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#1
03-19-2011, 09:38 PM
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Injection Pump Mounting Bolts OM617.910
I need to advance the injection pump timing on the 76 300D as its off by some degrees.
But I ran into a problem, I CANNOT seem get at the 13mm mounting bolt at the bottom of the pump. The oil filter housing gets in the way.. If anyone has ever done this before please post the combination of tools you used to get at that nut. Thank you! Stewart
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg 
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#2
03-19-2011, 09:57 PM
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Pictures ?
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1980 240d , chain elongation, cam marks reference: http://www.peachparts.com/shopforum/diesel-discussion/10414-help-i-need-check-stretch.html http://www.peachparts.com/shopforum/diesel-discussion/305365-9-degrees-chain-stretch.html evap fin cleaning: http://www.peachparts.com/shopforum/diesel-discussion/156207-photo-step-step-post-showing-w123-evaporator-removal-1983-240d-1982-300td.html?highlight=evaporator A/C thread http://www.peachparts.com/shopforum/diesel-discussion/297462-c-recommendations-mb-vehicles.html
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#3
03-19-2011, 10:25 PM
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Pictures of what, the injection pump, there is nothing different about my injection pump.
Its just that on W115's there is limited space, the oil filter housing is mounted from under the car. Its not like a 617.912 and later... Any W115 owners adjusted their timing before?
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
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#4
03-19-2011, 11:50 PM
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Even though I have a manual for your Engine it is not very specific. They do show part of a pic of a "self made" 13mm wrench. Picture the Box end of a combination wrench with the Box end pointing at 12:00.
It showes the wrench bent Counter Clockwise about 1/4" back from the Box end at a 45 degree angle. (The other issue is that that Bolt you are speaking of has a Nut on the other end so you need to double wrench it.) This is also the same "self made" wrench they show for my later 617.952. Keeping in mind that I do not have the same Engine; when I did mine I got under the Car and located the 2 Bolts that attatch that rear Bracket to the Block. I removed those 2 Bolts. When I advanced the Fuel Injection Pump that Bracket moved away from the Block. When I was done timing and the Front of the Fuel Injection Pump was tightend down I took a long punch and tapped the Bracket back against the Block and installed the 2 Bolts.
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84 300D, 82 Volvo 244Gl Diesel
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#6
03-20-2011, 11:20 AM
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diesel911, thank you i might have to bend a wrench if the procedure that neubob posted does not work.
neubob, thank you! I never really thought of doing it that way, i think it might work out okay. I already have all those tools.
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
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#7
03-20-2011, 01:46 PM
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X2 on modifying a spanner to tackle the inaccessibility of the 13mm nut at the back of the IP - I've come across it in one of the many FSM versions I've been flicking through - If I remember which one I'll post back here!
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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!
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#9
03-20-2011, 06:32 PM
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I haven't had a chance to bend a wrench yet like the manual suggests. Pierre told me to bend it 90 degrees.
I tried getting at it through the wheel well and i just cant get to it, the OM617 must have less room than a OM616. Congrats Kevin, i was looking at your picstures in your thread! Good work!
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1985 300TD Turbo Euro-wagon 1979 280CE 225,200 miles 1985 300D Turbo 264,000 miles 1976 240D 190,000 miles 1979 300TD 220,000 GONE but not forgotten 1976 300D 195,300 miles 1983 300D Turbo 175,000 miles http://i42.photobucket.com/albums/e3...e485-1-2-1.jpg
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#10
03-20-2011, 09:59 PM
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On 617 all that is needed is an extra long 13mm and some blind work coming in from the top.
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http://superturbodiesel.com/images/sig.04.10.jpg 1995 E420 Schwarz 1995 E300 Weiss #1987 300D Sturmmachine #1991 300D Nearly Perfect #1994 E320 Cabriolet #1995 E320 Touring #1985 300D Sedan OBK #42
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#11
03-20-2011, 10:04 PM
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Quote:
When I did a search the pic is what I came up with; the 90 degree one. And they said it was for getting at the bottom bolt. Our forum sponsor sells Baum special tools and the number for the Baum injection pump wrench is H4561. It might be normal automotive type obstruction wrenches would work. They are sort of U-shaped or S shaped; far right pic.
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84 300D, 82 Volvo 244Gl Diesel Last edited by Diesel911; 03-20-2011 at 10:18 PM.
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#12
03-20-2011, 11:13 PM
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Quote:
I did this job years ago on my W115 300D. It is a PITA, but doable. I used a wrench as shown in the post above, the sorta "s" shaped type, and did it "blind" from above. I had tried all sorts of wrenches with no luck until I found that one. Be patient, take your time... It is that one nut in particular that is the hardest to get... But you can do it. As I recall, Mercedes also recommended that you buy a specially designed tool to measure the 'drip rate' of the injection pump... Priced at about 75 bucks, at the time. You can make it yourself if you have spare injection line... I just came across the one I made about 12 years ago when I did this job. I believe there is a 'how-to' for it somewhere on the Internet.
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 [SIGPIC]Tom SE Connecticut 1975 W115 300D visit my blog: http://mercedesdieselrebuildingdiederich.blogspot.com/
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#13
03-21-2011, 01:07 AM
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Quote:
If someone does not want to make one it is a common item sold on eBay.
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84 300D, 82 Volvo 244Gl Diesel
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#14
03-21-2011, 01:57 PM
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injection pump mounting bolts
i have never used a bent wrench. used the 1/4" 13mm universal w/ extension. if i remember took off front tire and squatted in wheel well area and was able to get in maybe around sub frame mount area. also would either adapt up to 3/8" to break free or had to add some kind of cheater bar to 1/4" to initial break free.i bought the 1/4" 13mm universal just for this job. my kids have subsequently lost it and i have not replaced because i have not had to do this type of job in a while. reguardless good luck!
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#15
03-30-2011, 11:07 PM
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Quote:
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[SIGPIC]Tom SE Connecticut 1975 W115 300D visit my blog: http://mercedesdieselrebuildingdiederich.blogspot.com/
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