I think he needs a "test pipe" for the 24yo car. I can't imagine that
any emissions standards would still apply, or that it would really
matter in the greater scheme of things.
--R
On 9/20/11 1:29 PM, G Mann wrote:
After market cats have to pass the same standard as OEM in order to be sold,
so you should be good in that regard.
Was your car a California car? The emissions standards for California were
much higher much sooner than everywhere else. If it was, and if it's "no
longer in california.." hmmm...
check with your local DMV test sight on that.. might not have to have one.
Worth looking into. [ask the right question to get the right answer at
DMV... ie.. is a cat required on this model, in this state?]
Grant...
On Tue, Sep 20, 2011 at 9:24 AM, Alex Chamberlain
<apchamberl...@gmail.com>wrote:
It took me a while to get around to it, but I finally got the '87 300D
with the exhaust blockage up on stands, gave all the exhaust fasteners
a repeated treatment with PB Blaster over several days, and took the
exhaust apart. No question, the catalytic converter is blocked up.
(Yes, Virginia, 603 cars,and probably all later diesels, do have one.)
I don't have $1,500 for a new factory cat from Rusty. I realize there
are a couple of less-than-legal options here, such as welding in a
straight pipe or a small muffler, or hollowing out the inside of the
cat by brute force. However, I also found this unit meant for big
pickups, which would fit neatly into the space where the factory cat
does:
http://tinyurl.com/43lzxrz
I wonder what the EPA would say about this? You're supposed to leave
emissions control systems in their factory configuration... but people
replace worn-out factory cats on gas cars with cheapo generic units
all the time (or else there wouldn't be any business in the latter).
What about on diesels? Seems to me that replacing the factory
Mercedes diesel catalyst with one using diesel emissions control
technology 25 years more advanced should meet the spirit, if not the
letter, of the law. From a technical standpoint the only problem I
can see is that the primary byproduct of the catalysis of diesel
exhaust, according to the product description I linked to, is water...
which means corrosion issues for the rest of the system downstream
from the cat.
Alex
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