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black spots cilinder head bolt cover area - sealing problem or nothing? - Printable Version

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+--- Thread: black spots cilinder head bolt cover area - sealing problem or nothing? (/showthread.php?tid=5666)

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black spots cilinder head bolt cover area - sealing problem or nothing? - Riko_imp - 01-02-2016

Hmm,

did some riding in the city today, and after inspection I noticed what seems to be black spots on the right hand side cilinder head cover area, hard to describe so I encircled the spots in green:




I'll try to wipe it away as good as I can (its hot at the moment and quite far to reach) and keep an eye on it after a ride.

Does this look like a classic issue of a cilinder head cover not tightened enough to spec?
Cause when I google this small neglect, the leaks don't occur in that spot but rather on the outside on the top fins...but there its all dry..
http://cb1100forum.com/forum/showthread.php?tid=6564

What do you guys think?


Thx


black spots cilinder head bolt cover area - sealing problem or nothing? - Elipten_imp - 01-03-2016

Inspect less and ride more. LOL


2014 CB1100 DLX
2013 CB1100 Std
1990 BMW K75 RT


RE: black spots cilinder head bolt cover area - sealing problem or nothing? - Riko_imp - 01-03-2016

yeah I'm paranoia that way.

I think its false alarm Smile


black spots cilinder head bolt cover area - sealing problem or nothing? - Elipten_imp - 01-03-2016

Heck a lot of oil leaking and parts dropping off never stopped HD riders. Ride it until it fails.


2014 CB1100 DLX
2013 CB1100 Std
1990 BMW K75 RT


RE: black spots cilinder head bolt cover area - sealing problem or nothing? - wiredgeorge_imp - 01-03-2016

Take the tank off and re-torque the cover bolts... they will be about 90-95 inch / pounds but look up the torque spec. They often have to be torqued in a specific pattern for best seal.


RE: black spots cilinder head bolt cover area - sealing problem or nothing? - kmoney_imp - 01-05-2016

I wouldn't worry, I'd call that a minor sweat, and not a leak. Just wipe and monitor, and if you desire re-torque the bolts as mentioned above.


RE: black spots cilinder head bolt cover area - sealing problem or nothing? - SUPERCRUZ_imp - 01-10-2016

It is nothing. Wipe it with a rag and ride the bike.


RE: black spots cilinder head bolt cover area - sealing problem or nothing? - gmike_imp - 01-10-2016

That would be the valve cover gasket right? The manual calls it a cylinder head cover, says torque to 10 Nm (7 lbf ft) in a crisscross pattern in 2 or 3 steps. If you have already had a valve adjust it is possible that is oil that just got squished out and not wiped down. If not, I would feel safe to just keep an eye on it and wait for the next valve adjust to correct it.

I understand your concern. I abhor leaks, even weepy leaks. Some times the wife with her smaller hands can get up into spots like this and work miracles.


black spots cilinder head bolt cover area - sealing problem or nothing? - Elipten_imp - 01-10-2016

You would have gone insane riding my 1964 Sportster. If it stopped leaking that was the time to get scared! I never see a drip on the garage floor under by Hondas or BMW.


2014 CB1100 DLX
2013 CB1100 Std
1990 BMW K75 RT


RE: black spots cilinder head bolt cover area - sealing problem or nothing? - Pterodactyl_imp - 01-13-2016

(01-03-2016, 03:20 AM)Elipten_imp Wrote: Inspect less and ride more. LOL


2014 CB1100 DLX
2013 CB1100 Std
1990 BMW K75 RT

(01-10-2016, 01:26 PM)Elipten_imp Wrote: You would have gone insane riding my 1964 Sportster. If it stopped leaking that was the time to get scared! I never see a drip on the garage floor under by Hondas or BMW.


2014 CB1100 DLX
2013 CB1100 Std
1990 BMW K75 RT

Like your style Elipten. Your Sportster is like my '61 Bonneville. It sits on a drip tray and I never bother with a complete oil change. I just add after every ride. It sounds better if I call it a Preventative Maintenance Continuous Lubrication Cycling System. And before the Oil Addicts start, let me remind them that bike was manufactured in '61 and is still going strong. I don't know how many miles the bike has done 'cause the bloke who sold it to me nearly thirty years ago was an unconscionable scoundrel, with a passing resemblance in both manner and accent to Arthur Daley*, who had wound the speedo back.

Cheers

*Our British members will know Arthur. "A nice little earner" has since passed into the vernacular and, sadly, Arthur has since passed on.