uh ohhhh

[Ironmike]

Changed my oil couple days ago and today notice a drop of oil on the floor. And a drop forming right under the drain plug.

It's a 15 year old Milodon pan that has worked great. Until now. Finally deduced it's a small chip out of the weld just below the drain bung. Maybe when I took it out it cracked. Very tiny seepage.

So drained all the oil, have it on jackstands so the front end is tilted pretty high. High enough to empty the back of the pan.

My thoughts were tomorrow, clean the snot out of that area and apply JB Weld.

If anybody has a better idea that's easy, let me know. NOT going to pull the pan and re weld for such a minor seep.

 

[dano]

Are you sure its the weld and not a seal in the bolt? Could also be blown back when driving?

I've used some stuff called Seal All to seal welded gas tanks on the inside. It's thick, out gasses to a thinner clear film and is rated for gasoline so oil would be no big deal.

Seal-All Clear – Eclectic Products

eclecticproducts.com

 

[JDMopar]

Your plan sounds like it will work as long as you get the oil out of the crack. Stick the red straw that comes with brake cleaner right in the crack and blow any oil left back. Hit with a blow nozzle on the air hose and fill it with JD Weld before seepage returns.

 

[Garrett Ellison]

I like Jackie’s plan, but I would be tempted to try it with a couple of quick triggers of flux core… and by quick, I mean one second spats, two seconds off.

 

[Sterling]

The threads stripped out of the drain plug on my Hamburger oil pan in my 70 Dart race car. I drained the oil out all week, and decided to weld a 1/2-20 nut. I just finished welding, when I guess was a combination of race oil and fuel fumes blew out the drain hole with a bang and coated my welding helmet. Couldn't see out of it , and could not get from under the car fast enough. It did work, but I would not suggest welding in the car

 

[JDMopar]

The threads stripped out of the drain plug on my Hamburger oil pan in my 70 Dart race car. I drained the oil out all week, and decided to weld a 1/2-20 nut. I just finished welding, when I guess was a combination of race oil and fuel fumes blew out the drain hole with a bang and coated my welding helmet. Couldn't see out of it , and could not get from under the car fast enough. It did work, but I would not suggest welding in the car

If that'd been me....my underwear woulda been messier than the welding helmet!

 

[Inertia]

The threads stripped out of the drain plug on my Hamburger oil pan in my 70 Dart race car. I drained the oil out all week, and decided to weld a 1/2-20 nut. I just finished welding, when I guess was a combination of race oil and fuel fumes blew out the drain hole with a bang and coated my welding helmet. Couldn't see out of it , and could not get from under the car fast enough. It did work, but I would not suggest welding in the car

When we weld a pan in car, we have the oil caps etc pulled and open, drain plug out, then blow compressed air thru the crankcase before and during welding to ventilate any vapors.

 

[Garrett Ellison]

That would be the proper way to do it! Drain and save the oil into a clean container for reuse and let it drip overnight before cleaning and tacking back up over the cracked weld.

 

[dano]

I watched an old guy weld a used fuel tank, he used a shop vac hose in the hole to evacuate the fumes and only welded a small amount at a time. He also did it in a big shop near a large open bay door so the fumes could build inside.

 

[mygasser]

The threads stripped out of the drain plug on my Hamburger oil pan in my 70 Dart race car. I drained the oil out all week, and decided to weld a 1/2-20 nut. I just finished welding, when I guess was a combination of race oil and fuel fumes blew out the drain hole with a bang and coated my welding helmet. Couldn't see out of it , and could not get from under the car fast enough. It did work, but I would not suggest welding in the car

i dented the hood on a car once when the oil fill cap blew off while welding a rusty pinhole in the oil pan. it didn't help that the motor was hot either
neil.

 

[mygasser]

I watched an old guy weld a used fuel tank, he used a shop vac hose in the hole to evacuate the fumes and only welded a small amount at a time. He also did it in a big shop near a large open bay door so the fumes could build inside.

i've read to run a pipe from your exhaust into the tank for a few minutes. it completely purges the tank of flammable gasses.
neil.

 

[Dartswinger70]

Nothing a little caulk wont fix...

 

[dano]

Nothing a little caulk wont fix...

