280CE EGR Valve Gasket?

1976-1985: 230T, 230E, 230TE, 230CE, 280E, 280TE, 280CE, 240D, 300D, 300CD, 300TD,
Post Reply
nea100
C Class
Posts: 49
Joined: Wed 09 Dec, 2009 5:16 pm
Model you own: w123
Location: Mackay Qld

280CE EGR Valve Gasket?

Post by nea100 » Mon 30 Oct, 2017 3:02 pm

Out for a run yesterday and could hear a ticking noise on acceleration. Upon investigation found the EGR valve mounting on the exhaust had sprung a leak. I'm not sure on how the mount should be but it seems there are too many gaskets here, and they have blown out on one side.

Can anyone please help with this as I am thinking there maybe should only be the one gasket between the valve and the header? One of the bolts doesn't look too good either - could be broken - oh dear.....

Thanks,
Col.

Image
1984 300D - Gold, Gold, Gold
1984 280CE - Silver Blue - Undergoing minor restoration
1970 Valiant VG VIP - White - Distant relative

User avatar
Tony From West Oz
OZBENZ moderator
Posts: 3222
Joined: Mon 20 Jun, 2005 9:04 pm
Model you own: w202
Location: Bedfordale WA

Re: 280CE EGR Valve Gasket?

Post by Tony From West Oz » Mon 30 Oct, 2017 5:10 pm

Get a sheet of galvanised iron and 2 gaskets. Cut the galv to be slightly smaller than the gasket outline. drill / punch the 2 bolt holes but not the EGR path thru the gasket.
Reassemble with a gasket on each side of the galvanised steel with the EGR valve on the outside. Bolt it up tight.
See MB Spares for the gaskets and replacement studs too.
This should be an easy job. It may already have a blanking plate installed.
Life is a journey, with problems to solve, lessons to learn, but most of all, experiences to enjoy.

'83 W123 300D 325000km (Wife's car Josephine - sold).
'84 W123 300D replaced good OM617 912 with OM617 952 and enjoyed having good acceleration for the first time since first driving a 300D in 2002 - became engine and trans donor for 300CD Turbodiesel conversion. Now parted out.
'86 W124 300D sold (Wife's old car - sold )
'85 W123 300CD, 275 000km (Fatmobile) rebuilt turbodiesel from previous Fatmobile transplanted into 280CE (SOLD)
'99 W202 C250 Turbodiesel (my darling Wife's car - Sold)
'98 W202 C250 Turbodiesel (my car - Sold)
'06 Ssanyong Musso Crew Cab 2WD Ute (OM662 diesel and Auto Transmission)

User avatar
Lance
Adenauer
Posts: 374
Joined: Thu 06 Mar, 2014 9:33 pm
Model you own: w114
Location: Altona Meadows, Melbourne

Re: 280CE EGR Valve Gasket?

Post by Lance » Mon 30 Oct, 2017 5:29 pm

Looks like mine. But yours is not operational as one of the vacuum lines if disconnected. Tony, does your suggested modification improve performance?
Regards,
Lance Smart

W114 280E 5 speed manual
W123 280E

User avatar
Tony From West Oz
OZBENZ moderator
Posts: 3222
Joined: Mon 20 Jun, 2005 9:04 pm
Model you own: w202
Location: Bedfordale WA

Re: 280CE EGR Valve Gasket?

Post by Tony From West Oz » Mon 30 Oct, 2017 5:57 pm

Yes, you no longer have a lot of exhaust gas coming into your inlet manifold and causing the engine to run rich (more Co2 and less O2 in the mixture) so fuel economy and/or performance is improved.
Emissions resulting are and increase of NOx due to higher combustion temperatures, but a significant decrease in CO2 due to improved combustion and better fuel economy.
Which is better? Well the scientists may have an answer, but I think lower CO2 is my preference.
Life is a journey, with problems to solve, lessons to learn, but most of all, experiences to enjoy.

