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#16
03-10-2010, 12:49 AM
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The 1979 has the simple diaphram pump. I believe you can almost always rebuild it. Sounds like the garage is charging you for a new one instead.
Funny the vacuum pump is bad when your other vacuum functions were working well. 
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#17
03-10-2010, 08:57 AM
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2.5 hours to change a VP???
um, 8 screws... one line fitting, one hose fitting... um, 1/2 hour? tops. I can mail you 2 78/79 vp's for less than 550.00...
__________________
John HAUL AWAY, OR CRUSHED CARS!!! HELP ME keep the cars out of the crusher! A/C Thread "as I ride with my a/c on... I have fond memories of sweaty oily saturdays and spewing R12 into the air. THANKS for all you do! My drivers: 1987 190D 2.5Turbo 1987 190D 2.5Turbo 1987 190D 2.5-5SPEED!!!  1987 300TD 1987 300TD 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#18
03-10-2010, 09:35 AM
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I rebuilt a diaphragm vacuum pump in less than 2 hours in the dead of winter and that included removing it from the engine and reinstalling. And given your symptoms it sounds like an intermittent failure in a check valve on the pump and not the whole pump itself.
__________________
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
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#19
03-10-2010, 10:18 AM
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Answer
Quote:
Fast navigation Do It Yourself Links Fast navigation Do It Yourself Links ************************* Vacuum Pump Rebuild Thread http://www.peachparts.com/shopforum/diesel-discussion/229331-vacuum-pump-rebuild-thread.html#post1927867 "Hen's tooth" 1985 300D vacuum filter dark black http://www.peachparts.com/shopforum/diesel-discussion/163455-hens-tooth-1985-300d-vacuum-filter-dark-black.html#post1265296 Have a great day.
__________________
ASE Master Mechanic asemastermechanic@juno.com 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 1984 190D 2003 Volvo V70 2002 Honda Civic https://www.boldegoist.com/
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#20
03-17-2010, 05:44 PM
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In the end, the vacuum pump went and sent oil into the brake booster. It was quite a mess. It also triggered a larger drain on the check book as my wife got the 2002 C320 wagon she wanted (and it now very happy) and I'll be driving this mint '79 300D. I have to admit, it is pretty fun to drive.
Looks like I'm selling my "truck"...aka my '85 wagon. -Harv
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