Date: Wed, 15 Jun 2011 14:56:21 -0700
Reply-To: Jake de Villiers <crescentbeachguitar@GMAIL.COM>
Sender: Vanagon Mailing List <vanagon@gerry.vanagon.com>
From: Jake de Villiers <crescentbeachguitar@GMAIL.COM>
Subject: Re: The Dreaded Emissions test
In-Reply-To: <SNT109-DS26681FA80E53F6552884DC66B0@phx.gbl>
Content-Type: text/plain; charset=ISO-8859-1
Du-u-ude, in California the people ARE revolting! ;)
On Wed, Jun 15, 2011 at 1:13 PM, Steven P Smith <kewsps@hotmail.com> wrote:
> The CA legislature has devolved into doing nothing more than state
> sectioned
> bullying of the many for the benefit of the few. Democracies always end
> this
> way, so it's OK. Perhaps the people should be revolting.
> Steven
>
>
> -----Original Message-----
> From: Roland
> Sent: Wednesday, June 15, 2011 12:48 PM
> To: vanagon@GERRY.VANAGON.COM
> Subject: Re: The Dreaded Emissions test
>
> At the risk of invoking some feedback about insufficient ethical and
> righteous behaviors on my part :).
>
> I'll stick my neck out and mention that my Vanagon passed smog with the
> non-California version of the Cat. For example:
> http://www.van-cafe.com/home/van/smartlist_1192/catalytic_converter.html
> which is only $145 vs the other one at $325. At the time about a year and
> half ago the lowest cost Cali Cat that I could find was about $450. It
> just
> didn't make sense to please the "questionable" beaurocrats for that much
> more money vs simply make sure that my Vanagon passed the smog test.
>
> Roland
>
> On Wed, Jun 15, 2011 at 3:19 AM, Dennis Haynes
> <d23haynes57@hotmail.com>wrote:
>
> Those numbers would have destroyed a healthy Cat so yes you should plan to
>> replace it. The O2 sensor working properly should be adjusting the CO to
>> ~.5% and a working Cat should bring it to near 0. Be sure the ignition
>> timing is set right and avoid the temptation to over advance it. This can
>> make HC and CO read high at idle. Idle speed should be 850-950 rpm.
>>
>> Dennis
>>
>> -----Original Message-----
>> From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On Behalf
>> Of
>> Ken Wyatt
>> Sent: Tuesday, June 14, 2011 11:45 PM
>> To: vanagon@GERRY.VANAGON.COM
>> Subject: Re: The Dreaded Emissions test
>>
>> After a day of messing around with timing. mixture and idle rpms and such
>> we're still borderline compliance. O2 sensor is checing out so we are
>> leaning towards the catalytic converter being the culprit.
>> I'll have to check on the Compression and leak down as I don't have that
>> data.
>>
>> Kw
>> 82 westy
>>
>> On Sun, Jun 12, 2011 at 9:02 PM, Dennis Haynes <d23haynes57@hotmail.com>
>> wrote:
>> > NOx emissions are the result of heat, pressure, and excess O2. As such
>> > testing requires the engine to be loaded. That is why some areas use
>> > the dyno as this is the only way to test for NOx emissions. Now for CO
>> > and HC here is some diagnostic information.
>> >
>> > CO (carbon monoxide) is the result of incomplete combustion due to O2
>> > not being combining with the fuel, usually caused by a rich mixture or
>> > poor vaporization and mixing.
>> >
>> > Excessive HC (hydrocarbons) is the result of fuel that never got
>> > ignited or escaped before the burn was complete. Although with good
>> > ignition and mixture the burn should finish in the catalytic converter
>> > or exhaust. This is why many cars have air pumps or other means to get
>> air
>> into the exhaust.
>> > The usual causes of high HC are "lean Misfire", bad valves, pistons,
>> > ignition miss, or ignition timing way off.
>> >
>> > If your van does not have an O2 sensor for final control you should be
>> > adjusted somewhere near 1% pre cat at idle.
>> >
>> > With the engine being fairly new I have to ask if it was tested as
>> > part of the installation? Has the engine operation changed at all?
>> > Maybe it wasn't right from the get go. The high idle is a sign things
>> > were not set up correctly.
>> >
>> > As part of the trouble shooting process and to make sure the engine is
>> > good you need to get a compression and leak down test performed. These
>> > engines are known for valve and head seal issues. The heads not
>> > sealing to the cylinders are often the result of the cases being worn or
>> distorted.
>> >
>> > Dennis
>> >
>> >
>> > -----Original Message-----
>> > From: Vanagon Mailing List [mailto:vanagon@gerry.vanagon.com] On
>> > Behalf Of Ken Wyatt
>> > Sent: Sunday, June 12, 2011 12:26 PM
>> > To: vanagon@GERRY.VANAGON.COM
>> > Subject: Re: The Dreaded Emissions test
>> >
>> > Opps sorry I somehow deleted the results of the second test on a very
>> > warm engine. It still failed after freeway driving. HC was still
>> > over the max of 220 at 437 PPM versus 469 PPM cold. CO was 2.83% cold
>> > and 1.577% warm. The CO2 on the first test was 12.94% and O2% was
>> > 1.46% at 2500 RPM. At Idle it was CO2 at 11.37% and O2 at 2.07 %. It
>> > appears we don't check NOx anymore here in Salt Lake.
>> >
>> > I had always heard that the older VW aircooled engines were designed
>> > to run slightly rich to enhance engine cooling. Anyone care to
>> > comment on that. My mechanic is an old VW guy from way back and I
>> > feel he knows the engines. He completely built it last year with new
>> > heads and all. So i am having him take the first look at it this week
>> > while I'm working, hoping its just a small adjustment. Will report
>> > back.
>> >
>> > Cheers,
>> > Ken Wyatt
>> > 82 westy
>> > Thinking of mounting my 1976 Lincoln Continental Mark IV's large
>> > chrome grill onto my 82 Westy, as soon as I add a radiator for the
>> > 460. It fits the front vanagon contours well.
>> >
>> > On Fri, Jun 10, 2011 at 12:42 PM, Ken Wyatt <57skibum@gmail.com> wrote:
>> >> Howdy vanagonauts, I'm having trouble getting my 1982 westy to pass
>> >> Utah emissions. Scary thing is that it has a new (3000 miles)
>> >> aircooled 2.0 l FI engine. I thought it would be no problem to pass.
>> >> But NOT!! I'm failing on the idle HC and CO.
>> >>
>> >> Last Friday for the first try, the mechanic tested the engine cold
>> >> and got HC at 469 (passing is 220 or less), and 2.83 on CO (passing
>> >> is 1.2% or less) The higher 2500 RPM test resulted in HC 203 and CO
>> >> at
>> >> 0.979 % which was passing just barely passing there.
>> >>
>> >> I figured that it was just the cold engine. So today I drove it
>> >> until it was completely at operating temp quick thoughts on where to
>> >> start or what to check? The engine sounds perfectly VW to me. The
>> >> idle is running about 1100 and I'm wondering if that's slightly high.
>> >>
>> >> It sure would be nice to go camping but no registration..............
>> >> No
>> > fun!!
>> >> Ken Wyatt
>> >> 82 westy
>> >>
>> >
>> >
>>
>>
--
Jake
1984 Vanagon GL 1.9 WBX - 'The Grey Van'
1986 Westy Weekender/2.5 SOHC Subie - 'Dixie'
Crescent Beach, BC
www.thebassspa.com
www.crescentbeachguitar.com
http://subyjake.googlepages.com/mydixiedarlin%27
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