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Subject:Re: Volksiebus - 88 Transporter - Rough Running Engine
From:Angus Gordon
Date:Fri, 17 Jan 2014 08:54:31 -0800

On Jan 17, 2014, at 8:36 AM, Karl Wolz <wolzphoto@Q.COM> wrote:

> What's "'nubulous" mean???  Not in my dictionary!
> 

A blockage of electrons will often result in a nub forming on the spark plug lead. Try a google search for the very similar backside pimple.

Angus

> 
>> On Jan 16, 2014, at 11:50 PM, "SDF ( Scott Daniel Foss )" <scottdaniel@TURBOVANS.COM> wrote:
>> 
>> I'll also add that spark plug wires can be quite 'nubulous.
>> 
>> I have worked on a car fpr poor running quite a bit , when in the end
>> ..'it was spark plug wires.'
>> 
>> just ask and I'll share about 4 at least, clever, cheap, easy, backyard
>> ways to test them.
>> 
>> S.
>>> On 1/16/2014 9:48 PM, OlRivrRat wrote:
>>>      Since it idles fine & gets bad under load SparkPlugWires do
>>> come to
>>> mind ~ I have seen that a number of times ~ 1st being in 1963 when my
>>> Dad & I were convinced that our '60Falcon was in need a new Trany & it
>>> turned out to be BadSparkPlugWires ~ Don't recall just how we figured
>>> that 1 out but do recall that my Dad was very relieved ~~
>>> 
>>> ORR ~ DeanB
>>> 
>>>> On 16 Jan , 2014, at 8:52 PM, JRodgers wrote:
>>>> 
>>>>> On 1/16/2014 9:43 PM, SDF ( Scott Daniel Foss ) wrote:
>>>>> re
>>>>> Suspicion: Throttle body switches out of limits and need adjusting. "
>>>>> 
>>>>> is it making contact at idle or not ?
>>>>> it either is, or it isn't.
>>>>> which one ?
>>>> 
>>>> It idles beautifully! 800 rpm.
>>>> 
>>>>> 
>>>>> if you need to know how to adjust it,
>>>>> or how to tweak it when normal adjusting won't work anymore, just
>>>>> ask.
>>>> 
>>>> Just might do that.
>>>>> 
>>>>> There is just nothing like 'having everything in spec, and every
>>>>> feature
>>>>> checked.'
>>>> 
>>>> Agreed!
>>>>> 
>>>>> if it's rough at idle..
>>>>> you start by checking compression, and for intake leaks.
>>>> Idle is smooth as silk.
>>>>> 
>>>>> how are the injector spray patterns ?
>>>> Dunno - but recently serviced.
>>>>> 
>>>>> Does the O2 sensor have a decent output ?
>>>> 
>>>> Dunno
>>>>> if no..why isn't there a new one on the engine .?
>>>> 
>>>> Just haven't gotten thee yet.
>>>> 
>>>>> if yes, why isn't it connected  ?
>>>> I disconnected it to see if it made a different, It did not!!
>>>>> 
>>>>> lol..reminds me of a time I didn't really want to work on a guys
>>>>> Jaguar
>>>>> ..I asked him..
>>>>> who's your regular jag mechanic ?
>>>>> he said I was.
>>>>> So who is your regular vanagon/waterboxer mechanic john ?
>>>> 
>>>> Guess!! Uno numero!! at your service.
>>>> 
>>>> Can't get garages around here to work on them.
>>>> 
>>>> John
>>>>> 
>>>>>> On 1/16/2014 7:22 PM, JRodgers wrote:
>>>>>> Rough engine - the latest pita I'm having to deal with on a string
>>>>>> of
>>>>>> many!! I'm on a roll!!
>>>>>> 
>>>>>> Ok - hot or cold - engine starts and idles well.
>>>>>> 
>>>>>> Conditions - ISV disconnected due to Idle issues
>>>>>> O2 Sensor Disconnected to put ECU in default mode.
>>>>>> 
>>>>>> Cold engine: starts easily, idles easily, but upon attempted
>>>>>> acceleration it bucks, kicks, snorts, hiccups, coughs - finally
>>>>>> smoothing out at speed.
>>>>>> 
>>>>>> Warm engine: starts easily, idles easily, but upon attempted
>>>>>> acceleration it  bucks, kicks, snorts, hiccups, coughs - finally
>>>>>> smoothing out at speed.  Only the bucking isn't quite so bad. Occurs
>>>>>> mostly on the initial acceleration after idling successful.
>>>>>> 
>>>>>> Suspicion: Throttle body switches out of limits and need adjusting.
>>>>>> 
>>>>>> Anyone have any ideas about this?
>>>>>> 
>>>>>> Thanks,
>>>>>> 
>>>>>> John
>>>>>> 
>>>>> 
>>>