| new Delco ignition module [message #187372] |
Mon, 15 October 2012 18:51  |
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I'm going to purchase a new Delco ignition module but it seems that the D1906 modules are only supplied with the white dot. As I recall the yellow dot modules are preferred. Is this a problem?
Bill Brown - '77 Buckeye Cruiser
Coshocton OH
carguybill@sbcglobal.net
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| Re: new Delco ignition module [message #187387 is a reply to message #187372] |
Mon, 15 October 2012 20:48  |
George Beckman
Messages: 1085
Registered: October 2008
Location: Colfax, CA
Karma: 11
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Senior Member |
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| carguy wrote on Mon, 15 October 2012 16:51 |
I'm going to purchase a new Delco ignition module but it seems that the D1906 modules are only supplied with the white dot. As I recall the yellow dot modules are preferred. Is this a problem?
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I agree with Gene.
The yellow part of this is that the pickup and the coil have a yellow wire. The problem was that the cars were having a starting problem because of the starter wires being on the "wrong side" and causing a field that confused the pickup. So GM reversed the polarity of the coil and pickup. The pickup usually has a yellowish plug on it that goes to the module or a tag that is yellow. (I have never seen the tag but relay what I have been told)
As far as I know the module doesn't know the difference.
'74 Eleganza, SE, Howell + EBL
Best Wishes,
George
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| Re: [GMCnet] new Delco ignition module [message #187388 is a reply to message #187384] |
Mon, 15 October 2012 20:46 |
powerjon
Messages: 2446
Registered: January 2004
Karma: 5
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Senior Member |
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Gene is correct, the blk-red-yellow on the ignition coil wiring and
yellow connector body or yellow tie on the pick-up coil wiring is what
your are concerned about. The ignition module doesn't care and any
markings on it are not important. A mismatch on the coil and pickup
can create erratic timing and hard starting.
JR Wright
78 Buskirk Stretch
Michigan
On Oct 15, 2012, at 9:26 PM, gene Fisher wrote:
> here it is
> <
> http://www.gmcmhphotos.com/photos/gmc-chemicals-and-tools/p37219-delco-igniton-module.html
>>
>
> I think the color is for the pickup not the module ??
>
> gene
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>
>>
>>
>> I'm going to purchase a new Delco ignition module but it seems that
>> the
>> D1906 modules are only supplied with the white dot. As I recall
>> the yellow
>> dot modules are preferred. Is this a problem?
>> --
>> Bill Brown - '77 Buckeye Cruiser
>> Coshocton OH
>> carguybill@sbcglobal.net
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J.R. Wright
GMC GreatLaker
GMC Eastern States
GMCMI
78 30' Buskirk Stretch
75 Avion Under Reconstruction
Michigan
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| Re: new Delco ignition module [message #187428 is a reply to message #187372] |
Tue, 16 October 2012 06:12 |
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Great. Thanks guys for the clarification. My current module has a yellow dot and hence my confusion. I'm sure (hoping?) that my confusion isn't age related.
Bill Brown - '77 Buckeye Cruiser
Coshocton OH
carguybill@sbcglobal.net
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