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#1
12-18-2023, 03:43 PM
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1982 300TD Vacuum Pump Install Question
Well, the time has come for me to replace my tired old vacuum pump. I've got a working spare pump in my parts car! My question is simple. Do I need to use any sort of gasket sealant when I install the new pump? I would assume so, but I know that some gaskets don't require any sealant, so I figured I would ask. Ooh, one other question. What's the torque spec for the vacuum pump mounting bolts? Thanks!
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#2
12-19-2023, 03:00 PM
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there are some very good vacuum pump rebuilders on ebay (only place I know to find these people....). I'm getting ready to install a new vacuum pump on my car; I will send the old one to a rebuilder to have it rebuilt or remanufactured.
Believe me, you want to have at least one good working condition vacuum pump sitting on the shelf for a rainy day. I would also recommend you purchase kent's how-to-do-it vacuum pump rebuild video for $7.95. You might believe your pump is in good working condition when it may not be. It could be worth the eight dollars just to be sure. https://www.youtube.com/watch?v=uSmDB_R9O-Q
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#3
12-19-2023, 03:09 PM
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the problem is mercedes benz no longer offers the rebuild kits for these vacuum pumps. thanks a lot mercedes!!
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#4
12-19-2023, 07:13 PM
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Torque spec? IDK, but just an even reasonable tightening should be fine.
Sealant needed? Not absolutely needed, I'd clean it really well and use a gasket cement (not silicone) e.g. Permatex Aviation Form-a-gasket or a like product very sparingly.
__________________
"Rudeness is a weak man's imitation of strength" - Eric Hoffer
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#5
12-20-2023, 11:39 AM
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IIRC the bolts are tiny.
No more than 60 INCH pounds...
__________________
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 560SL convertible 1987 190D 2.5-5SPEED!!!  1987 300TD 2005 Dodge Sprinter 2500 158"WB 1994GMC 2500 6.5Turbo truck... I had to put the ladder somewhere!
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#6
12-20-2023, 07:04 PM
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Quote:
Check the in and out play of your timer shaft. Too much paly can ruin a new vacuum pump and when that happens a chance of engine damage. See the attached picture in post 3. Redesigned vacuum pump for the 617?
__________________
84 300D, 82 Volvo 244Gl Diesel
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