Oil fill tube removal. 1968
 

Would like to remove the oil filler tube on my 68 Chevy engine (275 hp 327). Cast iron intake with Q-Jet. Would like to install a different one with PCV fitting.


I got it to move a little bit. It rocks, but tapping the top ring from underneath, it just won't come up.

Is it peened in from the bottom? Swaged out a bit? Can't tell by looking and there isn't much room to see anything even with an articulating boroscope. I really don't want to remove the intake, as it doesn't leak and I would rather not disturb it.

It may be swagged slightly, but more likely to have carbon/sludge build up on the tube, unless it has been cleaned on the underside lately. Try soaking it for a bit with carb cleaner and see if you can rock it more. May take a healthy dose of that thing we aren't known for.....damned patience. If you happened to have a wooden dowel the right size to fit close to snug in the tube, you can use that to get more leverage to convince it to rock.....gently, not after you are thoroughly irritated...:wink:

----When I didn't care about the oil filler I was removing I have had good luck twisting it with the largest vise grips you have or something similar. Do it towards the top if you can so the tube won't get too out of shape towards the hole....Bill S

It’s just a tap in fit. They can be stubborn sometimes though. Heat is also your friend. Just be careful of the China wall seal at the front of the intake.

Jason

That's what I thought Jason. I have tapped them out before without a problem.

Really stubborn. Soaked it in penetrating oil in case there was some rust holding things up. It is NOT frozen, or I wouldn't be able to rock it back and forth.

I am able to get a pretty good hit on it from underneath with a baby sledge hammer. Have not deformed it yet, and would prefer not to. Gonna let it soak bit more. Waiting on my carb body from Eric anyway. Threads were stripped at the inlet and he is installing a heli coil.