[Icom] Spark Plug Noise on F150

[Ken]

Hi Rick. Sounds like you've done all the normal stuff, your comment that
the noise is the same with the hood open or closed sounds like "maybe" the
hood ground thingy isn't making a good contact to the hood, on Fords it
usually looks like a small copper color cheese grater and is located near
the firewall, or it might be a ground strap, obviously it's hard to see it
from hear, hi, hi, good luck, Ken


--- Rick Robinson <k8dxn@charter.net> wrote:
> I am having a good bit of spark plug noise come in on my radio and I
> would like to hear from those who have solved or reduced the intensity.
> Here is what I have and what I have done.
> 95 Ford F150 with the 300ci straight six and manual tranny.
> Icom 706MKIIG/with amps for 2&432
> Par omnis for 6,2,&432 and an sgc230 and sgc303 whip bumper mtd.
> LMR 400 cable.
> 
> I have cleaned the battery grounds and grounded the tailpipe with strap.
> New Ford OEM plug wires and Autolite platinum plugs.
> Better quality (copper inserts) cap and rotor button.
> New radio suppression condensor at coil.
> 
> The plug noise is only present when the ant. is connected.
> HF is worse than V/UHF. 
> Opening or closing the hood makes little or no difference.
> 
> I would like to stop the noise at the source which essentially is the
> plugs and/or the wires.
> I would mainly like to hear from those with the same type vehicle or
> motor who have 
> addressed this problem before.
> Spark plug testimonials.
> Plug wire testimonials, Yes I have heard of Magnacor wires but have they
> really worked on this 
> motor? And with what plugs? A lot of money to experiment with on
> wires($100).
> Contrary to most beliefs the noise blanker in my 706 works well on my
> spark plug noise
> on most all bands, but I want the noise out before the blanker.
>  
> I welcome all advice and comments and I think this will be a good thread
> for all of us 
> to learn something from our collective experiences.
> 
> Many thanks to all, 73 and see you on the radio.  Rick  K8DXN
> ----
> Your Moderator: Dick Flanagan W6OLD, icom-owner@mailman.qth.net
> Icom FAQ: http://www.qsl.net/icom/


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