Oil Pump Pickup Tube Worry

Tall T

Well-known Member
Seems like I've always got something to worry about.
When I did an oil change on the Jubilee a few weeks ago I noticed something that I didn't mention then but have been thinking about ever since.

With plug out I reached up with a finger and there was a lot of wiggle in the pickup tube. Thinking that it was probably like other pumps where the two bolt flange that holds the tube to the pump is tight as it should be, but there is still a little free play in the tube itself. . . I stopped worrying about it till now.

I'm hoping that this is the case here so I don't have to drop the pan.

My oil pressure never drops below 45.

Is the body of the pump where the tube connects low enough that it is submerged in oil?

Thanks,
TT
 
(quoted from post at 19:26:52 06/23/14) Seems like I've always got something to worry about.
When I did an oil change on the Jubilee a few weeks ago I noticed something that I didn't mention then but have been thinking about ever since.

With plug out I reached up with a finger and there was a lot of wiggle in the pickup tube. Thinking that it was probably like other pumps where the two bolt flange that holds the tube to the pump
is tight as it should be, but there is still a little free play in the tube itself.

I'm hoping that this is the case here so I don't have to drop the pan.

My oil pressure never drops below 45.

Is the body of the pump where the tube connects low enough that it is submerged in oil?

Thanks,
TT
all, you need some serious "stuff" to worry about, but I won't wish it on you. :) 45 pounds!!!! Stop worrying, NOW! No that connection point is well above the oil level.
 

Sounds like your intuition is in fine shape and you're reading me like a book. :D My mom was a worry wort too.

In my post above I screwed up the last sentence and just corrected it.

"Thinking that it was probably like other pumps where the two bolt flange that holds the tube to the pump is tight as it should be, but there is still a little free play in the tube itself. . . I stopped worrying about it till now."

So was I right . . . that free play in the tube is normal like other engines?

Thanks much,
Terry
 
So was I right . . . that free play in the tube is normal like other engines?
I would worry about the free play on an N.
If you've got 45 PSI and it stays there, I wouldn't worry a bit!
 
There's NO "free play" in that tube 'cuz it's soldered/brazed into the oil pump.

But it's LONGGG and being able to wiggle it/flex it at it's extremity is probably normal.

And, if it WERE loose at the pump, the air/suction leak would be ABOVE the oil level in the pan.
 

They all can be moved if you push on them hard enough. If its resist and has a very small springy feeling and returns home its OK... If it has a loose feeling and will rock a little side to side then you need to go after it... That being said I don't remember if your tractor has a extra mounting tab on the pick up tube are if it just connects to the pump like a N.....

I don't remember anyone haveing a issue with a loose pick up tube on a OHV ford engine and never seen it my self... A N is a different story...
 
It's not a case of pushing hard on a springy pipe, there is actual 1/8" of free wiggle with one finger on end of the tube.
I wouldn't logically be pushing hard on a light tube and expecting it to not flex.

I do not think that the tube is "soldered" to the pump casting -- that doesn't make sense..
It probably has a soldered collar on the tube above the 2-bolt mounting flange.

As I said, pickup tubes in other engines are kind of free floating or pivoting where you can actually lift up the intake screen on the end of the tube and it falls to a point then stops in the hanging position. My 235 Chev engine is like that. If you are holding the pump upside down the screen and pipe falls toward the pump -- upside right and the screen and tube drops to the hanging position.

I looked at that Jube oil pump rebuild on YouTube but he doesn't say anything about that and I can't tell by looking.

the crux of the matter is this.
There is a two bolt flange holding the tube up to the pump.
Is the tube immovable at that point. The sucking air theory at that point doesn't hold water either.

Thanks,
Terry
 
(quoted from post at 10:17:41 06/24/14) It's not a case of pushing hard on a springy pipe, there is actual 1/8" of free wiggle with one finger on end of the tube.
I wouldn't logically be pushing hard on a light tube and expecting it to not flex.

I do not think that the tube is "soldered" to the pump casting -- that doesn't make sense..
It probably has a soldered collar on the tube above the 2-bolt mounting flange.

As I said, pickup tubes in other engines are kind of free floating or pivoting where you can actually lift up the intake screen on the end of the tube and it falls to a point then stops in the hanging position. My 235 Chev engine is like that. If you are holding the pump upside down the screen and pipe falls toward the pump -- upside right and the screen and tube drops to the hanging position.

I looked at that Jube oil pump rebuild on YouTube but he doesn't say anything about that and I can't tell by looking.

the crux of the matter is this.
There is a two bolt flange holding the tube up to the pump.
Is the tube immovable at that point. The sucking air theory at that point doesn't hold water either.

Thanks,
Terry
ell, Tall, you are posting on the 9N/2N/8N forum, not Ford forum, so I just now realized that you are addressing the NAA engine! Therefore, your oil pump to pickup tube may actually be slightly submerged into pan oil level. Here is a picture of tube attachment.


 
Ah thanks.

Why I first asked if that point was submerged was that I was thinking that if the tube to pump flange was loose and shouldn't be, then my not experiencing any oil pressure loss would be explained by the submersion.

Hate to have to pull the pan and then find those two bolts ARE fine; i.e., tight and that the tube itself is sound and naturally free to move a little where it enters the flange.

T

PS.
I've never been sure which forum the NAA belongs on. It isn't included in the ford 9N, 2N, 8N forum . . . but is an Naa.
so where DO I belong? :D
 

The pumps on those in good condition are robust and can over come a leak on the suction side... BY What you are stating I would drop the pan I don't think they come any EZ'er.... My worst worry would be the retain bolts are loose.... They nailed the pick up tube to the mounting plate some how a tudder... Look foreword to what you find... And NO I don't think they float are swivel...
 
Same here. . . my worry has always been those two bolts.

I looked under yesterday to double check and E-Zee is right, plus with a cast pan (which I have never had before) no pan flange straightening or hole flattening to labor over.

Now If I was to get real neurotic, which I have in this case, I'd think that whoever bolted that flange onto the pump and didn't tighten the bolts enough or use proper lock washers, could have under-tightened critical nuts elsewhere like rod nuts during a rebuild.

Here's a video of the Jube pump and the Old #27 guy putting it together. The pickup tube is FIXED to the flange! Grrr.
So my flange is loose and I have to take the pan off.
well at least I can take it down to the shop when I get the tires back on as right now it is one level up in my front yard.

@ 1 minute into video.
https://www.youtube.com/watch?v=w9OB_iwkWF8
 

Just realized something else too. When I changed the oil I wondered how the edge of the intake screen had gotten damaged on one edge. I inverted it so that the good end was tight to the plug.

The vibrational movement of the pickup tube assembly is probably what did the screen in.

Terry
 
well....2 schools of thought here.
I agree, if you keep looking for problems...one will find you.
(the old 'if it ain't broke, don't fix it'....)
But, on the other hand....
Tractors are my hobby, not a time clock job, so I enjoy the puttering.
I pull the oilpan on every tractor I buy.
Take a look in there, check this and that, and get 50 years of slime out of the bottom end.
And when I put the pan back on, I KNOW things are ok.
peace of mind ya know......
 

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