HI All: My oil dipsticks tube become loose, I can't remember if it has to have an o-ring or else which can be the cause of this. Thanks in advance. Best. Raul.

 

No O ring.Press fit.

 

442Harv: Tx for your answer, wonder why now it become loose.

 

It may be cracked and ready to break.

 

not at all, almost perfect condition I would say, tried many things to no avail, finally I provoque a small deformation with a vise a hammer it in place. thanks all for your help. Raul

 

Most times the bulge ring that goes into the block is too large and must be ground down slightly in order to get it into the hole in the block.

 

Look at your dipstick tube. There are two formed beads and a flange. The tube needs to go all the way into the block until the flange seats against the block. It's likely loose because it isn't all the way in.

 

Tx for the heads up Joe!, but yes, I make sure it was all the way down.

 

Well, that's unusual. Most times the two beads are too large and won't even go into the block. You can try to flatten the bead area slightly, which would ovalize the tube and make it larger in one direction. Also consider a little RTV under the flange when you insert it.

 

Modest sandpaper abrasion of the two beads then placement of the tube in the (deep) freezer.

 

His dipstick tube is too LOOSE.

 

Ooops. I guess my grey matter is loose, as well. Forget that idea!