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#31
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If you're really concerned, just replace it with a new one after about 200k miles. The vacuum pump is just one of many components that can fail and damage your engine, no need to re-engineer it.
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#32
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The balls are in the roller that contacts the cam. The balls would be outside the screen.
Sixto 87 300D |
#33
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Quote:
__________________
85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#34
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When mine blew up, it was parts of the broken leaver from inside the pump that ended up in the timing chain.
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#35
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If there was a screen there, would it have kept the broken lever bits from falling into the timing chain?
__________________
85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#36
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Does not have to be continuous duty if you have a vacuum reservoir sized for the job.
__________________
85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#37
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Quote:
Overall, my cars only cost me about $0.30 per mile over the long term. Don't obsess about one component, just drive the car and keep up with basic maintenance. This is a solution in search of a problem. |
#38
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Maybe, or the screen could be another piece of shrapnel. That's a heck of a spring waiting to blow parts all over the place.
Sixto 87 300D |
#39
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Bushing on the Injection Timer
Bushing (No roller Bearings???) on the Injection "Timer" Shaft wear.
(It's actually more closely related to a Governor that controls/advances Timing of the I.P.) Timer shaft "wobbles" Radially and it's only a matter of time before the V.P. self destructs. I suspect many of the OM 6XX.XXX engine V.P. failures are the result of this. You used to be able to buy parts for the Timers...No Longer in U.S. So, you're looking at Three failure possibilities: 1.Bearing failure on the V.P. roller 2.Bushing failure on the Timer Shaft. 3.Worn "Ramps" on the Timer that actually "Push" the V.P. 's roller as they rotate.(With "Ramp" wear ,just replacing the V.P. only ruins a new V.P.) F'ing Pierburg swears there's no DESIGN defect with the system... There may not have been on the older V.P. s used on the older ('75 -84') engines, BUT the Quality of Even Brand New Pumps from Mercedes is for Excrement. A vital component that has the imminent capability to "Catastrophe" an engine SHOULD HAVE NO PARTS MADE OF "POT METAL" !!!!!! Most of All you need to scare yourself awake @ night is here: OM603: Vacuum pump explosion, bearing intact! Injection Pump Timing device wrecked
__________________
'84 300SD sold 124.128 |
#40
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Who knows, maybe the screen would have ended up in the timing chain instead. If it really worries you, buy a new pump every 100k miles.
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#41
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Quote:
Sixto 87 300D |
#42
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Quote:
__________________
85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#43
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I understand somewhere along the 606 evolution chain MB shifted to a rotary vane pump. I don't know if a 617 or 603 can be upgraded to a rotary pump. A 603 has a better shot since the 606 basically uses a 603 block.
Sixto 87 300D |
#44
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Quote:
__________________
85 300D turbo pristine w 157k when purchased 161K now 83 300 D turbo 297K runs great. SOLD! 83 240D 4 spd manual- parted out then junked |
#45
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Possibly but a big advantage of Diesels is they keep going after the battery and alternator give up. With an electric pump they'll really keep going
Sixto 87 300D |
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