turbo City

[gene]

Hi

I have a question from a GMCer, he has a Turbo city TBI and has a knock at
2500 RPM. Turbocity cannot seem to get the knock to stop and the base
advance is less than 6 deg...

Anyone have experience with this ??

gene

Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/

 

[gene]

Hey come on all you lurkers, etc

Where are all those Turob City users ??? We need talk about this problem !!!!

gene

>Date: Fri, 14 Jul 2000 09:49:42 -0700
>To: gmcmotorhome, gmcegon-helga
>From: gene
>Subject: turbo City
>
>Hi
>
>I have a question from a GMCer, he has a Turbo city TBI and has a knock at
2500 RPM. Turbocity cannot seem to get the knock to stop and the base
advance is less than 6 deg...
>
>Anyone have experience with this ??
>
>gene
>
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/

 

[peter brandt]

Gene,

The easiest way to see what's going on would be to hook up a professional
scan tool, and have a passenger watch the "live data" while driving at 2500
RPM. Does the coach have the EST setup? If it does, the scanner should even
display spark advance. Ask the independent shops in your area, I'm sure
someone has a SnapOn MT2500 or a similar scanner.

Peter
77 Eleganza II
Colorado

- ----- Original Message -----
From: "gene"
To:
Sent: Saturday, July 15, 2000 4:42 PM
Subject: GMC: turbo City

>
>
> Hey come on all you lurkers, etc
>
> Where are all those Turob City users ??? We need talk about this problem
!!!!
>
> gene
>
>
> >Date: Fri, 14 Jul 2000 09:49:42 -0700
> >To: gmcmotorhome, gmcegon-helga
> >From: gene
> >Subject: turbo City
> >
> >Hi
> >
> >I have a question from a GMCer, he has a Turbo city TBI and has a knock
at
> 2500 RPM. Turbocity cannot seem to get the knock to stop and the base
> advance is less than 6 deg...
> >
> >Anyone have experience with this ??
> >
> >gene
> >
> >
> Genef -- 77PB/ore/ca
> GMC MOTORHOME INFORMATION
> mr.erf
> http://www.california.com/~eagle/
>

 

[gene]

I tried one of those on my Howell and had hard time keeping it locked in...

These are not really adjustable, so we need to see if anyone else is having
a problem.

gene

>Gene,
>
>The easiest way to see what's going on would be to hook up a professional
>scan tool, and have a passenger watch the "live data" while driving at 2500
>RPM. Does the coach have the EST setup? If it does, the scanner should even
>display spark advance. Ask the independent shops in your area, I'm sure
>someone has a SnapOn MT2500 or a similar scanner.
>
>Peter
>77 Eleganza II
>Colorado
>
>----- Original Message -----
>From: "gene"
>To:
>Sent: Saturday, July 15, 2000 4:42 PM
>Subject: GMC: turbo City
>
>
>>
>>
>> Hey come on all you lurkers, etc
>>
>> Where are all those Turob City users ??? We need talk about this problem
>!!!!
>>
>> gene
>>
>>
>> >Date: Fri, 14 Jul 2000 09:49:42 -0700
>> >To: gmcmotorhome, gmcegon-helga
>> >From: gene
>> >Subject: turbo City
>> >
>> >Hi
>> >
>> >I have a question from a GMCer, he has a Turbo city TBI and has a knock
>at
>> 2500 RPM. Turbocity cannot seem to get the knock to stop and the base
>> advance is less than 6 deg...
>> >
>> >Anyone have experience with this ??
>> >
>> >gene
>> >
>> >
>> Genef -- 77PB/ore/ca
>> GMC MOTORHOME INFORMATION
>> mr.erf
>> http://www.california.com/~eagle/
>>
>
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/

 

[gene]

I think they changed that, but the knock still occures at about 2500 rpm.
It is ok at other rpm so must be something in the control system.

yes they control the spark.

I just wonder where all the turbo city users are ??

gene

>Gene,
>
>Does the Turbo City system also control ignition timing? If so, I'd guess
>it's a bad knock sensor.
>
>Correct me if I'm wrong (PLEASE) but I think that the knock sensor is just a
>piezo electric sensor and IIRC they have a specific frequency range that
>they operate at.
>
>Just a guess, but then, you asked for it ;~)
>
>Larry Davick
>Enviously Lurking
>
>
>>From: gene
>>Reply-To: gmcmotorhome
>>To: gmcmotorhome
>>Subject: GMC: turbo City
>>Date: Sat, 15 Jul 2000 15:42:22 -0700
>>
>>
>>
>>Hey come on all you lurkers, etc
>>
>>Where are all those Turob City users ??? We need talk about this problem
>>!!!!
>>
>>gene
>>
>>
>> >Date: Fri, 14 Jul 2000 09:49:42 -0700
>> >To: gmcmotorhome, gmcegon-helga
>> >From: gene
>> >Subject: turbo City
>> >
>> >Hi
>> >
>> >I have a question from a GMCer, he has a Turbo city TBI and has a knock
>>at
>>2500 RPM. Turbocity cannot seem to get the knock to stop and the base
>>advance is less than 6 deg...
>> >
>> >Anyone have experience with this ??
>> >
>> >gene
>> >
>> >
>>Genef -- 77PB/ore/ca
>>GMC MOTORHOME INFORMATION
>>mr.erf
>>http://www.california.com/~eagle/
>
>________________________________________________________________________
>Get Your Private, Free E-mail from MSN Hotmail at http://www.hotmail.com
>
>
Genef -- 77PB/ore/ca
GMC MOTORHOME INFORMATION
mr.erf
http://www.california.com/~eagle/

 

[clifford cupples]

> [Original Message]
> From: gene
> To:
> Date: 7/15/00 5:46:56 PM
> Subject: GMC: turbo City
>
>
>
> Hey come on all you lurkers, etc
>
> Where are all those Turob City users ??? We need talk about this problem
!!!!
>
>
> >
> >I have a question from a GMCer, he has a Turbo city TBI and has a knock
at
> 2500 RPM. Turbocity cannot seem to get the knock to stop and the base
> advance is less than 6 deg...
> >
> >Anyone have experience with this ??
> >
> >gene
> >
> I would like to help but I haven't had that problem and haven't heard
from anyone else that i know has.

- --- clifford cupples
- --- w4bjc
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