Re: [Chrysler300] 300 G Fast Idle
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Re: [Chrysler300] 300 G Fast Idle



I use a Unisyn Model A to balance the two AFBs on my 300H. I bought a plastic oil filler funnel  which had the same diameter as the top of the carbs. I cut the other end off to the center of the diameter of the rubber on the Unisyn. It works well for getting the carbs balanced at idle speed. I do not know if it matters a whole lot on this carb setup because of the common manifold , but at least it satisfies the requirement that the air flow be equal.
Mike Moore
300H (satisfied Unisyn user 2 AFB)


> On Aug 17, 2016, at 8:23 AM, Ray Jones 1970hurst@xxxxxxxxx [Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:
> 
> 
> Note that it will work on any number of carbs. I used it mainly on Tri-power (triple) carbs, mostly on Marine motors.
> Ray
> 
> On Wed, Aug 17, 2016 at 10:10 AM, John Lazenby <french_fryguy@xxxxxxxxx> wrote:
> You can take a large plastic funnel and trim the small end to mate to the Uni-Syn and the large end to mate to your carb top.
> 
> John Lazenby
> 
> 
> From: "Anna F Noia sa-noia@xxxxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx>
> To: Ray Jones <1970hurst@xxxxxxxxx>; Val Jeffers <edward1108@xxxxxxxxx> 
> Cc: John Grady <jkg@xxxxxxxxxxxxxxxxx>; "mgoodknight@xxxxxxxx" <mgoodknight@xxxxxxxx>; "chrysler300@xxxxxxxxxxxxxxx" <chrysler300@xxxxxxxxxxxxxxx>
> Sent: Wednesday, August 17, 2016 7:36 AM
> 
> Subject: Re: [Chrysler300] 300 G Fast Idle
> 
>  
> Ray, Val & All
> I also have limited experience with the "Uni-Syn" but not with 4BBL carb's. I used it with side draft carbs. (SU's, Strombergs, etc...) Is there a special one set up for a 4BBL carbs? I would like one for myself. 
> Best Regards,
> Stephen A. Noia
> 1-408-210-4736 cell
> 
> 
> On Wednesday, August 17, 2016 7:04 AM, "Ray Jones 1970hurst@xxxxxxxxx [Chrysler300]" <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:
> 
> 
>  
> An indispensable tool is "Uni-syn".
> This measures the carburetor's  airflow. 
> Going from side, you can balance one to the other.
> Easy to use and quickly allows you to balance, probably a major factor in performance.
> I've had one for nearly 60 years. Crap, how did that happen?
> Ray
> 
> John Lazenby sells them to Club members @ a discount. 
> 
> On Wed, Aug 17, 2016 at 8:15 AM, Val Jeffers edward1108@xxxxxxxxx [Chrysler300] <Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:
>  
> Just a thought, would it not be very beneficial to have a video on the club page showing the proper procedure for adjusting the ram carburetors and fast idle ?
> 
>                                                                 Thanks,
> 
>                                                                  Val J
> 
> 
> On Tuesday, August 16, 2016 8:19 PM, "'John Grady' jkg@xxxxxxxxxxxxxxxxx [Chrysler300]" <mailto:Chrysler300-noreply@xxxxxxxxxxxxxxx> wrote:
> 
> 
>  
> Agree; others will get into this. Ram warm up is dicey as one side always pulls off before the other, but sounds like your high idle stop screws are set to high.( simple first thing)  Be sure heat riser valves are working. Remember there is no conventional throttle stop / regular idle, only the air valves ----and throttles must close 100% when off high idle. There are instructions in 60 300F manual supplement —have to have that to do this. Many factors play into it. I’ll let someone else fill a phone book about ram idle. I believe there is  no high idle rpm spec . Somewhat dependent on local climate whether you even need a lot of that working , but heat riser valves must be working no matter what else.
>  
> Follow instructions exactly , step by step. 
>  
> From: Chrysler300@xxxxxxxxxxxxxxx [mailto:mailto:Chrysler300@xxxxxxxxxxxxxxx] On Behalf Of 'mgoodknight@xxxxxxxx' mgoodknight@xxxxxxxx [Chrysler300]
> Sent: Tuesday, August 16, 2016 7:29 PM
> To: edward1108@xxxxxxxxx
> Cc: chrysler300@xxxxxxxxxxxxxxx
> Subject: Re: [Chrysler300] 300 G Fast Idle
>  
>  
> Sounds like you have a problem with the choke pull-off system.  I don't have specs for your fast idle speed, but without regard to the actual setting it should come back to a slightly fast idle immediately after the engine starts (of course also after you press the gas pedal a little to unload the fast idle cam).  If your pull-off is a vacuum diaphragm you should suspect that it has ruptured.  If it is a piston in the choke's hot air/bi-metal spring chamber you should suspect the vacuum passage to be clogged.
> You should not have to wait for operating temperature before you can have a reasonable idle speed.  When working properly there is a step-wise decline in idle speed as the engine warms up, but you should never have to deal with such a high idle speed for an extended time------good way to break a band in the transmission.
>  
> Marshall Goodknight     
> 
> 
> ---------- Original Message ----------
> From: "Val Jeffers edward1108@xxxxxxxxx [Chrysler300]" <mailto:Chrysler300-noreply@xxxxxxxxxxxxxxx>
> To: "chrysler300@xxxxxxxxxxxxxxx" <chrysler300@xxxxxxxxxxxxxxx>
> Subject: [Chrysler300] 300 G Fast Idle
> Date: Tue, 16 Aug 2016 23:00:42 +0000 (UTC)
>  
>  What is the correct fast idle RPM ? Mine starts out at around 2,000 and doesn't come off until the temperature gauge reaches normal. Not sure how to adjust. Appreciate any help.
>  
>  
>                                                                                            Thanks,
>  
>                                                                                            Val J
>  
>  
>  
> 
> 
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> 
> 
> 
> -- 
> Ray Jones. Y'all come on down an see us. Ya hear?
> 
> 
> 
> 
> 
> 
> 
> -- 
> Ray Jones. Y'all come on down an see us. Ya hear?
> 
> 



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Posted by: Michael Moore <mmoore8425@xxxxxxx>
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