Air Cleaner hose clips and connections? - The 1947 - Present Chevrolet & GMC Truck Message Board Network

kna4977 · 01-09-2025, 10:36 PM

Original air cleaner has a hose connector on top on the diaphragm at the front of the air cleaner which the stove pipe that comes up from the driver exhaust manifold connects to. Under the air cleaner are two ports and a hose holder. Nothing connected, but what is supposed to be here and where does it route and connect? Here are some pics. What hoses should be in place, how should they rout, where should they connect.

**LockDoc** · 01-10-2025, 11:24 AM

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Do you have a factory Chassis Service Manual or Overhaul Manual for the truck. It should show what you need in one of those.

If you don't have them they are on line for download by board member "Hatzie".

http://67-72chevytrucks.com/vboard/s....php?p=5781194

I am going to move this to the 67-72 Chevy Trucks message board.

LockDoc

kna4977 · 01-10-2025, 10:18 PM

Quote:

Originally Posted by LockDoc

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Do you have a factory Chassis Service Manual or Overhaul Manual for the truck. It should show what you need in one of those.

If you don't have them they are on line for download by board member "Hatzie".

http://67-72chevytrucks.com/vboard/s....php?p=5781194

I am going to move this to the 67-72 Chevy Trucks message board.

LockDoc

Yes, but it doesn't specifically show all I need to see. It doesn't say or show how the hoses route the type of hose (basic vacuum and size or ribbed) or specifically where they connect nor does it show if there are clamps involved and what type if so. I need to see an actual real life correct setup to get it right.

**1970cstblazer** · 01-11-2025, 08:33 AM

Here is an original air cleaner.

kna4977 · 01-11-2025, 01:25 PM

Quote:

Originally Posted by 1970cstblazer

Here is an original air cleaner.

Perfect! Where exactly does the hose connect to manifold vacuum? Reason I ask is there is a port on the side of my carburetor that is capped and currently unused.

**1970cstblazer** · 01-11-2025, 02:42 PM

Note the white stripe vacuum hose going to the carb. The port that hose connects to is on the passengers side of the carb in the middle of the choke linkage.

kna4977 · 01-11-2025, 03:15 PM

Quote:

Originally Posted by 1970cstblazer

Note the white stripe vacuum hose going to the carb. The port that hose connects to is on the passengers side of the carb in the middle of the choke linkage.

Like this

**1970cstblazer** · 01-11-2025, 07:24 PM

Looks correct.

01-09-2025, 10:36 PM	#1
kna4977 Senior Member Join Date: Jul 2006 Location: DFW Posts: 571	Air Cleaner hose clips and connections? Original air cleaner has a hose connector on top on the diaphragm at the front of the air cleaner which the stove pipe that comes up from the driver exhaust manifold connects to. Under the air cleaner are two ports and a hose holder. Nothing connected, but what is supposed to be here and where does it route and connect? Here are some pics. What hoses should be in place, how should they rout, where should they connect. Attached Images Last edited by kna4977; 01-09-2025 at 10:43 PM.

01-10-2025, 11:24 AM	#2
LockDoc The Older Generation Join Date: Aug 2006 Location: Montezuma, Iowa Posts: 26,743	Re: Air Cleaner hose clips and connections? - Do you have a factory Chassis Service Manual or Overhaul Manual for the truck. It should show what you need in one of those. If you don't have them they are on line for download by board member "Hatzie". http://67-72chevytrucks.com/vboard/s....php?p=5781194 I am going to move this to the 67-72 Chevy Trucks message board. LockDoc __________________ Leon Locksmith, Specializing In Antique Trucks, Automobiles, & Motorcycles (My Dually Pickup Project Thread) http://67-72chevytrucks.com/vboard/s...d.php?t=829820 - Last edited by LockDoc; 01-10-2025 at 11:39 AM.

01-11-2025, 08:33 AM	#4
1970cstblazer All stock and staying that way Join Date: Jul 2003 Location: Elkland, PA Posts: 2,500	Re: Air Cleaner hose clips and connections? Here is an original air cleaner. __________________ 1970 K/5 Blazer CST 4WD, TOTM winner December 2024! Medium Bronze poly, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD Kelsey Hayes wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Frame off restored 1970 K20, To be a clone of my Grandfather's K20, Dark Blue poly, 350, 4 speed, 16.5" X 8.25" Kelsey Hayes wheel option, tilt, tach, vacuum, AM radio. Latest project truck 1972 Cheyenne Super 20 2WD, Dark Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 51k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 71k miles, 3.6, 8L45, 3.23 LS, 18" wheels

01-11-2025, 02:42 PM	#6
1970cstblazer All stock and staying that way Join Date: Jul 2003 Location: Elkland, PA Posts: 2,500	Re: Air Cleaner hose clips and connections? Note the white stripe vacuum hose going to the carb. The port that hose connects to is on the passengers side of the carb in the middle of the choke linkage. __________________ 1970 K/5 Blazer CST 4WD, TOTM winner December 2024! Medium Bronze poly, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD Kelsey Hayes wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Frame off restored 1970 K20, To be a clone of my Grandfather's K20, Dark Blue poly, 350, 4 speed, 16.5" X 8.25" Kelsey Hayes wheel option, tilt, tach, vacuum, AM radio. Latest project truck 1972 Cheyenne Super 20 2WD, Dark Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 51k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 71k miles, 3.6, 8L45, 3.23 LS, 18" wheels

01-11-2025, 07:24 PM	#8
1970cstblazer All stock and staying that way Join Date: Jul 2003 Location: Elkland, PA Posts: 2,500	Re: Air Cleaner hose clips and connections? Looks correct. __________________ 1970 K/5 Blazer CST 4WD, TOTM winner December 2024! Medium Bronze poly, 93k ACT. miles, 350, 4 speed, rear positraction, 16.5" x 8.25" HD Kelsey Hayes wheel option, tilt, tach, vacuum, AM/FM, manual throttle...Dad ordered and purchased new 4/70. Frame off restored 1970 K20, To be a clone of my Grandfather's K20, Dark Blue poly, 350, 4 speed, 16.5" X 8.25" Kelsey Hayes wheel option, tilt, tach, vacuum, AM radio. Latest project truck 1972 Cheyenne Super 20 2WD, Dark Blue/White, 90K ACT. miles, 402, TH400, 4.10 open, tilt, tach, vacuum, A/C, AM/FM, manual throttle.. A mostly original paint never rusted Texas survivor... 2017 Sierra 1500 SLT 4WD, Black, 51k miles, 5.3, 6L80E, 3.42 LS, 20" polished wheels, everything but moonroof and 6.2... 2019 Canyon SLT 4WD, White, 71k miles, 3.6, 8L45, 3.23 LS, 18" wheels



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