79transam
Active Forum Member
Posts: 325
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« on: March 03, 2012, 11:10:00 PM » |
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Does anybody have pic of what the EGR valve looks like on the 78 W72? I'm trying to determine if mine has been removed or blocked off
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1979 Trans AM Ws6/W72
1998 Trans Am Ws6/A4
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TA78
Active Forum Member
Posts: 362
Agawam,Mass.
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« Reply #1 on: March 04, 2012, 12:20:31 AM » |
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79transam
Active Forum Member
Posts: 325
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« Reply #2 on: March 04, 2012, 02:48:47 AM » |
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Warning dumb question ahead............. Is the EGR the bronze colored vertical plate in the pic?
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1979 Trans AM Ws6/W72
1998 Trans Am Ws6/A4
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Motleyfan
Active Forum Member
Posts: 530
Columbia City, IN
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« Reply #3 on: March 04, 2012, 08:13:16 AM » |
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Warning dumb question ahead............. Is the EGR the bronze colored vertical plate in the pic?
Yes.... the horizontal golden colored disc with the bracket coming off of it is the egr backpressure transducer. Nick |
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Hang on to your ass Fred.....
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Father&Son7379T/A
Oracle Forum Member
Posts: 3066
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« Reply #4 on: March 05, 2012, 06:56:49 PM » |
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Dats a mighty fine W72 ya got der fella........... |
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1973 T/A Buccaneer Red L-75 #'s match
1979 T/A W-72 WS-6 4wl disc Atlantis Blue 21k mi. #'s match survivor
1999 T/A Navy Blue A4 40k mi.
1968 442 gone but not forgotten
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1CoolZ71
Forum Member
Posts: 7
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« Reply #5 on: May 03, 2012, 12:40:15 PM » |
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Where did you find a new back pressure EGR?
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TA78
Active Forum Member
Posts: 362
Agawam,Mass.
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« Reply #6 on: May 03, 2012, 03:55:42 PM » |
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My original transducer was missing, I lucked out and found the whole set up on ebay several years back, then sent them to Steve Gregori(Brakeboosters.com) for the plating.
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berrygoat
Active Forum Member
Posts: 48
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« Reply #7 on: September 08, 2012, 03:02:12 PM » |
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Was the transducer used in 77 or was 78 the first year ?
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79BANDITY84
Active Forum Member
Posts: 67
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« Reply #8 on: September 13, 2012, 11:52:49 AM » |
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Yes.. Transducers were used on 77 W72 also.
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1977 T/A W72
1979 T/A SE Y84 WS6
2002 T/A WS6 Ram Air
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Ben
Oracle Forum Member
Posts: 1063
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« Reply #9 on: September 13, 2012, 08:34:21 PM » |
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Yes.. Transducers were used on 77 W72 also.
Transducers were used starting in 1975 (I believe) through 1979 on all Pontiac blocks, W72 or not. |
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TripleTransAm
Oracle Forum Member
Posts: 1418
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« Reply #10 on: September 14, 2012, 08:34:35 AM » |
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What's a good source for EGR hardware for a W72 nowadays? Any part numbers to look for?
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/Steve 1987 Trans Am GTA 1998 Trans Am WS6 1978 Trans Am L78 1978 Trans Am W72 4-speed WS6    |
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Ben
Oracle Forum Member
Posts: 1063
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« Reply #11 on: September 14, 2012, 09:47:11 PM » |
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What's a good source for EGR hardware for a W72 nowadays?
If you need it to function and don't care about originality, Help Smog Parts (Clean Air Products Inc) in Visalia, CA. can help you out. Not cheap but functions perfectly and will be at your door within a few days. If you need just to have something to look complete, you're looking at parts cars and people tossing complete '75-79 4bbl intakes. The part number for the W72 transducer is no different than any other 400 per the GM parts books, but going off of what John Witzke says otherwise: WA code 1977 engines used GM part 549426 and the rest used GM part 1000029 (which aren't necessarily on the assembly itself). Both items have long since been superseded and then discontinued about 10 years ago or more. The EGR valve itself is 7048194, once again superseded and discontinued. Regular parts stores still sell a functionally correct and close but not 100% cosmetic matching item. |
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racecityguy
Forum Member
Posts: 2
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« Reply #12 on: January 09, 2013, 08:49:28 AM » |
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My original transducer was missing, I lucked out and found the whole set up on ebay several years back, then sent them to Steve Gregori(Brakeboosters.com) for the plating.
Currently looking for the same set up. I have the EGR and the old trandsducer but the EGR doesn't work and the Transducer is rotted. Do you remember how much it was to get this part coated? But first I need to find one. haha. |
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transamcountry.com
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