MotoHouston.com MotoHouston.com
Register Members List Member Map Media Calendar Garage Forum Home Mark Forums Read

Go Back   MotoHouston.com > General Discussion > General Discussion (Moto Related)
Forgot info?

Welcome to MotoHouston.com! You are currently viewing our forums as a guest which gives you limited access to the community. By joining our free community you will have access to great discounts from our sponsors, the ability to post topics, communicate privately with other members, respond to polls, upload content, free email, classifieds, and access many other special features. Registration is fast, simple and absolutely free, join our community!

Register Today!

If you have any problems with the registration process or your account login, please contact us.


Like us on Facebook! Regular shirt GIVEAWAYS and more

Advertisement

Reply
Share This Thread: 
Subscribe to this Thread Thread Tools
Old 03-16-2015, 11:55 PM   #1
Track_Graphics
Senior Member
 
Track_Graphics's Avatar
 
Join Date: Apr 2011
Feedback Rating: (0)
Posts: 1,566

Experience: 10+ years











Engine leaking oil through tiny cast hole under exhaust

2008 CBR1000 RR.
I noticed my left boot was covered with oil. Pretty much everything on that side of the bike had oil on it. It didn't do this until lately.

The front of the block was covered with oil on the left side. I cleaned everything dry and changed oil a few days later. I didn't run the bike and everything stayed dry- so I started the bike and watched for oil.

Sure enough - I started to see oil coming from this tiny cast hole, less than 1/8 inch, in the head. The hole is directly below the header and there is one under each pipe. Nothing seems to be in them.

I shoved a piece of coat hanger into each hole, all dry except the one on the left. It was covered in fresh oil and I saw where it was starting to run down the front or the block and actually saw it burp out a few drips.

Isn't that the spark plug drain hole? If it is - how could it be leaking oil? The drain hole doesn't go internal.

Any ideas on what's happening? Anyone see this before? Is that NOT the spark plug drain hole? BTW - the bike runs great. It's smooth, but also started running hot at idle. It used to run about 180 and now at 214.
__________________
Coolest Paint Jobs Ever
Track_Graphics is offline   Reply With Quote
Similar Topics
Thread Thread Starter Forum Replies Last Post
leaking oil triumphant675r Motorcycles Unlimited 2 10-14-2010 08:51 AM
Engine oil leaking ? Hyperevolution How To's and Q & A's 6 09-27-2010 11:20 PM
i have a tiny hole in my brand new back tire due you think i would hurt if i plugged gsxrdude Events, Meets and Rides 6 07-22-2006 09:32 AM
Triumph Leaking Oil...... Guero General Discussion (Moto Related) 6 08-01-2005 11:28 AM
Advertisement
Old 03-17-2015, 05:55 AM   #2
Bevo
Hook 'em!
 
Bevo's Avatar
 
Join Date: Mar 2009
Location: Houston-The South Loop
Feedback Rating: (0)
Posts: 24,295

Experience: 10+ years
Trackdays: 3

Bike(s):
'12 CBR1000RR Red/Black
'14 CB1000R Matte Gray
'10 CBR1000RR (destroyed)
'09 CBR1000RR C-ABS (sold)
'09 CBR600RR C-ABS (sold)

Member Garage





Quote:
Originally Posted by Track_Graphics View Post
It's smooth, but also started running hot at idle. It used to run about 180 and now at 214.
That's not hot. Depending on the air temp all mine have easily idled at more than 220.
__________________
Quote:
Originally Posted by bumblebee View Post
"I lack skillz"
Bevo is offline   Reply With Quote
Old 03-17-2015, 07:07 AM   #3
Flip Flop
Ordained Minister
 
Flip Flop's Avatar
 
Join Date: Dec 2013
Location: Cypress
Feedback Rating: (0)
Posts: 10,497

Experience: 1 year

Bike(s):
2006 SV650S(sold)(happy now?)
Toes Ducati Multistrada(what now buck?)