Flex Seal! If it seals the screen door in the floor of your row boat it'll fix an oil pan leak!

 

[jeff alder]

If it's that minor and on a weld a good peen might do the trick.

 

[Inertia]

i've read to run a pipe from your exhaust into the tank for a few minutes. it completely purges the tank of flammable gasses.
neil.

Yes, after washing the tank with water, - we run a exhaust hose from a running vehicle into the filler tube hole or gauge sender hole with the other hole as vent.

Exhaust gas is an extinguisher, ( if all cylinders are firing, that's another story) so we run exhaust thru the tank for several minutes to purge it with hot extinguisher, then weld away , - while continuing to pump exhaust thru tank.

I was plenty scared when my mentor did it, but back then it was not uncommon.
I finally got comfortable doing it .

If you fill a bag with exhaust gas, try to light a Bic inside the bag.

No oxygen .

 

[mygasser]

Yes, after washing the tank with water, - we run a exhaust hose from a running vehicle into the filler tube hole or gauge sender hole with the other hole as vent.

Exhaust gas is an extinguisher, ( if all cylinders are firing, that's another story) so we run exhaust thru the tank for several minutes to purge it with hot extinguisher, then weld away , - while continuing to pump exhaust thru tank.

I was plenty scared when my mentor did it, but back then it was not uncommon.
I finally got comfortable doing it .

If you fill a bag with exhaust gas, try to light a Bic inside the bag.

No oxygen .

yes, first time i did it it was still in the days of oxy/acetaline welding so straight in with a hot flame, lol.
neil.

 

[Dartswinger70]

I remember brazing a hole in a header collector with a torch and a coat hanger...its what Uncle Tony would do...

 

[mygasser]

I remember brazing a hole in a header collector with a torch and a coat hanger...its what Uncle Tony would do...

i learnt to gas weld with coat hangers back in the day, my dad used to get bags of them from the local charity shops
oh how i loved working out the distortion in bodywork after gas welding repair panels in place, good times
neil.

 

[65TerrorCuda]

i learnt to gas weld with coat hangers back in the day, my dad used to get bags of them from the local charity shops
oh how i loved working out the distortion in bodywork after gas welding repair panels in place, good times
neil.

I was gas welding trunk lid holes shut in an MG and saw light inside. Carpet fire, put out with my bare hand, melted carpet on my hand. I recommend gloves

 

[mygasser]

I was gas welding trunk lid holes shut in an MG and saw light inside. Carpet fire, put out with my bare hand, melted carpet on my hand. I recommend gloves

we sure do some crazy spur of the moment **** sometimes.
neil.

 

[Inertia]

The first time I welded a gas tank, I taped the torch to the end of one of our in-ground fuel tank dipsticks, about 10 - 12 feet long, passed that over the outlet vent a few times, no bang, lol

 

[Ironmike]

If it's that minor and on a weld a good peen might do the trick.

Thought about that. I can't even SEE the crack, it's so small. It's right at the bottom of the drain hole bung. At the weld. Drained it yesterday, and no drips today. I put some cotton rope inside and pulled it back to the bung with a bent coat hanger. Plan on it soaking all night and tomorrow, Brake clean and JB. I think I'm gonna really push the JB in and then give it a good coat.

Can't make it too thick or the plug won't go in flush with the bung. Might even have to use 2 copper/brass washers, to keep the plug head away from the weld.

I'm pretty good with a MIG, but man I don't want to make it worse. I mean, after a nice ride it left 2 small drips in 24 hours. But I can't STAND leaks!

Honest to God, it's always something

 

[68Bee]

I watched an old guy weld a used fuel tank, he used a shop vac hose in the hole to evacuate the fumes and only welded a small amount at a time. He also did it in a big shop near a large open bay door so the fumes could build inside.

lol, used to that stuff; but I used a hose feeding exhaust from another running car to fill tank with no oxygen. A little flame outside the tank, quit flaming soon after. Today I shudder at what I used to do!

 

[Inertia]

Maybe jacking up one side will help keep oil away from bung .

 

[MOPAROFFICIAL]

i've read to run a pipe from your exhaust into the tank for a few minutes. it completely purges the tank of flammable gasses.
neil.

That and a road flare