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Old 06-18-2017, 10:56 PM   #1
WilloCO
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Join Date: Jan 2017
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Freaking valve cover washer seals...

After parking on an incline, I headed home and had some oil smoke. Crawled around and found oil all over my trans and burnt on my headers.
I found signs of oil on the back of the valve cover and thought one seal looked a bit loose.
Every single bolt on the valve cover was loose. The seals got soft when they warmed up and allowed things to loosen up.

I used some aftermarket seals I had on hand. I will use BMW washer seals and maybe some threadlock going forward.

Sigh, it was getting pretty clean under there.

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I bedded my pads when I switched from ceramic to my PDF-Z pads. They actually caught fire during bed in.
05 330xi 6 speed
RIP: 86 e30 w/E36 M3 suspension build
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Old 06-19-2017, 02:31 AM   #2
Pro325ie46
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Join Date: Jun 2015
Location: Texas
Posts: 468
My Ride: 2004 BMW E46 325xi
Huh? So you forgot to tighten all of them when you did your valve cover gasket or what haha!
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Old 06-19-2017, 06:07 AM   #3
jfoj
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Join Date: Nov 2009
Location: Fairfax, VA USA
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My Ride: 330CiC, M5, X5, E93
No Loctite needed.

The normal way the valve cover is installed is to have the grommets distort and provide the clamp load for the valve cover. The valve cover bolts/nuts are tightened in a pattern about 4-6 times a small amount each time until the valve cover bolts/nuts actually bottom out. They are then tightened only a small bit more until the bolts/nuts are snug.

Whether OEM or aftermarket grommets the valve cover bolts/nuts will be bottomed out and torqued or snugged just a small amount.

You clearly did not have tighten the valve cover bolts/nuts to the point they bottomed out.
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Old 06-19-2017, 09:07 AM   #4
WilloCO
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Location: Colorado
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My Ride: '05 330xi 6 speed
I followed the torque rating, but achieved it without bottoming out the bolts.
I'm going to tighten them up before heading to work this morning.
I will probably re-do my entire VCG and seals in a week or so to be safe.
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Quote:
Originally Posted by YoitsTmac View Post
I bedded my pads when I switched from ceramic to my PDF-Z pads. They actually caught fire during bed in.
05 330xi 6 speed
RIP: 86 e30 w/E36 M3 suspension build
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Old 06-19-2017, 10:33 AM   #5
Starvega
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Torque ratings are dumb. Do it by feel, you'll know when to stop.
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