After a complete engine rebuild I am fighting what I believe is an intake manifold leak.  Car starts right up cold with full choke but will not idle when the choke is all the way in.  The idle picks up when I spray WD 40 around it which I assume suggests that it is a vacuum leak that I am trying to chase down.  The problem is that I have had the manifold on and off twice using a new gasket each time both on the block and the intake manifold and the problem still exists.  The carburetor (Carter BB-1) was never an issue before the engine rebuild but I did get back into it to make sure the float level was correct and it was. I even swapped out another intake manifold I had with no change.  The gaskets for the exhaust manifold I have been using are a one piece affair that includes the intake manifold gasket and I am wondering if that is the problem. It's been a long time since I took the engine apart for the rebuild and even longer getting it done but I vaguely remember that there was a gasket on each side of the intake manifold and that there were individual  glands and rings on the exhaust ports.  The rebuilder reassembled everything using a new gasket set he ordered and discarded the old stuff.
 Has anyone else dealt with this issue and managed to deal with it successfully?  Is my recollection correct and if so can you still get the glands and rings?  Car runs great with the choke half way out, go figure!

If a surface is rough I have used JB Weld to fill it in. I put waxed paper on a flat plate or just waxed the plate and screwed it down with the epoxy between the plate and the rough surface. Let it cure and when it's hard remove the plate smooth up the edges with a file. Then it will hold a gasket a lot better. I had to do both sides of my thermostat housing and water neck that way. If your gas gauge doesn't seal with what you have this might be a idea. Our car has no gauge just a plate blocking the hole. I have thought about trying to fit a boat gas tank gauge in there but think about it is as far as I have got. 

We moved to the Birmingham Alabama area to be closer to our oldest daughter. We live on top of a hill with a steep drive. My gas tank gauge leaked every time I drive up the hill, so have been trying to seal it better. I have found a supplier of vitriol gasket material that is impervious to gas. I am trying that with some fuel resistant Permatex MotoSeal gasket maker and a newer product Permatex Permashield gasket dressing.

My original tank had a long neck supporting the gas gauge and leaking was not a problem, but I had to replace that tank many years ago.

Anyone else have this issue and solved it?

The spring arrived today. It looks a lot better than the one I have in the valve now. I'll change it out before we drive the car again!

Thank you very much Tom!!

Picture would be nice!!

Thanks!!

Our local AACA club sponsored a special Southeastern meet this past October.  I showed my 1929 Plymouth U 4 door sedan in the Driver Participation category.

here are a few pictures The plaque includes a placard from when it was last shown at an AACA meet, in 1981!  (I was overseas in the Army and my uncle took my car to the show ion Orlando Florida, near my parents' home.

There were a few other Plymouths in the show - including a 1934 PE.  I should have taken pictures of them too. 

Shipped..

Quote from: Articifer Tom on December 25, 2024, 11:25:24 AMGive me your address . Do not want anything for it .

Walter Jones 1102 Roach St. Bowie Texas 76230
Thanks!