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#1
01-14-2013, 03:01 PM
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Thrust Augmentation
I have a gray market, sold in Germany, 1978 350SL with K-jetronic CIS fuel injection. At the back of the motor behind the fuel distributor there is a valve with air lines (not vacuum) attached. The EPC calls it a thrust augmentation valve. Does anyone know what it does and how it does it? I am replacing damaged hoses and would like to test it when done!
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____________________ 1984 300CD (sold) 1973 220DPK 4 spd (died) 1978 350SL 4 spd gray market 2003 SLK32 AMG 1988 300CE (sold) 1997 E420 (Totaled) 1998 E320 Wagon 
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#2
01-15-2013, 02:34 PM
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can you post a picture?
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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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#3
01-15-2013, 03:25 PM
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Normally "thrust augmentation" comes in the form of afterburners or JATO bottles. I've never seen anything like that on a Mercedes
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Current Stable
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#5
01-16-2013, 03:38 PM
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Here are the parts from the EPC. The name must be having translation problems!
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____________________ 1984 300CD (sold) 1973 220DPK 4 spd (died) 1978 350SL 4 spd gray market 2003 SLK32 AMG 1988 300CE (sold) 1997 E420 (Totaled) 1998 E320 Wagon
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#6
01-16-2013, 08:14 PM
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EPC. Search that part number. As I stated on BW it is also called circulating air booster valve on other models with the same PN. I thought I posted the thread there where Nobby was searching for the same valve (different PN) for his '83 280SL. Can't remember if he posted how he tested his but the diaphragm was bad in his. Forgot to look for my M110 engine manual. Sorry.
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#7
01-26-2013, 12:32 AM
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On the M110 they call it a "decel valve".
This valve opens up under rapid deceleration and dumps a little extra air into the bottom of the intake preventing stalls. You can test it with a hand held vacuum pump and your mouth.
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http://www.benzypalooza.com/index.htm
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