[W126 Coupe] Regarding emission equipment on engines..

[Josh Allen]

Well, my home of record is in a non-testing area of Oregon, but I don't 
want to completely gut emissions just to thumb my nose at the 
authorities.  I just can't see adding unnecessary clutter to the engine 
if it doesn't have to be there.

Honestly, 90% of this stuff on top of the engine will be disappearing as 
soon as I have the engine up and running.  I'm going to swap to 
MegaSquirt EFI.  I'm just trying to figure out what has to be there to 
run properly.
As far as the air pump part goes, the "new" engine doesn't even have the 
bungs on the exhaust manifold for them to plump in to, so I'm assuming 
that this engine didn't have that emissions system on it from the factory.

-Josh

Mike R. wrote:

> Where are you located?

>

> I failed emissions on my 560SEL in Vegas because they finally realized 

> that I had removed the air pump. The emission numbers were fine, it 

> was the "visual inspection" that caused the failure. I bolted the pump 

> back on, added a belt to it, and hid the connector in a wiring bundle 

> so it would NEVER get energized. Passed.

>

> Don't take off too much "stuff" and fail the visual, which depends on 

> where the car is tested.

>

> Later,

> Mike R.

> Vegas, baby!

> ----- Original Message ----- From: "Josh Allen" <heyallen at null-ptr.net>

> To: "Mercedes Coupes Mailing Lists" <mbcoupes at mbcoupes.com>

> Sent: Sunday, March 02, 2008 7:52 AM

> Subject: [W126 Coupe] Regarding emission equipment on engines..

>

>

>> Hearing Jonathan talk about the emissions warranty on the new engines 

>> reminded me of a question for you all.

>>

>> While I was working on tearing down and assessing the condition of 

>> the replacement 5L m117 engine for my car, I noticed that it was 

>> missing a number of air injection lines.

>> I'm not sure just what all is missing, as I haven't compared in 

>> detail yet, but the biggest difference, and the one I first noticed, 

>> was that it doesn't have the air pump feeding the exhaust, or the air 

>> lines and injector bushings with air passages in them.

>>

>> Does this make any real difference to these engines?  I'm thinking 

>> that I may just simplify my engine bay and leave all the apparently 

>> optional stuff out when I put the engine back together.

>>

>> Thanks for any input.

>>

>> -Josh

>

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