srshaw3

I am removing my oil cooler lines to deal with a leak, in an '07 ZO6.

Do you know, or know a source, for the size of the coupling connection between the line and the oil cooler? Maybe 1"?

Any suggestion on what type of wrench to remove with, with consideration to the tight quarters doing so?

I was able to remove the top line, but the bottom line is more difficult.

Thank you for any thoughts.

HK770

I doubt you'll find SAE bolts/nuts on a 2007 U.S. Auto ,but stranger things have happened !

srshaw3

Thanks, a 1" open end seems to fit about right, but the areas is too small to use. I ordered a set of crow foot wrenches.... we will see!

3X2

remove the clip and pull the line out of the fitting.

srshaw3

Sorry, I don't know what clip you are referencing. As I mentioned I have the top one off, and it is threaded, and holds the line into the cooler. I do not see any "clip".

3X2

This explains it. There may be a black plastic piece over the conncetion, just pop it off and slide it down the line to access the clip.

srshaw3

I did pull out the service manuals, and they show a special tool needed, so am not sure it is exactly the same. Considering the limited access, I am not sure it will be any easier to get, and replace that clip, but it certainly is an option. Thank you.

srshaw3

For historical purposes, if anyone else need the answer that worked for me. I used a 1" crow foot to get them off, and presumably the same to tighten them up after replacement or rebuild of those lines.