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Old 05-03-2014, 11:34 AM   #1
NickZ20
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Oil leak and motor mount

I don't want to clutter so I figured I'd kill two birds with one stone.

I'm getting a clunking noise, not feeling, under what appears to be the drivers side of the engine bay, my passenger mount actually looks brand spanking new, so my suspicion is even more now, the drivers side mount, because from what I can see trying to peak under the air box it looks old. Passenger side looks clean, new, still has the cover on top and all. So I'm guessing driver's wasn't replaced.

I have very very very light oil in my spark plug area, but the under carriage is covered. The head looks clean, but I'm guessing the dealer only cleaned it up to look good. I traced the oil up the the front of the motor, driver's side, about half way up the motor. Any thoughts what that could be? Thanks for reading!


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Old 05-03-2014, 01:19 PM   #2
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clunking noise - when? idle? acceleration? driving over bumps?

as far as the oil leak: halfway up the front of a Zetec on the driver's side is in the ballpark of the PCV orifice. I've seen some leaking from mine where the flange meets the engine block.
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Old 05-03-2014, 01:25 PM   #3
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Quote:
Originally Posted by my_beautious_ZX3 View Post
clunking noise - when? idle? acceleration? driving over bumps?

as far as the oil leak: halfway up the front of a Zetec on the driver's side is in the ballpark of the PCV orifice. I've seen some leaking from mine where the flange meets the engine block.
Sorry, vibration at idle, sometimes pops in between shifts, sometimes over bumps and less often but sometimes when I turn. Didn't seem to really do it at higher speeds.
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Old 05-03-2014, 01:57 PM   #4
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alright, well you could be looking at a couple of unrelated problems, some not serious.

Focus clunking over bumps is often attributed to sway bar endlinks. Clunking when you turn could be wheel bearing or CV joint.

Vibrations at idle might be fixed by a tune-up and/or new motor mounts. A worn motor mount does not necessarily look worn, unless it has mechanically failed. So, you might have to replace one/all mounts even if they look okay (btw - stick with OEM not retail brands).

If the idle is uneven or the engine flirts with stalling, then that could be due to other things as well.
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Old 05-03-2014, 02:02 PM   #5
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Nah mechanically the engine is incredible, doesn't skip a beat. Again it's not a physical pop, I can't feel it even the slightest, only hear it in between the shifting and stuff. I'll have to check into the other options when the rain finally goes away.
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Old 05-03-2014, 03:57 PM   #6
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Be cautious about a brand new looking motor mount. If it is an OEM part from FORD you are probably fine. After market parts though are another story.

How do you tell what is on your car now?

If it's OEM there will be the Ford name within an oval around the name, raised in the metal.

If it is after market the part number, most likely "2938", will be raised in the metal near where the two screw holes are for mounting on the head.

I just recently pickup up a "BRAND NEW" in the box Anchor brand passenger side hydraulic mount. It has/had the hydraulic slosh sound when I shook it at the parts counter (The part number, "2938", was unmolested. When installing the after market part the last two digits of the above part number, "__38", get flattened when torquing down the bolts during installation).

It was bad right out of the box. It had as much vibration as a solid mount would have, "2938SR". Looking at the mount I could see what was probably a very fine leak of fluid long before I got the part, already dried. Probably a failed part during manufacturing with no quality control. fwiw

reference: http://www.focusfanatics.com/forum/s...ghlight=anchor
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Last edited by a_2000_se; 05-03-2014 at 04:07 PM. Reason: reference
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Old 05-03-2014, 04:07 PM   #7
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Thanks for the info, that mount seems good, I didn't check for a Ford symbol. I did buy an anchor brand drivers side top mount because I pay less than cost for them, they have a lifetime warranty, and the fact that I'm financing the car on a budget it's all I could do for now. Now I just have to find the time to install it.

On the passenger side hydraulic mount though, I took the top cover off and I'm not sure how it's suppose to look but it is holding fluid and vacuum sealed(if that makes sense).
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Old 05-03-2014, 05:39 PM   #8
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Got a shot of the mount. I think it's toast, kinda looks split apart?

Can't really tell anything on this side.
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Old 05-03-2014, 07:32 PM   #9
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believe it or not, that's how the driver's side mount is supposed to look! It's kind of a neanderthal design, with molding residue. Like I said, you can't always judge a mount by its appearance. But, if it's never been replaced on an 11-year old car, then it may be due for renewal.
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Old 05-03-2014, 07:39 PM   #10
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Yeah, but in the first picture on the right side of the picture towards the bottom, it's cracked all up that side. The symptoms I'm getting aren't harsh, the vibration isn't horrible, but appearant, the clunking also isn't bad, again it's just heard not felt, so I'm lost.
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