Oil tank valve leak

cirrus

cirrus

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Hi!

Great forum!

Our oil tank for the furnace has a shut off valve on it (bottom of tank) that has a slow drip to it from the valve stem which we catch in a small container. I'd like to fix it but I'm wondering how is this done? Seems that the oil left in the tank (there is 1/8 tank left) needs to be drained/siphoned out. Does anyone know how this would be done?

TIA!!
 
Thanks for the reply....yea already tried that...still leaks. I probably need to remove the whole stem assembly and replace the washer or whatever those type of valves use to seal the unit. Or just replace the whole valve but in either case the oil needs to be drained I guess.
 
valve

Turn the valve off. Remove the packing nut. If there is a brass "follower" bushing under it, lift that also. Install additional packing, replace the follower, and then tighten the nut.
 
HJ,

I've never replaced the packing material just the washers....so I was thinking I had to remove the whole cartridge/stem. But thinking about it I can just take off that packing nut and still have the valve closed. I'll try that this weekend for sure! Thanks!
 
Just try tightening it a little first. Only repack it if that doesn't work.
 
There is a way to change out an oil tank valve without draining the oil from the tank... even with a full tank. It's a two man job, requires some skill, and there's a risk of damaging the tank if not done right but it can be done.

But try what has been suggested here. It should take care of it.
 
. It's a two man job, requires some skill,
Click to expand...

And one guy has to have a real big thumb....LOL! Just kidding.

Thanks guys for the ideas...sounds alot more promising than what I feared!
 
Not to jinx myself...and the tank is almost empty...but I backed off the nut and then retightened it....so far so good..no more leaks!

Thanks everyone!
 
I have the same issue, and oil company wants $4,000 to replace the whole tank. You can see oil pooling in the cap, but leak is super slow. Is there a risk in tightening the nut in the picture? Is it just righty tighty?
valve.jpg
 
PCCT said:
Hi,
Sorry for picking up on an old thread. But, I have the same issue. Did you ever get a reply? Which way does the nut turn to tighten it?
Click to expand...
If it is a packing nut, you would turn clockwise as viewed from below. In other words, as viewed by the photo , you would turn the near side from left to right.

It does not look like a packing nut to me, but I am not familiar with fuel oil valves. Maybe try another photo looking from lower.
 
Have a shop vac? Two people needed. One at the fill outside with the vac and a rag sealing the vac hose with the rag. And unscrewing the valve and the new one. Before the old valve is off the threads Teflon tape the threads and dope pull the valve screw new one on closed. Wear throw away clothes. One drop of oil and you stink and your clothes. Takes multiple washing to get the smell out.
 
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