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#1
12-28-2011, 10:44 PM
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Take A Look At This Engine
I was browsing ebay and saw an unusual modification on this engine (scroll to the photos):
What are those pipes on the head at each cylinder? Some kind of cooling scheme? Ever seen this before?
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1981 300TD 310k miles 1970 280sel 172k miles 1966 230 Fintail 162k miles "Where are we going? And why am I in this hand basket?" Last edited by Carpenterman; 12-28-2011 at 11:33 PM. 
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#2
12-28-2011, 11:40 PM
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Early nitrous.....
just kidding. Looks like air pump for smog to me but is a very early car for smog. Maybe it is a later engine.
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[SIGPIC] Diesel loving autocrossing grandpa Architect. 08 Dodge 3/4 ton with Cummins & six speed; I have had about 35 benzes. I have a 39 Studebaker Coupe Express pickup in which I have had installed a 617 turbo and a five speed manual.  [SIGPIC]..I also have a 427 Cobra replica with an aluminum chassis.
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#3
12-29-2011, 01:22 AM
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My 1967 German-spec Universal wagon had those.
 The label says that it is an air injection exhaust emission control system. 
__________________
Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 18 years ago. https://challenge22.com/ DON'T MESS WITH MY MERCEDES!  1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C 1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles
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#4
12-29-2011, 01:32 AM
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I wonder if that car was originally marketed for California? By the early 1970s (MY 72?) air injection pumps were pretty common, but in the late 60s California cars were getting such things to comply with their one-off emission standards.
My mom's 73 Malibu (Arizona car) was laden with lots of crap, including an air injection pump, but my uncle's Impala (68 or 69 California car) had it as well. I lived in Arizona at the time and later worked on lots of cars of the late 60s, but none of the Arizona cars had that stuff.
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#5
12-29-2011, 11:07 AM
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This is very interesting. Was there an air pump somewhere?
What motor is that, Squiggie? I notice the oil filter is in a different position from my m180.
__________________
1981 300TD 310k miles 1970 280sel 172k miles 1966 230 Fintail 162k miles "Where are we going? And why am I in this hand basket?"
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#6
12-29-2011, 03:36 PM
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My 280s has the remnants of a similar system as well although the pipes have been removed from the head. An air pump (which on my car is no longer hooked up to anything and yet to be removed by lazy owner) sits just below the steering pump and is driven by the same belt.
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#7
12-29-2011, 07:21 PM
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Quote:
__________________
Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 18 years ago. https://challenge22.com/ DON'T MESS WITH MY MERCEDES! 1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C 1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles
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#8
12-29-2011, 07:48 PM
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I think that piping is on the wrong side of the head for A.I.R. systems. Ones I'm familiar with inject just downstream of the exhaust valve next to the exhaust manifold/head connection.
Jim
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14 E250 BlueTEC black. 45k miles 95 E320 Cabriolet Emerald green 66k miles 94 E320 Cabriolet Emerald green 152k miles 85 300TD 4 spd man, euro bumpers and lights, 15" Pentas dark blue 274k miles
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#9
12-31-2011, 08:58 AM
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If you have the W114 service CD, you'll find the system described in with the emissions control section. -CTH
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#10
12-31-2011, 05:16 PM
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it must pump air into the combustion chamber by the plugs... the ports are on the other side. You could build a 10-1 engine and use those to inject water to prevent preignition. ...maybe.
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#11
01-01-2012, 02:58 AM
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I ended up selling that engine. The person who bought it said he wanted it because it was a "high compression" engine.
__________________
Stop paying for animal enslavement, cruelty, and slaughter. Save your health and the planet. Go vegan! I did 18 years ago. https://challenge22.com/ DON'T MESS WITH MY MERCEDES! 1967 W110 Universal Wagon, Euro, Turbo Diesel, Tail Fins, 4 Speed Manual Column Shift, A/C 1980 W116 300SD Turbo Diesel, DB479 Walnut Brown, Sunroof, Highly Optioned, 350,000+ Miles
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