Re: IML: Oil Breather Caps, and for my '56 in particular #2

[randalpark@xxxxxxx]

In spite of gravity, the wind from the fan will blow the oil back. The only oil landing on the water pump from the filler tube, is that which drips from the filler cap filter after the engine is shut off, or that which is spilled when adding oil.

 

Crank case pressure is relieved by the breathing system built into this engine. It is one of the most freely breathing engines ever made. As posted earlier, that system is made up of the filler tube, baffles in the tappet chamber cover, the draft tube, and the associated filters. There are filters in both ends because the air flow can go either way, depending on running conditions.

 

If very much oil is expelling from the filler area, this system is not operating properly, most likely due to plugged up filters, or baffles in the tappet chamber cover. It is also possible that the engine has so much blow by that it is causing this same sympton, however, based on other posts about this so far, that is most likely not it. Based on engine design, it would take a tremendous amount of blow by to cause this symptom in these cars.    

 

Paul W.

 

-----Original Message-----
From: YBSHORE@xxxxxxx
To: mailing-list@xxxxxxxxxxxxxxxx
Sent: Wed, 20 Sep 2006 5:21 PM
Subject: Re: IML: Oil Breather Caps, and for my '56 in particular #2

Paul and Imperialists Alike,

 

    In the case of my '56, the way the top filler breather vent cap is tilted more toward the radiator, when the oil would condensate in the filler and drip after serious cruises, gravity pushed oil more onto the water pump area than back toward the hot manifolds or block.  I do not show signs of leakage anywhere one would suspect pressure seals to be compromised due to the excessive build up.  The lower breather tube is long enough, and was, over much, much time, relieved, thusly I do not yet believe I have internal or seal issues...............yet. Let you know after I reinstall, but this I will say:  she has never not purred.  I am quite anal about every drip and it drives me and my mechanic wild and this was just beginning to be "of concern"!!!!

 

Respectfully,

 

ybshore

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