So a truck came in today...

"Jake - Has Bad Luck So You Don't Have To" (murdersofa) 04/01/2015 at 23:30 • Filed to: None

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The head mechanic's words were "it makes a hell of a fuckin' racket"

Yeah.

I wonder why?

Zipppy, Mazdurp builder, Probeski owner and former ricerboy > Jake - Has Bad Luck So You Don't Have To 04/01/2015 at 23:34

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That is no lobe.

NonDriftingS13 > Jake - Has Bad Luck So You Don't Have To 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?

nFamousCJ - Keeper of Stringbean, Gengars and a Deezul > Jake - Has Bad Luck So You Don't Have To 04/01/2015 at 23:35

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....how does that happen?

BmanUltima's car still hasn't been fixed yet, he'll get on it tomorrow, honest. > Jake - Has Bad Luck So You Don't Have To 04/01/2015 at 23:35

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Somethings gone wrong.

crowmolly > NonDriftingS13 04/01/2015 at 23:38

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Could be insufficient/wrong oil. Or bad oil pump.

Jake- flat tappet engine?

ly2v8-Brian > Jake - Has Bad Luck So You Don't Have To 04/01/2015 at 23:40

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One of these is not like the other.

Sportwägen, Driver Of The Red Sportwagen > Jake - Has Bad Luck So You Don't Have To 04/01/2015 at 23:43

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It is now a very flat tappet camshaft :P

Jake - Has Bad Luck So You Don't Have To > nFamousCJ - Keeper of Stringbean, Gengars and a Deezul 04/01/2015 at 23:53

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A cam shaft decides not to cam anymore

Jake - Has Bad Luck So You Don't Have To > NonDriftingS13 04/01/2015 at 23:53

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I have no idea. It's from a truck engine— I believe a chevy.

Jake - Has Bad Luck So You Don't Have To > BmanUltima's car still hasn't been fixed yet, he'll get on it tomorrow, honest. 04/01/2015 at 23:54

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nFamousCJ - Keeper of Stringbean, Gengars and a Deezul > Jake - Has Bad Luck So You Don't Have To 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

JGrabowMSt > Jake - Has Bad Luck So You Don't Have To 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.

Axial > Jake - Has Bad Luck So You Don't Have To 04/02/2015 at 01:01

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#Pancake

Clay Smith's Revenge > Jake - Has Bad Luck So You Don't Have To 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.

GTAwheelman > crowmolly 04/02/2015 at 02:03

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If the lifters in the first shot belong with the cam, yes flat tappet

samssun > nFamousCJ - Keeper of Stringbean, Gengars and a Deezul 04/02/2015 at 03:01

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I am Jack's medulla oblongata?

Svend > Jake - Has Bad Luck So You Don't Have To 04/02/2015 at 03:33

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and shafts you instead.

SidewaysOnDirt still misses Bowie > Jake - Has Bad Luck So You Don't Have To 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.

Jake - Has Bad Luck So You Don't Have To > JGrabowMSt 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

Jake - Has Bad Luck So You Don't Have To > SidewaysOnDirt still misses Bowie 04/02/2015 at 07:59

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I believe it is the former.

Jake - Has Bad Luck So You Don't Have To > Clay Smith's Revenge 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.

JGrabowMSt > Jake - Has Bad Luck So You Don't Have To 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).

crowmolly > GTAwheelman 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.

crowmolly > Jake - Has Bad Luck So You Don't Have To 04/02/2015 at 09:18

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Big Block Chevy?

RamblinRover Luxury-Yacht > Jake - Has Bad Luck So You Don't Have To 04/02/2015 at 09:24

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How is it possible nobody has made a "do you even lift?" joke. How.