Oil sending unit pipe leaking

[scavenger]

Hi,
I need help on trying to tighten the brass colored pipe at the rear of the block that the oil sending units are attached to. I have been wondering why I smell burned oil shortly after start up and discovered that this brass colored pipe is loose, and I can't tighten it enough to keep it from leaking because the sending units hit up against something preventing it from turning. I think I am going to have to remove the sending units, tighten the pipe, then re-connect the sending units. The problem is I can't get at this stuff because of other things in the way. Any way to get at the sending units and pipe without removing a ton of stuff.......Thanks

1985 Full size, 305 motor, 700r tranny

 

[jimmyjack]

There are two ways to deal with this. The first is to do it right and remove all the garbage in the way and build a taller stem like you said, or take some solvent, cleaner, I use 409, and spray the base where it threads into the block. Use q tips or whatever and get rid of all the old oil and grime and grit then silicone it. I had a bad oil leak in the back of my intake manifold. I REALLY didn't want to remove it so I gooped the bejeezis out of it. It lasted 2 yrs. /forums/images/graemlins/shocked.gif

 

[rogerwilco71]

Hate it when that happens, especially without a body lift. Pull all the crap out and fix it...you'll sleep better. Are you sure it's just not the oil-pressure sending unit? They tend to pop after so many years (twice in ten years for me). I'd replace it for the $19-20 while you're in there.

 

[scavenger]

Thanks Jimmyjack and Rogerwilco71,
It is leaking where the pipe goes into the block. I turned it as much as I could (a quarter of an inch) before it hits ups against something and it still leaks. It's off to Napa I go to get everything so I can do it right....thanks again.

 

[R72K5]

might as well convert to mechanical while youre back there anyways, dont have to have tall stem for that and can tighten it up all you want, i just converted my 81 over to mechanical when i swapped in the 350 engine

good luck