 Decel Valve Hose Connection Check, Which is correct? |
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| FlacaProductions |
 Oct 12 2024, 07:44 PM
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Senior Member  Group: Members Posts: 1,840 Joined: 24-November 17 From: LA Member No.: 21,628 Region Association: Southern California 
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I've done a lot of reading on this - prepping to re-install the decal valve. I have a good valve and new hoses.
Does this picture show correct routing? ie: "side" port going to the top/side of the airbox. (pic originally from @TJB/914)  |
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| JeffBowlsby |
Oct 14 2024, 08:07 AM
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914 Wiring Harnesses Group: Members Posts: 8,777 Joined: 7-January 03 From: San Ramon CA Member No.: 104 Region Association: None
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Or find the correct 73-74 plenum.
Or maybe there is another easier way...The 75-76 cars also had the decel valve so plumb it like those cars. Maybe its as simple as connecting the hoses up to the plenum differently. 73-74 plenum diagram below for reference. Can you tell me what the port ODs are for the two ports on the side and the vertical one on the top? The 73-74 plenum has 10mm, 13mm and the top is 8mm. Attached image(s) 
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Posts in this topic
FlacaProductions Decel Valve Hose Connection Check Oct 12 2024, 07:44 PM
JeffBowlsby The early 74s 2.0 are like the 73s with the charco... Oct 12 2024, 07:57 PM FlacaProductions Understood. Thank you, Jeff! Oct 12 2024, 09:31 PM FlacaProductions I'm confused @JeffBowlsby
Went out to do the... Oct 13 2024, 06:08 PM JeffBowlsby The 75-76 air plenums have different port sizes as... Oct 13 2024, 06:53 PM JeffBowlsby 73-74 Note the two side port relative sizes. Oct 13 2024, 07:54 PM JeffBowlsby 75-76 - Smaller side port (it appears to have a c... Oct 13 2024, 07:56 PM FlacaProductions Yup - appears i have a later plenum.
Interesting.... Oct 14 2024, 06:36 AM emerygt350 Yeah. As long as you have manifold at the top, fre... Oct 14 2024, 03:39 PM dr914@autoatlanta.com front and rear ports to vacuum side port to air cl... Oct 14 2024, 03:46 PM
dr914@autoatlanta.com also the air cleaner and sheet metal should be sem... Oct 14 2024, 03:47 PM emerygt350 Engine release cable? That sounds dangerous! Oct 14 2024, 04:30 PM FlacaProductions Thanks for all of this input.
My time in Indiana... Oct 14 2024, 07:18 PM |
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