[Roadsters] First try at startup fails .

[Gary and Cindy Ault]

Dan,

First check to see whether there is power at the ignition switch terminal 
which feeds the coil when the switch is in the "on" position.  If there is 
no power there, I guess I'd conclude the switch is the culprit.

If there is power at the coil terminal on the switch, check "upstream" of 
the ballast resistor, and downstream of the resistor.  Power upstream but 
none downstream means the resistor has failed.

It is not safe to do this to drive the car, because you would not be able to 
shut off the engine, but if the ballast resistor is all right, and you have 
concluded the ignition switch is the culprit, you can put a jumper from the 
battery to the upstream side of the ballast resistor.  Pull of the plug 
wires then crank the car to check for spark.

You can do a preliminary check of the coil with a continuity tester or 
ohmmeter.  I don't know what the resistance values should be, but I think 
the secondary side (center terminal to body) should be zero or close.  I 
suspect the primary windings (between "+" and "-" spade terminals) should 
also be zero or near zero.  An "open" in either the primary or secondary 
means the coil is bad.

Let's see what the rest of the list has to say, particularly about coil 
tests.

Gary

---- Original Message ----- 
From: <dansummers at comcast.net>
To: <datsun-roadsters at autox.team.net>
Sent: Sunday, May 17, 2009 8:19 PM
Subject: [Roadsters] First try at startup fails .


>I was given a 1969 2000 a couple years ago. I have followed the 
>instructions  from the 311s.org Start-up after sitting for a long time, 
>except for the brakes (that's what caused it to be parked in the first 
>place).It turns over just fine but does not start. It seems to be getting 
>gas but no spark. I checked for power to the coil and there is none when 
>the key is turned on. I am guessing I will need a new ignition switch. Is 
>there an easy test for the switch. Is there any safe way to start the car 
>bypassing the ignition switch. Is there a way to test the coil?
>
>
> Dan
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