help with oil leak?

[cpayne6335]

Hey all,

I thought I patched my massive oil leak. It is coming out of the dipstick flange on the oil pan!!!!! I have cleaned it, put rtv around it, jb weld, you name it, I have done it. Still it is leaking a bunch of oil.

I do not have the time to pull the engine to fix this. I have tried to unscrew the flange and that was a no go also. I tried this for the international kit.

I have been fighting this leak for a week + and am about done fooling with it.

[JLR350]

I had the same problem with my 99 powerstroke, I was able to unscrew the big flange nut off of the oil pan, clean it all very good, and then I put a generous amount of RTV silicone around it and put the nut back on good and tight. I then let it sit for 24hrs. That was last January; I use my truck pulling hard at least 3 to 4 days a week and have not had a problem since. The main thing is getting it very clean and letting it sit to make sure the silicone is very very dry. I tried it a couple times without it being super clean and not letting it sit before I finally got it fixed right.

[cpayne6335]

was it hard to get the nut off? I had a pipe wrench on it, and it would not turn...... I guess I will try it agian tonight and see what I can get done... thanks for the help JLR.

[JLR350]

Chris, I cannot remember what I used to remove the nut. I do remember it was not that easy. I am thinking that I used a large pair of channel locks. Lemme know how it goes, good luck. Jared

[cpayne6335]

could not get nut off... broke a tool, lost my mind.... and stoped for a while, then tried some more rtv. I injected some under the nut, and then covered the rest of the area up with rtv. (the starter is off for more room)

could a valve cover leak about 4 qts in 20 miles? I need to degrease the engine again and tripe check the hpop lines, turbo parts.......

is there any other oil lines in this engine that could leak?

Thanks Chris

[cpayne6335]

Hey, here is a redneck idea..... anyone try and weld the nut to the pan???? Still debating that one, but time for bed....lol

[adfields]

Originally Posted by cpayne6335

Hey, here is a redneck idea..... anyone try and weld the nut to the pan???? Still debating that one, but time for bed....lol

Plumbers epoxy may work for you, comes in a stick at Home Depot and the like. You cut off a hunk, kneed it till its all one color, and slap it to a very clean surface. Use starting fluid or brake cleaner to be sure all the oil is gone and don’t touch with oily fingers. I did a structural repair inside a T-case with it where the chain front output bearing support broke it 3 years ago. To my amazement it is still holding and I have hammered on it a bunch, I think it’s now stronger than when it was new.

I have heard of a plug or something in the back of the valve cover leaking that is very hard to find so you may want to look around up there also.

[cpayne6335]

update... RTV failed again..... so I cleaned it all off and got a "metal bonding agent" let it set up, and it leaked! but in a differt spot this time, so I will clean that area and reapply the stuff..... it does not leak as much, but over time I could blow up the engine.... so I will try again.... I did look at the plumbers stick stuff.... that is the next step I think, or just bite the bullet and put a new oil pan on......

[Flyin5]

have you checked your dipstick tube o-ring? I chased my oil leak around the flange for a while before i realized half of my leak was from the dipstick tube itself.

[cpayne6335]

Yes, My old tube was rusty and came out in 3 pieces, so I have a new tube, new oring, and a bunch of rtv for a extra seal. at first that is what I tought, so I was going to replace the seal, but the tube just could not get out, and started to break on me.