[DeTomaso] Engine help needed - I've got gas! (or my car does....)

Charles McCall charlesmccall at gmail.com
Sat Nov 12 12:53:21 EST 2016 

Thank you to all who answered. 

I understand that a warm engine will contaminate less. The car was literally
idling for 45 minutes before testing, albeit in 45F ambient temperatures, so
I think it was properly warmed up. Due to the lines and waiting, it would be
difficult to come off the highway and roll right into a test bay, but I can
let it idle for as long as I'd like before entering the bay. The lines tend
to be pretty long where I go anyway...

I understand that higher rpms will reduce contamination, and therefore we
should all drive faster to save the planet! I'll raise the rpm a little for
the test. 

I'm reluctant to fiddle with leaning out the idle or playing with the timing
- neither have been touched since previous years so I have to believe that
the current settings can work. 

I'm also cautiously optimistic that the air filter is really, really
clogged. I've spent a weekend camping at Le Mans Classic in the dust, driven
down a 2,5 km dirt road a bunch of times in Denmark, etc etc. Tomorrow it's
supposed to be nice so I'll drive around the block with the air cleaner
removed and see if I notice any difference. If it's clogged enough to make
me fail emissions, maybe I'll notice something with the
seat-of-the-pants-o-meter. 

Thanks again!

-----Original Message-----
From: DeTomaso [mailto:detomaso-bounces at server.detomasolist.com] On Behalf
Of Asa Jay Laughton
Sent: sábado, 12 de noviembre de 2016 17:47
To: detomaso at server.detomasolist.com
Subject: Re: [DeTomaso] Engine help needed - I've got gas! (or my car
does....)

Also, make sure the engine is good and hot (not overheating).  Take it 
for a good long spirited drive and then immediately have the emissions 
tested.  If the line is too long... come back again later.  You get 
better test results when it's been running good and hot for a while.

Asa

Asa Jay Laughton - W7TSC, MSgt, USAFR, Retired
&  Shelley Marie
Spokane, WA
******************************
http://w7tsc.org
http://www.teampanteraracing.com


On 11/12/2016 3:04 AM, Will Kooiman wrote:
> You mean CO and not CO2, right?
>
> My understanding is to reduce CO and increase Nox, you lean the carb -
> which should also reduce CO2, since it is a byproduct of burning gasoline.
>
> If nothing has changed on your car, perhaps your carburetor just needs a
> good cleaning.
>
> The hardest part is knowing if your changes helped without taking it back
> for testing.  It would help if you could take it somewhere and tune it to
> pass.
>
> On 11/12/16, 5:30 AM, "DeTomaso on behalf of Charles McCall"
> <detomaso-bounces at server.detomasolist.com on behalf of
> charlesmccall at gmail.com>  wrote:
>
>>    Hi all
>>
>>    Went for my annual safety/technical inspection yesterday and failed
due
>>    to two points:
>>
>>    1) My car door handle is damaged as mentioned on the list a few weeks
>>    ago... a replacement is coming for Christmas, but you need to be able
>>    to open the door from outside and inside to pass inspection.
>>
>>    2) Most worrying is that my CO2 levels were excessively high. The
limit
>>    hasn't been changed compared to former years, this is the same engine
>>    that has had its emissions tested for the past 15 years and nothing
>>    that I am aware of has changed. Two questions:
>>
>>    1) What can I change/check to lower my CO2 levels to pass the test?
>>    Will begin by cleaning the air filter - to be honest I don't remember
>>    when I last cleaned it, which tells me something. It's a K&N. I seem
to
>>    remember that CO2 levels lower at higher rpms and are highest at idle?
>>    If this is the case then I'll raise the rpms at idle to pass the test.
>>    Any other tricks to temporarily reduce CO2 emissions? I'll be happy to
>>    share my trick for passing the emergency brake portion, which I've
>>    pretty much got down pat now due to practice, but not on a public
forum
>>    J
>>
>>    2) Perhaps more importantly, what is this telling me about my engine?
>>    Is it sick? Is there something that isn't working properly?
>>
>>
>>    Don't know if it matters but the engine has Aussie closed chamber
>>    heads, a Compcams 282S solid lifter camshaft, MSD 6AL, a massaged
>>    Holley 650DP. Don't think I left out anything that could be relevant
>>    here.
>>
>>
>>    I have 20 days to "fix it" and bring it back for re-testing. Thanks
>>    all!
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