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#1
11-29-2004, 01:30 AM
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Here's my payback! Diesel Primer Pump Replacement
I've gotten loads of free advice from this and other forums. Now it is my turn to share some guidance. This past May I replaced my original leaking fuel primer pump. It is a simple. painless operation that took about 30 minutes - 15 of which was spend taking the attached pictures.
Note: I will only be able to attach 5 photos per entry. Photos A & B - the location of the existing fuel primer pump (next to the injector pump). Photo C - the updated replacement part - I paid about $30.00 from a dealer simply because I was on travel and did not want to wait to find it cheaper. Photo D - use a hose clamp (I used vise grips) to close off the fuel line after the first stage filter (the clear one). Photo E - using a screwdriver, loosen and remove the fuel hose. Photo F - using either a 17mm or 19mm socket with an extension, remove the fuel line fitting. Photo G - setting the fuel line fitting aside (on top of air filter) Photo H - now you have room to access the old primer pump Photo I - remove old fuel primer pump with a 24mm open end wrench (note pinched off fuel line at bottom of photo. Photo J - the new and the old parts compared. The new part came with an adapter that was not required in my application. Photos K & L - clean up and ensure you have removed the old copper washer. Photo M - install new fuel primer pump with a 17mm or 19mm open end wrench. Photo O - replace the fuel line fitting, tighten, and enjoy the completed project! Next I'll work on posting my project of adding rear headrests. I did this in under an hour with used brackets and leather headrests I got from mercedesdismantlers.com out in L.A. for under $100 - shipped! If done properly it will be no different than if it was factory installed. Stand by . . .
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1990 300TE 4M Pictures 1990 300D 2.5 Turbo Pictures 1985 300SD Pictures 1980 280SL Pictures 1977 350SLC Pictures 1976 450SL Pictures 2001 Saab 9-5 Wagon Pictures 1996 Dodge Grand Caravan Pictures Last edited by pwogaman; 11-29-2004 at 02:25 AM. 
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#4
11-29-2004, 01:38 AM
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Very nice.
So nice; that I am adding it to "Name these parts, to help new members".
 http://www.peachparts.com/shopforum/...405#post700405 Diesel Injection: http://www.peachparts.com/shopforum/...d.php?t=142405 Fast navigation Do It Yourself Links http://www.peachparts.com/shopforum/...d.php?t=146034 Don't want it getting lost or forgotten.
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whunter Moderator & FastLane Support ASE Master Mechanic roy@peachparts.com "Red Green" If the women don't find you handsome, they should at least find you handy. Last edited by whunter; 09-02-2009 at 03:47 PM. Reason: updated links
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#5
11-29-2004, 01:49 AM
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Pwogaman,
Thanks for taking the time to document that. We all should be doing that when we have a parts replacement or repair. Which is pretty much all the time for some of us...
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Jimmy L. '95 E300 177K "Batmobile" Texas Unfriendly Black '85 300TD 228K "The Wagon" Texas Friendly White '81 300TD 238K "Smash" "Available" '80 240D 150K "China"  Scar engine installed------------------------------------------------- Gone: '80 240D 230K "The Squash" Hurtin'..... '81 240D 293K"Scar" Rear ended harder than Elton John
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#6
11-29-2004, 01:55 AM
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No excuse not to with the price of digital cameras dropping like they are. . .
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1990 300TE 4M Pictures 1990 300D 2.5 Turbo Pictures 1985 300SD Pictures 1980 280SL Pictures 1977 350SLC Pictures 1976 450SL Pictures 2001 Saab 9-5 Wagon Pictures 1996 Dodge Grand Caravan Pictures Last edited by pwogaman; 11-29-2004 at 02:24 AM.
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#7
11-29-2004, 12:27 PM
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pwogaman you will love the primer pump as it works far better then the old style. I replaced mine in Feb shortly after buying the car and I had to cut of a wrench so as to get it out and new one in easy. It doesen't take too much pumping to even get the fuel filter filled, don't ask how I know.
