rearend has oil on it - PowerStrokeNation : Ford Powerstroke Diesel Forum
 
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post #1 of 5 (permalink) Old 07-19-2009, 03:46 AM Thread Starter
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rearend has oil on it

my truck has sat alot over the past two months and now that i can drive it around 400 miles since wednesday. the rearend has oil on it. only a little, just enough to make it darker. it is rearend oil. i can smell it. i tried tightening the bolts but i couldnt make them tighter than they already were. any ideas where its coming from or am i just over worried about it?
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post #2 of 5 (permalink) Old 07-19-2009, 03:57 AM
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Re: rearend has oil on it

Hypoid gear oil has a distinct smell, very strong and pungent IMHO.

There's two likely areas to leak: a) the front seal where the driveshaft enters the rear end, and b) the rear cover. There is not a gasket on the rear cover and the thin cheap metal rusts easily. Summit Racing has their brand of rear covers cheaper than most other folks, they have a little more gear oil capacity than stock plus they have a drain plug. And they look nice. Either stock or aftermarket, they seal with a bead of RTV.

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post #3 of 5 (permalink) Old 07-19-2009, 07:06 AM
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Re: rearend has oil on it

where on the rear end is the oil. on the cover/bottom. or on the front near the driveshaft. if it is towards the front you may look on the engine or transmission for a leak. it will drip going down the road and splatter on the rearend. my oil pan leaks and covers my rear end.


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post #4 of 5 (permalink) Old 07-20-2009, 01:24 AM Thread Starter
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Re: rearend has oil on it

the oil is on the bottom and the cover. i think its the seal for the cover. when i get a chance im going to take it off and reseal it. thats the cheapest fix so if that doesnt work it ill keep searching
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post #5 of 5 (permalink) Old 07-20-2009, 02:47 AM
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Re: rearend has oil on it

Use a gasket. Make sure both surfaces are clean and flat. Use Gasgacinch sealer. I've never had a leaky cover. Clean your bolts ad put a little Gasgacinch on them before installation. Torque in a cross pattern to 25 or 30 lbs. Check your breather also. Could be plugged. I use a small fuel filter instead of the vacuum tee on the end. Hope thats it.

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