Pat:

I have #35, #37, #40 & #43 all are new



37 or 43's were used in the Lincoln ECU carbs.



#52 were used in the 52/53 Mercs

marv

I will look to see what power valves I have. What # are you using?



I have made my own larger number power valve by drilling the orifice hole larger or adding an additional hole like the higher numbered power valves have. I like to write the #size on the power valve with a scriber or etcher so one does not forget what it is now. I use a small numbered drill set to drill the holes.

marv

If your car is dying after letting off the gas, add a dashpot like they used on the automatic trans carbs.    I had to do this on my supercarged car.   Once properly adjusted it works perfect and my car does not die after letting of the throttle quickly.   I have to buy a fresh dashpot every so often to make sure they are working properly.  I also reinforced the original style dashpot bracket as I could see it flex when I closed the throttle.

I would like to try a larger number power valve for a in my car.   I have it jetted rich to work well under boost, but my mileage has suffered.  A larger valve may help me get it dialed in.  If any one has a fairly large number teapot power valve they would sell, let me know.

Pat Fleischman

Using an appropriately sized later model carb to replace the Teapot by using an adapter on the “A” (Teapot) intakes works quite well as long as the distributor is upgraded to the later model distributor at the same time.  Topend performance is compromised with the use of the adapter but normal driving around is not.  Hooking up the newer model carb up to the original Load-O-Matic distributor typically has too much ignition advance at cruise while having no advance during hard acceleration.  Drivability obviously suffers when not upgrading the distributor to match the carburetor.

Lorena, Texas (South of Waco)

Jim.  Thanks for clarifying which part of the carb you were actually looking at.  Most people just think of the diaphram or actuator as the power valve itself.  I looked at some of the Teapot power valves sitting here and there was a #21, #32, and a #52 sitting loose.  As you observed, the hole size in the smaller valves do indeed match up closely to the thousandts to the hole diameter in the side of the valve while the #52 had two holes essentially adding up to somewhere in the neighbor hood of two 0.026” diameter drills.  Bigger the number, the more the fuel.  Sounds like a good tuning tool if wanting to increase fuel mixture for acceleration purposes while trying to maintain the original jetting for economy purposes.

Lorena, Texas (South of Waco)

To get in on your post without starting another thread about the Model#4000, I'm having problems with mine dying when I come to a stop, I have searched the forums and I know a lot of guys are having problems with the 4000.

Has anyone successfully changed the 4000 for another model carb, I've heard the Holly 600 can be adapted to the yblock.

I checked with Pony and they want near $550,00 for a carb and if it's eventually going to have the same problems I can't see dropping that kind of money and still have problems later on when the carb gets some wear on it.

I would appreciate anyones input on this.

Claim to fame is the car was used as an extra in the movie Diner with Micky Rourke, Steve Gootenburg, Paul Riser and Kevin Bacon.

Marvh

Yes, that's the info I was after. Thanks. I don't think the valves are readily available these days, but it gives me an idea of what to look for later on,

Jim

Hoosier, as I mentioned, the engine does run great, but has only been run in in the chassis. I was just looking for more info to utilize later for tuning when the vehicle is on the road.

Jim

Interesting video. Many people do not know that problem with the vacuum leak. Very knowledgeable person there. Thanks Charlie.



here is some other links on this forum to discussions on tea pot problems.



http://www.y-blocksforever.com/forums/Topic21001-6-1.aspx

http://www.y-blocksforever.com/forums/Topic25447-3-1.aspx#bm25461



marv

Informative video:

http://www.youtube.com/user/charliemccraney#p/u/4/ZtsxDAnmXX8


Lawrenceville, GA