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VW MKIV-A4 TDIs (VE and PD) This is a general discussion about A4/MkIV Jetta (99.5-~2005), Golf(99.5-2006), and New Beetle(98-2006). Both VE and PD engines are covered here.

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Old May 20th, 2013, 16:12   #1
eddieleephd
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Default Weird oil leak on the back of alh engine

Hey I am trying to diagnose an oil leak on the back of the engine, it is not the turbo, valve cover, and doesn't appear to be head gasket.

I cleaned it all up and wiped down to as clean as possible, no significant oil present, then started it up and let it present again.

The only place I can see it coming from is the engine mount on the pulley side of the engine.
it runs down the back side then down the block.

I cannot think of something that should leak here. There is no oil in the timing cover or on the belt as I can see.

I have recently used a engine mount bracket repair kit on it purchased from idparts.

Any ideas of what might leak??????
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Old May 20th, 2013, 16:19   #2
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EGR valve is weeping?

That's what mine was - twice.
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Old May 20th, 2013, 16:19   #3
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EGR valve?
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Old May 20th, 2013, 16:21   #4
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Camshaft seal??
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Old May 20th, 2013, 16:24   #5
eddieleephd
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Yeah the EGR is good and there is no oil in the timing belt cover so not the cam shaft.

I am looking a bit lower near the engine mount bracket...
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Old May 20th, 2013, 16:30   #6
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maybe it could be the camshaft seal...

any other thoughts??
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Old May 20th, 2013, 16:45   #7
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How about the oil galley plug? There is 2 on the timing belt side. And one on the transmission side.
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Old May 20th, 2013, 16:50   #8
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The camshaft seal typically leaks BEHIND the plastic plate underneath the timing belt components. Frequently seen where you report a leak.....
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Old May 20th, 2013, 16:55   #9
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Quote:
I have recently used a engine mount bracket repair kit on it purchased from idparts.
Hmmm.
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Old May 23rd, 2013, 05:54   #10
eddieleephd
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Quote:
Originally Posted by turbotec View Post
How about the oil galley plug? There is 2 on the timing belt side. And one on the transmission side.
Is this like a freeze plug?
I will be taking timing belt cover off to replace the cam seals so will be able to see everything.
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Old May 23rd, 2013, 07:36   #11
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Quote:
Originally Posted by eddieleephd View Post
Is this like a freeze plug?
I will be taking timing belt cover off to replace the cam seals so will be able to see everything.
Yes. Just like a freeze plug, but only about a 1/2 inch in diameter. This spot leaking is mostly unlikely, but the other guys listed all the other locations I would have suggested.....This is just one place I would also check!
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Old May 24th, 2013, 19:15   #12
eddieleephd
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Quote:
Originally Posted by whitedog View Post
Hmmm.
sorry that was dieselgeek block repair kit...

I had my panzer plate on and hit a riser on the side of the road...
Saved the oil pan and broke the little ear the bracket holds on to...

so I am gonna change the cam shaft seals and likely clean turbo at the same time, with the engine down and forward I will have more room to work...
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Old May 25th, 2013, 03:39   #13
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I believe I remember some one else having leak from a broken ear mount. I am pretty sure they had to seal it with epoxy.

You might take a closer look and call DieselGeek to discuss this possibility.
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Old May 25th, 2013, 15:44   #14
eddieleephd
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Thanks I have looked it over a few times and have seen nothing...

One more thing to have a good look at when it is apart in the next couple weeks weather permitting.

For now I am planning on a intake and turbo cleaning along with cam shaft seal replacement.

really sucks I have had the timing belt off more than I ever expected!!
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