RE: [DML] Ignition bits' values

["John Hervey" <john@xxxxxxxxxxxxxxxx>]

Travis, Your values are right about on the money as far as new parts in
stock that I read.
John Hervey
www.specialtauto.com


-----Original Message-----
From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of
Travis Graham
Sent: Tuesday, January 13, 2009 11:02 AM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [DML] Ignition bits' values

I've been diagnosing a problem with my driver car and in that process,  
measured the following electrical values.  These were all taken when  
everything was cold:

Ignition resistor:
Book says: 0.5 ohm on both leads
My car: 0.7 ohm on both leads

Ignition coil (battery-distributor terminals):
Book says: 1 ohm
My car: 0.6 ohm

Ignition coil (output to a side)
Book says: 7000 ohm
My car: 8930 ohm

Distributor impulse coil:
Book says: 1000 ohm
My car: 630 ohm (and the coil lead-to-housing was an open circuit as  
it should be)

Obviously my values don't match what the shop manual says, but the  
manual also says its values are high for some of those.  I'm curious  
if these values are normal.  I have another car handy and tested  
against that one and got similar readings.  Ordinarily I'd say that  
the odds of one of those parts being bad is significantly diminished  
since I tested two cars with near-identical results... but we are  
talking about 29-year-old parts and I wouldn't say that the other car  
is an ideal control sample.  Does anything there look out of whack?   
Otherwise it's on to the fuel system...

Thanks!

Travis
#6344, #3281

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