Is there supposed to be any kind of grommet or o-ring sealing the dip stick tube? Figuring there is,lol. I've had a bad leak for a few days and after looking around I found the valve cover had bolts backed loose. Tightened them down and plan on using some lock-tight on them this weekend, but either way only seems to have cured half the problem.
The motor is a fresh rebuild by a reputable builder so I doubt its the main seal.All the leaking is on the back half of the motor. Which comes back to what I ask at the beginning. What is used to seal the oil dipstick tube?
The motor is a 70s model 350

 

There's no seal.

 

hm..... really didn't expect that answer. Guess I'm gonna have to get a rag and clean the area since i've fixed the valve covers and search for it. Just bugs me since i'm going through about a quart of oil in 3 days. That and the oil I buy is like $7 a quart...
Thanks for the info

 

If you're losing that much oil then it's probably a ventilation problem. I'd check PCV.

 

Maybe the rings have not sealed yet and you are getting blow by pressurising the crankcase. People have been know to blow the dipstick right out in some bad cases
As noted back sure your PCV sytem is operating correctly

 

Check the oil pressure sending unit, on driver side right next to the distributor. Also check knock sensor on pass side of the block towards the back of motor.....

 

Knock sensor goes into the water jacket at bottom of block

 

OK then, haven't looked at one since I trashed my piece of s%&# 305 TPI yrs ago...

 

hm....don't believe I have a knock sensor. Simple carb set up. Didn't think pcv could cause much leaking but i'll check that. Thanks for the input. I have push in breathers now. I may go ahead an install the little valves and hook it up to the carb

 

Need to clean engine and identify exactly where oil is leaking from.