Gen 1: 2004-2005 broke valve cover bolt - Kawasaki ZX-10R.net
 
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post #1 of 9 Old 08-08-2011, 07:41 PM Thread Starter
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broke valve cover bolt

the leak on the left side had gotten much worse for me so I thought maybe I could tighten the bolt a bit. I get to it, and as soon as I try to turn it, it snaps right off and now the leak is got way worse. How fucked Am I?
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post #2 of 9 Old 08-08-2011, 07:48 PM
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Get a small drill bit and an easy out that fits in the hole and back it out

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post #3 of 9 Old 08-08-2011, 07:52 PM Thread Starter
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I can't get much access to it since it's right under the frame. I called a local shop and will be bringing it in to see what they can do, I need my valves done so hopefully they can take care of this problem.
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post #4 of 9 Old 08-08-2011, 07:56 PM
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Yeah they will be able to take care of it, I wouldn't be to worried. I snapped a bolt head of in my clutch when I replaced it a couple years ago and it was no problem getting out

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post #5 of 9 Old 08-08-2011, 08:03 PM Thread Starter
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That's nice to know, I'm leaving for work the day after tomorrow for about 2 weeks and this would've been bothering me the entire time since I've heard some horror stories about this before.
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post #6 of 9 Old 08-08-2011, 09:27 PM
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Take the valve cover off. There might be enough left to grab with vice grips or something. Take care to not get any metal bits that flake off the bolt into the valve area.
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post #7 of 9 Old 08-09-2011, 11:19 AM
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This is pretty common the bolts that hold the valve cover on are SOFT. The way they are designed there is a shoulder on the bolt. when they are tightened down the shoulder makes contact and thats as tight as the bolt gets, If you keep turning it the bolt just stretches and breaks because it cant tighten anymore. These bolts are only torqued to around 8 Foot pounds. Just barley snug is all they take.

The good newes is is not hard to fix. you need to remove the valve cover, And the cam girdle that the bolt is broken in. Then juse use a drill press and an ez out and it will come right out. I have done the same thing before.

Good tech tip........tighten the bolts will never fix a leak the rubber gasket has shrunk or got compressed and needs to be replaced and the bolts cant put anymore pressure on it because they are bottomed out on the shoulder.

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post #8 of 9 Old 08-09-2011, 05:26 PM Thread Starter
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Quote:
Originally Posted by bugman53 View Post
This is pretty common the bolts that hold the valve cover on are SOFT. The way they are designed there is a shoulder on the bolt. when they are tightened down the shoulder makes contact and thats as tight as the bolt gets, If you keep turning it the bolt just stretches and breaks because it cant tighten anymore. These bolts are only torqued to around 8 Foot pounds. Just barley snug is all they take.

The good newes is is not hard to fix. you need to remove the valve cover, And the cam girdle that the bolt is broken in. Then juse use a drill press and an ez out and it will come right out. I have done the same thing before.

Good tech tip........tighten the bolts will never fix a leak the rubber gasket has shrunk or got compressed and needs to be replaced and the bolts cant put anymore pressure on it because they are bottomed out on the shoulder.
That makes alot of sense, I guess I learned this the hard way. lol
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post #9 of 9 Old 06-16-2017, 07:35 AM
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same thing happend to me. i cant take the engine out right now because this is is my only transportation. i removed the radiator a little bit away from engine and use a bunch of high temp gasket maker on the seal where is leaking and it work, it doesnt leak no more and on the broken screw i i put some on the bottom of the screw and then put it where it goes. when it was a little dry i put more on top of screw. i weld shit with high temp gasket maker and it work, you just need about 2 tubes of high temp gasker maker.
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