What's this bolt for and why is it leaking oil?
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Road Captain
Joined: Oct 2007
Posts: 618
Likes: 3
From: So. Cal
What's this bolt for and why is it leaking oil?
I thought it was just a motor mount bolt but it just started leaking. It was loose so I tightened it up...but it still leaks oil pretty good. What up?
Road Warrior
Joined: Feb 2008
Posts: 1,337
Likes: 3
From: Houston, Texas
Not sure exactly what that bolt does, but its right below the upper rocker box. Factory gaskets are bad. Lots of bikes are getting new gaskets installed under warranty. Have your bike looked at.
Road Captain
Joined: Jul 2006
Posts: 656
Likes: 2
From:
well either your head has a minor crack allowing oil to get out through the back of the threading, or you simply have a leak from one of the rocker gaskets that just happens to be occuring just over that bolt. And yeah, it is a motor mount, it helps stabilize the cylinders.
Banned
Joined: Jan 2009
Posts: 1,551
Likes: 6
If the bolt was loose, the head is now cracked and leaking oil.
That bolt is threaded into a blind hole. the hole does not penitrate into the section of the head that floods with oil, therefore the head is cracked. The crack is due to bolt being loose and allowing upper motor mount to rattle. The constant shock of the rattle cause the head to crack.
Make Hd fix it.
That bolt is threaded into a blind hole. the hole does not penitrate into the section of the head that floods with oil, therefore the head is cracked. The crack is due to bolt being loose and allowing upper motor mount to rattle. The constant shock of the rattle cause the head to crack.
Make Hd fix it.
Elite HDF Member
Joined: Nov 2006
Posts: 4,525
Likes: 8
From: Wheeling, WV
well either your head has a minor crack allowing oil to get out through the back of the threading, or you simply have a leak from one of the rocker gaskets that just happens to be occuring just over that bolt. And yeah, it is a motor mount, it helps stabilize the cylinders.
Take it in under warranty, if that is still an option.
Last edited by WVHogRider; Jun 3, 2009 at 07:25 AM.
Elite HDF Member
Joined: Dec 2007
Posts: 4,271
Likes: 29
From: Green Country,Oklahoma
Oil is seeping from rocker box cover over the bolt,no big deal,wait till it gets worse or have it fixed now.
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Road Captain
Joined: Oct 2007
Posts: 618
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From: So. Cal
Thank you for all of your input. I'm no longer under warranty and, of course, I'll be really pissed if it's a cracked head. Either way, it's got to go in- I'm getting splattered by oil! I'll post the results sometime next week.
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Ultimate HDF Member
Joined: Sep 2005
Posts: 8,641
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From: Ozark Country
Just curious, but why is the bike no longer under warranty?
I noticed that the bike is a 2008 Nightster, and the standard factory warranty is to 2 years, unlimited mileage...
Unless the bike was purchased before June 3, 2007 it still should be covered under warranty, unless I'm missing something.
I noticed that the bike is a 2008 Nightster, and the standard factory warranty is to 2 years, unlimited mileage...
Unless the bike was purchased before June 3, 2007 it still should be covered under warranty, unless I'm missing something.
