440 block oil pick up tube threads

[bm02tj]

If you know any gas fitters that work on fireplaces they should have a bushing that might add 1/8 in or less

 

[lewtot184]

Curious. How did you get to this point? Post a pic of the end of the pickup and a pic of it “to far” into the block.

The factory PU is a straight thread. The tube is soft and likely the cause of any slop. If the first couple threads of the PU look rolled, that likely the problem. Seems unlikely the block threads gave-it-up unless something went really wrong.

I’d also guess that a little PU thread clean up, and chase it with a die you could’ve simply get it tight with one more PU rotation.

I have a set of 3/8" straight pipe dies just for playing with the pick up.

 

[not so famous bob]

You can always tap it to 1/2", then use a 1/2"x3/8" bush to put your original pickup back in. IIWM, i'd use a harder set threadlock on the 1/2" threads.

not terrible idea , but if I were going to drill it and tapp it for 1/2'' , I`d sure buy a 1/2'' pick up and put in it .
I built an extended pick up for a hemi , with a very deep alum. pan , got the length/drop figured out , bolted the pan to on side , and heated and bent the pick up for perfection , ran in a race car for 14 yrs , still in the engine to this day !!!

 

[1KoolBee]

why not just use the 1/2" pick up tube.

Agreed, much safer than drilling for helicoil.

 

[Splangj]

My car fell off blocks under the k frame, and a block dented my oil pan. It cracked my oil pickup female thread in the block. The pickup tube was loose. I wrapped the male thread with Teflon tape. Still has 60 lbs at idle.

 

[sr71mopar]

Tap it a little deeper and adjust the pickup.

 

[road]

Tap it a little deeper and adjust the pickup.

402 pan. tube would need a few adjustments (bends)

 

[1danc]

No such thing as Heli-Coil NPT anything as far as I know but, on the other hand, Timesert has a kit PN#0318 to repair a 3/8"NPT hole. It is expensive for the casual user, and the larger hole can be a bitch drilling by hand. I tried to get the drill size, but it is not listed. It would be cheaper to get a 1/2"NPT pickup and attempt to drill and tap for that. The threads on the 3/8" pickup might be worn (in addition to the worn hole threads), and a new 3/8" pickup with red or green Loctite might work too. I like using green Loctite for sleeves as it dries much faster. I used it once on a sleeve for a Ford 390, and it locked up halfway into the block.

Just got a call back for the drill size for the 3/8"NPT kit, and it is 23/32" (0.71878"). That is a lot of torque for a drill and your hands.

 

[1danc]

anything you want is available, you can make the tube shorter if you need, trim and run a die on , add a few threads ? If you'd leave it 1/2" it would work just fine as well ! Main concern is to know what went wrong in the first place