Re: started cleaning connections and adding ground wires but problemsare getting worse

[T Berk <tberk@mindspring.com>]

jgilmore@c-map.com wrote:
> 
> Car: 88 16v Scirocco
> 
> I started cleaning connections and adding ground wires but problems are
> getting worse
> 
> Original problem Post listed below (At End of Email):
> 
> New issues:
>         Low Power
>         Valve taping
>         Battery light comes on at x RPM were x is slightly lower everyday
>                 it started at 6000 3 weeks ago and now comes one at 3500
>                 as a note x rpm is 500 rpm higher with the blower and
> defrost on
> 
> What I have done. (Last 2 weeks)
>         replace +Battery cable to starter with 2 gauge
>         cleaned all connections at +starter and +-Battery and coated with
> Vaseline
>         Added Extra 4 Gauge - From battery to frame.
>         Clean 10/40 oil / filter / proper levels maintained
>         Replaced Fuel filter
>         I have started using 93 octane because of the valve tap (Still taps
> sometimes but not as harshly)

High octane won't help valve tap.  It will help avoid pre detonation of
the fuel in a hot cylinder.


>         ran a tank of injector cleaner for shits and grins
>         (within one year)
>                 Plugs/cables/cap/rotor
>                 adjusted timing, idle, mixture
>                 O2 sensor/exhaust
>                 replaced broken ground strap from head to coil mount with 4
> gauge cable
> 
> What I didn't do.
>         direct connections from battery to alt, Not sure what to do/what
> goes where

- Battery to Alt 12+ (Hot Side) 
Some folks run a good size cable from the battery 12V+ to the Starter
and then from there another to the Alt's 12v output post. Cables overlap
on the Stater's main electrical post.

>         Added direct - connection from battery to Starter, Not sure what to
> do/what goes where

- Battery to Starter
See above. Nice 4g would be great here.


>         Replace Negative Battery Cable Not sure were the other end connects

- Battery - to Frame & Block.
This is usually a two step cable, in it's middle it connects via a bolt
to the crush zone part of the frame. Right under the battery. Finally it
continues on and connects to the side of the block. Folks some times
replace it with two cables of sufficient length that overlap in the middle.

<snipped>
> thanks
> Jeremiah
> 88 16v
> 

You might add a medium wire from the Alt's CASE (use one of those bolt
ends sticking out the back, the ones that keep the cases halves
together, and run this to a valve cover gasket bolt.

This to _ground_ the Alt, not to get 12v directly to the block.
Therefore ground just the CASE.

hth,
TBerk

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