old-tank Posted November 24, 2013 Share Posted November 24, 2013 Has anyone come up with a good way to block off the Buick 322 intake exhaust crossover. Gaskets used to be available for racing purposes. I think the currently available fuel is already too volatile and does not need to be heated...and I am tired of touching up the paint that is burned off.Willie Link to comment Share on other sites More sharing options...
Paul Falabella Posted November 25, 2013 Share Posted November 25, 2013 Willie, Where is the paint wearing off? One of my winter projects is the valley crankcase filter replacement and while it's off, paint the intake manifold.Paul Link to comment Share on other sites More sharing options...
60FlatTop Posted November 25, 2013 Share Posted November 25, 2013 Somewhere back in time I remember rolling up balls of aluminum foil to plug that passage.Bernie Link to comment Share on other sites More sharing options...
old-tank Posted November 25, 2013 Author Share Posted November 25, 2013 Paul, you will see where the exhaust goes when you get it off. The paint burning is probably not an issue unless you do summer driving at 70 mph for 10 hours a day.Bernie, do you remember if that fix lasted (again, 70 mph for 10 hours a day)?Believe it or not it is even too cold here with temps in the 30's (*F) to tinker.Willie Link to comment Share on other sites More sharing options...
60FlatTop Posted November 25, 2013 Share Posted November 25, 2013 Wow! 700 miles of macadam road, all connected. I live a block from the canal that goes all the way through the state and it ain't that long. My roads are called trails: http://en.wikipedia.org/wiki/New_York_State_Route_104, http://en.wikipedia.org/wiki/U.S._Route_20_in_New_York, http://en.wikipedia.org/wiki/New_York_State_Route_31, and http://en.wikipedia.org/wiki/New_York_State_Route_19.Actually the nailhead intake gaskets have a smaller round hole on that crossover port. Bigger balls will make it OK.It was 30 here, but I had the heat on in the garage and could tinker. I just couldn't go out behind and tinkle, had to walk all the way back to the house.Bernie Link to comment Share on other sites More sharing options...
Fr. Buick Posted November 26, 2013 Share Posted November 26, 2013 I had connections to a foundry and poured hot aluminum into mine... Link to comment Share on other sites More sharing options...
old-tank Posted December 5, 2013 Author Share Posted December 5, 2013 No foundry available, so I stuffed the intake with aluminum foil, and just to make sure:steel washers and steel pop-rivets.Willie Link to comment Share on other sites More sharing options...
old-tank Posted January 22, 2014 Author Share Posted January 22, 2014 Update: before someone else does this, the jury is still out. Even with outside temps in the 70's the driveablility is crap. Vigorous acceleration from a stop in drive, I get a severe lean bog...once the engine speed is up (and resultant increased airflow) it runs well. I'm going to leave it in place until the temps are in the 90's+. It probably will solve the manifold paint burning issues and carburetor percolation, but I don't want driveability problems.Fuel injection like Ben did is getting closer...Willie Link to comment Share on other sites More sharing options...
60FlatTop Posted January 23, 2014 Share Posted January 23, 2014 I calculated the air density difference between an operating heat stove and just cool air at 40 degrees. The car runs about 30% lean on a cold day. When I was 25 and driving in the summer I put the aluminum foil balls in. Forty years later the original configuration works fine.Bernie Link to comment Share on other sites More sharing options...
old-tank Posted April 27, 2014 Author Share Posted April 27, 2014 Update: before someone else does this, the jury is still out. Even with outside temps in the 70's the driveablility is crap. Vigorous acceleration from a stop in drive, I get a severe lean bog...once the engine speed is up (and resultant increased airflow) it runs well. I'm going to leave it in place until the temps are in the 90's+. It probably will solve the manifold paint burning issues and carburetor percolation, but I don't want driveability problems.Fuel injection like Ben did is getting closer...Willie Update: Driveability is essentially normal (as normal as it gets with this crap for fuel). Maybe the available fuel is matching the season or the intake valves on the replacement cylinder head finally have carbon build up to match the other. Anyhow driving in 95* weather with the a/c running I get the usual vapor lock unless I run the electric fuel pump, but no percolation after parking and of course no paint blistering on the intake manifold. If it continues to do this well, I will leave it as is and maybe consider blocking on my other nailheads. Gas mileage is the same, but WOT for high speed passing seems faster with a definite 'kick' when the secondaries open (I wasn't watching, but the GPS recorded 95 mph:eek:)...maybe that's why racers blocked it off, to get a colder, denser charge. Gotta go....take it for another run Willie Link to comment Share on other sites More sharing options...
1956century Posted April 28, 2014 Share Posted April 28, 2014 I tapped and blocked off the ports with a 7/16 plugs for what it's worth. Link to comment Share on other sites More sharing options...
JohnD1956 Posted April 28, 2014 Share Posted April 28, 2014 I tapped and blocked off the ports with a 7/16 plugs for what it's worth.I think Willie was talking about the ports between the head and the intake. Are you talking about the ports between the intake and the carb? Link to comment Share on other sites More sharing options...
1956century Posted April 28, 2014 Share Posted April 28, 2014 Yes, I was referring to the ports between the intake and carb. Link to comment Share on other sites More sharing options...
old-tank Posted December 25, 2014 Author Share Posted December 25, 2014 Update: don't use my method for blocking. It seems the pop rivets formed an incomplete seal and some exhaust gases (that contained water vapor) got past and then condensed in the intake manifold. There was a black ugly wet mess. A complete seal would probably work, but for now it is back to stock.Willie Link to comment Share on other sites More sharing options...
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