1st Generation Specific (1979-1985) 1979-1985 Discussion including performance modifications and technical support sections

Do i need...

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Old Feb 6, 2008 | 07:22 PM
  #1  
Experiment.Seven's Avatar
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Rota-lution
 
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From: Reno, NV
Do i need...

To retain the dashpot? What all do you NEED to run the carb?

I took off the dashpot and some emissions stuff but i dunno...i've seen that people like to retain their dashpot??


Thanks.
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Old Feb 6, 2008 | 07:27 PM
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From: Trying to convince some clown not to put a Holley 600 on his 12a.
Do you even know what the dashpot does?
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Old Feb 6, 2008 | 08:08 PM
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djessence
 
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not gonna lie, i dont even know what it is(so if someone feels they need to answer feelfree but i dont wanna hijak).

just went and looked. tis very intresting concept.

Judging by what i just read and sterlings response it sounds like an integral part of the carberetor...

maybe you should put it back in and see if your carb will work.
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Old Feb 6, 2008 | 08:20 PM
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Experiment.Seven's Avatar
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Rota-lution
 
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From: Reno, NV
As far as i have studied about it...just looking at it. It's just a damper for when you let off the throttle so it doesn't return to strongly.

That's why i was wondering if i even needed it.
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Old Feb 6, 2008 | 08:57 PM
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Sterling's Avatar
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From: Trying to convince some clown not to put a Holley 600 on his 12a.
Originally Posted by Experiment.Seven
As far as i have studied about it...just looking at it. It's just a damper for when you let off the throttle so it doesn't return to strongly.

That's why i was wondering if i even needed it.
Correct. You get a free snow cone. (Cost of shipping the frozen snow cone to Reno, NV will be about $125.00, COD, of course.)

The deceleration dashpot is exactly for what you described. If the throttle is allowed to snap shut during high RPM, the vacuum from that is excessive, and it sucks quite a bit of fuel out of the idle circuit, which is normally just gravity fed.
When that fuel comes into contact with your typically super hot rotary exhaust, "Kapow!", and it'll only take a few well placed backfires to destroy your expensive catalytic converters.
Since you've probably ripped all that exhaust **** off, it becomes a matter of personal taste as to whether or not to have it on.
Personally I like to be able to downshift quickly and know my RPMs are right where they always are right after I've taken my foot off her, and I like to have the accelerator pumpshot full and ready with a stock carb.
You have to actually try to get a backfire with a stock carb by running it at high RPM (lean), and then flip off the pedal. Ride comfort is a consideration because you do get a jerkiness from flopping off the pedal.
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Old Feb 6, 2008 | 09:41 PM
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if that is the same at the shutter-valve-which is what I'm thinking of- Then yea, you can remove it. I did on my NIKKI b/c it was not connected to anything and it would raddel...and that pissed me off, so I ripped it out.
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Old Feb 6, 2008 | 09:53 PM
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Rota-lution
 
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From: Reno, NV
Shutter valve just closes off a intake runner in deceleration. It's an emission thing lol. You could just pin it open instead of taking it out. =]
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Old Feb 7, 2008 | 02:18 PM
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O, well I got the Holley now, so...
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Old Feb 7, 2008 | 02:44 PM
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Rota-lution
 
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From: Reno, NV
lol nice. =]
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