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Old 06-25-2006, 12:04 PM   #11
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I just got the valve cover off and didn't see anything wrong with the head/valvetrain. I did, however, find pieces of metal wedged in between the timing chain and cam gear and is preventing any valve action.
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Old 06-25-2006, 12:28 PM   #12
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time for pics
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Old 06-25-2006, 12:35 PM   #13
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time for pics
I will have to get it into my garage and up on jack-stands before I can get pics. I tried to get one of the pieces out but it slipped down further. It looks like I will have to tear the front cover off. This involves removing the top motor mount and the belt and tensioner then, I can I get to start on the dozen or so bolts holding the front cover on. From what Icould see of the metal, it almost looks like alluminum.
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Old 06-25-2006, 01:06 PM   #14
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hummm... chain tensioner broke or head gasket material.
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Old 06-25-2006, 06:19 PM   #15
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i hope hypermiling hasn't ****ed up his saturn. This be a bad case agaist us.
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Old 06-25-2006, 06:23 PM   #16
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This doesn't sound like hypermiling to me,

My dad's timing belt snapped, just happens sometimes.

Also, working at the shop for only a month I saw about a half dozen tensioners fail.
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Old 06-25-2006, 06:26 PM   #17
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My preliminary examination doesn't suggest that. The head itself seems to be fine. Everything (rocker arms etc.) seems to be snug and in their proper place. I would tend to agree with JanGeo about it being a chain guide. If you saw them you would wonder how they do their job. I did replace them when I did the head swap. Until I get the front cover off I beleive this was due to a random FUBAR incident.
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Old 06-25-2006, 06:28 PM   #18
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I guess you don't have any bent valves or anything then, which is good,
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Old 06-25-2006, 07:19 PM   #19
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My brother says that the timing for the injectors may be screwed up also - not timed with the cam properly would result in gas injection when the valves are closed and causing gas puddles but that would not totally kill the engine - more likely timing slip on the chain/belt or a snapped keyway? I don't know the valve train to know for sure. At least it didn't lockup on you.
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Old 06-25-2006, 08:12 PM   #20
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Quote:
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My brother says that the timing for the injectors may be screwed up also - not timed with the cam properly would result in gas injection when the valves are closed and causing gas puddles but that would not totally kill the engine - more likely timing slip on the chain/belt or a snapped keyway? I don't know the valve train to know for sure. At least it didn't lockup on you.
I'm leaning towards the timing chain guides or a snapped keyway. I'll tear into it in the morning.
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