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Old 03-26-2010, 08:15 PM   #46
Big Duke 6
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Valve cover leaking

I have an 09 f800gs-around 2500 miles- and have not noticed a leak yet. By the descriptions it sounds like a problem that I had with a Honda CB750 back in the early '80s. Honda was just starting to block off/severely restrict emissions "blow back" by plugging the crankcase vent tube. This caused excessive crankcase pressure to build up and push oil out the valve cover gasket and run down onto my foot. With the water stalling and the charcoal canister problems, the way I understand it, It could be similar. The cure on the Honda was to remove the plug!
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Old 03-26-2010, 08:15 PM   #47
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Good to see ya Joel. i've enjoyed reading your posts and glad your back.... Your a great asset IMO and appreciate your insight on issues.
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Old 03-26-2010, 08:38 PM   #48
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Originally Posted by BMWHillbilly
Good to see ya Joel. i've enjoyed reading your posts and glad your back.... Your a great asset IMO and appreciate your insight on issues.
+1 Joel. What BMWHillbilly said.

There's no way to keep these forums from becoming dick-swinging contests from time to time. But you have given us high value info for free. And you should know that many of us here appreciate it.

David
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Old 03-26-2010, 10:50 PM   #49
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Originally Posted by WoodWorks
+1 Joel. What BMWHillbilly said.

There's no way to keep these forums from becoming dick-swinging contests from time to time. But you have given us high value info for free. And you should know that many of us here appreciate it.

David
+1 I too have reached my wits end on this forum and had to spend some time away a while back so I didn't go insane from all the dick-swinging. I understand completely. I am extremely gad to see you around again. IMO, you've always brought good info to the table and tell it like it is. I appreciate it too Joel.
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Old 03-27-2010, 08:18 PM   #50
JRWooden
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Joel:

Yeah... what they said, good to hear from you again!

Whenever II get back to St. Louie I'm buying you dinner ....
Mandy and Ryan's too ... if they would see fit to be seen with the likes of me (and you) in public

Jim
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Old 03-28-2010, 12:59 AM   #51
JoelWisman
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Originally Posted by JRWooden
Joel:

Yeah... what they said, good to hear from you again!

Whenever II get back to St. Louie I'm buying you dinner ....
Mandy and Ryan's too ... if they would see fit to be seen with the likes of me (and you) in public

Jim
Sounds great. Ryan's not afraid to be seen with me. Mandy... Maybe lol
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Old 03-28-2010, 09:21 AM   #52
JRWooden
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Originally Posted by JoelWisman
Sounds great. Ryan's not afraid to be seen with me. Mandy... Maybe lol
We might be able to talk Mandy into it ... she was seen in public with ME ... so you gotta be up-hill from there
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Old 05-18-2010, 09:13 PM   #53
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Ok antoher leak, usually i let it go until it starts spewing out and the oil level would actually drop but i've had the 5th gasket in 33,000k's done 1000k's ago its been looked at at least 7 times no one can fix it and im over it.

Has anyone had theirs fixed or doe it themselves succesfully without it starting again 6K miles later?
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Old 05-19-2010, 07:01 AM   #54
ebrabaek
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Going in tomorrow to Sandia BMW, NM.....Mine began leaking at 2800 miles.... Along with the leak came a pretty awe full valve tick first five seconds from start....Sort of like how a hydraulic lifted engine sounds....with out oil in the lifters.....Then after about five seconds it goes away.... Anyone else noticed this????


Erling
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Old 05-19-2010, 07:47 AM   #55
WoodWorks
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Originally Posted by ebrabaek
Along with the leak came a pretty awe full valve tick first five seconds from start....Sort of like how a hydraulic lifted engine sounds....with out oil in the lifters.....Then after about five seconds it goes away.... Anyone else noticed this????
They all do that.

No, seriously Erling, mine has been clattering away at startup since day one, and I've just passed 21,000 miles. Joel has posted an extremely thorough expiation of what's going on here.

David
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Old 05-19-2010, 10:18 AM   #56
JRWooden
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Valve cover leak...

I've got the leak also ... started at about 8K miles.

The manual says sealant is needed along the left side (only) of the gasket.
I would hope that before a new gasket (properly sealed of course) is installed that the valve cover would be checked for any warpage... there have been cases of that being noted...
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Old 05-19-2010, 10:44 AM   #57
YetiGS
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Mine has it too, no big deal just a seep. I mentioned it to my dealer and he said, "Yeah, looks like BMW forgot to put gasket sealant on a few bikes when they built 'em." I said, "A few??"

I'll have them try to fix mine when it goes in for its 12,000 service.
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Old 05-19-2010, 12:13 PM   #58
JoelWisman
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Quote:
Originally Posted by RAD800
Ok antoher leak, usually i let it go until it starts spewing out and the oil level would actually drop but i've had the 5th gasket in 33,000k's done 1000k's ago its been looked at at least 7 times no one can fix it and im over it.

Has anyone had theirs fixed or doe it themselves succesfully without it starting again 6K miles later?
5 gaskets! That's insane! I hate saying this, but take your bike to another dealer and explain the situation.

It's not rocket science, the cover needs to be flat, shoulder bolts the correct leingth, rubber top hats correct thickness, no positive pressure from the crankcase, gasket, head and cover mating surfaces spottlessly cleaned of oil, rtv liberally applied to left side only.

If just the original gasket leaks, ok, throw another on. If that leaks in short order, it's time to check all of the above. It only takes 20 minutes to check all of the above and corporate isn't stingy about paying for what's really wrong.
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I love and miss you Jeneca and I'm sorry.
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Old 05-19-2010, 10:35 PM   #59
RAD800
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Yeah its going to their other dealeship to have a diffrent mechanic to have a better look at it, its not a BM dealer but he's certified.
I'm starting to think the bolts could be part of the problem as they say everything is straight, maybe some new bolts with some crush tubes 0.5-1.5mm shorter than the bolts might help get it that little bit tighter on the head.
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Old 05-20-2010, 12:38 AM   #60
JoelWisman
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Quote:
Originally Posted by RAD800
Yeah its going to their other dealeship to have a diffrent mechanic to have a better look at it, its not a BM dealer but he's certified.
I'm starting to think the bolts could be part of the problem as they say everything is straight, maybe some new bolts with some crush tubes 0.5-1.5mm shorter than the bolts might help get it that little bit tighter on the head.
the shoulder bolts, top hat washer, and rubber gromette are cheap, I can order one of each up and measure if it will help.

Also I submit measurement of crankcase pressure is in order.

This is done by finding a nipple that will screw in where the dipstick goes, or ordering another dipstick, drilling it and attaching a small nipple, then run a hose from there to the front so you can watch a pressure gauge as you ride.

A simple turbo boost gauge will work fine.

0-1 psi is great, 2-3 is marginal, 4 or more psi shows either the breather system is blocked or there's massive blow by.

Let me know if you need help. Something is not right and I'm sorry your having to deal with it.
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I love and miss you Jeneca and I'm sorry.
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