Need some help or pics for this - The 1947 - Present Chevrolet & GMC Truck Message Board Network

1972SUPERSB · 09-27-2012, 09:29 AM

Here are some pics of my vacuum diaphrahm under the hood. It is missing something but im not sure what. If someone could tell me whats missing or even better a picture to what I need. Not even sure what door or flap it is supposed to open? It works with the vacuum hose hooked up to it just doesnt do anything. It hought it may work with the passenger side kcik panel fresh air actuator but not sure?

**RenoKeene** · 09-27-2012, 11:13 AM

It operates the fresh air flap in the cowel, which has the post broken off or is missing alltogether. LMC sells them. Here is a pic.....

**RenoKeene** · 09-27-2012, 11:16 AM

Part #32-0790
Here is the link
http://www.lmctruck.com/icatalog/cb/full.aspx?Page=120

custom1970 · 09-27-2012, 11:38 AM

I think he might be talking about the arm/linkage that goes from the diaphragm to the firewall. Reason i say that is mine is also missing and i need one to. Been meaning to look for one for a while now.

1972SUPERSB · 09-27-2012, 12:56 PM

Quote:

Originally Posted by custom1970

I think he might be talking about the arm/linkage that goes from the diaphragm to the firewall. Reason i say that is mine is also missing and i need one to. Been meaning to look for one for a while now.

Yes I see the hole in front of it and was wondering what it was for. Someone said it may be for the antenna? I'm sure there is peice that would connect to the flap. Thanks for the link by the way to LMC.
Posted via Mobile Device

**RenoKeene** · 09-27-2012, 01:03 PM

The arm/link you guys are talking about is the post on the flap...all one piece. Look at the LMC link I posted. You have to replace the whole flap.

custom1970 · 09-27-2012, 01:40 PM

If you find and extra one let me know,

**RenoKeene** · 09-27-2012, 01:54 PM

Quote:

Originally Posted by custom1970

If you find and extra one let me know,

If all your missing is the arm it would be easy to make one out of hollow tubing, measure for length, flatten one end and bend it 90 deg and drill a hole for the diaphram and another hole where it slips over the post. Just a thought.
Probably easier to find one on the parts board though

09-27-2012, 09:29 AM	#1
1972SUPERSB Registered User Join Date: Sep 2012 Location: San Antonio, TX Posts: 1,026	Need some help or pics for this Here are some pics of my vacuum diaphrahm under the hood. It is missing something but im not sure what. If someone could tell me whats missing or even better a picture to what I need. Not even sure what door or flap it is supposed to open? It works with the vacuum hose hooked up to it just doesnt do anything. It hought it may work with the passenger side kcik panel fresh air actuator but not sure? Attached Images __________________ Jeff 1972 Cheyenne Super SWB 350, Auto, Bucket Seats w/Console, Tach, Factory A/C, P/S ,P/B, Tilt 1998 Chevy 1500 Ext Cab 5.7, Pewter w/blue interior

09-27-2012, 11:13 AM	#2
RenoKeene Florida Edition Join Date: Oct 2010 Location: Fruitland Park, FL Posts: 4,034	Re: Need some help or pics for this It operates the fresh air flap in the cowel, which has the post broken off or is missing alltogether. LMC sells them. Here is a pic..... Attached Images __________________ 70 GMC Short Stepside "Rose"-An American Beauty: Factory 402/TH400, AM/FM, AC, Tilt, Tach, Buckets, Posi, PS, PB, 3-5 Drop, Complete Resto-Rod 67 C-20 Slant Back Wrecker "Mad Max" 67 C-10 Ratrod "Step-N-Wolf" 71 Serro Scotty Sportsman camper "Scotty" 97 LT1 Z28 "The Hornet" Link to more pics of "Rose" http://67-72chevytrucks.com/vboard/a...p?albumid=1684 Check out my "Cheap Tricks" thread and add to it if you can, lots of good info there. http://67-72chevytrucks.com/vboard/s...d.php?t=489394

09-27-2012, 11:38 AM	#4
custom1970 Member Join Date: Jan 2011 Location: Stuart, Florida Posts: 467	Re: Need some help or pics for this I think he might be talking about the arm/linkage that goes from the diaphragm to the firewall. Reason i say that is mine is also missing and i need one to. Been meaning to look for one for a while now. __________________ 1970 CST LB Fleetside, 402 BB, PS, PB,AC 1968 Firebird 400 conv. 1965 Chris Craft 17' wood ski boat (SN #0001)

09-27-2012, 01:03 PM	#6
RenoKeene Florida Edition Join Date: Oct 2010 Location: Fruitland Park, FL Posts: 4,034	Re: Need some help or pics for this The arm/link you guys are talking about is the post on the flap...all one piece. Look at the LMC link I posted. You have to replace the whole flap. __________________ 70 GMC Short Stepside "Rose"-An American Beauty: Factory 402/TH400, AM/FM, AC, Tilt, Tach, Buckets, Posi, PS, PB, 3-5 Drop, Complete Resto-Rod 67 C-20 Slant Back Wrecker "Mad Max" 67 C-10 Ratrod "Step-N-Wolf" 71 Serro Scotty Sportsman camper "Scotty" 97 LT1 Z28 "The Hornet" Link to more pics of "Rose" http://67-72chevytrucks.com/vboard/a...p?albumid=1684 Check out my "Cheap Tricks" thread and add to it if you can, lots of good info there. http://67-72chevytrucks.com/vboard/s...d.php?t=489394

09-27-2012, 01:40 PM	#7
custom1970 Member Join Date: Jan 2011 Location: Stuart, Florida Posts: 467	Re: Need some help or pics for this If you find and extra one let me know, __________________ 1970 CST LB Fleetside, 402 BB, PS, PB,AC 1968 Firebird 400 conv. 1965 Chris Craft 17' wood ski boat (SN #0001)

09-27-2012, 11:16 AM	#3
RenoKeene Florida Edition Join Date: Oct 2010 Location: Fruitland Park, FL Posts: 4,034	Re: Need some help or pics for this Part #32-0790 Here is the link http://www.lmctruck.com/icatalog/cb/full.aspx?Page=120 __________________ 70 GMC Short Stepside "Rose"-An American Beauty: Factory 402/TH400, AM/FM, AC, Tilt, Tach, Buckets, Posi, PS, PB, 3-5 Drop, Complete Resto-Rod 67 C-20 Slant Back Wrecker "Mad Max" 67 C-10 Ratrod "Step-N-Wolf" 71 Serro Scotty Sportsman camper "Scotty" 97 LT1 Z28 "The Hornet" Link to more pics of "Rose" http://67-72chevytrucks.com/vboard/a...p?albumid=1684 Check out my "Cheap Tricks" thread and add to it if you can, lots of good info there. http://67-72chevytrucks.com/vboard/s...d.php?t=489394

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