Smog pump

1976-1985: 230T, 230E, 230TE, 230CE, 280E, 280TE, 280CE, 240D, 300D, 300CD, 300TD,
Post Reply
Flatwhite
B Class
Posts: 16
Joined: Sun 10 Mar, 2019 10:48 pm
Model you own: w123
Region: New South Wales
Location: West Pennant Hills

Smog pump

Post by Flatwhite » Thu 06 Jun, 2019 3:08 pm

I was just wondering if anyone has removed their smog pump? I have a 1976 W123 250. The belt was already removed from the pump when I bought the car. But there is a lot of hardware still there. I was wondering if it could all be removed and if I could just block the rail ports.
You do not have the required permissions to view the files attached to this post.

tsharkey
Große
Posts: 1026
Joined: Sat 25 Apr, 2009 9:32 am
Model you own: w123
Location: Melbourne, Vic

Re: Smog pump

Post by tsharkey » Thu 06 Jun, 2019 5:06 pm

Yep - Delete it and block the ports. In Vic, if its there and not working you can't pass RWC so best to get rid of it.
W123 1981 300TD - Family Kid mover
W202 1998 C250D Factory OM605A Turbo - Partner's daily driver
W123 1982 300CD Retro fitted OM617A Turbo - Mine
W123 1984 300TD English 5 Speed Manual
W123 1982 300TD Factory OM617A Turbo (Hans) - Project
W123 1982 300D - OM617 NA (Hektor) - Son's
W123 1985 230TE - Brother's
W123 1985 300D - Sister in Law's
1962 S-Series Valiant (Tho Daimler & Chrysler divorced, still part of the extended family)

Past benzes
W114 1969 250CE - PO put in an M110 transplant and nearly sent me around the bend
W123 1981 300TD - "Matilda" - RIP hit front side & rear but left my brother + niece A-OK

Current Projects
Coupe restoration, Turbo Wagon freshen up

mathuisella
M-100
Posts: 670
Joined: Sun 08 Jun, 2014 6:03 am
Model you own: w123
Location: Brisbane, North side.

Re: Smog pump

Post by mathuisella » Fri 07 Jun, 2019 6:11 pm

Yeah, get rid of it.

all these emissions stuff, all they do is reduce the life of the engine and make your fuel economy worse while robbing power. Therefore at the end of the day


uses more fuel/oil/crude = more environmental damage

shortens life of engine/car = a hell of a lot more environmental damage as it makes so much co2 to make the metal for a new car than it does to keen an old one on the road with 50% worse fuel economy...

Ivanerrol
Mercedes Demigod
Posts: 5948
Joined: Sat 12 May, 2007 2:21 pm
Model you own: w204
Location: Melbourne

Re: Smog pump

Post by Ivanerrol » Fri 07 Jun, 2019 6:41 pm

All these emission regulations are knee jerk reactions to some environmental warriors.

The so called emission restrictions in vehicles all have “unintended consequences”.

The 80’s no emission throttled engines performed and lasted longer than the “doctored” models.

e.g. I imported a Fiat 132 in 1976. It was a no emission engine car. Horsepower was 110. The local models were 90hp because of the emission equipment.
My car was tested by the customs department to ensure it complied with Australian emission standards. No modifications were required and it was noted my car performed better on the emission tests than the local sold cars🙄

If you can return your W123 to non emission specs it will probably run much better.

On the RWC front - On a 1976 car I doubt whether or not a modern mechanic would know what they are looking at.
W211 - E240
W204 - C280
Departed
W202 - C200, C180, C180
W126 - 380SE , 380SE (Ex SA Import), 560SEL
W124 - 300e, 260e (ex Japan)
W111 220s (Indonesia) 4 speed manual column shift
W123 230
W116 450SEL
W140 420SEL
W210 E240, E240
W209 CLK 240
W201 190e 2.6 (ex U.K.)

