There is a strange looking threaded insert installed in the side of the oil pan. It's a perfect round stamped hole, doesn't look to be home made. Never seen anything like this. I'm going to pull it and weld the hole shut, was curious if anyone has an idea as to what this was intended for.

 

Oil temp gauge sender????????????????????Henry

 

Looks like a potential oil leak to me.

 

x2

 

If it doesn't leak why not leave it alone, who knows - you might want to fit an oil temperature gauge someday.......

Roger.

 

Potential oil level warning light switch bung?

 

Obvisously you guys have never worked on Holley carbs. It's a oil level adjustment screw. Remove screw and add oil until it comes out the bung. FULL!

 

I know on a jet boat they do this so they can change the oil easier they would hook a hose to it. because u can't always get the drain pan under the engine in the boat.

but this looks farther up.

 

How come you would need to have a certain oil level to use a holley carb? That sounds a little bit counter-intuitive. Is it because the oil filler tube is obstructed of sorts?

 

For the X and win, you guys are all wrong. That is an aftermarket add on - most of you got that. But it's actually an extension used to hang your trouble light on when working under the car in those dark spaces. Ever notice how when you need a light down there, there's nowhere to actually hang it? Well with this simple mod, when you're done, you just screw it in a little tighter for that 'neat clean look'.

Paul Lynde told me Jay Leno designed these for his car collection. Jay's always looking for new car $hit to baffle the enthusiast market and boost ratings!

Now, I need a new fishin pole, that old one just got broke in 2 and my hooks are bent straight!

 

For boats i would prefer the suck-it-from-the-dipstick-tube method...

 

I have one of those on my compressor, open it up to let the water out. Since water floats on top of oil it works great. A lot easier than replacing head gaskets.

 

I vote oil return for a very massive turbo!!! Get some!!!

 

I'm going to go with this too. It's way too high up to be any type of drain, but it would be likely to have a sensor here to measure either oil level or oil temp. What kind of car is this on anyway? If it's a stamped hole from the factory, there has to be some documentation. Have you looked at any CSMs or parts manuals? Not suggesting it's rare but it's unique....

 

Rob,

My boats are all 2-Stroke rotax, no dipstick for me!

Burn baby burn!

-Tony

 

Hopefully not Sea-Doo's. I have been nearly stranded by them things 3 out of 4 trips to the far side of the lake. Oil and fuel injection issues for the most part, leaking jet pump seals the other.
The rental place finally got rid of them...

Had another experience with a Mercury O/B. Musta reversed the 32:1 ratio to 1:32, as that thing smoked and ran like crap at 1 knot max.
Our Evinrude oil injection also crapped out and seized the motor.

Two strokes are great, but I will only take ones where you premix the fuel.
Oil injection is too unreliable...

 

Hey Rob,

Nah i custom make my hulls out of fiberglass, too cheap to buy a commercially made one.

I dont trust the oil injection systems either. I usually just bypass them and take out the oil injection gear (yes, it's not a pump, it's a small 50 tooth plastic gear that spins in a pool of oil, hoping to inject it).

I digress, back to olds

 

This hole wasn't drilled it was stamped somehow, it's perfectly round and the metal is bend out in perfect little peddles so there is enough material to tap threads. It's just odd!

 

I vote for the oil temp aftermarket gauge or after market oil cooler return line maybe?

 

Jag, what kind of car and year are we talking about?

 

65 cutlass 330 4bbl engine

 

Yeah right.
Ok, hands up, I didn't spot that one straight away.

Roger.

 

Oil heater for cold weather?
I bought a used intake that had a threaded hole down in to the exhaust gas cross over never did figure out what it was for.
railguy

 

So there IS an exhaust crossover in the intake? I thought that was a chuvy thing. No wonder my POR15 engine paint is burning off the center of the intake...

 

They all do that Rob. No I don't think there is a crossover. I have a spare intake manifold in the garage. I'll pull it out and take a look, but the only thing that would be close to where you have your scorched paint would be the EGR valve IIRC.

 

They do have a cross over Mine is blocked off.I never run it during cold months so it's not unnecessary.No need to heat the air any more then it already is.
railguy
That's what the Egr is for It blocks off one exhaust forcing it to go under the intake and out the other side heating the air and intake.EGR Exhaust Gas Recirculation.
railguy

 

Low oil light unit..........Only on the oldsters as I remember.....