mech oil pressure gauge install

[Mainer7]

Got a stupid question ...here goes.
Do I need to draine engine oil to install a mech. oil gauge sending unit?
I plan to tap into the original sending unit's hole on a '86 13BT

Thanks in advance
J

 

[Greg_B]

Check out post #15: https://forum.ih8mud.com/showthread.php?t=50699

And read this: https://forum.ih8mud.com/showthread.php?t=50176

hth's

gb

 

[Mainer7]

Yes, very helpful, Greg! Thank you. I'm really enjoying the 13bt/h55 I bought from you and Sheldon!
Have a nice day,
J