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Undid cylinder head cover bolt, can't tighten!!!
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06-23-2018, 02:20 AM | #1 |
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Undid cylinder head cover bolt, can't tighten!!!
Hello,
Yesterday I undid this bolt by mistake thinking it had some connection to the vacuum pump. Now, it doesn't want to tighten back up! Image on link below to show which one I mean. The one with the rubber under the bolt head. https://photos.app.goo.gl/2EzjPtXuZ6hSRWX5A It just spins freely where the thread isn't catching in the hole. The rubber is too stiff to compress. It doesn't want to come out either so I can inspect the hole. Any ideas? |
06-23-2018, 06:40 AM | #2 |
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You could try cutting the rubber bit off with a Stanley knife. This might give the bolt some extra movement so that you can lift it a little to help it catch on the threads to help you extract it. Then it may be a case of retapping the hole and/or just fitting a new bolt and rubber depending on what kind of state it's in.
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06-23-2018, 08:39 AM | #3 | |
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06-24-2018, 03:12 AM | #5 | |
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06-24-2018, 11:17 AM | #6 |
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What an absolute ball ache if it's sheared. One problem - it doesn't come out!! There's a sleeve type thing which looks to be flared and it won't pull out..
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06-25-2018, 05:31 AM | #8 |
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Thanks all. One last thing I need to try is to try and grip the sleeve and undo the bolt - it may come out like this if the sleeve is threaded too. Not sure. If it does I can inspect the hole to see if it has sheared and then go down the route of Easy Out, re-tap and new bolt.
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06-25-2018, 05:39 AM | #9 |
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Looking at an image, the sleeve bit might be threaded!
https://goo.gl/images/TKfYpy I am hoping that this just needs moving further up the bolt so it can engage properly into the hole. Fingers crossed! |
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07-09-2018, 03:50 PM | #11 |
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I think (someone wiser will confirm) that bolt has a second flange, within the sleeve bit, so won’t come out. Again I think it’ll be a case of taking the whole part off, undoing the other screws, removing the offending screw (chop head off) and then refitting the lot. Then becomes a question of “what else whilst it’s off?”. If it is one with a second flange, the same happened on my manifold when I overtightened (working tired...). Had to take all off and back the screw out with pliers.
Good luck, you’ll be a better mechanic for it! 😀 |
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07-11-2018, 06:47 AM | #12 | |
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