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

Himes, Terry (397C) terry.himes at jpl.nasa.gov
Sat Nov 12 10:43:51 EST 2016


I'm not a mechanic but I had the same problem with my Xterra.  They were just down the block and my
car was cold.  The testing station mechanic said, take it out on the highway and get it warmed up. I brought it
back hot and it passed.


"A Purple Heart proves you were smart enough to hatch a plan,
 stupid enough to try it and lucky enough to survive!"

Terry W. Himes
JPL Jet Propulsion Laboratory
Dawn Spacecraft Team
Rosetta Sequence Team Lead
Phone: (818) 393-6261
Cell:     (818) 653-8213
Fax:     (818) 393-3147
thimes at jpl.nasa.gov<mailto:thimes at jpl.nasa.gov>
🇺🇸

From: DeTomaso <detomaso-bounces at server.detomasolist.com<mailto:detomaso-bounces at server.detomasolist.com>> on behalf of Will Kooiman <will.kooiman at gmail.com<mailto:will.kooiman at gmail.com>>
Date: Saturday, November 12, 2016 4:04 AM
To: Charles McCall <charlesmccall at gmail.com<mailto:charlesmccall at gmail.com>>, Detomaso Email List <detomaso at detomasolist.com<mailto:detomaso at detomasolist.com>>
Subject: Re: [DeTomaso] Engine help needed - I've got gas! (or my car does....)

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<mailto:detomaso-bounces at server.detomasolist.com> on behalf of
charlesmccall at gmail.com<mailto: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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-------------- next part --------------
   I'm not a mechanic but I had the same problem with my Xterra.  They
   were just down the block and my
   car was cold.  The testing station mechanic said, take it out on
   the highway and get it warmed up. I brought it
   back hot and it passed.

   "A Purple Heart proves you were smart enough to hatch a plan,

    stupid enough to try it and lucky enough to survive!"

   Terry W. Himes

   JPL Jet Propulsion Laboratory

   Dawn Spacecraft Team

   Rosetta Sequence Team Lead

   Phone: (818) 393-6261

   Cell:     (818) 653-8213

   Fax:     (818) 393-3147

   [1]thimes at jpl.nasa.gov

   From: DeTomaso <[2]detomaso-bounces at server.detomasolist.com> on behalf
   of Will Kooiman <[3]will.kooiman at gmail.com>
   Date: Saturday, November 12, 2016 4:04 AM
   To: Charles McCall <[4]charlesmccall at gmail.com>, Detomaso Email List
   <[5]detomaso at detomasolist.com>
   Subject: Re: [DeTomaso] Engine help needed - I've got gas! (or my car
   does....)

   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"
   <[6]detomaso-bounces at server.detomasolist.com on behalf of
   [7]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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   Posted emails must not exceed 1.5 Megabytes

   DeTomaso mailing list

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   use

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   approve the archiving of list messages.

   _______________________________________________
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References

   1. mailto:thimes at jpl.nasa.gov
   2. mailto:detomaso-bounces at server.detomasolist.com
   3. mailto:will.kooiman at gmail.com
   4. mailto:charlesmccall at gmail.com
   5. mailto:detomaso at detomasolist.com
   6. mailto:detomaso-bounces at server.detomasolist.com
   7. mailto:charlesmccall at gmail.com
   8. mailto:DeTomaso at server.detomasolist.com
   9. http://server.detomasolist.com/mailman/listinfo/detomaso
  10. mailto:DeTomaso at server.detomasolist.com
  11. http://server.detomasolist.com/mailman/listinfo/detomaso


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