Just had a 272 rebuilt and am getting alot of oil dripping from draft tube.

Any ideas will help. New draft tube filter installed,oil breather cap cleaned

and clear.Draft tube still has return spout intact.Has any body had this same problem

and got a fix??

Thanks, Newbi member

Are you sure the draft tube oil return tube is clear?

Paul

Once I failed to get the filter can on straight and it leaked and ran down the outside of the tube. The can fits down inside a lip and it is easy to get it on crooked and not sealed.



Tom from the chiggerfarm located in the beautiful Heart of Central Texas

When you cannot dazzle others with your brilliance, baffle them with bullcorn!

Further; remembered a couple of other causes that have been reported. Unit may not be sealed to the block properly. And one case reported of the base having a rust pin hole. Also on one brand of filter, the metal outer screen on it is to long & may prevent sealing of the cover properly. May require trimming back with tin snips.. hope all this helps?

Paul

I'm just guessing here, but if it is a fresh rebuild you may be getting some blow-by into the crankcase and out the road draft tube until the piston rings seat properly. Maybe just watch it for a couple of hundred miles and see if the dripping from the tube slows down.

Rono 

  Ron Lane,  Meridian, ID

I second the suggestion of the filter can not sealing correctly. They will leak pretty good there.

Dan      Kingman Az.      86409

Is the oil leaking down the outside of the draft tube or down the inside?

If it is leaking down the outside, then you could have a misaligned cannister or the top of the cannister where the single hold down bolt goes may have been crushed a smidge so that when fully cinched down, the bolt cannot keep the bottom of the can from wobbling. If this is the case, then you would need to remove your cannister, turn it upside down on flat surface, get a sizeable socket and strike it with a hammer to get the sheet metal to go back towards original spec. Check that pesky flat-o-ring at the bottome of that cannister too.. that could be a problem...misalignments are easy to do.

If it is leaking down the inside of the tube (I have had this happen to me too), you have too much blow by from new rings. In the past, I have removed the downdraft tube completely, installed a flat plate to cover the hole (FoMoCo made those to spec also), and then installed a valley pan up top that had the vent opening for Crankcase Ventilation. You could either run a down draft tube from there like most of the late 50s model cars had or you could use this a PCV port to send over to your carb/intake. There are plenty of posts about how to plumb that kind of job to your Y.

How much are you leaking? Does it get worse with higher RPM or remain the same?

Keep us up to date, we are here to help.

Daniel Jessup

Lancaster, California

aka "The Hot Rod Reverend"
check out the 1955 Ford Fairlane build at www.hotrodreverend.com

If you want to plug the hole in the block permanently you can use the proper size cup type frost plug and a couple of correct size bolts to plug the bolt holes as they go right through into the inside of the block.

  

Tube is clear of any obstruction.Checked this out first thing,so this isn't the problem

Thanks, Chuck

Engine still has very low miles so this could be the problem[rings not broken in ]

However when cars were new I don't think that would have been a problem.

Will keep an eye on mileage plus oil drip quanity

Thanks, Chuck