 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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| FlacaProductions |
Oct 13 2024, 06:08 PM
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#2
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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'm confused @JeffBowlsby
Went out to do the decel valve install and found the hose sizes to be different from what's listed on your guide. Capped connection on the left (which should be for hoses #15 and #9 via a branched adapter) is smaller than the one on the right. The short leg on the right (which should be for hose #13) currently connects to a "step-up" adapter that then goes direct to the PCV valve and fits correctly just like hose #9 should be. Branched elbow is too big for either one of these nipples. Connection on upper, passenger side of the airbox (hose #14) is correct for the direct line to the decel valve. This is a "late 74" 2.0 setup with the canister on the rear wall of the engine compartment.  |
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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 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 JeffBowlsby Or find the correct 73-74 plenum.
Or maybe there ... Oct 14 2024, 08:07 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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