How to remove?: Nut attached to EGR valve

[k3eax]

I need to replace the EGR valve but despite efforts I cannot break-loose the nut connecting the line to the valve And yes, I've tried PbBlaster, etc.

I've thought of cutting through a portion of the line near the connecting nut and "splicing" on a new section of line with its connecting nut. This however, I'd like to avoid.

My predicament cannot be unique in the annals of Ranger ownership andso I'm hoping to hear of a solution from other who've had the same problem.

Al

(This is a cross posting that I placed on the help needed fast sub-forum)


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[RonD]

There is no trick to it, you often have to replace Valve and tube at the same time.

Even if nut breaks loose it can twist the tube past reuse.

And if you cut it one piece of the pipe will stay with the old Valve, so what will you splice to?

People have used bendable copper tube, it doesn't last as long as the steel but not expensive either.

 

[tomw]

You could try the old melted wax candle trick. Get the nut hot with a propane torch, apply a candle such that the melted wax will get drawn into the threads of the nut. Wait.
Capillary action should pull the melted wax in and provide a bit of lube. The addition of heat can also make things move. The few I have done were accomplished using a large adjustable wrench. You might check to see if there is a 'fitting' wrench that has more corners, and a cutout that will let it pass around the EGR tube. Imagine a box wrench with a section cut out only enough to fit around the tube. That can then be whacked with a hammer on the end to provide some impact.
tom

 

[tinman_72]

I pulled my header/manifold, tube and EGR valve off as a whole unit. Once it is all out it is easy to get a wrench on that nut. Yes, I had to remove everything from that side of the motor but it is easy enough to get to.

 

[camelman]

I removed the tube and EGR valve, and still wasn't able to remove the nut. If I had a bench vise, then I would have clamped the valve in the vise and likely been able to remove the nut. Instead, I did this:

1) Cut the valve off just above the threads using a dremel tool.
2) Cut the threaded portion on both sides almost down to the nut threads (the threads stick up higher than you think, so be careful doing this)
3) Place a chisel on the cut portion of the thread and whack it with a hammer... the threaded portion will split in two.
4) I had to make another cut in the threaded portion and crack it again to remove it since it was hung up on the end of the EGR pipe.

This took me about 15 minutes. Much faster than driving to the auto store for an EGR tube.