same with mine it'll get up to 218-220 sometimes before the fan kicks in.

it's good for it bro. Boils off any excess water from condensation in the oil.
Flip Flop is offline   Reply With Quote
Old 03-17-2015, 08:34 AM   #4
lococnc
Senior Member
 
lococnc's Avatar
 
Join Date: May 2008
Feedback Rating: (2)
Posts: 523

Experience: 10+ years

Bike(s):
2015 Tuono
2004 919
2004 FJR1300
2011 CBR250R
2006 SV650N, 2007 SV650N, 2009 TTR-110, 2002 KTM 520 EXC, Sold






You have a leaky valve cover gasket around the spark plug hole, it's filling the hole and draining out the weep hole you see. Pull that plug boot and look down in there to see if it's as described and full of oil.
lococnc is offline   Reply With Quote
Liked this post:
Old 03-17-2015, 09:31 AM   #5
Track_Graphics
Senior Member
 
Track_Graphics's Avatar
 
Join Date: Apr 2011
Feedback Rating: (0)
Posts: 1,566

Experience: 10+ years











Quote:
Originally Posted by Bevo View Post
That's not hot. Depending on the air temp all mine have easily idled at more than 220.
Just saying - Before I could leave it idle in the garage and it would go b/w 180 and about 185. Suddenly it changed. Now it's from about 214 to 218. Just concerned that with the oil leak, it might be a symptom of something more serious.

Quote:
Originally Posted by lococnc View Post
You have a leaky valve cover gasket around the spark plug hole, it's filling the hole and draining out the weep hole you see. Pull that plug boot and look down in there to see if it's as described and full of oil.
Did that late last night. I think you're right. I hope that's all it is. I hope the head gasket isn't leaking into it, but I don't know if that's possible. I wouldn't say it's "full" of oil, but it's the only one with oil in it. The rest are dry.
__________________
Coolest Paint Jobs Ever
Track_Graphics is offline   Reply With Quote
Old 03-17-2015, 09:34 AM   #6
Flip Flop
Ordained Minister
 
Flip Flop's Avatar
 
Join Date: Dec 2013
Location: Cypress
Feedback Rating: (0)
Posts: 10,497

Experience: 1 year

Bike(s):
2006 SV650S(sold)(happy now?)
Toes Ducati Multistrada(what now buck?)








Quote:
Originally Posted by Track_Graphics View Post
Just saying - Before I could leave it idle in the garage and it would go b/w 180 and about 185. Suddenly it changed. Now it's from about 214 to 218. Just concerned that with the oil leak, it might be a symptom of something more serious.
When you say suddenly, you mean like...this weekend when it suddenly got 40+ degrees warmer outside?

Mine runs cooler when it is cold outside, almost exactly as you describe. I think this is a classic case of one thing going wrong and your mind starts reeling as to what it could be, then you start grabbing at every little thing you never noticed before.
Flip Flop is offline   Reply With Quote
Old 03-17-2015, 09:44 AM   #7
Bevo
Hook 'em!
 
Bevo's Avatar
 
Join Date: Mar 2009
Location: Houston-The South Loop
Feedback Rating: (0)
Posts: 24,295

Experience: 10+ years
Trackdays: 3

Bike(s):
'12 CBR1000RR Red/Black
'14 CB1000R Matte Gray
'10 CBR1000RR (destroyed)
'09 CBR1000RR C-ABS (sold)
'09 CBR600RR C-ABS (sold)

Member Garage





Quote:
Originally Posted by Track_Graphics View Post
Just saying - Before I could leave it idle in the garage and it would go b/w 180 and about 185. Suddenly it changed. Now it's from about 214 to 218. Just concerned that with the oil leak, it might be a symptom of something more serious.
It could potentially run hotter if it's low on oil I guess
__________________
Quote:
Originally Posted by bumblebee View Post
"I lack skillz"
Bevo is offline   Reply With Quote
Old 03-17-2015, 10:32 AM   #8
Track_Graphics
Senior Member
 
