Blown head gasket? - Chicagoland Sportbikes
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post #1 of 15 (permalink) Old 04-03-2010, 01:43 PM Thread Starter
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Blown head gasket?


I think the worst has happened and I have blown my head gasket!
Coming back from a ride and filling up the gas tank, I noticed that I had some oil leakage on one of my radiator fins. I rode back to the garage and cleaned the oil off. I started the bike up and revved it to 6-7k rpms and then slowly brought it down to idle, and watched the head gasket area.



In a little section of the gasket material I would occasionally see a tiny little bubble or two form. Oil was not gushing out but then again after a 30 min or so ride I think I can develop about a teeny oil spot on the radiator fin. The spark plugs do not show oil buildup and in checking the backpressure on the exhaust it seems pretty good.

1. Is this a blown head gasket in the making?
2. I probably should not ride the bike until I get this thing sorted out right?
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post #2 of 15 (permalink) Old 04-03-2010, 01:46 PM
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check the head bolt torques

-Jason
CCS AM #31
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post #3 of 15 (permalink) Old 04-03-2010, 02:21 PM

 
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It's not uncommon to have to retorque a few hundred miles after rebuild.
The heat cycles will help these parts find a happy spot if you will.

Gus
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post #4 of 15 (permalink) Old 04-03-2010, 09:46 PM
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Quote:
Originally Posted by pilotx1 View Post
check the head bolt torques
Quote:
Originally Posted by resurrection View Post
it's not uncommon to have to retorque a few hundred miles after rebuild.
The heat cycles will help these parts find a happy spot if you will.
+3
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post #5 of 15 (permalink) Old 04-03-2010, 10:20 PM Thread Starter
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gotcha, will do
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post #6 of 15 (permalink) Old 04-06-2010, 11:12 AM Thread Starter
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Still haven't had a chance to re-torque, but dumb question here:
By "check head bolts" I am re-torquing the nuts underneath the cylinder head cover, correct?
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post #7 of 15 (permalink) Old 04-06-2010, 11:38 AM
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Quote:
Originally Posted by krukster86 View Post
Still haven't had a chance to re-torque, but dumb question here:
By "check head bolts" I am re-torquing the nuts underneath the cylinder head cover, correct?
Correct. Should be on the size of an M10 (bolt size - not head)
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post #8 of 15 (permalink) Old 04-06-2010, 12:29 PM

 
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lossen then retorque criss cross.

Gus
We offer three kinds of service @ Resurrection
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You can pick any two
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GOOD service FAST won't be CHEAP
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and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
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post #9 of 15 (permalink) Old 04-06-2010, 12:33 PM Thread Starter
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gotcha guys, thanks a lot.

Gus, I think that when you attached the cylinder head cover you used some liquid gasket. What brand/type did you use?
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post #10 of 15 (permalink) Old 04-06-2010, 07:56 PM
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Just use a high temp black silicon. Only in the sharp corner that the gasket makes. VERY small dab will do it.
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post #11 of 15 (permalink) Old 04-06-2010, 10:17 PM

 
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high torque ultra gray (yama bond)

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
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post #12 of 15 (permalink) Old 04-06-2010, 10:35 PM

 
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I'll be glad to take care of that for you bring it down.I'm not sure if that's a warranty thing or a fallow up type of service.Either way it never cost to much around here.

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
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post #13 of 15 (permalink) Old 04-11-2010, 07:56 PM Thread Starter
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Nah, I think I will take care of it myself. It doesn't look to be that hard. Just got back from a trackday with my roommate. Had just enough daylight to inspect the valve clearances. Left exhaust tappet needed to be loosened a bit to stay in spec.
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post #14 of 15 (permalink) Old 04-11-2010, 08:31 PM

 
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did you ride the 360 at the track?

Gus
We offer three kinds of service @ Resurrection
GOOD - CHEAP - FAST
You can pick any two
GOOD service CHEAP won't be FAST
GOOD service FAST won't be CHEAP
FAST service CHEAP won't be GOOD
and cold beer.

I'd love to help but I don't chase parts.
Please contact other forum members and supporters for parts.
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post #15 of 15 (permalink) Old 04-11-2010, 08:53 PM Thread Starter
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oh no haha! My buddy was on his '96 CBR600 and I was spectator/pit bitch

Anywho I will give the tappets a thorough lookover again when I decide to pop the head cover off. Finding the time to do so is the hardest part

Last edited by krukster86; 04-11-2010 at 09:47 PM.
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