![]() 04/01/2015 at 23:30 • Filed to: None | ![]() | ![]() |
The head mechanic's words were "it makes a hell of a fuckin' racket"
Yeah.
I wonder why?
![]() 04/01/2015 at 23:34 |
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That is no lobe.
![]() 04/01/2015 at 23:35 |
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How'd that happen?
Did the piston stop at the top of its stroke and the valve jammed against it but the cam kept spinning or something?
![]() 04/01/2015 at 23:35 |
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....how does that happen?
![]() 04/01/2015 at 23:35 |
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Somethings gone wrong.
![]() 04/01/2015 at 23:38 |
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Could be insufficient/wrong oil. Or bad oil pump.
Jake- flat tappet engine?
![]() 04/01/2015 at 23:40 |
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One of these is not like the other.
![]() 04/01/2015 at 23:43 |
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It is now a very flat tappet camshaft :P
![]() 04/01/2015 at 23:53 |
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A cam shaft decides not to cam anymore
![]() 04/01/2015 at 23:53 |
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I have no idea. It's from a truck engine— I believe a chevy.
![]() 04/01/2015 at 23:54 |
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![]() 04/01/2015 at 23:58 |
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Idea... Comic about an engine.. the different parts are the characters. Their functions and probability of breaking are their personalities. Brilliant.
Think:
but with an engine and car parts instead
![]() 04/02/2015 at 00:14 |
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Valve spring or a valve guide failed and caused the valve to return at a different rate compared to the cam. Basically caused a hammering effect between the lifter and cam lobe. If you've got a roller type lifter, the roller could have stopped rolling.
Either way, that certainly wont buff out, but with new lifters, springs, guides and a cam, thing should be good as new.
![]() 04/02/2015 at 01:01 |
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#Pancake
![]() 04/02/2015 at 01:04 |
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A healthy engine definitely does not eat cams in any situation but for the life of me I can't figure out just how in the hell it did THAT . Even though I am can't fathom how it happened I am 100% positive the driver of the truck not only heard it when things went south he had to feel it it was definitely violent enough to send feedback through the cab.
I'll be waiting with baited breath to find out what caused that, though. Just seeing that I have to know the exact perfect storm of circumstances that added up to a cam that appears to have gad a bit chewed off of it.
![]() 04/02/2015 at 02:03 |
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If the lifters in the first shot belong with the cam, yes flat tappet
![]() 04/02/2015 at 03:01 |
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I am Jack's medulla oblongata?
![]() 04/02/2015 at 03:33 |
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and shafts you instead.
![]() 04/02/2015 at 07:47 |
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So is this how the variable lift works? In all seriousness though, I'm guessing either an interference engine that had the timing belt/chain go at one point, bending a valve stem or a clogged oil channel.
![]() 04/02/2015 at 07:59 |
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The lifters and rockers were sitting in a pile next to these. I believe a timing belt failed in some manner
![]() 04/02/2015 at 07:59 |
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I believe it is the former.
![]() 04/02/2015 at 08:00 |
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I think it was somehow the result of a timing belt failure but I have no idea how that could make a cam flatten out in only one spot.
![]() 04/02/2015 at 08:13 |
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With only three lobes (that I notice) being off, I doubt the timing was affected. When timing is off, it would noticeably affect every cylinder, potentially be impossible to drive (no compression at all).
![]() 04/02/2015 at 09:04 |
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What do you think, wrong oil? Some of the other lobes don't look so hot either.
![]() 04/02/2015 at 09:18 |
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Big Block Chevy?
![]() 04/02/2015 at 09:24 |
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How is it possible nobody has made a "do you even lift?" joke. How.