engine throwing oil out dip stick

evenlope · 07-31-2007, 09:27 PM

My husbands 1979 Ford F350 one ton truck with a 460 engine is throwing oil out the dip stick terribly. The entire engine is coated in oil. He has checked the PVC valve and it has suction when he disconnects it. Do you have any ideas for him? It was his late fathers truck and he would be heartbroken if the engine went.
Thank you for any help!

75K30 · 07-31-2007, 10:11 PM

Welcome to the site.
Too bad about the truck, but lets see if we can shed some light on it. MAybe it is not that bad

We should first starrt by asking what is different between before and now? You checked the PCV, but that is only half of it. What is the condition of the vent on the oil fill cap on the other side of the engine? How is the original air cleaner where the hose attached to the cap? Is the hose still attached? IS the originall air filter closed element system still on the truck?
Are you absolutely positive that the PCV is not partially stuck?
Any amount of air flow that is disturbed may cause this problem. It is pretty common with the 460.

Moostang · 08-01-2007, 06:24 AM

I agree with 75k30 to check the PCV and check to see that the valve cover is venting properly. If those are all fine then it could be the rings going. In that case I would do a compression check on all of your cylinders.

Ford4x4Chik27 · 08-01-2007, 10:49 AM

Ugh.... blow by. I have that on my ford. But I don't really worry bout it cuz I'm replacing the motor anyway... I hope you get/got it figured out!

peterbilt · 08-01-2007, 10:55 AM

flush the engine with kerosine, mite have a porthole clogged. change oil filter after you do that.

scottie · 08-01-2007, 11:08 AM

might as well replace the PCV (like $3) and get your hands on a vacuum gauge and see what your gettin

07-31-2007, 09:27 PM	#1
evenlope Junior Member Join Date: Jul 2007 Posts: 1	engine throwing oil out dip stick My husbands 1979 Ford F350 one ton truck with a 460 engine is throwing oil out the dip stick terribly. The entire engine is coated in oil. He has checked the PVC valve and it has suction when he disconnects it. Do you have any ideas for him? It was his late fathers truck and he would be heartbroken if the engine went. Thank you for any help!

08-01-2007, 06:24 AM	#3
Moostang Senior Moderator Join Date: Apr 2005 Location: Cali-4 Nye-Aye? Posts: 1,744	I agree with 75k30 to check the PCV and check to see that the valve cover is venting properly. If those are all fine then it could be the rings going. In that case I would do a compression check on all of your cylinders. __________________ Rock, Paper, Scissors, Lizard, Spock http://moostangproductions.com

08-01-2007, 10:49 AM	#4
Ford4x4Chik27 Senior Member Join Date: Sep 2004 Location: Sac-Town, Cali Posts: 1,585	Ugh.... blow by. I have that on my ford. But I don't really worry bout it cuz I'm replacing the motor anyway... I hope you get/got it figured out! __________________ '93 Isuzu Amigo, Toyota Axles/Tcase/Drivelines, 35" MTR's '01 Pathfinder, making a huge effort to keep it stock, since it's my DD

08-01-2007, 10:55 AM	#5
peterbilt Senior Member Join Date: May 2007 Location: Florida Posts: 1,942	flush the engine with kerosine, mite have a porthole clogged. change oil filter after you do that. __________________ ~Eric~ ɹǝʌo ǝɯ lloɹ 'sıɥʇ pɐǝɹ uɐɔ noʎ ɟı

08-01-2007, 11:08 AM	#6
scottie Senior Member Join Date: Jan 2006 Location: South Florida (Palm Beach), originally from south of BOSTON Posts: 644	might as well replace the PCV (like $3) and get your hands on a vacuum gauge and see what your gettin __________________ im a straight shooter with upper management written all over me

07-31-2007, 10:11 PM	#2
75K30 Senior Member Join Date: Jul 2006 Posts: 2,992	Welcome to the site. Too bad about the truck, but lets see if we can shed some light on it. MAybe it is not that bad We should first starrt by asking what is different between before and now? You checked the PCV, but that is only half of it. What is the condition of the vent on the oil fill cap on the other side of the engine? How is the original air cleaner where the hose attached to the cap? Is the hose still attached? IS the originall air filter closed element system still on the truck? Are you absolutely positive that the PCV is not partially stuck? Any amount of air flow that is disturbed may cause this problem. It is pretty common with the 460.

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