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#1 |
Registered User
Join Date: Sep 2012
Location: San Antonio, TX
Posts: 1,026
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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?
__________________
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 |
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#2 |
Florida Edition
![]() ![]() Join Date: Oct 2010
Location: Fruitland Park, FL
Posts: 4,025
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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.....
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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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#3 |
Florida Edition
![]() ![]() Join Date: Oct 2010
Location: Fruitland Park, FL
Posts: 4,025
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Re: Need some help or pics for this
__________________
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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#4 |
Member
Join Date: Jan 2011
Location: Stuart, Florida
Posts: 459
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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) |
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#5 | |
Registered User
Join Date: Sep 2012
Location: San Antonio, TX
Posts: 1,026
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Re: Need some help or pics for this
Quote:
Posted via Mobile Device
__________________
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 |
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#6 |
Florida Edition
![]() ![]() Join Date: Oct 2010
Location: Fruitland Park, FL
Posts: 4,025
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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 |
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#7 |
Member
Join Date: Jan 2011
Location: Stuart, Florida
Posts: 459
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Re: Need some help or pics for this
Unless I'm wrong the arm doesn't come with the flap. The body shop lost mine a long time ago.
__________________
1970 CST LB Fleetside, 402 BB, PS, PB,AC 1968 Firebird 400 conv. 1965 Chris Craft 17' wood ski boat (SN #0001) |
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#8 |
Registered User
Join Date: Sep 2012
Location: San Antonio, TX
Posts: 1,026
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Re: Need some help or pics for this
That's exactly what I need. Thanks
Posted via Mobile Device
__________________
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 |
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#9 |
Member
Join Date: Jan 2011
Location: Stuart, Florida
Posts: 459
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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) |
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#10 | |
Florida Edition
![]() ![]() Join Date: Oct 2010
Location: Fruitland Park, FL
Posts: 4,025
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Re: Need some help or pics for this
Quote:
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__________________
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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#11 |
Florida Edition
![]() ![]() Join Date: Oct 2010
Location: Fruitland Park, FL
Posts: 4,025
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Re: Need some help or pics for this
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 ![]()
__________________
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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#12 |
Member
Join Date: Jan 2011
Location: Stuart, Florida
Posts: 459
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Re: Need some help or pics for this
Brad, here a pic of what i have (not deliberately trying to hijack the thread) so what your telling me is we both need that flap and pieces, the arm and the white plastic piece (he has the white pc)?? How hard was it to replace yours? Any ideas as to where we could find that arm?
__________________
1970 CST LB Fleetside, 402 BB, PS, PB,AC 1968 Firebird 400 conv. 1965 Chris Craft 17' wood ski boat (SN #0001) |
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#13 |
Member
Join Date: Jan 2011
Location: Stuart, Florida
Posts: 459
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Re: Need some help or pics for this
1972Super, here's a pic i found of what the arm installed looks like.
__________________
1970 CST LB Fleetside, 402 BB, PS, PB,AC 1968 Firebird 400 conv. 1965 Chris Craft 17' wood ski boat (SN #0001) |
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#14 |
Florida Edition
![]() ![]() Join Date: Oct 2010
Location: Fruitland Park, FL
Posts: 4,025
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Re: Need some help or pics for this
Yep, you need the flap, arm and plastic piece. You can get the flap from LMC (only supplier I found) and make the arm and plastic piece that goes on the firewall. You might get lucky on the parts board with the plastic piece and the arm but the flaps are probably all toast (weak design).
If you would like I can pull my arm and draw one up for you to make (I draw on a computer for a living), same with the plastic piece. Look on the pic you posted...the little screw on the top of the arm goes through the flap post, thats what holds the arm to the post and allows the whole thing to turn. You should be able to look in the cowel and see the flap (if its there). Reach in and pull the pin with the spring on it and take the flap out. Should come out easy with the post broke off. If I can help you guys out let me know, I'll be glad to.
__________________
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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#15 | |
Registered User
Join Date: Sep 2012
Location: San Antonio, TX
Posts: 1,026
|
Re: Need some help or pics for this
Quote:
Posted via Mobile Device
__________________
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 |
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#16 |
Old member
Join Date: Jan 2002
Location: Liberty, & Garden City S.C. , U.S.
Posts: 19,936
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For the plastic just use a o-ring. I did away with mine all together. Mine runs 38 degree's all the time. I sealed it up with ac tape and a peice of thin sheetmetal.
The arm is a simple fix as stated. Tubing the right size and use a small cotter key are very small screw. ![]() ![]()
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1971 LWB Custom, 6.0LS & 4L80E, Speedhut.com GPS speedometer & gauges with A/C. 20" Boss 338's Grey wheels 4 wheel disc brakes. My Driver Seeing the USA in a 71 ![]() Upstate SC GM Truck Club 2013,14 and 2016 Hot Rod Pour Tour http://upstategmtrucks.com/ Get out and drive the truck this summer and have some fun! It sucks not being able to hear! LWB trucks rule, if you don't think so measure your SWB! After talking to tech support at Air Lift I have found out that the kit I need is 60811. Per the measurements I gave them. Ride height of truck inside spring and inside diameter of springs. |
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