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#1
05-02-2011, 08:57 AM
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W114 Vacuum Signal
73 280, M110 motor. Runs smooths as butter, even compression on all holes.
Hooked up a vacuum gauge and it is reading 18 lbs with the needle vibrating rapidly +/- 0.3ish pounds. It looks like scenario 3 in this animation, but at 18 pounds: http://www.secondchancegarage.com/public/186.cfm (scroll about 3/4 of the way down). Is that normal on this car? 
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#2
05-02-2011, 12:27 PM
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Yes--'73 M110's in the US have more aggressive cams than later engines--in my experience all carbureted M110 engines have vacuum readings 1-3mm hg lower than one might otherwise expect--although timing advance variations will affect readings as well.
Tim Kraakevik kraakevik@voyager.net Four M110's
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#3
05-03-2011, 09:25 AM
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that is a good number , be happy not sad
__________________
Ron 2015 Porsche Cayman - Elizabeth 2011 Porsche Cayman - Bond,James Bond Sadly MERCEDESLESS - ALways LOOKING ! 99 E320 THE Queen Mary - SOLD 62 220b - Dolly - Finally my Finny! Sadly SOLD 72 450SL, Pearl-SOLD  16 F350 6.7 Diesel -THOR 19 BMW X5 - Heaven on Wheels 14 38HP John Deere 3038E Tractor -Mean Green 84 300SD, Benjamin -SOLD 71 220 - W115-Libby ( my first love) -SOLD 73 280 - W114 "Organspende" Rest in Peace 81 380 SL - Rest in Peace
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