Common spot for oil leak? - Ford Powerstroke Diesel Forum
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post #1 of 13 Old 04-25-2013, 12:36 PM Thread Starter
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Common spot for oil leak?

So I have an oil leak on the passengers side of the engine that runs down to the trans. Besides the valve cover what on that side of the engine would leak oil? I plan on putting new valve cover gaskets on soon just haven't gotten to it yet.

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post #2 of 13 Old 04-25-2013, 12:43 PM
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vc's are good. No need to waste money there. Look in the valley of the motor. See if theres a puddle under the fuel bowl or the turbo area. The hpop can leak or the turbo/pedestal can be the other source.

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Theres also a plug on the back of each head ,that could leak, but not common though...Riffraff Diesel: Oil Rail End Plug Gasket/O-ring

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post #3 of 13 Old 04-25-2013, 08:24 PM Thread Starter
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There is some oil in the valley would that make it down the passenger side of the engine?

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post #4 of 13 Old 04-25-2013, 09:14 PM
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i had a drippy leak on the passenger side for a while that left a little puddle everywhere i parked. i decided one day that i was going to find that leak after i did an oil change with synthetic. i used up 5 cans of citrus degreaser on the underside of the engine and kept hosing it off until i got 10 years of gritty grease off of the underside.

it's been about 3 or 4 weeks now and there is no sign of a leak now

apparently synthetic oil is supposed to leak worse than dino....
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post #5 of 13 Old 04-25-2013, 09:15 PM
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and i've read that the dipstick tube in the oil pan is a common place for leaks
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post #6 of 13 Old 04-25-2013, 09:19 PM
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Is it oil or dirty fuel?

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post #7 of 13 Old 04-25-2013, 10:34 PM
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Quote:
Originally Posted by Lunnzz View Post
There is some oil in the valley would that make it down the passenger side of the engine?
Yes it will. There is a weep hole in the back of the valley on the passenger side where everything drains down.

Quote:
Originally Posted by steve604 View Post
and i've read that the dipstick tube in the oil pan is a common place for leaks
This is true as well.

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Originally Posted by GunnerB View Post
Is it oil or dirty fuel?
Good call. Dirty fuel very closely resembles oil.

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post #8 of 13 Old 04-25-2013, 10:53 PM
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Quote:
Originally Posted by Lunnzz View Post
So I have an oil leak on the passengers side of the engine that runs down to the trans. Besides the valve cover what on that side of the engine would leak oil? I plan on putting new valve cover gaskets on soon just haven't gotten to it yet.

Thanks
Does it leak on the exhaust manifold side of the passenger or the intake manifold?

If it's the exhaust manifold side then chances are the VC bolts may just be loose.

If it's in the valley you will not see it leak from the outside, it will all drain behind the bellhousing.

Also could be the O-ring on the back of the head.

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post #9 of 13 Old 04-26-2013, 06:48 AM Thread Starter
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Quote:
Originally Posted by hucorey View Post
Does it leak on the exhaust manifold side of the passenger or the intake manifold?

If it's the exhaust manifold side then chances are the VC bolts may just be loose.

If it's in the valley you will not see it leak from the outside, it will all drain behind the bellhousing.

Also could be the O-ring on the back of the head.

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Are you talking about the O-ring thats on the plug that is on the back of the heads? I tightened all the valve cover bolts that were easy to get to and they were tight. I did some reading last night and watched a video and mine is draining oil through that weep hole. I am going to clean all the oil out of the valley that I can get to and start the truck and check to see if I can find the leak. If I can't find the leak I am still just going to get the seal/o-ring kit from RiffRaff and some other parts and change them. Like I said before truck is about to roll over 200k and I am sure it won't hurt to change them out.

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post #10 of 13 Old 04-26-2013, 12:09 PM
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Quote:
Originally Posted by Lunnzz View Post
So I have an oil leak on the passengers side of the engine that runs down to the trans. Besides the valve cover what on that side of the engine would leak oil? I plan on putting new valve cover gaskets on soon just haven't gotten to it yet.

Thanks
Is the oil leak coming from inside the bellhousing out the flywheel inspection cover or down the outside to the starter?

And yes to the O-ring for the plug on the back of the head. Is that one leaking?

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