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By skyhunter - Last Year
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So, I have a C0AE type intake manifold.
Just forward of the plenum there is a threaded hole that has two small holes that go to two separate sides of the forward chambers.
Was this for a choke heater tube? If so, where can I find one. If not, what is it for.
Could also use a supplier for a set of the correct bolts for the intake manifold. Only have the 4 hold downs or clamps. There is an aluminum intake on it now with internal hex cap screws on it and don't know if those would work.
Thanks
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By FORD DEARBORN - Last Year
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That threaded hole forward of the carburetor flange is for a PCV valve. Typically the valve is screwed in to that hole. The two small holes you mentioned are for distributing the crankcase vapors evenly to multiple cylinders. This was to prevent vapors being pulled towards one cylinder thus prematurely fowling a spark plug. Years ago I actually shined a light in that threaded hole and was able to determine one of the small drilled holes entered the right plenum and therefore assumed the other small drilled hole entered the left plenum. Those two small drilled holes were so packed with carbon/crud that I couldn't see if it was a part inserted in the manifold threaded hole or if the manifold casting was drilled during the machining process. This is my observations and thoughts, others may chime in. Hope this helps...........
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By Ted - Last Year
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Starting with the 1958 engines, the choke heater moved to the exhaust manifold.
That particular threaded port is for the PCV valve. There’s two holes within that port so that both planes of the intake manifold share equally thus better distributing the crankcase gases to all the cylinders rather than just four of them. If you look at the port at the rear of the manifold, it too has the two holes below the threads to draw the vacuum from both planes of the intake manifold.
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By FORD DEARBORN - Last Year
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Ted, that's a better explanation for it. I didn't realize the rear vacuum port also had the amall holes, something to check out.
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By skyhunter - Last Year
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Thanks Ted. This engine has no stock exhaust manifolds so I was not sure if they had that same set up as my old 472.
I have an aluminum valley pan with the PCV valve in it so I need to find that 374963-S and put a hose barb to it. But it would have to be small as there is not much room under a 2100 model carb.
Now, where to find one.
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By Ted - Last Year
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Assuming you are running a carb spacer and it’s tall enough, I’ll suggest running the PCV valve hose to the spacer instead of to intake manifold in front of the carb. It’s relatively easy to add a threaded hole for a vacuum port to the carb spacer if there's no port already there. Here are a couple of pics including a 2V carb spacer with a vacuum port already on it.
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By skyhunter - Last Year
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I just saw a T-Bird site that has spacers with a hose fitting.
Just need to get some model clay or playdoh and check the hood gap.
A 59 Edsel does not have much room to give.
Thanks
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By miker - Last Year
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A lightly crumpled ball of tinfoil will work to measure hood clearance too. Virtually no spring back in it, and probably already in the kitchen.
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By skyhunter - Last Year
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miker (2/14/2023)
A lightly crumpled ball of tinfoil will work to measure hood clearance too. Virtually no spring back in it, and probably already in the kitchen.
Ugh. I did that about 8 years ago for my 68 DeVille. I must be losing my mind. (facepalm)
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