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#1
10-30-2012, 06:35 PM
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Have you mounted in a vacuum/boost gauge?
I would like to put one in my car. Where would be a good spot?
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85 Merc 300D - Unwinding 31 years of wear 86 VW TD Mahindra Diesel Iseki Diesel In 2007 I didn't own a diesel. 
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#2
10-30-2012, 07:12 PM
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Quote:
I don't know about a good place for the Gauge itself.
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84 300D, 82 Volvo 244Gl Diesel
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#3
10-30-2012, 07:20 PM
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Is that the round device near the back of the injection pump, that has a covered adjuster on it and a vacuum line coming out of a banjo?
Now to find an enclosure for the gauge and develop a location for it.
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85 Merc 300D - Unwinding 31 years of wear 86 VW TD Mahindra Diesel Iseki Diesel In 2007 I didn't own a diesel.
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#4
10-30-2012, 07:20 PM
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See my thread "http://www.peachparts.com/shopforum/diesel-discussion/255906-ashtray-gauges-w124.html." Although this is about the 124, it refers to the 123 in which I had the same gauges, including turbo boost.
Jeremy
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 "Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970
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#5
10-30-2012, 07:26 PM
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re Jeremy
Just saw your installation very nice,,, D'oh now I've got a new project. !!!!
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#6
10-30-2012, 07:50 PM
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Yes agreed a nice installation. What kind of wood/finish is used in the dashboard.
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85 Merc 300D - Unwinding 31 years of wear 86 VW TD Mahindra Diesel Iseki Diesel In 2007 I didn't own a diesel.
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#7
10-30-2012, 08:16 PM
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That is Zebrano, the same wood Mercedes used.
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"Buster" in the '95 Our all-Diesel family 1996 E300D (W210) . .338,000 miles Wife's car 2005 E320 CDI . . 113,000 miles My car Santa Rosa population 176,762 (2022) Total. . . . . . . . . . . . 627,762 "Oh lord won't you buy me a Mercedes Benz." -- Janis Joplin, October 1, 1970
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#8
10-30-2012, 09:37 PM
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Quote:
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84 300D, 82 Volvo 244Gl Diesel
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#9
10-30-2012, 09:55 PM
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I bought a boost gauge about 7 years ago. Still on shelf. Car runs well so no drive to get it installed. Especially since there is no good place for the gauge.
I did the ashtray thing on my SL. But that was mainly for the AFR gauge which is useful.  
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Graham 85 300D  ,72 350SL, 98 E320, Outback 2.5
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#10
10-30-2012, 10:04 PM
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I considered doing the ashtray setup (very nice work Jeremy) but I had just swapped in the 92 ash tray from the 190e and its got a much nicer action than the 87 plus its handy for storing quarters. Instead I drilled a 1.5" hole in the switch panel where it had 2 blank spots and installed a 15psi fuel pressure gauge ($8 ebay) to act as a boost gauge. Works beautifully. The only down side is that it tends to vibrate and make a buzzing sound. The solution was to add a cheap fuel filter in line with the hose which dampens the vibrations for the most part. I still get a slight buzz from the gauge at 12psi which is handy at night since the gauge is not lit.
http://i.imgur.com/aqZkg.jpg
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CENSORED due to not family friendly words 
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#11
10-30-2012, 10:37 PM
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I had done some research and noticed that there were some inexpensive pressure gauges and thought why not.
I like the mounting location of yours, more in the line of sight. Quote:
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85 Merc 300D - Unwinding 31 years of wear 86 VW TD Mahindra Diesel Iseki Diesel In 2007 I didn't own a diesel.
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#12
10-30-2012, 11:31 PM
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Pros put their gauges in place of the center vents
 Boost on the left, Exhaust pressure on the right
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$60 OM617 Blank Exhaust Flanges $110 OM606 Blank Exhaust Flanges No merc at the moment
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#13
10-30-2012, 11:45 PM
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I have a voltmeter and a boost gauge in my 300SD where the ash tray was. From left to right its voltmeter, 12V outlet, Boost
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-diesel is not just a fuel, its a way of life-  '15 GLK250 Bluetec 118k - mine - (OC-123,800) '17 Metris(VITO!) - 37k - wifes (OC-41k) '09 Sprinter 3500 Winnebago View - 62k (OC - 67k) '13 ML350 Bluetec - 95k - dad's (OC-98k) '01 SL500 - 103k(km) - dad's (OC-110,000km) '16 E400 4matic Sedan - 148k - Brothers (OC-155k)
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#14
10-30-2012, 11:55 PM
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Graham
How do you use your AFR gauge. Keep it lean for economy? Quote:
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85 Merc 300D - Unwinding 31 years of wear 86 VW TD Mahindra Diesel Iseki Diesel In 2007 I didn't own a diesel.
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#15
10-31-2012, 09:57 AM
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Quote:
I set it more for performance than economy, but with the gauge it is easy to try different settings for both idle and load mixture (different controls) Those engines sometimes have a hot start problem. The gauge shows that up clearly - mixture goes way lean after car has been sitting hot for a short while. Enriching idle mixture helps overcome that. Sorry - probably more than you wanted to know
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Graham 85 300D ,72 350SL, 98 E320, Outback 2.5
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