He probably knows, it will be a very fine grey powder. It's usually from the
electrodes inside the cap & excess arcing can spray the stuff all over the
inside of the cap. I like the old caps with the copper electrodes - copper
oxide is not conductive.

Thanks,
Tom Hargrave
Our Web Sites:
www.kegkits.com
http://www.kegkits.com/JABF/
www.stir-plate.com
www.andyshotsauce.com
256-656-1924
 

-----Original Message-----
From: Vanagon Mailing List [mailto:vanagon@GERRY.VANAGON.COM] On Behalf Of
Larry Alofs
Sent: Tuesday, July 14, 2009 9:16 PM
To: vanagon@GERRY.VANAGON.COM
Subject: Re: temp sensors?

How do you know it was aluminum oxide and where do you think it came from?

Larry A.

On Tue, Jul 14, 2009 at 6:17 PM, jonathan waters<shponglevan@gmail.com>
wrote:
> Thanks Everyone!
>
> I found aluminum oxide coating on the distributor cap,
> that was stopping the bus from running well
> especially at lower rpm's.
> ( and, surprisingly, to me, the cap isnt even 4K old? )
>
> And that got me back on the road
> to Canada and eventually home.
> (and Internet access as well)
>
> But, I am still having problems with High RPM's
> running about 2K instead of 1.
>
> I'm guessing tps too.
>
> This is a syncro I guess I should have added.
> Does this affect the location of the temp sensors?
>
> Thanks again,
> Jonathan
>
>
> On Sat, Jul 4, 2009 at 6:48 PM, Scott Daniel - Turbovans <
> scottdaniel@turbovans.com> wrote:
>
>> adjustment of the throttle switch pops to mind.
>> those get off ......I find them out of adjustment 'usually' even.
>> I find some worn enough that you can't adjust it to spec, without
>> lengthening �a slot an adjustment screw slides in.
>>
>> Timing is probably �right ....but always important to consider that one.
>> oxygen sensor ?
>> does it run strongly cold, but less so warm ?
>> what's the status of the fuel filter ?
>>
>> fwiw..........sure, I find tired tune up parts, and cheap tune up parts
>> ........
>> and replace those of course ........but I never find 'poor running' is
>> really due to 'tune up parts' ..........not unless there's a bad plug
wire
>> say , or fouled or very tired spark plug .......my point is ........
>> yes, tune up parts have to be decent and to spec, and adjusted right
>> .......
>> but when they don't run right ..........it's usually things other than
tune
>> up parts ..but they do have to be right of course as well.
>>
>> Air flow meter ?
>> the only symptom I get on those is uneven running .......like weak spots
in
>> the acceleration curve . �I consider them a weak link because it's where
>> electrons interface with something mechanical...........always a weak
area
>> in my opinion. �Next technology up, uses an air mass meter with no moving
>> parts .......no sweeper arm or anything hokey light that .
>> vacuum leaks ?
>> I had one waterboxer engine that ran, started nicely......but just didn't
>> rev out well.
>> You could even tell............open the throttle.......it was getting the
>> air, but no fuel to go with it.
>> I found about a dozen intake air leaks on that engine .......
>> and that's all it was. It was leaking at the intake runner rubber boots,
at
>> the throttle body rubber seal, at the screws that secure the fuel
pressure
>> regulator bracket even �.......lots of tiny leaks. �That's all it was
too.
>>
>> speaking of ........fuel pressure ..........usually good, but you need to
>> always consider or test for that one too.
>> Scott
>> www.turbovans.com
>>
>>
>> ----- Original Message ----- From: "jonathan waters" <
>> shponglevan@GMAIL.COM>
>> To: <vanagon@GERRY.VANAGON.COM>
>> Sent: Saturday, July 04, 2009 7:08 AM
>> Subject: temp sensors?
>>
>>
>>
>> Hi,
>>> I have a 2.1, and it started to run kind of funny?
>>> It starts good, and has been running real good.
>>> until now that is!
>>> I have given it a real good tune up.
>>> Even a new cat.
>>> but what I am experiencing now,
>>> after just driving 800 miles,
>>> is a lack of power on starting to drive?
>>> I have to rev it up to get it to have any Ump!
>>> I am wondering if it may be a temp sensor?
>>> Is there 2 of them?
>>> And where are they located?
>>> Any help from you guys would be much appreciated!
>>> Thanks,
>>> jon
>>>
>>
>>
>