Dull Engine Knock at Idle?

[PatS....]

I noticed when I was putting on the oil pan a while back that the oil tube was touching the pan...had to "massage" the pan a bit to provide clearance.

Then I came across this from one of those little booklets Chrysler put out.

I thought I would post it just in case someone is mystified by another strange noise coming from their flatty.

[brian hood]

Hey,

I have a flat 6 with this sound. I would have never thought of that. I have 40 to 45 lbs of oil pressure at idle and it was a professional rebuild. It sorta of worried me, but I wonder, if I leave it alone will it hurt anything?

Brian

[captden29]

i have a leak coming from the oil pump. is it easy to remove and can i just make a new gasket from gasket paper and slide it back in? i never took one of these out before . dennis

[Norm's Coupe]

Actually, the shaft is only flat on one side. So.......when you put the oil pump back in, it won't go all the way in unless it's lined up. So, you shouldn't have a problem finding the right position for the slot to line up with the distributor slot.

[Don Coatney]

Actually' date=' the shaft is only flat on one side. So.......when you put the oil pump back in, it won't go all the way in unless it's lined up. So, you shouldn't have a problem finding the right position for the slot to line up with the distributor slot.[/quote']

Norm;

I dont think what you are suggesting will work. Problem is the distributor will spin as the oil pump is removed (the spinning is the drive gear coming out of contact with the cam gear as they are spiral cut gears). Then the distributor will not be in position when the oil pump is re-installed.

The only way to do it is as follows. Prior to removing the oil pump observe the position of the distributor rotor. Then remove the distributor. Then remove the oil pump and observe the position of the distributor slot in the end of the shaft. When you re-install the oil pump try and position exactly as you removed it with the slot in the same location. Install one bolt loosley to hold the oil pump in place. Then position the distributor rotor in the same position as it was removed. If it lines up you are good to go. If it does not then once again remove the oil pump and reposition the slot. Try again until you have it right. Once it is positioned correctly snug everything up and re-set the engine timing.

[Norm's Coupe]

Don,

It worked for me when we were putting my engine back together after the rebuild. Put the distributor in first, then the oil pump lined up with it. The oil pump shaft will spin freely before it's in the distributor shaft slot to line itself up.

[Don Coatney]

Don' date='

It worked for me when we were putting my engine back together after the rebuild. Put the distributor in first, then the oil pump lined up with it. The oil pump shaft will spin freely before it's in the distributor shaft slot to line itself up.

Good for you Norm.

Did you personally do the oil pump distributor allignment? I personally installed my oil pump with my engine upside down on my bench and I got it right using the system I described. Who is "we"?

[Norm's Coupe]

Good for you Norm.

Did you personally do the oil pump distributor allignment? I personally installed my oil pump with my engine upside down on my bench and I got it right using the system I described. Who is "we"?

We is the professional mechanic friend, my brother in law and I. I said we because I was standing right next to him at the time. I told him basically what you said (which is also in the service manual) at the time. He then said it would line itself up and it did. I guess when you've done things like that so many times in your lifetime, it all becomes second nature and you don't really need the books.

[Young Ed]

That happened to us when we did a rering/bearing job to the 54 ply. Had to drop the pan again and fix that pipe. I think we took it off and swapped it end for end. Could have just bent it a little too that was a long time ago.