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Oil everywhere #2837211
10/25/20 09:26 AM
10/25/20 09:26 AM
Joined: Mar 2003
Posts: 1,345
Martinsville, IN
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cdwmotorsports Offline OP
pro stock
cdwmotorsports  Offline OP
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Joined: Mar 2003
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Martinsville, IN
So I have had the 451 going a couple times this year. Firstly on a carb and now on Holley EFI. The engine is now covered in oil, leaking from who knows where or maybe every gasket on the thing. Is it possible that the engine not having a pcv valve anymore is causing this? It didn't have it with the carb either. I'm just trying to figure out why all the oil all of the sudden?


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Re: Oil everywhere [Re: cdwmotorsports] #2837224
10/25/20 10:14 AM
10/25/20 10:14 AM
Joined: Jun 2004
Posts: 623
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birdtracker Offline
mopar
birdtracker  Offline
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as long as there is oil in the engine and it has good oil pressure, wipe it up as best as possible and look at a few key places. Valve cover gaskets, the oil pressure sending unit area , and the intake valley tray. I don't run a PVC valve, I just use the push in breather with evac tubes in the headers. Birdtracker

Re: Oil everywhere [Re: cdwmotorsports] #2837228
10/25/20 10:25 AM
10/25/20 10:25 AM
Joined: Jan 2003
Posts: 27,674
Irving, TX
feets Offline
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feets  Offline
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Joined: Jan 2003
Posts: 27,674
Irving, TX
I assume it has breathers instead of a PCV. If not, there's your problem.


We are brothers and sisters doing time on the planet for better or worse. I'll take the better, if you don't mind.
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Re: Oil everywhere [Re: cdwmotorsports] #2837284
10/25/20 12:57 PM
10/25/20 12:57 PM
Joined: Aug 2003
Posts: 35,914
Bend,OR USA
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Cab_Burge Offline
I Win
Cab_Burge  Offline
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Joined: Aug 2003
Posts: 35,914
Bend,OR USA
I had two PCV, one on each side along with two breather caps on my old pump gas Duster motor to help reduce the oil blowing out of the caps on the street.
I did not drive it easy or hard all the time shruggy
It had a set of Cal Custom cast aluminum valve covers from day one on it with a six pack, 4.375 bore with 1/16,1/16, low tension 3/16 oil ring at first, 4.250 stroke with 9.25 to 1 compression ratio. Adding the other PCV and extra cap help a lot, let it breathe up
I ended up changing heads to a set of MCH CNC ported Eddy RPM heads and crankshaft to a 4.300 stroke to increase the compression ratio to 10.29 to 1 and rering it to standard tension oil rings, which help a little but adding the two breathers and caps was the best change for the oil blow by up


Mr.Cab Racing and winning with Mopars since 1964. (Old F--t, Huh)
Re: Oil everywhere [Re: cdwmotorsports] #2837320
10/25/20 02:33 PM
10/25/20 02:33 PM
Joined: Jan 2008
Posts: 596
Country State of Mind
Semi-Hemi Offline
mopar
Semi-Hemi  Offline
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Joined: Jan 2008
Posts: 596
Country State of Mind
Clean up the engine first then put UV dye in the oil and run it,, get the glasses and light and look around. Been doing it this way for years with great success.


Losing Faith in this country one day at a time.
Re: Oil everywhere [Re: birdtracker] #2837328
10/25/20 03:01 PM
10/25/20 03:01 PM
Joined: Mar 2003
Posts: 1,345
Martinsville, IN
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cdwmotorsports Offline OP
pro stock
cdwmotorsports  Offline OP
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Joined: Mar 2003
Posts: 1,345
Martinsville, IN
Originally Posted by birdtracker
as long as there is oil in the engine and it has good oil pressure, wipe it up as best as possible and look at a few key places. Valve cover gaskets, the oil pressure sending unit area , and the intake valley tray. I don't run a PVC valve, I just use the push in breather with evac tubes in the headers. Birdtracker


This is exactly where I think its leaking. I just don't understand why it wasnt an issue with the carb but it is now that the EFI is on it.


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