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Re:Fouling Plugs on 4KQ
>To: River6822@aol.com
>From: "Doyt W. Echelberger" <Doyt@nwonline.net>
>Subject: Re:Fouling Plugs on 4KQ
>In-Reply-To: <ea652233.369bda83@aol.com>
>
>This sounds like a tough one. All that new stuff....I think it is a
restriction in the air intake system, maybe even ahead of the airbox and
air filter. You didn't mention checking all the way from the front.
>
>Have you checked the most distant end of the air intake system, from the
entry point under the passenger front fender, down a fabric/spring pipe,
around a 180 degree bend and up into a metal box that has a flapper valve
in it, sort of a bimetallic strip operated thing to help the car start and
warm up on cold days? Mine was all rotten and the fabric pipe was falling
apart and had holes in it. It might be restricting your airflow.
>
>Doyt Echelberger
>86 4KQ
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>
>
>
>
>At 06:28 PM 1/12/1999 EST, you wrote:
>> << It would help in the diagnosis if you described the appearance of the
>> fouling. Black greasy stuff? Grey-yellow crumbly stuff?
>>
>> >>Black Greasy Stuff. Washes off easily with brake kleen.
>> >>No anode wear on the plug at all.
>>
>> Also, it would help if you gave the make and ID numbers and age of the
>> plugs,
>>
>> >>Plugs are the Bosch Triple electrode W7DTC, new. New Bosch wires, cap and
>>rotor. (2000miles old)
>>
>> and if the fouling appears in stop-and-go city driving or mostly
>> under hard fast turnpike travel.
>>
>> >>In the past 2000 miles I have taken (2) 250 mile trips at 70 mph or
so, and
>>the rest is short (15 miles) country driving in upstate New York.
>>
>> There are charts for this kind of diagnosis, and the chart pictures show
>> several kinds of fouling, so the details will help someone answer your
>> question. Wouldn't hurt to try a few tanks of another manufacturer of
>> gasoline, like maybe Shell mid-grade, and a bottle of Techron.
>>
>> >>Currently using 89 or 93 octane (depending on price) and have used (1) 12
>>ounce bottle of techron in the last 2000 miles.
>>
>> >>I also just cleaned the ISV with Brake kleen until it was running out
>>clean, and then lubing it with Slick 50 spray lube. (preventative
maintenance)
>>
>> >>In addition I have both a hot and cold start "problem".
>>
>> >>On a cold start the car doesn't seem to keep a "choke" long enough. It
revs
>>for about 30 seconds and then drops down to just above dieing. Then as it
>>warms up it runs better.
>>
>> >>On a hot start, it takes about 7-10 seconds to catch and start up. No
idle
>>problems with the hot start.
>>
>> I hope this is enough detail and as always TIA.
>>
>> http://members.aol.com/river6822
>>
>> >>
>>
>>From: River6822@aol.com
>>Return-path: <River6822@aol.com>
>>To: quattro@coimbra.ans.net
>>Subject: Re: Fouling Plugs
>>Date: Sun, 10 Jan 1999 20:03:35 EST
>>Mime-Version: 1.0
>>Content-type: text/plain; charset=US-ASCII
>>Content-transfer-encoding: 7bit
>>
>><< It would help in the diagnosis if you described the appearance of the
>> fouling. Black greasy stuff? Grey-yellow crumbly stuff?
>>
>>>>Black Greasy Stuff. Washes off easily with brake kleen.
>>>>No anode wear on the plug at all.
>>
>> Also, it would help if you gave the make and ID numbers and age of the
>> plugs,
>>
>>>>Plugs are the Bosch Triple electrode W7DTC, new.
>>
>> and if the fouling appears in stop-and-go city driving or mostly
>> under hard fast turnpike travel.
>>
>>>>In the past 2000 miles I have taken (2) 250 mile trips at 70 mph or so,
and
>>the rest is short (15 miles) country driving in upstate New York.
>>
>> There are charts for this kind of diagnosis, and the chart pictures show
>> several kinds of fouling, so the details will help someone answer your
>> question. Wouldn't hurt to try a few tanks of another manufacturer of
>> gasoline, like maybe Shell mid-grade, and a bottle of Techron.
>>
>>>>Currently using 89 or 93 octane and have used (1) 12 ounce bottle of
techron
>>in the last 2000 miles.
>>
>>>>I also just cleaned the ISV with Brake kleen until it was running out
clean,
>>and then lubing it with Slick 50 spray lube. (preventative maintenance)
>>
>>>>In addition I have both a hot and cold start "problem".
>>
>>>>On a cold start the car doesn't seem to keep a "choke" long enough. It
revs
>>for about 30 seconds and then drops down to just above dieing. Then as it
>>warms up it runs better.
>>
>>>>On a hot start, it takes about 7-10 seconds to catch and start up. No idle
>>problems with the hot start.
>>
>>I hope this is enough detail and as always TIA.
>>
>>http://members.aol.com/river6822
>>
>>
>>