'83 W123 300D 325000km (Wife's car Josephine - sold).
'84 W123 300D replaced good OM617 912 with OM617 952 and enjoyed having good acceleration for the first time since first driving a 300D in 2002 - became engine and trans donor for 300CD Turbodiesel conversion. Now parted out.
'86 W124 300D sold (Wife's old car - sold )
'85 W123 300CD, 275 000km (Fatmobile) rebuilt turbodiesel from previous Fatmobile transplanted into 280CE (SOLD)
'99 W202 C250 Turbodiesel (my darling Wife's car - Sold)
'98 W202 C250 Turbodiesel (my car - Sold)
'06 Ssanyong Musso Crew Cab 2WD Ute (OM662 diesel and Auto Transmission)

nea100
C Class
Posts: 49
Joined: Wed 09 Dec, 2009 5:16 pm
Model you own: w123
Location: Mackay Qld

Re: 280CE EGR Valve Gasket?

Post by nea100 » Tue 31 Oct, 2017 4:05 pm

Thanks. Unfortunately one of the studs is broken off in the header, so I'll have to get the remains out of there first. No blanking plate though.

This car has had a few "'changes" made by the previous owner and the missing vacuum line is one of them, so I don't know exactly what is going on there as yet, still learning. Can it just be blanked off, will it affect the running of the motor, what do you do with the vacuum lines?

The car runs OK, but does like to visit petrol stations.

Thanks again,
Col.
1984 300D - Gold, Gold, Gold
1984 280CE - Silver Blue - Undergoing minor restoration
1970 Valiant VG VIP - White - Distant relative

User avatar
Tony From West Oz
OZBENZ moderator
Posts: 3222
Joined: Mon 20 Jun, 2005 9:04 pm
Model you own: w202
Location: Bedfordale WA

Re: 280CE EGR Valve Gasket?

Post by Tony From West Oz » Tue 31 Oct, 2017 10:24 pm

nea100 wrote:
Tue 31 Oct, 2017 4:05 pm
Thanks. Unfortunately one of the studs is broken off in the header, so I'll have to get the remains out of there first. No blanking plate though.

This car has had a few "'changes" made by the previous owner and the missing vacuum line is one of them, so I don't know exactly what is going on there as yet, still learning. Can it just be blanked off, will it affect the running of the motor, what do you do with the vacuum lines?

The car runs OK, but does like to visit petrol stations.

Thanks again,
Col.
Yes, adding a blanking plate will improve power or economy (a bit hard to get both at the same time). If you use the improved power, the economy will drop.
Soak the broken stud with "Penetrene" or similar penetrating lubricant. Drill a hole suitable for an "Ezi Out" to be used, to unscrew the remains of the stud. Screw in the new stud.
Life is a journey, with problems to solve, lessons to learn, but most of all, experiences to enjoy.

'83 W123 300D 325000km (Wife's car Josephine - sold).
'84 W123 300D replaced good OM617 912 with OM617 952 and enjoyed having good acceleration for the first time since first driving a 300D in 2002 - became engine and trans donor for 300CD Turbodiesel conversion. Now parted out.
'86 W124 300D sold (Wife's old car - sold )
'85 W123 300CD, 275 000km (Fatmobile) rebuilt turbodiesel from previous Fatmobile transplanted into 280CE (SOLD)
'99 W202 C250 Turbodiesel (my darling Wife's car - Sold)
'98 W202 C250 Turbodiesel (my car - Sold)
'06 Ssanyong Musso Crew Cab 2WD Ute (OM662 diesel and Auto Transmission)

Jader1973
E Class
Posts: 72
Joined: Wed 25 Jun, 2008 7:19 pm
Model you own: w123
Location: Melbourne, VIC

Re: 280CE EGR Valve Gasket?

Post by Jader1973 » Sun 27 May, 2018 11:16 am

nea100 wrote:
Mon 30 Oct, 2017 3:02 pm
Out for a run yesterday and could hear a ticking noise on acceleration. Upon investigation found the EGR valve mounting on the exhaust had sprung a leak. I'm not sure on how the mount should be but it seems there are too many gaskets here, and they have blown out on one side.

Can anyone please help with this as I am thinking there maybe should only be the one gasket between the valve and the header? One of the bolts doesn't look too good either - could be broken - oh dear.....

Thanks,
Col.

Image
I was just wondering where you go to with this? I assume you replaced it with something?

My 1982 280TE has done exactly the same thing. Based off a search of a slightly dodgy Russian EPC site and a look on Pelican Parts the part number for the gasket is 1041420480. However the image on Pelican Parts looks nothing like the multilayered gasket that is already there - it is a much thinner metal gasket.

I'm a bit stumped.

