got Offenhauser 6019DP today, have questions
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got Offenhauser 6019DP today, have questions
Got the 6019DP manifold today from Jegs. A little disappointed in the finish work but I can make it work. I think I read here somewhere that the carb primaries go to the inboard side of the engine in order to feed the lower ports of the manifold, Correct? Also, there is cast into the bottom side of the manifold "Not for use with water plate". I am using EFI exhaust manifolds and was planing on making a water plate to heat the lower ports of the manifold. Is there some reason that I shouldn't? The sticky above makes a lot of good points about why you should make a plate when using EFI manifolds. Thanks for any help you guys can give.
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From: Boise, Idaho
Hello!
It says that on the bottom? How bizarre. (Would you mind snapping a picture of it?)
I am curious why it would say that, since almost everyone goes that route, and I've never heard of anyone having any problems with it.
Otherwise, the primaries will go toward the engine (pointing toward the runners) and the secondaries will point away. The primaries will feed down the smaller top ports and the secondaries down into into the lower, larger ports.
It says that on the bottom? How bizarre. (Would you mind snapping a picture of it?)
I am curious why it would say that, since almost everyone goes that route, and I've never heard of anyone having any problems with it.
Otherwise, the primaries will go toward the engine (pointing toward the runners) and the secondaries will point away. The primaries will feed down the smaller top ports and the secondaries down into into the lower, larger ports.
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I'll try to post a pic tomorrow if I can get a little help from my wife. I suffer from "Old fart syndrome" and am not to good with this computer thing. On this manifold the primary carb ports (nearest the valve cover) do go down to the smaller ports, but they are at the bottom of the runners as pictured on the Summit web sight.
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Oops, I said that backwards. The primaries run along the smaller bottom passages (the smaller passages increase velocity and then torque), and the secondaries run through the larger upper passages for increased flow. (Got the top/bottom mixed up)
Either way though, the primaries go toward the engine/valve cover/runners.
Either way though, the primaries go toward the engine/valve cover/runners.
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OK here is a pic. It's not real clear. Hope you can see it. I found a site at Offenhauser.co said that some manifolds made before 2015 may have porosity in the heat box area that may let coolant into the runners and to test those manifolds you can turn the manifold upside down and pour water into the heat box area and let it set to see if it leak trough. I did that overnight and it's OK.
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Boy these things are hard to get. I've seen here on this forum that people were haveing a hard time getting these and I gave up on Summit as they just keep postponing the shipping date and last Friday I found one at JEGS. They said they had 4. Ordered mine immediately and apparently so did 3 other people now they have a shipping date of Sep of this year. Wonder why there has been such a run on these?
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In an attempt to help any and all, see if these [1 DP and 1 open style] are still available? They are listed on another forum.
https://fordsix.com/viewtopic.php?f=87&t=76722
https://fordsix.com/viewtopic.php?f=87&t=76701
https://fordsix.com/viewtopic.php?f=87&t=76722
https://fordsix.com/viewtopic.php?f=87&t=76701
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From: Boise, Idaho
Thanks for the pic. I know mine definitely doesn't have that. How interesting.
That'd make sense on the porosity, but that just seems strange to me that it could be so porous that it would soak through 1/4" of aluminum.
That'd make sense on the porosity, but that just seems strange to me that it could be so porous that it would soak through 1/4" of aluminum.
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I suspect that it is Chinese as it was wrapped in Chinese news paper and it was in that poor quality light brown cardboard box. Really thought about a Cilfford intake but like the concept of the duel port for what I going to be doing with this truck.
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What about coating the inner heat plate area with a sealer, eliminating the possibility of such a thing happening?
Do you all think that RTV would adhere properly to the aluminum and not eventually peel off, clogging things up?
Any other suggestions for a proper coolant barrier?
Do you all think that RTV would adhere properly to the aluminum and not eventually peel off, clogging things up?
Any other suggestions for a proper coolant barrier?
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Well, like I said mine tested ok. They said the problem was with some of the ones made before 2005 and mine has a date of 3 24 17. Should be no problem. But I think that when I make my water plate I will pressure test it using the holes that I will drill and tap in the plate. Bolt the plate to the manifold with a gasket in place and put a pressure gauge in one hole and a air fitting in the other. If it doesn't pass then I will send it back. But like I said I gravity tested it by just turning it upside down and filling it with water and it didn't leak overnight so I think it is OK. That notice of "not for use with water plate" may have be left over from when they were having problem.
