At 03:01 PM 5/5/98 -0700, Tom Hanlon wrote:
>Listees,
>
>I may need a new coil for 84 Westfalia, 1.9 L engine. Haynes (UK) Manual
>differentiates between green sticker and gray sticker coil versions.
>The green sticker secondary resistance is specified at 2.4 to 3.5 k
>ohms.
>The gray sticker secondary resistance is specified at 6.9 to 8.5 ohms.
>The primary resistance specification "(typical)' is given as 0.5 to 0.8
>ohms.
>The present coil is green stickered.  What is the functional difference
>between the two?  And how does the green /gray difference affect the
>system? Are the coils interchangeable?
>
>Thanks,
>
>Tom Hanlon
>Palm Springs, CA
>84 Westfalia
*************************************************

Here's where you got be careful when using Haynes, especially a book that's
originally designed and published for the UK/European Market, as ignition
systems on either side of the "pond" *MAY* be different.

Here's some USA/Canadian specs (courtesy of Vanagon Bentley):

80-83 Vanagons Federal using Points:
Secondary Resistance 6K to 12K Ohms

80-83 California Vanagons, 83.5-91 Wasser Vanagon with Hall Distributors:
Secondary Resistance: 2.4K to 3.5K Ohms

Remember, these specs are for USA and Canadian Market Models.  Models
overseas may have different specs and may not be compatible with your
setup.  Typically more coil (secondary) resistance may lead to a poorer
spark with your US spec Hall Module on the firewall and Hall Generator in
the distributor.

I do agree with Ken Wilford that the coil off of a Rabbit/Jetta (80-84 w/
Hall Units) will work just fine, because it's the same coil as in your
Westy (Bosch 00 041).  The 85-93 Golf & 85-90 Jettas use a Bosch 00 061
Coil which I've heard is a slightly heavier duty version of the 00 041
coil, so it will probably work as well (in fact, it is specified in Bosch
for the 85-87 and 90-91 Vanagons - the 88-89 Vanagons use a 00 074 coil,
but all of these have the same secondary resistance as noted above).

Jim Thompson
84 Westy 2.1 * 62 Beetle * 90 Fox Wagon
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