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05 E320 CDI Alabaster White. Grandpa's ride. '02 Ford Escort ZXR2 Silver. Grandma's ride. Age and cunning will always over come youth and vigor.
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#8
11-29-2004, 10:20 PM
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Quote:
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1990 300TE 4M Pictures 1990 300D 2.5 Turbo Pictures 1985 300SD Pictures 1980 280SL Pictures 1977 350SLC Pictures 1976 450SL Pictures 2001 Saab 9-5 Wagon Pictures 1996 Dodge Grand Caravan Pictures
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#9
11-29-2004, 11:50 PM
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Quote:
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05 E320 CDI Alabaster White. Grandpa's ride. '02 Ford Escort ZXR2 Silver. Grandma's ride. Age and cunning will always over come youth and vigor.
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#10
02-27-2006, 02:37 AM
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air in system
Do yoiu guys think this may solve a problem with air in the system i have?
my 300d running on veggi has been leaving me stranded 5 or so miles into a trip,i have to get out and hand prime to take off again,but when i hand prime(older style primer) its loose and almost no suction,if this is the case can air be getting in thru there??? huge thanx
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#11
02-27-2006, 03:28 AM
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I think I replied to a post about this to you a couple of days ago....not sure.
Either way I would replace it anyway. Cheap as sin and super easy to do....10 mins maybe. I know there is a post sticky for WVO but I wonder why you are getting dumped that far into your ride. I think if it was a leak there you would be having a hard time starting if at all. What symptoms are you having. Can you give us any more info?
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76 300D 130K "Stella" (Sold  )74 240D 299K (Donated to Highschool For Senior Project WVO) 83 300TDT 290K (My one and only) Sanford, NC
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#12
02-27-2006, 11:20 AM
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Quote:
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'81 300SD -Yellow/ Beige int. - needs new driver's seat. '93 300E w/ 3.2 Black/Black.."DD" '85 300D- (sold.) CANADA '79 300SD Red (below) - (sold.) NC '82 300CD - (sold) under renovations Tampa area '83 300CD - sold CA...The one I wish I had back !!!!!! '87 190E 5 spd- sold CT '04 Black Lab mix - black on black. '06 Flat Coated Retrieiver - sock thief! "..I'll take a simple "C" to "G" and feel brand new about it..." 
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#13
02-27-2006, 12:35 PM
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Yep,
Those pumps are the way to go with WVO. So much priming needed on filter changes and when things go wrong (Rarely if you did your system right). My pump has saved me many a time and I think my stock pump likes to have a freind
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76 300D 130K "Stella" (Sold )74 240D 299K (Donated to Highschool For Senior Project WVO) 83 300TDT 290K (My one and only) Sanford, NC
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#14
02-27-2006, 01:24 PM
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I replaced mine a couple of months ago as well. I think it was a $17 part. I did not have to disconnect the fuel line though.
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Michael LaFleur '85 300SD - 150,000 miles '85 300SD - 317,000 miles (sold) '86 300SDL - >320,000 miles? (running again!) '98 ML320 - 240,000 miles '83 Harley Davidson FLTC (Broken again) :-( '61 Plymouth Valiant - 60k mikes 2004 Papillon (Oliver) 2005 Sh!tzu (Griffon) 2009 Welsh Corgi (Buba) 
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#15
02-27-2006, 01:53 PM
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I still have, and use, my leaky original pump. I'm rugged. (or cheap
 )
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-diesel is not just a fuel, its a way of life-  '82 300SD 289k -mine Mein Auto ist eine Geldgrube....  (OC-293,855)'90 300E - 145k - wife's (OC- 148,823) '82 300SD 321k -dad's (OC- 325,422) '83 300D 235k - brother's (OC-11/14/10) '83 300SD 307k -dad's (OC-310,300) '93 190E 2.3 - 198k - sister's - (OC- 5/31/10) '82 300SD - 300k+? - thrown rod - Parts car!
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