 Question for an LE owner? Early or late 2.0 plenum on LEs?, which intake/crank case vent system to use? |
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| JamesM |
 Jan 20 2020, 01:26 PM
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Senior Member  Group: Members Posts: 1,900 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region  |
Re assembling a 74 LE Bee from a pile of parts and found the that intake plenum that I got with its original motor is the later style that doesn't use the "F" vacuum connector/has no port of the crank case vent.
My instinct is telling me that this is the wrong part, but i wanted to confirm with another LE owner as to the intake plenum/ crank case vent system used on their LEs. Having noticed other differences between the LE and my earlier 74 car I just want to be absolutely sure before I go and prep another plenum to install. |
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| Mikey914 |
Jan 20 2020, 04:28 PM
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The rubber man Group: Members Posts: 12,667 Joined: 27-December 04 From: Hillsboro, OR Member No.: 3,348 Region Association: None 
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| JamesM |
Jan 20 2020, 05:06 PM
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Senior Member Group: Members Posts: 1,900 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
QUOTE(Mikey914 @ Jan 20 2020, 03:28 PM)  Nope! Already got one of those from you. The problem is the 2.0 plenum currently on this motor has no where for that part to attach! Difference between the early and late 2.0 plenums. Thankfully i have spares! Here is a picture of the 2 versions side by side so everyone can see what im talking about. Early 2.0 plenums had a larger port on them for the "F" piece to supply manifold vacuum to both the crank case vent valve and the control port on the decel valve. When the crank case vent system was changed in later 2.0s the port on the plenum was changed to only supply vacuum to the decel valve as on the later cars the oil tower (with no PCV) vents to the air filter box. My issue was just determining which one of these is correct for an LE, as I suspected the one that came with my LE was incorrect (as confirmed by Jeff)  |
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Posts in this topic
JamesM Question for an LE owner? Early or late 2.0 plenum on LEs? Jan 20 2020, 01:26 PM
JeffBowlsby Its the standard 2.0L plenum...it requires the F c... Jan 20 2020, 02:21 PM
JamesM
Its the standard 2.0L plenum...it requires the F ... Jan 20 2020, 03:40 PM 914Sixer Easy spot, the one on the left is a 75-76 because ... Jan 20 2020, 05:28 PM JamesM
Easy spot, the one on the left is a 75-76 because... Jan 21 2020, 09:32 AM 914Sixer 70-74 uses a single pole switch. Jan 21 2020, 10:35 AM JamesM
70-74 uses a single pole switch.
Correct. I h... Jan 23 2020, 10:25 AM Mikey914 We have an unmolested LE Bumblebee, I will have to... Jan 21 2020, 12:20 PM |
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