Thanks.

mathuisella
500 K
Posts: 509
Joined: Sun 08 Jun, 2014 6:03 am
Model you own: w123
Location: Brisbane, North side.

Re: 280CE EGR Valve Gasket?

Post by mathuisella » Mon 28 May, 2018 10:48 am

I'm on the thoughts that blocking EGR is better for engine longevity. not feeding your exhaust waste back into the inlet....

nea100
C Class
Posts: 49
Joined: Wed 09 Dec, 2009 5:16 pm
Model you own: w123
Location: Mackay Qld

Re: 280CE EGR Valve Gasket?

Post by nea100 » Mon 28 May, 2018 2:22 pm

I did as Tony suggested and made up a blanking plate and cut a gasket, and used some sealant.

Had to drill and tap out the header as one of the studs had rusted off - cause of problem. Fitted new bolts from a local bolt shop.

All good now and no more ticking noises.

Still don't know what to do with the vacuum line but the car starts and runs just fine.

Image
1984 300D - Gold, Gold, Gold
1984 280CE - Silver Blue - Undergoing minor restoration
1970 Valiant VG VIP - White - Distant relative

User avatar
Bartman4800
300 SLR
Posts: 1905
Joined: Fri 10 Oct, 2008 12:10 am
Model you own: w111
Location: Perth WA

Re: 280CE EGR Valve Gasket?

Post by Bartman4800 » Mon 28 May, 2018 2:44 pm

I think Tony's idea was to put a blanking plate on the hole, and get rid of the EGR valve altogether.

Remove the vacuum hose and make sure it is blocked (to avoid sucking in false air)


Bart
1963 220 Sb Sedan "Kermit" (Australian Assembly)
1960 220 Sb Sedan "Zum Schlachten" (Early German Assembly, with a torsion bar spring for the bonnet) - Stored in Country WA
1981 Subaru Brumby 1.8 with Weber and 5-speed box "little utie" - Sold to another enthusiast!
2006 Ford Focus "daily driver"
2002 VW Passat V6 30V Station Wagon (SOLD - This car into a money pit)
2011 Kia Sportage "Missus commuter Bus"
2002 Mitsubishi Rosa Bus (converting it to a motor home)

User avatar
Tony From West Oz
OZBENZ moderator
Posts: 3222
Joined: Mon 20 Jun, 2005 9:04 pm
Model you own: w202
Location: Bedfordale WA

Re: 280CE EGR Valve Gasket?

Post by Tony From West Oz » Mon 28 May, 2018 3:09 pm

Removing it would cause failure of emissions inspection of roadworthy check in most cases, although it may not have the "smog" pump in operation either.
Blanking it and reconnecting all vacuum hoses makes it look original, but your engine and the environment will be better off for doing it.
Life is a journey, with problems to solve, lessons to learn, but most of all, experiences to enjoy.

'83 W123 300D 325000km (Wife's car Josephine - sold).
'84 W123 300D replaced good OM617 912 with OM617 952 and enjoyed having good acceleration for the first time since first driving a 300D in 2002 - became engine and trans donor for 300CD Turbodiesel conversion. Now parted out.
'86 W124 300D sold (Wife's old car - sold )
'85 W123 300CD, 275 000km (Fatmobile) rebuilt turbodiesel from previous Fatmobile transplanted into 280CE (SOLD)
'99 W202 C250 Turbodiesel (my darling Wife's car - Sold)
'98 W202 C250 Turbodiesel (my car - Sold)
'06 Ssanyong Musso Crew Cab 2WD Ute (OM662 diesel and Auto Transmission)

Jader1973
E Class
Posts: 72
Joined: Wed 25 Jun, 2008 7:19 pm
Model you own: w123
Location: Melbourne, VIC

Re: 280CE EGR Valve Gasket?

Post by Jader1973 » Mon 28 May, 2018 7:55 pm

nea100 wrote:
Mon 28 May, 2018 2:22 pm
I did as Tony suggested and made up a blanking plate and cut a gasket, and used some sealant.

Had to drill and tap out the header as one of the studs had rusted off - cause of problem. Fitted new bolts from a local bolt shop.

All good now and no more ticking noises.

Still don't know what to do with the vacuum line but the car starts and runs just fine.

Image
Thanks! That is a huge help.

Post Reply

Return to “W123”