Ivanerrol
Mercedes Demigod
Posts: 5948
Joined: Sat 12 May, 2007 2:21 pm
Model you own: w204
Location: Melbourne

Re: Smog pump

Post by Ivanerrol » Fri 07 Jun, 2019 6:43 pm

The reality is that for all those poxy regulations governments imposed on auto makers world wide, it would have been better and cheaper to get the oil companies to provide cleaner burning fuels.
But🙄 we know where the vested interests lie.
W211 - E240
W204 - C280
Departed
W202 - C200, C180, C180
W126 - 380SE , 380SE (Ex SA Import), 560SEL
W124 - 300e, 260e (ex Japan)
W111 220s (Indonesia) 4 speed manual column shift
W123 230
W116 450SEL
W140 420SEL
W210 E240, E240
W209 CLK 240
W201 190e 2.6 (ex U.K.)

tsharkey
Große
Posts: 1026
Joined: Sat 25 Apr, 2009 9:32 am
Model you own: w123
Location: Melbourne, Vic

Re: Smog pump

Post by tsharkey » Fri 07 Jun, 2019 10:49 pm

Ivanerrol wrote:
Fri 07 Jun, 2019 6:41 pm
On the RWC front - On a 1976 car I doubt whether or not a modern mechanic would know what they are looking at.
If they see a pump not connected, they will ask for it to be. If its not there, they wont know that one "should" be there.
W123 1981 300TD - Family Kid mover
W202 1998 C250D Factory OM605A Turbo - Partner's daily driver
W123 1982 300CD Retro fitted OM617A Turbo - Mine
W123 1984 300TD English 5 Speed Manual
W123 1982 300TD Factory OM617A Turbo (Hans) - Project
W123 1982 300D - OM617 NA (Hektor) - Son's
W123 1985 230TE - Brother's
W123 1985 300D - Sister in Law's
1962 S-Series Valiant (Tho Daimler & Chrysler divorced, still part of the extended family)

Past benzes
W114 1969 250CE - PO put in an M110 transplant and nearly sent me around the bend
W123 1981 300TD - "Matilda" - RIP hit front side & rear but left my brother + niece A-OK

Current Projects
Coupe restoration, Turbo Wagon freshen up

mathuisella
M-100
Posts: 670
Joined: Sun 08 Jun, 2014 6:03 am
Model you own: w123
Location: Brisbane, North side.

Re: Smog pump

Post by mathuisella » Sat 08 Jun, 2019 12:57 pm

tsharkey wrote:
Fri 07 Jun, 2019 10:49 pm
Ivanerrol wrote:
Fri 07 Jun, 2019 6:41 pm
On the RWC front - On a 1976 car I doubt whether or not a modern mechanic would know what they are looking at.
If they see a pump not connected, they will ask for it to be. If its not there, they wont know that one "should" be there.
exactly

Flatwhite
B Class
Posts: 16
Joined: Sun 10 Mar, 2019 10:48 pm
Model you own: w123
Region: New South Wales
Location: West Pennant Hills

Re: Smog pump

Post by Flatwhite » Wed 12 Jun, 2019 11:39 am

Thanks guys!!!
Just need to work out how it will effect the vacuum lines once disconnected. There are two diagrams connected to vacuum?

mathuisella
M-100
Posts: 670
Joined: Sun 08 Jun, 2014 6:03 am
Model you own: w123
Location: Brisbane, North side.

Re: Smog pump

Post by mathuisella » Thu 13 Jun, 2019 12:45 am

Flatwhite wrote:
Wed 12 Jun, 2019 11:39 am
Thanks guys!!!
Just need to work out how it will effect the vacuum lines once disconnected. There are two diagrams connected to vacuum?
follow the lines that are connected to the pump, at the other end of them plug them up with a rubber plug from clark rubber so then it looks " proper" and they won't notice. Or if you want to. Change that 4 way rubber " X
" piece to a 3 way rubber T piece. ect:

what i found that works really well as a semi permanent solution though is a golfing tee. the little plastic thing the ball sits on. Get them in black or paint / permanent marker them black. then once inserted, cut off the excess so it's not noticable :)

Post Reply

Return to “W123”