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02-15-2007, 07:33 PM
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#1 (permalink) |
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Junior Member
Join Date: Jan 2007
Posts: 12
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Vacuum Reducer Valve (VRV)
I've searched extensively (NAPA, Autozone, etc) for a Vacuum Reducer Valve for my 77 olds cutlass to no avail. Does anyone have any sources for purchasing this part?
Caution: I was replacing old vacuum hoses and when I pulled the hose off of the vrv a piece of the old vrv came off with the old hose - the 30 yr old plastic parts are very delicate to say the least... Appreciate any leads - Gene  |
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02-15-2007, 08:03 PM
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#2 (permalink) |
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Senior Member
Join Date: Sep 2006
Location: Medford, Oregon
Posts: 806
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Is this the piece that bolts to the intake near the front, and has three vacuum hoses running to it?
__________________
1964 Cutlass Factory 4spd 1965 442 4spd 1967 442 Auto 1967 Cutlass Convertible 1968 442 Auto 1969 442 W30 Auto 1970 442 4spd 1971 Cutlass Flat Top Wagon 1973 Che*vy 3/4 Ton 454/TH400 Tow Vehicle Only the tow vehicle is finished! |
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02-16-2007, 06:19 AM
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#3 (permalink) |
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Junior Member
Join Date: Jan 2007
Posts: 12
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VRV photos attached
The VRV is made of plastic and it lays on the head in front of the carburetor.
One side is black and the other is beige. According to the shop manual... "The VRV reduces intake manifold vacuum... The valve has one port on the manifold side and two ports on the DTVS side of the valve; the center port is open to vent at the carburetor air horn, the outboard port to the "MT" port of the DTVS switch." Also, according to the manual..."The driveability of the car will be affected and the idle will be rough if the valve is malfunctioning." I attached a couple pictures of it and if anyone knows who sells it, please let me know... Thanks, Gene |
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02-16-2007, 06:43 AM
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#4 (permalink) |
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Super Moderator
Join Date: Apr 2004
Location: San Antonio, Texas
Posts: 806
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If you can get a part number (on the VRV or from the shop manual), a GM dealer or www.gmpartsdirect.com might still stock it. Otherwise, it looks like a trip to the salvage yard to me.
C.J.
__________________
Home of the 1971 Cutlass Supreme convertible Super Karate Monkey Death Car.  
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02-16-2007, 12:09 PM
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#5 (permalink) |
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Member
Join Date: Jan 2007
Location: Texas
Posts: 55
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I have a '77 parts Manual...I'll look for a part number this eve.
__________________
Dan S 70 442 W-30 4-speed 70 442 W-30 Post Coupe Bracket Race car..11.43 @ 3650lbs. |
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02-16-2007, 12:28 PM
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#6 (permalink) |
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Junior Member
Join Date: Jan 2007
Posts: 12
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Vrv #
Thanks Dan, and I appreciate everyones help to this point!
Gene F. |
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02-18-2007, 05:49 PM
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#7 (permalink) |
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Senior Member
Join Date: Jan 2007
Location: Youngstown, Ohio
Posts: 236
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How about this, the number on the black side is 419541. The number on the white side is 28776A. If you can't find a new one, I have a used one .
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02-18-2007, 06:55 PM
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#8 (permalink) |
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Junior Member
Join Date: Jan 2007
Posts: 12
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I believe you've got it
I have the same number on the black side of the vrv as well. Cannot make out the number on the beige side, but yours is probablty the same one. If you want, let me know the cost for it (send info in an email if you'd like) I appreciate your time and kindness in locating one for me!!
Gene |
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