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E36/7 Z3 (1996-2002)
E36/7 Z3 Roadster, Z3 coupe, Z3 M Roadster and Z3 M Coupe talk with our gurus here.

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  #1  
Old 09-29-2012, 11:01 PM
lovemyz3 lovemyz3 is offline
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Learn from my valve cover gasket mistake

I replaced the z3 valve cover gasket but I think people should know the following if they plan on DIY:

1) Remove all the hoses and wires from the guides found behind the valve cover before doing this install. Specifically, remove the hose from part #12 in the image below.

2) Inspect your air pump vacuum control hose- Mine snapped in half due to being very brittle. (labeled #3 and 4 in diagram)

What was first a valve cover gasket job has now turned into replacing the air pump vacuum control hose part #11657803732


Last edited by lovemyz3; 10-04-2012 at 08:53 PM.
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  #2  
Old 09-30-2012, 10:05 AM
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Randy Forbes Randy Forbes is offline
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If that hose was that brittle, it was wise that you changed it, so "mistake" justified
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  #3  
Old 09-30-2012, 05:12 PM
brock5ga brock5ga is offline
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Quote:
Originally Posted by Randy Forbes View Post
If that hose was that brittle, it was wise that you changed it, so "mistake" justified
+1. Many times I have to slice hoses with a razor blade to keep from breaking the solenoids or whatever nipple they may be connected to. The lesser of 2 evils and you won't have a vacuum leak when it is back together. Good call.
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Old 10-02-2012, 05:53 PM
smayo964 smayo964 is offline
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Lovemz3, so glad you posted that, even as a reminder. I'm about to do mine this weekend and I appreciate the heads up. Thanx.
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Old 10-04-2012, 08:11 PM
lovemyz3 lovemyz3 is offline
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Quote:
Originally Posted by smayo964 View Post
Lovemz3, so glad you posted that, even as a reminder. I'm about to do mine this weekend and I appreciate the heads up. Thanx.

Make sure when you do the gasket replacement that you carefully pry off the gasket and make sure you clean up with a Q-Tip any plastic/rubber that gets in the valve and the casing. YOU DO NOT WANT THINGS FALLING INSIDE THE VALVE AREA.

Be sure to put RTV around the perimeter but especially the sloping portion on each end.

Finally, I can't stress it enough that you remove the wires/hoses from the bracket that holds them so you DO NOT BREAK A HOSE! =)

Hint- I also used a Q-Tip to clean the inside track of the cover where the rubber goes in. A lot of times the old gasket breaks off inside the valve cover and you have to get it out with a q-tip or flat head.

If you do break the hose, don't worry. I replaced mine with a generic high heat resistant rubber hose from autozone. I bought a few different sizes to try to match it.

Last edited by lovemyz3; 10-04-2012 at 08:54 PM.
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  #6  
Old 10-31-2012, 04:42 AM
Ivanhoe1997 Ivanhoe1997 is offline
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Great information. Do you know the tork specs? Will get this done as soon as the gasket comes in. This seems to be a real common thing on the engine. ic
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Old 11-01-2012, 09:33 AM
lovemyz3 lovemyz3 is offline
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Originally Posted by Ivanhoe1997 View Post
Great information. Do you know the tork specs? Will get this done as soon as the gasket comes in. This seems to be a real common thing on the engine. ic
I don't know the torque specs for around the gasket but there are roughly 6 or 8 bolts for the gasket cover (its been a while). I recommend you tighten them in a counter opposing motion whereby you tighten one end a little a then another end a little. This way you get an even seal.

Feel free to shoot me a message or post on here if you have a problem.

Best of luck!!!
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Old 11-02-2012, 06:00 AM
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Randy Forbes Randy Forbes is offline
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Quote:
Originally Posted by Ivanhoe1997 View Post
Great information. Do you know the tork specs? Will get this done as soon as the gasket comes in. This seems to be a real common thing on the engine. ic
If they're 6mm bolts/nuts, the torque spec is like 8Nm__it's a low value.

The importance is that the torque is applied evenly throughout all the fasteners.

I've come across head covers that you'd think were tightened down with a breaker-bar; just stupid.
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  #9  
Old 10-31-2012, 08:19 AM
Mikey48 Mikey48 is offline
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We live we learn ! Thank you for the info !
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