 Proper PCV arrangment for a 2L, A little help please |
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| North Coast Jim |
 Aug 26 2026, 08:27 AM
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Member  Group: Members Posts: 347 Joined: 11-December 15 From: Northern Ohio Member No.: 19,450 Region Association: MidAtlantic Region 
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Have a newly rebuilt 2L in the car with 40 IDF Weber carbs which is running fine except for a RMS dripping oil. We believe we installed it correctly and took careful steps assembling the rest of the engine/flywheel/clutch/transmission. We believe that the crankcase vent system is not working properly which is pressurizing the crankcase as RPM builds, thereby pushing oil out the RMS.
My oil fill assy has a 022115542 PCV assy in it and a solid oil fill cap. I took the valve out to see if it was working. When I blow into the bottom it is initially open. Increased pressure it closes the valve. Seems backward to me. My oil fill tower has no vent in it. I do know that when I got this motor, 6 years ago, the PCV assy was in pieces all captured in the oil fill assy. I took it out and reassembled it thinking it was correct. Maybe not ?? I have Len Hoffman heads when he sold them direct and the vents are capped shut per his instructions. Any help is appreciated. |
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| 914werke |
Aug 26 2026, 09:28 AM
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"I got blisters on me fingers" Group: Members Posts: 11,731 Joined: 22-March 03 From: USofA Member No.: 453 Region Association: Pacific Northwest
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Lens suggestion (from that article) is in addition to capping the head vent lines also change the oil fill tower to the late version w/o the PVC & run a larger catch /vent line to a can
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| North Coast Jim |
Aug 26 2026, 10:25 AM
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#3
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Member Group: Members Posts: 347 Joined: 11-December 15 From: Northern Ohio Member No.: 19,450 Region Association: MidAtlantic Region
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QUOTE(914werke @ Aug 26 2026, 11:28 AM)  Lens suggestion (from that article) is in addition to capping the head vent lines also change the oil fill tower to the late version w/o the PVC & run a larger catch /vent line to a can The direction I'm heading. Thanks |
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Posts in this topic
North Coast Jim Proper PCV arrangment for a 2L Aug 26 2026, 08:27 AM
JamesM
We believe that the crankcase vent system is not ... Aug 26 2026, 10:28 AM
emerygt350 Interesting. I did not know this. Is that plug s... Aug 26 2026, 04:09 PM |
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