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| North Coast Jim |
Aug 26 2026, 08:27 AM
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#1
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Member ![]() ![]() Group: Members Posts: 349 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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| emerygt350 |
Aug 27 2026, 02:05 PM
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#2
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Advanced Member ![]() ![]() ![]() ![]() Group: Members Posts: 3,786 Joined: 20-July 21 From: Upstate, NY Member No.: 25,740 Region Association: North East States |
Now I need to find one....
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| JamesM |
Aug 27 2026, 02:45 PM
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#3
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Caretaker of 914s - Master of Fuel Injection ![]() ![]() ![]() ![]() Group: Members Posts: 2,330 Joined: 6-April 06 From: Kearns, UT Member No.: 5,834 Region Association: Intermountain Region |
Now I need to find one.... Unless you are just looking to have every part on your car correct, if you plan on finding one for functional purposes it may not be worth the effort as like I said, the old plastic can shatter when you try to reinstall it. Also the fact at it probably already fell out isnt a good sign. On my cars that dont have the hole welded up (because they still have a stock valve) I took a big piece of metallic tape and covered it up. I put the tape all the way across and under the gasket so it would be sandwiched in when installed for good measure. Actually did this as on one where I was able to get the plug in as well as insurance against it falling out. I suspect you could find any appropriately sized hole plug and it could be made to work just as well, you just need to clearance one side of the plug that would overhang the edge if it were completely round. |
North Coast Jim Proper PCV arrangment for a 2L Aug 26 2026, 08:27 AM
914werke Lens suggestion (from that article) is in additio... Aug 26 2026, 09:28 AM
North Coast Jim
Lens suggestion (from that article) is in additi... Aug 26 2026, 10:25 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
JamesM
Interesting. I did not know this. Is that plug ... Aug 27 2026, 07:39 AM
JamesM I suspect people have found these before and had n... Aug 27 2026, 07:42 AM
emerygt350 Yeah, I just went to Lowe's to look at options... Aug 27 2026, 07:02 PM
JamesM
Yeah, I just went to Lowe's to look at option... Aug 28 2026, 08:55 AM
914werke
I suspect people have found these before and had ... Aug 28 2026, 07:22 AM
Dave_Darling One minor problem is that there is no "correc... Aug 28 2026, 11:57 PM
JamesM
One minor problem is that there is no "corre... Aug 29 2026, 08:19 PM
Ninja :agree: :agree: :agree:
And then...
A vacuum ... Aug 29 2026, 10:24 AM
North Coast Jim
Have a newly rebuilt 2L in the car with 40 IDF We... Sep 2 2026, 08:35 AM![]() ![]() |
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