fuel pump pushrod question

[Old Crow]

hi.
A customer brought me a '68 Chrysler 300 that won't run. Not getting any gas to the carb.
He and his buddy have already changed out the fuel pump and the carb.
We started out by pulling the tank at his request to see how bad it was. The rubber hose from the sender to the body was rotted out and the float on the sender was full of fuel. Got all that stuff fixed and still no fuel out of the pump. Pulled the pump pushrod and found it had worn 1/4" off the end.
Replaced that, and it still won't pump. We even put the old pump on to see if it would pump, but nothing.
I've about decided that the bad pushrod has worn the cam lobe some. You can hold the pushrod against the cam while cranking the motor, and it still moves in and out, but I can't find a spec anywhere to know if it's enough.
Anyone know what the stroke length of the fuel pump pushrod on a 440 is supposed to be?

 

[Banzaiii67]

Pretty sure, it's supposed to be 3.25"

 

[eagleone1983]

Banzaiii67, he's asking about the stroke length not the length of the pushrod itself. I know I've seen this question answered before so somebody will be on here to answer Old Crow. I would think you could see in there and see if the cam is worn.

 

[63RedFury]

New fuel pump and pump rod.So have you tried to pump it out of a jar or gas can instead of out of the cars tank? May have to go to a electric pump.

 

[Old Crow]

Yeah, we were trying to pump gas out of a can with a hose hooked up to the pump. The owner is the original owner and he wants to keep it stock if possible. I'm afaid if it flattened the lobe on the cam that the motor will have to come apart because all that metal had to go somewhere. Can't really see it on the dipstick, but surely the filter didn't catch it all.

 

[eagleone1983]

I'd drain the oil and put a light to it, I'd think a wiped cam lobe would be reflecting back at ya in the drain pan

 

[Old Crow]

I pulled the dipstick and it looks like the customer changed the oil while he was changing the fuel pump. By the look of the oil it's never actually run with this oil in it. There was also a receipt for oil and a filter in the trunk with the old fuel pump in the new pump box.
I'm guessing the cheapest way to go is going to be an electric pump and run it until it starts to knock(if it does). I'd hate to go to the trouble of changing the cam and have the bearings give up in the next 500 miles.
Wonder how many gallons per hour capacity I need on an electric pump?

 

[Old Crow]

Customer came by today to check on the car. OK'd an electric pump and then wanted to pay his bill up to date. He's going in the hospital tomorrow for a round of chemo and said, "just in case I don't come out". Getting old(and cancer) sucks.

Now, I've got a choice of 35 gallons an hour or 97 gallons an hour. Surely the 35 gallon pump ought to run this thing.

 

[Cranky]

Grabbed a brand new cam and it gave a reading of .290" stroke. The 35 should run the car since it's not a high performance setup, right?

 

[Old Crow]

Not high performance in the way you normally would think about it. Just pushing 6000 lbs of car and cargo down the road at 70-80 mph. Pretty sure he doesn't care if the car won't turn 12's.