Track_Graphics's Avatar
 
Join Date: Apr 2011
Feedback Rating: (0)
Posts: 1,566

Experience: 10+ years











Quote:
Originally Posted by Shelnutt View Post
When you say suddenly, you mean like...this weekend when it suddenly got 40+ degrees warmer outside?
Not applicable in this case. Temp change and oil leak seemed to get "noticed" at a relatively short time from each other. I'm and OLD POS transplanted from Packer country. Temps range from -40 to 105 every year. I know all about weather changes and temps. My bike has been consistent at the temp, and like I said, this is in the garage.

BTW - when the weather people tell you to get out there and wrap your pipes and let water drizzle from your faucet because it's going to get down to 35...... water only begins to freeze at 32. Nothing is going to burst at 35.

I've had several of my 600's overheat to more than 250 in heavy traffic on hot summer days sitting on black pavement. Sometimes my liter bikes get significantly hotter in those conditions too, but I've never had one get so hot the warning light and buzzer went off.

Just letting it sit in the garage at idle, summer or winter, it's always stayed below 190. My ZX10 was always the coolest. That thing idled just below 170.
__________________
Coolest Paint Jobs Ever
Track_Graphics is offline   Reply With Quote
Old 03-17-2015, 10:34 AM   #9
lococnc
Senior Member
 
lococnc's Avatar
 
Join Date: May 2008
Feedback Rating: (2)
Posts: 523

Experience: 10+ years

Bike(s):
2015 Tuono
2004 919
2004 FJR1300
2011 CBR250R
2006 SV650N, 2007 SV650N, 2009 TTR-110, 2002 KTM 520 EXC, Sold






Quote:
Originally Posted by Track_Graphics View Post
Did that late last night. I think you're right. I hope that's all it is. I hope the head gasket isn't leaking into it, but I don't know if that's possible. I wouldn't say it's "full" of oil, but it's the only one with oil in it. The rest are dry.
Head gasket is well below that and would not cause what you are describing. It is 99% your valve cover gasket. 1% chance cracked head.

Get new gasket and valve cover bolt seals. Make sure to read service manual and apply silicone RTV where indicated when replacing valve cover gasket. Depending on miles you may want to check valve clearances while you are in there.
lococnc is offline   Reply With Quote
Liked this post:
Old 03-17-2015, 12:32 PM   #10
BYRDMAN
WX MAN
 
BYRDMAN's Avatar
 
Join Date: Apr 2006
Location: Houston
Feedback Rating: (8)
Posts: 9,311

Trackdays: 10+

Bike(s):
2015 KTM Adventure 1190
2007 KTM 300 XC smoker
2007 KTM 300 XC smoker


Member Garage





Quote:
Originally Posted by lococnc View Post
Head gasket is well below that and would not cause what you are describing. It is 99% your valve cover gasket. 1% chance cracked head.

Get new gasket and valve cover bolt seals. Make sure to read service manual and apply silicone RTV where indicated when replacing valve cover gasket. Depending on miles you may want to check valve clearances while you are in there.
A+ information right here!
__________________
If you can read this, thank a teacher, because its in English, thank a soldier"

AMERICAN MADE WITH MEXICAN PARTS
BYRDMAN is offline   Reply With Quote
Liked this post:
Old 03-17-2015, 01:51 PM   #11
Track_Graphics
Senior Member
 
Track_Graphics's Avatar
 
Join Date: Apr 2011
Feedback Rating: (0)
Posts: 1,566

Experience: 10+ years











Quote:
Originally Posted by lococnc View Post
Head gasket is well below that and would not cause what you are describing. It is 99% your valve cover gasket. 1% chance cracked head.

