440 Oil Pump Drive Install Help Please

[bobs66440]

I am trying to install my oil pump drive. As I understand it, with the #1 piston at tdc the slot should be aligned parallel with the cam centerline. As you can see, it's off a little. I checked my running 440 and it's exactly aligned.

Could the cam timing be off in relation to the crank?

Thanks!  




The book says it should be aligned, and my running engine is aligned. Also, with everything at TDC on the running engine, the vacuum advance on the distributor is pointing roughly at the #1 cylinder when the rotor is pointing at the #1 plug on the cap, but on this engine it would be pointing at the oil filter (more toward the front of the engine) if you follow me (sorry, just learning and my descriptions may be vague). Why would there be differences in the two engines?

[green69rt]

Look for simple things first.  Is the oil pump shaft seated all the way in the rotor or did something get in the socket (sludge, etc.) that's keeping the shaft from seating?   You don't want to pound on anything but look around with a light or pick with a long piece of coathanger wire in the socket.  Did you put a new oil pump in?

[bobs66440]

Ok, I got it. I was able to pull the gear and drop it back in aligned. I couldn't do it before but realized the hex in the pump had to turn a little to allow it to drop in 1 tooth over. Thanks 

[FLG]

Just for future reference, it does and it dosnt matter what direction you put it..as long as the rotor is pointed to the spark plug wire that goes to the #1 cylinder at TDC. Usually where they put it stock is fine, but sometimes (like in my case) the distributor clip for the cap was bumping into my fabbed valve cover so we had to move the gear a bit to be able to advance the distributor more.

[bobs66440]

Just for future reference, it does and it dosnt matter what direction you put it..as long as the rotor is pointed to the spark plug wire that goes to the #1 cylinder at TDC. Usually where they put it stock is fine, but sometimes (like in my case) the distributor clip for the cap was bumping into my fabbed valve cover so we had to move the gear a bit to be able to advance the distributor more.

Got it, thanks! 

[Budnicks]

Just for future reference, it does and it dosnt matter what direction you put it..as long as the rotor is pointed to the spark plug wire that goes to the #1 cylinder at TDC. Usually where they put it stock is fine, but sometimes (like in my case) the distributor clip for the cap was bumping into my fabbed valve cover so we had to move the gear a bit to be able to advance the distributor more.

YEP perfect explanation....

[FLG]

Forgot to mention make sure it's tdc on the compression stroke.

[Fitz73Chrgr]

Old thread dig up!

What is the proper orientation of the slot on top of the oil pump drive in a '71 360 when #1 is at TDC on the compression stroke?  New build.

[John_Kunkel]

The slot is aimed to the number one cylinder intake bolt.