Removing stripped oil nut

[dictionary6767]

Ok so the bolt to drain the oil is stripped, it came that way. I've changed the oil twice by just tipping it on it's side but I'd like to change the oil filter to. It's basically rounded, any ideas to get it off? It's time for a oil change I do it every month.

 

[fowler]

On what engine

U can weld a bolt to the plug then u have a good head

I presume u have tried vise grips and the sort

 

[dictionary6767]

It's a yamaha warrior 350cc. Ya tried vise grips etc..... Ill ask around to see about getting a bolt welded on since I don't have a welder.

 

[Poboy kartman]

Go to the auto supply and ask them for their biggest "ease-out" . If you don't know what that is they should. be able to explain it to you if it's not self evident.

 

[itsid]

No need to...
I think it's a mild steel bolt with a copper seal...
just drill a hole and tap a CCW thread in, insert a matching bolt and "overtighten" it,
the original bolt should come loose.

you need a new bolt anyways

'sid

 

[dictionary6767]

Thanks Sid ill give that a try tomorrow night

 

[Poboy kartman]

No need to...
I think it's a mild steel bolt with a copper seal...
just drill a hole and tap a CCW thread in, insert a matching bolt and "overtighten" it,
the original bolt should come loose.

you need a new bolt anyways

'sid

I thought of that right after I posted. I had the idea of a stop nut as well. My problem with it is sourcing the CCW tap and bolt. This is a common enough problem that I may look into a whole set of taps and dies-then I could get long bolts and thread the shoulders.

BTW- PB Blaster ASAP.

Edit: That's basically what an ease out is and does BTW.....

 

[fowler]

Where u going to find a reverse thread tap
And matching bolt
And it won't be cheap

An easy out won't do it
An easy out is good if u snap a bolt on install

If the bolt is still under tension then u will just end up snapping easy outs

If u have taps and dies available

Drill and tap a standard thread
Then put a bolt in there with a nut on it
Tighten the nut against the plug and undo the bolt
The plug may come with it

As far as ease of use, cost, and success rate
Welding a bolt on will always win

 

[dictionary6767]

I do have a cheap hb tap and die set ill try

 

[itsid]

My problem with it is sourcing the CCW tap and bolt.

Where u going to find a reverse thread tap
And matching bolt
And it won't be cheap

Well a single left threaded bolt costs me about 30 ct and a five minute walk. (small hardware store)
the tap is about 4-5Eur. (same store)
It's not too hard to find nor exactly expensive
(That is if you don't buy the handmade in germany stuff or something )
It's harder to find imperial bolts than left threaded ones around here.

'sid

 

[Poboy kartman]

I do have a cheap hb tap and die set ill try

Get some metal expoy repair stuff like JB Quick and put it on the threads. It will improve your chances. A locknut wouldn't hurt either. And fine thread....

Fowler- You can correct on the ease out. The success rate on them isn't great but I have had them work. It really depends on how and why the head is stripped and how tight the bolt is.

Sid- Small hardware stores are practically extinct here. I did see a reverse tap in one once and it was like $40.

 

[firemanjim]

Go to harbor freight and buy the easy out set. If that dont work, use a left hand coarse thread bolt. No tap needed. Drill a hole equal to the screw tip size. Tap it in a couple times, then forcibly screw it in...... Done this PLENTY of times.....

 

[Poboy kartman]

Thought about that too Jim. Where do you get the bolt?

 

[fowler]

If an easy out does it if be amazed

Unless it's in half loose
Think of the standard force to undo a drain plug

Now apply that to an easy out
It'll just snap
Nothing is worse than a snapped easy out

And it's not like I'm using cheap ones
At about $12 a peice

I gotta so this all the time
When they put plugs under machines then leave them exposed to rocks
Weld a nut on
2 mins it's sorted
No special tools or odd bolts

 

[dictionary6767]

I found a friend who's gonna weld a bolt on tonight, what size bolt should I put on there it's a 19mm now.

 

[itsid]

no bolt.. a nut (as fowler suggested)
I'd say: the biggest you can find that fits,
if you take a 19mm nut you might even be able to reuse the plug
and weld inside too.

'sid

 

[machinist@large]

no bolt.. a nut (as fowler suggested)
I'd say: the biggest you can find that fits,
if you take a 19mm nut you might even be able to reuse the plug
and weld inside too.

'sid

You have to weld it on the inside, especially for the small stuff; you risk damage to the main assembly when you try to weld it on the OD. Using a Mig, hang onto the nut with a pair of pliers/ vise grips; hold in place on the stripped part, stick the exposed wire down the center of the nut, pull the trigger. Small nuts 1/4" (6mm) ID or smaller, straight down the center with the wire works fine; when you get up to and /or over 3/4" (19~20mm) you need to follow the inside edges of the nut to get the best penetration/ strength.

Pat

 

[dictionary6767]

thanks for the help guys a did it saturday night and it worked great.

 

[Poboy kartman]

thanks for the help guys a did it saturday night and it worked great.

Did WHAT????? Remember that there were more than one more solutions presented and while I assume you welded on a nut, for this thread to help anyone else- the solution needs clarity. .....

 

[OzFab]

Did what exactly? For future reference, can you provide a bit more detail please?

EDIT: Doug, you just beat me to it