Pre 84 Trucks 1st gen pickups

Oil Blowing Out

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Old Dec 18, 2007 | 04:55 PM
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frank_claytor's Avatar
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Oil Blowing Out

Y WOULD OIL BLOW OUT OF THE FRONT HOSE ON THE VALVE COVER WHILE DRIVING ON A 22R
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Old Dec 18, 2007 | 06:02 PM
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From: PNW
you are probably suffering from blow by. The oil cover usually has a hose the vents to the air filter...as to exactly what is causing it in your, not sure...
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Old Dec 18, 2007 | 06:03 PM
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From: Hopkins, MN
Could the PCV be plugged/not working?
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Old Dec 18, 2007 | 06:53 PM
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From: Sweet Home, OR
Check/replace PCV for starters. If it still does that, you likely have excessive blowby. Unfortnately its most likely caused by worn out engine components (rings, etc.)
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Old Dec 18, 2007 | 07:22 PM
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I got the same problem, replaced my PCV. Didn't do much so I am just going to run it 'till she blows
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Old Dec 22, 2007 | 09:12 AM
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From: Mexicali, Baja California Mexico
Had the same thing on mine and worked my motor till doom got smoke coming out little by lithe and increasing had to put a tube all the way down and waited for the fat lady to sing... gave him a viking funeral well deserved
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Old Dec 26, 2007 | 06:29 PM
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can i run any test on the motor to narrow it down
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Old Dec 26, 2007 | 08:52 PM
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From: Sweet Home, OR
compression
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Old Dec 27, 2007 | 06:40 PM
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what should the compression be
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Old Dec 27, 2007 | 08:42 PM
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From: Sweet Home, OR
128 psi to 171 psi per my haynes manual.
The important thing is that all the cylinders are within 10% of each other.

If you need directions:

Last edited by rowdy235; Dec 27, 2007 at 08:55 PM.
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