Re: W124, 300D, 602.962

Just this weekend I noticed a slow motor oil leak from the bottom of my IP. I have isolated it to the bottom
plate, which attaches with 4 or 6 small bolts. EPC shows that there is a seal of some kind (flat or o-ring)
that probably is the problem in my case.

I haven't located a source for this part yet, which is "#A0049971340 - Seal Ring, Lower".

It is # 370 shown below.

Simplest fix would be to see if the fasteners are a little loose and try to snug them up a bit. If that does not
work I will need to remove the plate and install a new seal.

No parts are retained by the plate that I need to watch for I hope?

Are the bolts Torx head?

Has anyone encountered this problem yet and where can I get the part?

Thanks.

__________________
1993 W124 300D 2.5L Turbo, OM602.962
2000 Chevrolet Cavalier, 2.4L DOHC
2002 Ford Explorer, 4.0L SOHC
2005 Toyota Prius, 1.5L

http://www.fuelly.com/sig-us/40601.png

The bolts are torx head and really difficult to get at,unfortunatly it is a common leak on these old cars on my wagon(603 eng) i had to take the pump off to do the job.The one on my sedan(602 eng) is leaking a little and so is the one on my sons sedan.No parts will fall out but a surprising amount of oil will! The seal was hard and brittle and there is no groove to fit it into it just fits around a raised part of the cover and i think if you do manage to get the cover off without removing the pump you will have to glue the seal to the cover to get it to stay in place while you reassemble. Don

__________________
Red Green "This is only temporary,Unless it works!"

97 E300D 157000 miles
87 300TD ?141k? miles

Thanks for the info Don. Where did you get the new seal? My online sources don't seem to have it...I may have to call my local MB dealer and check with them.

__________________
1993 W124 300D 2.5L Turbo, OM602.962
2000 Chevrolet Cavalier, 2.4L DOHC
2002 Ford Explorer, 4.0L SOHC
2005 Toyota Prius, 1.5L

http://www.fuelly.com/sig-us/40601.png

If all else fails and you can't get a replacement seal would Permatex black do the job?

http://www.permatex.com/products/automotive/automotive_gasketing/gasket_makers/auto_permatex_ultra_black_maximum_oil_resistance_rtv_silicone_gasket_maker.htm

Who knows it may last forever - it may last for 5 mins???

__________________
1992 W201 190E 1.8 171,000 km - Daily driver
1981 W123 300D ~ 100,000 miles / 160,000 km - project car stripped to the bone
1965 Land Rover Series 2a Station Wagon CIS recovery therapy!
1961 Volvo PV544 Bare metal rat rod-ish thing

I'm here to chat about cars and to help others - I'm not here "to always be right" like an internet warrior



Don't leave that there - I'll take it to bits!

I ordred the Bosch gasket kit from the local Bosch shop, if i remember it was around 30 bucks and pretty much a waste of money.Even if you have to take the pump off you only need the oring for the front of the pump and the one for the cover,the one for the cover is just an oring and not shaped like it shows in the picture you posted which is why you would have to glue it in place.If i remember correctly the side cover gasket was not included so i made one.If you dont have a local MB dealer Peach Parts would be your best bet i guess. Don

__________________
Red Green "This is only temporary,Unless it works!"

97 E300D 157000 miles
87 300TD ?141k? miles

I'm having the same problem oil on the side, at bootom and at rear where I believed is the selenoid. I defenelly need to remove the IP but, what do I'm looking for to prevent a catastrophe by messing with the timming. I have a 92 300SD w140 and as soon as get all inf I need I will start the process and post it as I,m working on it. The good thing we have this wonderfull site for advise and parts. please let me know how did it work out for you

We have the seal.


Fastlane: SEAL RING, INJECTION PUMP BOTTOM PLATE
http://catalog.peachparts.com/item.wws?sku=0049971340





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__________________
ASE Master Mechanic
https://whunter.carrd.co/

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
2003 Volvo V70

https://www.boldegoist.com/

Hunter I have a 92 300SD can you provide me with the gaskets "O" ring engine, bootom "O" ring, side gasket, and rear selenoid "O" and some tips of the trade and what not to do and if I need any special tools. Thank you Hunter

300SDL Inj Pump Bottom Seal Leaking

__________________
Not MBZ nor A/C trained professional but a die-hard DIY and green engineer. Use the info at your own peril. Picked up 2 Infractions because of disagreements. NOW reversed.

W124 Keyless remote, PM for details. http://www.peachparts.com/shopforum/mercedes-used-parts-sale-wanted/334620-fs-w124-chasis-keyless-remote-%2450-shipped.html

1 X 2006 CDI
1 x 87 300SDL
1 x 87 300D
1 x 87 300TDT wagon
1 x 83 300D
1 x 84 190D ( 5 sp ) - All R134 converted + keyless entry.

This is excellent thread and will make thing a lot easier. Thank you Ah-kay

That is a good thread, I agree. The 602's IP only has 4 bolts to remove. I'm pretty sure I can get to them from underneath the car and using a bunch of extensions.

Thanks to Gsxr's website W124performance.com for the picture.

__________________
1993 W124 300D 2.5L Turbo, OM602.962
2000 Chevrolet Cavalier, 2.4L DOHC
2002 Ford Explorer, 4.0L SOHC
2005 Toyota Prius, 1.5L

http://www.fuelly.com/sig-us/40601.png

Seal ring
#11.
Fastlane:
http://catalog.peachparts.com/item.wws?sku=0179974148

Seal ring
#17.
Fastlane:
http://catalog.peachparts.com/item.wws?sku=0049974540

Seal ring
#122.
Fastlane:
http://catalog.peachparts.com/item.wws?sku=0049974640

Gasket
#125. only comes with the aluminum cover
Fastlane:
http://catalog.peachparts.com/item.wws?sku=0010743780

Seal ring
#149.
Fastlane:
http://catalog.peachparts.com/item.wws?sku=0109975648

Seal ring
#207.
Fastlane:
http://catalog.peachparts.com/item.wws?sku=0139978148

Gasket
#228.
Fastlane:
http://catalog.peachparts.com/item.wws?sku=0010744380




.

__________________
ASE Master Mechanic
https://whunter.carrd.co/

Prototype R&D/testing:
Thermal & Aerodynamic System Engineering (TASE) Senior vehicle instrumentation technician.
Noise Vibration and Harshness (NVH).
Dynamometer.
Heat exchanger durability.
HV-A/C Climate Control.
Vehicle build.
Fleet Durability
Technical Quality Auditor.
Automotive Technical Writer

1985 300SD
1983 300D
2003 Volvo V70

https://www.boldegoist.com/

Thank Whunter I will work on it as soon asap

thanks for this post. Just noticed my bottom plate is leaking. what a mess.

__________________
1990 300D 2.5
1991 F350 7.3 Dually IDI

1997 F350 gasser dump
1980 H-D 93 inch Shovel
2000 SE Roadglide

Hunter, I also need the part #'s for the IP. Going by the drawing at the start of the thread, they would be 370,382,and 424. Also, is the delivery valve o-ring the same size as the shut off valve o-ring ? If not, I need that also. I really appreciate it. Thanks.

__________________
1990 300D 2.5
1991 F350 7.3 Dually IDI

1997 F350 gasser dump
1980 H-D 93 inch Shovel
2000 SE Roadglide