I ordered both the airtex pump and an electric 6+/- ground pump and the electric one got here first so I installed it and it works great. Filled the carb bowl up in seconds and we were off.
Well that's interesting. I ordered one last night so we'll see if it works. I didn't install the ones that's on there now, the previous sheister (oops I mean seller) installed it.
We'll see what the new one looks like!
The pump is the correct airtex 73201.
I notice that when I have the pump in my hand and push down on the arm it moves 1/2" before it engages and becomes tough to push, acting on the diaphragm... is this normal for these pumps? It seems to slide up and down on the pivot pin that runs through the pump body... how much slop in the mechanism is there in one of these pumps?
Nothing, its not even trying to pump. If I take it off the car and pump it manually it works but as soon as its on the car no dice.
Fuel lines are not blocked, valves in the fuel pump are working. The sediment bowl wouldn't fill until I disconnected the fuel line at the carb and sucked some gas into it. Never had this much trouble with a mechanical pump before.
Ok I've got a real stumper here. This 48 Plymouth I've got has had the original mechanical fuel pump replaced with a new one but it won't pump.
I took the pump off and worked the lever and it works, you can feel it sucking and pumping. The arm that rides on the cam lobe has a shiney spot so it is making contact. When I pull the pump off and put it back on I can feel it engage the lobe. I've felt the camshaft lobe with my finger and its fine.
There are no fuel line leaks or blockages I can suck fuel up the carb no problem but not blow it back through the pump. The pump itself is not leaking anywhere.
I'm really at a loss here...
I was doing some poking around on the net and ran across some '49-'50 pics of stock car/nascar and found these Plymouths. Got me wondering how well these little flathead 6's did against the other makes of the era...
I don't know much about nascar but it seams like it would be fun to recreate a racer for a car show... something different than the blinged out hotrods you typically see...
You could clean it off real good and then dust it with some corn starch to see where the leak is staring at... sometimes a bit messy but it always points to the leak.
Somebody once told me that braided wire is used because its more flexible and won't break as easy... fact of fiction you be the judge! When you think about it solid wire stays in whatever shape you bend it but the other kind won't do that as well.
I can't imagine there would be much different in conductivity as the conductors are all touching each other and would seem to behave as a solid wire... At any rate I'm glad they make it... imagine trying to work with a solid wire OO battery cable!
Did the flathead combustion chamber shape change much over the years? I've read that the later 50's heads had "the best" chamber shape... true of guff?
I'm looking to pick up a 230 down the road and mildly build it up a bit... trying to figure out the best engine to start with in so I can be on the lookout...
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