[Roadsters] Was Engine test results, suspect distributor

[Bubba]

Usually when a ballast resistor fails the engine starts, then dies as soon 
as you release the key to the run position.

The ballast resistor reduces voltage to the coil to help save the points. 
There is a crank bypass circuit that provides cranking (battery) voltage 
when cranking to give lots of juice to start. Once you release the key, the 
ballast resistor is fed from the "B" terminal on the starter. as it heats up 
the resistance increases, dropping the voltage, saving the points.

The condenser basically absorbs any voltage spikes on the primary side of 
the coil when the points open to cause a spark.  This all but eliminates an 
arc as the points are beginning to open.  Otherwise full voltage could jump 
the air gap a bit and reduce the effectiveness of the spark, and delay spark 
timing

Bob Winslade
1966-1600 "Missy" getting a KA24E
1967-1600 "Bender" on hold
1972-510 "Daisy" Regular driver
1972-510 "Spare Change" not sure yet
1993-240SX "Essex"  new toy I bought for Mamma (supposed to be a KA24DE 
donor but it's too nice and needs little)


----- Original Message ----- 
From: "Pete Peters" <ppeters914 at comcast.net>
To: "Datsun Roadster List" <datsun-roadsters at autox.team.net>
Sent: Monday, October 05, 2009 10:17 AM
Subject: Re: [Roadsters] Was Engine test results, suspect distributor


> No. The condenser and ballast resistor are totally different electrical 
> components (resistor vs capacitor) with totally different functions in 
> ignition systems.
>
> Pete
>
> ----- Original Message ----- 
> From: gregs672liter at netzero.net
> To: ljordan704 at netscape.net
> Cc: datsun-roadsters at autox.team.net
> Sent: Sunday, October 4, 2009 11:12:57 PM GMT -08:00 US/Canada Pacific
> Subject: Re: [Roadsters] Was Engine test results, suspect distributor
>
> Um, ya what ever it's called... I haven't had to mess with point since
> 1986...
> Greg
>
> ---------- Original Message ---------- 
> From: ljordan704 at netscape.net
> To: gregs672liter at netzero.net, hallosb at juno.com
> Cc: datsun-roadsters at autox.team.net
> Subject: Re: [Roadsters] Was Engine test results, suspect distributor
> Date: Sun, 04 Oct 2009 21:15:12 -0400
>
>
> That's a condenser isn't it?
>
> Linda
>
>
> -----Original Message----- 
> From: gregs672liter at netzero.net <gregs672liter at netzero.net>
> To: hallosb at juno.com
> Cc: datsun-roadsters at autox.team.net
> Sent: Sun, Oct 4, 2009 4:27 pm
> Subject: Re: [Roadsters] Was Engine test results, suspect distributor
>
> Try changing out your ballast resistor on the side of the distributor, 
> even if
> new. I've seen this exact problem caused by this on a friends 1600.
> Greg Burrowssters
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