Hello All,
With your help I was able to figure that my vacuum pump is weak and needs a rebuild. I am waiting for the rebuild kit so I have been searching for the way to remove the vacuum pump. I remember stumbling upon a thread that showed how to but I cannot find it now. So, can anyone help me with some instructions on how to take the vacuum pump out or does anyone know a diy article or thread that I havent found in my searching so far?

Thanks

DK

__________________
1983 300sd 253,000 + 13,000 (10,000+ on veggie and biodiesel)= 266,000
1983 300sd 390,000 (Leaky windshield seal) Known to me as the shower car. Parts car now!
1 junk 300sd Watch out for the skunk that lives underneith it!

Pretty easy. Remove the power steering belt, disconnect the vacuum line, unbolt the vacuum pump.

Clearly visible in this picture.

Attached Thumbnails

 

So there is enough room in there to remove the pump without messing around with the radiator?

Thanks
DK

__________________
1983 300sd 253,000 + 13,000 (10,000+ on veggie and biodiesel)= 266,000
1983 300sd 390,000 (Leaky windshield seal) Known to me as the shower car. Parts car now!
1 junk 300sd Watch out for the skunk that lives underneith it!

The only time I have done this was on a parts car with no radiator, but I recommend when you have it out, look at the crank sensor. These are a PITA to get at & get lots of crud buildup. Mine has a allen screw held collar retainer.

Follow these instructions:
http://diymbrepair.com/easley/Rebuild_vac_pump.htm

Make sure you build the board, you'll be glad you did.
Make sure you buy a gasket, not included in repair kit.

Do not remove the radiator or any belts. Not necessary.

danny

__________________
1984 300SD Turbo Diesel 150,000 miles

OBK member #23

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(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination

I may be joining you in this repair. I drove my wife's 77 300d this morning and noticed it was low on vacuum. Where did you purchase the rebuild kit?

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13

Wow, thanks for the link. It is awsome. I ordered my rebuild kit from http://www.***************/search/product.aspx?sid=i524fwvrjzkkcz45wsy0ld45&makeid=800016@Mercedes&modelid=1194027@300SD&year=1983&cid=18@Electrical%20%26%20Vacuum&gid=5025@Vacuum%20Pump%20Repair%20Kit
That is the cheapest place I could find with the help of some members of this forum. Darn, I did forget to order the other seal. Looks like I will be ordering again.

DK

__________________
1983 300sd 253,000 + 13,000 (10,000+ on veggie and biodiesel)= 266,000
1983 300sd 390,000 (Leaky windshield seal) Known to me as the shower car. Parts car now!
1 junk 300sd Watch out for the skunk that lives underneith it!

My 2 cents.

Vacuum pump gasket. Removing the pump. You don't know where the cam is so you may have pressure on the unit while unbolting it. This may lead to a stripped bolt Allen insert section, due to the pressure on it. I did this. My recommendations, remove all bolts, but two bolts that are opposite to each other. Then hold pressure on the front of the vacuum pump while pushing the pump against the block. Unscrew the two remaining bolts and then release the pump. Also make sure the Allen bolt heads are very clean.
Clean the surfaces and I used High Tack to install the gasket and then bolt in the vacuum pump.



Dave

__________________
1970 220D, owned 1980-1990
1980 240D, owned 1990-1992
1982 300TD, owned 1992-1993
1986 300SDL, owned 1993-2004
1999 E300, owned 1999-2003
1982 300TD, 213,880mi, owned since Nov 18, 1991- Aug 4, 2010 SOLD
1988 560SL, 100,000mi, owned since 1995
1965 Mustang Fastback Mileage Unknown(My sons)
1983 240D, 176,000mi (My daughers) owned since 2004
2007 Honda Accord EX-L I4 auto, the new daily driver
1985 300D 264,000mi Son's new daily driver.(sold)
2008 Hyundai Tiberon. Daughters new car

Are you serious???

LOOK UP there's a BUY PARTS link.

__________________
1984 300SD Turbo Diesel 150,000 miles

OBK member #23

(\__/)
(='.'=) This is Bunny. Copy and paste bunny into your
(")_(") signature to help him gain world domination

I know that. In a previous thread by the original poster(I think), there was a discussion of the significant difference in price between the one at the link above and another parts source. Someone suggested contacting Phil to discuss the price difference. I was curious as to whether this suggestion was ever followed and what the outcome was.

__________________
1977 300d 70k--sold 08
1985 300TD 185k+
1984 307d 126k--sold 8/03
1985 409d 65k--sold 06
1984 300SD 315k--daughter's car
1979 300SD 122k--sold 2/11
1999 Fuso FG Expedition Camper
1993 GMC Sierra 6.5 TD 4x4
1982 Bluebird Wanderlodge CAT 3208--Sold 2/13