8BA Dipstick tube removal?

[38convsedan]

Any tips on removing a dipstick tube? Engine is in the car, seems like a tight fit between block and exhaust manifold…
Tool suggestions?

As always, thanks in advance!
Steve

[Ggmac]

It unthreads . Its 1/2x20 tpi . I use a pair of pliers .

[38convsedan]

Just tried pliers…wouldn’t budge.

[ponymare]

It might have come loose and somebody brazed it to the pan.

[Ken Henry]

Maybe put something inside to prevent crushing it, then vice grips

[Tim Ayers]

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If you can get in there, I've had luck using a plumber-type strap wrench wrapped around the base.

[19Fordy]

If possible, grip the pliers close to where it tube threads into the block.
Try not to destroy the tube.

[Roger W Gerow]

I've used a large enough screw driver blade that fits snugly inside the opening. Then you can use a monkey wrench on the square of shaft to turn it out.