RE: [DML] Re: Tune-up

["John Hervey" <john@xxxxxxxxxxxxxxxx>]

Dave, 
I hate to dispute you but there are 100's of cars running Plat +4 plugs with
no problems. The problem is they might show a problem up and the plugs get
blamed for or someone may not know how to fix the problem and blame the
plug. HR6 is a cold running plug that will sludge up faster where as the HR8
to 9 are the medium range that will burn off slug / carbon faster for the
trolling around most DeLoreans do. The Platinum + 4 is a medium heat range
plug that is good for the car.
John Hervey
www.deloreanautoparts.com





-----Original Message-----
From: dmcnews@xxxxxxxxxxxxxxx [mailto:dmcnews@xxxxxxxxxxxxxxx] On Behalf Of
daveswingle2
Sent: Saturday, April 17, 2010 10:26 PM
To: dmcnews@xxxxxxxxxxxxxxx
Subject: [DML] Re: Tune-up

Get rid of the +4 plugs. They can cause this problem. Put in Bosch HR6DC or
HR6DS or HR6DP gapped at the correct spec, and you'll fix it. 

Running poor when wet is a sign of a problem with the wiring or a cracked
cap. Make sure everything is installed tightly. 

--- In dmcnews@xxxxxxxxxxxxxxx, "stainlessilusion" <5n-@...> wrote:
>
> Guys; I am working on my D a little since I have a rough running engine,
and am curious what the original coil has for output voltage. I'm looking at
John's 25,000 volt Bosch coil [as an upgrade?] since I doubt the stock one
has that much punch to it. I have +4 plugs that are a little old but few
miles and are still in good shape; also Johns 8mm wires and upgraded
resistor. I once used the blaster coil with my setup but I remember having
problems with it - I believe it was melted distributor rotor but can't
remember correctly. Nonetheless, with what I have as far as plugs, wires and
resister; which coil should I be going after? My engine runs like garbage
when it rains, and when it is dry it sputters at stops from time to time and
just doesn't feel "right". Thanks guys -----Dani B. in FL!
>




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