I just had the same thing happen on my 52. thought the timing chain was hitting the cover at first, lucky I found this post and it was just the oil fill tube hitting the crank. so I just pulled up on it a little and the noise stopped. after reading this post it sounds like I need to investigate just where the flap is pointing. right now, the vent is not facing forward. does the tube just pull out? is there any o-rings or anything?
Thanks Mike

Try Mike chirco Tucson az. He helped me with my transmission parts! Great guy!

Ok, so I put a rebuilt carburetor on, and it fixed the problem! works with filter on or off. It was the carburetor all along. thanks everyone for your help! now on to the other stuff I have to do to make my 52 whole again. what fun! :)

Thanks again for all the great responses, I changed the air cleaner to a triple stack. I'm beginning to think it's the carburetor itself. I have a rebuilt one coming and I'll let everyone know if it solves the problem.

Hi all, well we are so busy cleaning up after our monsoon weather I haven't had a chance to get back to the Packard project. will take all your suggestions into advisement and let everyone know what I find! thanks again for the info!

thank you all for the responses. The aftermarket air cleaner I;m using is a simple paper air filter 4" x 2" stacked two high. not very big.

Attach file:

---

  2 barrel air cleaner.jpg (15.88 KB)

I have a 1952 200 deluxe with a 327ci engine, 2brl carburetor 928S. when the car is warmed up it dies. Compression test seems fine. vacuum is with in specs.
Odd thing is when I remove the aftermarket air cleaner. the engine dies. if I set up with air cleaner off and put it back on the idle is way too fast. any ideas? should I buy a rebuilt carb?

Thanks for the information. I have been working on this 52 since I got it back in December of 2021. had the trans go out a few months ago, which I rebuilt and have been working on the gas issues for a few weeks. so other than a few gallons of gas I have not paid attention to when I filled it up. I just put 12in electric pusher fans on the new radiator I put in. I also changed the gas to high octane 91%. It seemed to help a little. now I'm dealing with heat and possibly stuck float or percolation issues. I think carburetor rebuild is next in order. what fun!

Ok so I can't get non-ethanol gas in town, so I tried premium 91 octane and it kind of worked. the vaporization point seemed to have changed. I also changed out the fuel filter which was pretty restricted. Now I'm installing electric pusher fans to keep the temp down around 160-170. I still think I'm having vapor-lock issues or maybe a stuck float, because it still dies when I come to a stop after driving and the filter seems to be draining when hot. I will most likely rebuild the carburetor and check for insulated spacer. I believe the 3/8in stock spacer is there.

Attach file:

---

  carb insulator.jpg (56.03 KB)

Thanks for the response! since I blocked off the old fuel pump and ran the main line well away from the block, I don't think it's the inlet side of the fuel filter that is vaporizing! I don't know if the manifold spacer is phenolic or not. I'll post pictures of what I have.
I've drained the gas out and will try non ethanol gas. maybe with a lead additive. Just got to work my way through it.