Get new gasket and valve cover bolt seals. Make sure to read service manual and apply silicone RTV where indicated when replacing valve cover gasket. Depending on miles you may want to check valve clearances while you are in there.
Quote:
Originally Posted by BYRDMAN View Post
A+ information right here!
Yeah !!!! Looks like that's the problem.
But, gotta drop the engine for that, right?
__________________
Coolest Paint Jobs Ever
Track_Graphics is offline   Reply With Quote
Old 03-17-2015, 01:56 PM   #12
lococnc
Senior Member
 
lococnc's Avatar
 
Join Date: May 2008
Feedback Rating: (2)
Posts: 523

Experience: 10+ years

Bike(s):
2015 Tuono
2004 919
2004 FJR1300
2011 CBR250R
2006 SV650N, 2007 SV650N, 2009 TTR-110, 2002 KTM 520 EXC, Sold






Quote:
Originally Posted by Track_Graphics View Post
Yeah !!!! Looks like that's the problem.
But, gotta drop the engine for that, right?
Should't have to. You may have to take a bunch of off though.

It will be tight but can be done. You have service manual? If not, get one.
lococnc is offline   Reply With Quote
Old 03-17-2015, 01:59 PM   #13
Track_Graphics
Senior Member
 
Track_Graphics's Avatar
 
Join Date: Apr 2011
Feedback Rating: (0)
Posts: 1,566

Experience: 10+ years











Actually - Once I got the valve over loose- it looks like there is a small bolt that is loose and it's in line above that weep hole.
__________________
Coolest Paint Jobs Ever
Track_Graphics is offline   Reply With Quote
Old 03-19-2015, 08:18 AM   #14
bumblebee
Yeah I'm flippin' YOU off
 
bumblebee's Avatar
 
Join Date: Oct 2006
Location: Pearland
Feedback Rating: (3)
Posts: 12,261


Bike(s):
'74 Suzuki GT380
'82 XS650 StreetTracker
'10 Ducati Streetfighter
'83 Yamaha Seca 900






So did that small bolt fix it or did you replace the valve cover gasket?
I need closure...
__________________
Asphalt is for racing... dirt is for growing potatoes. - J. Diester
When seconds count... the police are only minutes away.
Grow up and be a productive member of society already.
Bevo- "I lack skillz"
bumblebee is offline   Reply With Quote
Old 03-19-2015, 02:38 PM   #15
Track_Graphics
Senior Member
 
Track_Graphics's Avatar
 
Join Date: Apr 2011
Feedback Rating: (0)
Posts: 1,566

Experience: 10+ years











Small loose bolt was tightened and the problem was solved instantly - - - -


BUT - - - -

Being that it was a lot easier than I though, I think that since I cracked the valve cover loose and took it off, it's probably a good idea to replace that thing anyway.
__________________
Coolest Paint Jobs Ever

Last edited by Track_Graphics; 03-19-2015 at 02:38 PM. Reason: typo
Track_Graphics is offline   Reply With Quote
Old 03-19-2015, 02:59 PM   #16
dbuck
Stayin' Young
 
dbuck's Avatar
 
Join Date: Feb 2006
Location: NW Houston BW8/290
Feedback Rating: (5)
Posts: 19,624

Experience: 10+ years
Trackdays: 10+

Bike(s):
02 Honda Superhawk









Send a message via AIM to dbuck
BUT....

if it ain't broke....don't fix it!
dbuck is offline   Reply With Quote
Old 03-19-2015, 03:00 PM   #17
Flip Flop
Ordained Minister
 
Flip Flop's Avatar
 
Join Date: Dec 2013
Location: Cypress
Feedback Rating: (0)
Posts: 10,497

Experience: 1 year

Bike(s):
2006 SV650S(sold)(happy now?)
Toes Ducati Multistrada(what now buck?)








Quote:
Originally Posted by dbuck View Post
BUT....

if it ain't broke....don't fix it!
But it's still overheating
Flip Flop is offline   Reply With Quote
Reply


Thread Tools

Advertisement


All times are GMT -5. The time now is 02:03 AM.


MotoHouston.com is not responsible for the content posted by users.
Privacy Policy