press the gas too quickly from a stop...I have to ease slowly into the throttle to start or the engine will die. I'm guessing this is a carb issue. Any tips on how to resolve it?

appriciate it
-67ddart


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 Post subject:
PostPosted: Sat Aug 27, 2005 6:31 am 
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Joined: Fri Nov 01, 2002 8:20 pm
Posts: 1603
Location: Oxford, Georgia
Car Model:
Sounds like an accelerator pump problem. Take the air cleaner off, look down into the carb (not with the engine running!) and work the throttle with your fingers. Do you see a stream of gas shoot into the venturi? If not, you probably need to replace the accelerator pump diaphragm.

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'66 Dart - turbocharged 225
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 Post subject:
PostPosted: Sat Aug 27, 2005 8:53 am 
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TBI Slant 6
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Joined: Sat Aug 20, 2005 7:43 pm
Posts: 153
Location: Groton, CT
Car Model:
i may be new to the 225 world too...but i wonder...does it only happen when the car isn't warmed up?
i've only ever owned carbureted vehicles and that always seems to happen to me while it's still warming up.
it may be simple, but it could be possible...

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GO VOLS!
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 Post subject:
PostPosted: Sat Aug 27, 2005 9:31 pm 
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4 BBL ''Hyper-Pak''
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Joined: Tue Jul 05, 2005 9:14 am
Posts: 26
Location: Oranageville Ontario Canada
Car Model:
i also wish ti tune my 1bbl carb. somtimes when going from revers to drive my car just dies out. ist that a carb problem or somthing more serious?

_________________
Stock 68 dart 225.


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PostPosted: Mon Aug 29, 2005 7:21 am 
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Joined: Tue Jul 27, 2004 9:27 am
Posts: 824
Location: Pittsburgh, PA
Car Model:
I think this post will cover the possible causes of both problems. Of course more details about the condition/upkeep of these cars would be helpful to the diagnosis.
Quote:
or somthing more serious?
Stalling between reverse and drive isn't always indication of serious problems. It's usually a sign of needing a tune up. A proper tune up is more than just adjusting the carb. Here is a list.

Spark plugs,
Wires,
Distributor cap and rotor,
Points and condensor (if present)
Valve adjustment, you'll need a replacement valve cover gasket
Fuel filter,
Oil and filter change,
PCV valve,
Replace any cracked or hardened vacuum lines and hoses,
Air filter,
Check timing setting,
Check manifold gaskets for vacuum leaks (common on old slant sixes)
Adjust carb LAST!

This should be about $100 worth of parts, a little more if you buy premium stuff, and you should. Parts that are only a couple of years old arn't 'new' any more and should be replaced along with the rest of the list.

If this doesn't fix it, echo back the list of things you've recently replaced and you will get better attention because this list easily cures 80% of the questions and problems asked in this engine forum.

"What do you mean I have to replace the fuel and oil filters again, it's only been 2 years!" :wink:

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 Post subject:
PostPosted: Mon Aug 29, 2005 8:19 am 
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4 BBL ''Hyper-Pak''
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Joined: Tue Jul 05, 2005 9:14 am
Posts: 26
Location: Oranageville Ontario Canada
Car Model:
thanks. I only just got this car so i plan on doing a major tune-up this winter since I wont be driving it.

_________________
Stock 68 dart 225.


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 Post subject: tuning
PostPosted: Tue Aug 30, 2005 5:00 am 
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3 Deuce Weber
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Joined: Tue Nov 05, 2002 12:35 am
Posts: 82
Location: Chicago along the Lake front
Car Model:
I think if it is an emmision(post 1973) era car, there is an osac valve on the firewall with a hose coming from the dist and a hose going to the carb, disconnect the hose from the dist at the osac valve plug it in the carb after pulling the carb end of the hose from osac valve...no bogging on stop light take offs.

_________________
73 Dart 4dr
70 duster
75 VW bug
ex-88 honda rice rocket
ex-70 cuda 383


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