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  #31  
Old 12-21-2006, 07:55 PM
bullwinkle's Avatar
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Join Date: Jun 2004
Location: cincinnati
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Quote:
Originally Posted by vstech View Post
ditto GM with their infamous 5.7L motors VP was driven off the cam, the pump looks like an HEI distributer without all the wires....
John
Don't forget the 6.2/6.5s, they're ran the same way-the early ones like mine just had a diaphragm sticking up for generating vacuum, then they went to a belt driven one on the later ones and used the "distributor" for an engine speed sender.

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  #32  
Old 12-21-2006, 07:59 PM
bullwinkle's Avatar
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Uh-oh, thread hijack alert!!!! BY ME!!!! They have vacuum pumps so they can power all those things that leak and drive the owner nuts! Like door locks, climate controls, vent pods, anything else on a Mercedes!
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1982 300DT 190K (Diesel Purge + synthetic oil=smoothness at last!!!)
2004 Ford E-350 6.0 L PSD 227K
2006 Dodge Ram 3500 SRW HO Cummins 4X4 48RE 42K (brute force tow vehicle)
2005 Scion xB wife's rolling pop can
1993 GMC Sierra C3500 6.2 142K
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  #33  
Old 12-21-2006, 09:39 PM
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Join Date: Nov 2002
Location: Wakefield, RI
Posts: 2,145
Double Hijack! My '93 6.5TD Chevy has no vacuum pump! Stick shift, servomotors for the accessories. Last year without computers, all mechanical. I love it. RT
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  #34  
Old 12-21-2006, 09:48 PM
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Quote:
Originally Posted by ForcedInduction View Post
He was talking about his 80 (W123) 240D. On the preW123 bodies, it's there because the injection pump is pneumatically governed instead of mechanically like our 617's.

200D, 220D, and early 240D tuning guide.
Thanks for the clarification, I'm not yet well versed with the 240D's (114 or 123)
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  #35  
Old 12-22-2006, 01:14 AM
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Join Date: May 2006
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Quote:
Originally Posted by chasinthesun View Post
I own an 84 190d ,the 4 cylinder runs great but the vacuum pump has long gone.When test driving it last week I kind of found this out by emergency needs,the guy selling it failed to let me know.Ive gotten use to breaking hard and can live with that for the mean time its the turning the car off that im trying to remedy .The line from the key to the IP has been guided via anothe rhose up to my console and when I need to shut it down i pull vacuum with my mity vac .Vacuum dosnt seem to happen except in very small amounts,the intake is were you can get it from a gasser.I was considering teeing into the line right before the windshield wiper reservior,that has to create vacuum ,how much is the question.The car performs well just looking for a cheaper fix for now.
I would be extremely hesitant to continue running that engine if the vac pump is/has died, they are driven by the timing chain and are notorious causes of sudden timing chain breakage failures, from the pumps coming apart when they fail, causing severe engine damage.

Forcedinduction, Not to worry my friend, that 616 engine with the plate had #1 rod sticking out the side when I got the car, so all that stuff is out now anyway. The 617 is happy in its new home.
_chris 80 240 w/617 engine

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